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A-1 Guaranteed Heating & Air, Inc.

Heating & Air Conditioning
|
Contra Costa  Napa  Solano  Sonoma Counties
Diamond Certified Company Report
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A-1 Guaranteed Heating & Air, Inc.
378 SURVEYS
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  • Rating
18 CONSECUTIVE YEARS
SINCE JANUARY 2008
CERT 1249

Diamond Certified Ratings Dashboard

378

Verified Customers

Surveyed

Customer Loyalty

Customer Satisfaction

Helpful Expertise

READ ALL 378 SURVEY RESPONSES

Company Credentials

  • Liability Insurance
  • Business Practices
  • Current Complaint File
  • Workers Compensation
  • License Verification
  • Legal & Finance

Company Report Menu

  • Survey Responses
  • Diamond Certified Video Player
  • Researched Articles & Profile
  • Capabilities
  • Photos
  • Expert Contributor Advice & Tips
  • Website & External Feeds

Diamond Certified Company Report SUMMARY UPDATE March 2025

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A-1 Guaranteed Heating & Air, Inc.

Rated Highest in Quality and Helpful Expertise for 18 Consecutive Years.

Quick Summary

  • Diamond Certified since 2008
  • Installs, replaces, repairs and maintains HVAC systems for residential clients in Solano, Contra Costa, and Napa Counties
  • Family-owned and operated since 1996
  • Partners with Energy Upgrade California

Top News Updated

AWARDS & MILESTONES

A-1 Guaranteed Heating & Air, Inc. was a finalist for “Best HVAC Companies in the Bay Area” in SFGate’s 2024 Best of Bay Area awards.

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NEW PRODUCTS & SERVICES

A-1 Guaranteed Heating & Air, Inc. is now offering investor-driven heat pumps that carry up to $1,400 in rebates and $2,000 in tax credits.

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Top Survey Responses

From a recent Diamond Certified Survey Response: “They were very professional and helpful, and they went out of their way to make sure I was getting a good deal. I would use them again.”

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From a recent Diamond Certified Survey Response: “They’re honest, pleasant and very professional. They come out twice a year to do maintenance checkups and make sure everything is in great shape for the coming season. I’ve been very pleased with how they do business.”

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Discounts & Promotions

A-1 Guaranteed Heating & Air, Inc. is offering a 5% discount to seniors and military personnel. The discount cannot exceed $100 for service or $500 for new equipment.

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A-1 Guaranteed Heating & Air, Inc.
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Diamond Certified Researched Articles on A-1 Guaranteed Heating & Air, Inc.

researched article

An A-1 Guaranteed Heating & Air technician works on a client’s HVAC system.

A-1 Guaranteed Heating & Air, Inc. is a family-owned and operated HVAC business that serves residential clients in Solano, Contra Costa, and Napa Counties. The company installs, replaces, repairs and maintains a wide variety of HVAC systems, including furnaces, evaporator coils, compressors, vents and ducts. One of the first electrification contractors in California, A-1 Guaranteed has also partnered with Energy Upgrade California to increase its customers’ overall energy efficiency and achieve even greater savings by upgrading their homes. Currently, the company has been converting homes to Zero Net Energy homes, resulting in major utility savings and in some cases even eliminating the electrical portion of the bill.

Owners Richard and Krissy Hiteshew established A-1 Guaranteed Heating & Air 29 years ago, and they’ve since expanded to serve thousands of Bay Area customers. The company’s efforts have also translated to community recognition—it has received 17 awards for “Best HVAC Company in Solano” from the Vallejo Times-Herald, the “Spirit of Solano” award and KRON 4’s coveted “Best of the Bay” award for four years.

A-1 Guaranteed Heating & Air is a factory-authorized dealer of Bryant, Coleman, Fujitsu and Bosch HVAC systems. A new “Kasey’s Klub” membership program was created in 2017, which offers discounts and optional levels for the maintenance of existing HVAC systems.

“We’re honest and upfront with our customers, and we make sure they get exactly what we promise. If there’s ever a problem, we’ll do everything we can to make it right, whether that means removing a system or completely refunding an investment. The happiness and comfort of our clients is the most important aspect of our business.”

With HVAC services, poor quality work isn’t just a nuisance—it’s potentially dangerous. There are many reasons to hire licensed HVAC technicians to install or repair your heating or air conditioning systems. You’ll get better-quality work that lasts longer and, most likely, saves you money on energy bills. However, it’s important to also remember that a poorly installed or maintained unit is actually a safety hazard. Air conditioning units contain harmful chemicals, such as Freon, that require special training to properly handle.

“HVAC is about more than just putting a unit in someone’s house,” says Krissy Hiteshew, co-owner of A-1 Guaranteed Heating and Air, Inc. “It also has to do with the quality of incoming air, which can affect people who have asthma or lung problems. There are many variables.”

Your HVAC contractor should also conduct duct pressure testing, now required by California law, to check for leaks. Not only do leaky ducts drain efficiency from HVAC systems, they can also carry contaminated air into your home.

There are safety control designs built into every HVAC system that reduce the risk of personal injury and fires. These protective devices vary slightly from one unit to another, depending on whether the air conditioner or furnace is gas or electric. Take the following steps to make sure your system performs safely and efficiently.

Regularly clean the air filters in your furnace and air conditioning systems.
If the filters get clogged with dirt, dust or debris, it restricts air flow throughout the system. This can lead to motor strain and overheating, which pose a fire hazard.

Check your thermostat to make sure it’s set properly.
Make sure the reading is set on "Heat" and at the proper temperature. When the air conditioner is running, make sure the "Cool" setting is at an appropriate temperature to avoid constant operation.

Purchase a simple volt meter at your local hardware or home improvement store.
Use it to check your circuit breaker to see how many volts of electricity are going to your HVAC unit. The circuit breaker is one of the most important safety controls on your system. If a power surge of more than 240 volts occurs, the circuit breaker should trip, shutting off the unit.

Secure the wiring. The low-voltage wires on your HVAC system are part of the safety controls. Check all electrical connections and make sure they’re tight.

Customer service is so important to A-1 Guaranteed Heating and Air, Inc., says vice president Krissy Hiteshew, that most of its business comes from referrals. The family-run HVAC (heating, ventilating and air conditioning) contractor operates under the golden role of customer service: Treat people as you'd like to be treated. The company believes in doing "whatever we can to make customers happy," says Mrs. Hiteshew.

Mrs. Hiteshew estimates that A-1 Guaranteed Heating and Air has the highest percentage of NATE (North American Technician Excellence)-certified technicians of any South Bay HVAC company. That's important, she says, since NATE is the number one testing program for the HVAC industry and requires its technicians to undergo continuous training to keep their certifications in good standing. A-1 Guaranteed Heating and Air also holds monthly information and training meetings to keep its technicians updated.

Mrs. Hiteshew, who co-owns A-1 Guaranteed Heating and Air with her husband, Richard, says the company takes an honest approach with its customers. "We're with them for life," she says, with a crew of factory-trained technicians and a pledge to be "courteous, fair, thorough, and professional in every service we provide."

To help it honor that pledge, A-1 Guaranteed Hearing and Air records and listens to phone calls made to and from its offices. Mrs. Hiteshew personally calls every customer following the completion of their job. In addition, the company distributes a survey to customers–satisfied or otherwise–in which they can offer feedback and voice concerns.

A-1 Guaranteed Hearing and Air also offers a full line of Green products for home energy efficiency and holds the distinction of being Solano County's first Green HVAC company.

Diamond Certified Researched Capabilities on A-1 Guaranteed Heating & Air, Inc.

Service Area

serving area
Solano County
Contra Costa County
Napa County
Serving All of Solano, Contra Costa and Napa Counties, Including Richmond, Calistoga and Oakland

Main Services

Heating & Air Conditioning
  • Ac Tune Ups
  • Air Conditioner Repair
  • Air Conditioning
  • Commercial Air Conditioning
  • Ductless Heating And Cooling Systems
  • Furnace Repair
  • Heat Pump Repair
  • Heating
  • Hvac Installation
  • Hvac Replacement
  • Mini Splits
  • Water Heater Repair

Additional Services

Air Conditioning & Heating
Indoor Air Quality
Residential Installation & Service
Tankless, Traditional & Heat Pump Water Heaters
Insulation & Windows
Heat Pump Systems With Inverter Technology
Heat Pumps
Electrification

Company Info

Hours
Mon
08:00 am - 05:00 pm
Tue
08:00 am - 05:00 pm
Wed
08:00 am - 05:00 pm
Thu
08:00 am - 05:00 pm
Fri
08:00 am - 05:00 pm
Sat
Closed
Sun
Closed
Open Now
Mon – Fri: 8am – 5pm
Sat: By Appointment
Website
Contact
A-1 Guaranteed Heating & Air, Inc.

Capabilities Table

Company Name
A-1 Guaranteed Heating & Air, Inc.
Phone Number
DCID Number
DCID7076450734, DCID9256098800
Managers
Nick Hiteshew, General Manager
Years in Industry
25+ (Manager)
# of Employees
26
License
719381
Memberships
American Canyon Chamber of Commerce, Better Business Bureau, California Chamber of Commerce, Electric & Gas Industries Association, Safety Services Company, Vallejo Chamber of Commerce
Insurance
Liability Insurance,
Workers' Compensation
Founded
1996
Customer Type
Residential
Warranties & Guarantees
100% Money-Back Guarantee on HVAC Installations
Payment Accepted
american express,
discover,
mastercard,
visa

Certifications & Awards

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Brands

capabilities award
capabilities award
capabilities award
capabilities award

Key Factors

A-1 Guaranteed Heating & Air, Inc. Family Owned
Family Owned
A-1 Guaranteed Heating & Air, Inc. Established in 1996
Established in 1996
A-1 Guaranteed Heating & Air, Inc. Senior Discount
Senior Discount
A-1 Guaranteed Heating & Air, Inc. Free Estimates
Free Estimates
A-1 Guaranteed Heating & Air, Inc. Fixed Pricing
Fixed Pricing
A-1 Guaranteed Heating & Air, Inc. Financing Available
Financing Available
A-1 Guaranteed Heating & Air, Inc. Diamond Certified Expert Contributor
Diamond Certified Expert Contributor
A-1 Guaranteed Heating & Air, Inc. Green business Practices
Green business Practices
A-1 Guaranteed Heating & Air, Inc. Worksmanship Guaranteed
Worksmanship Guaranteed

Select Photos From A-1 Guaranteed Heating & Air, Inc.

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Picture of A-1 Guaranteed Heating & Air, Inc. - A-1 Guaranteed Heating & Air, Inc.
Picture of A-1 Guaranteed Heating & Air, Inc. - A-1 Guaranteed Heating & Air, Inc.

Diamond Certified Expert Contributor Advice & Tips

Richard Hiteshew is president of A-1 Guaranteed Heating & Air, Inc., a Diamond Certified company. He can be reached at (707) 670-3950 or by email.

Richard Hiteshew is president of A-1 Guaranteed Heating & Air, Inc., a Diamond Certified company. He can be reached at (707) 670-3950 or by email.

Richard Hiteshew: Family First

By James Florence, Diamond Certified Resource Reporter

VALLEJO — When asked what motivated him to start his own HVAC business, Richard Hiteshew says he just wanted to have more time with his family. “After several years working as a technician, I was fed up with my job encroaching on my family life. The final straw was when I had to work on my daughter’s fifth birthday, even though I requested the day off weeks in advance. I came home to my wife, Krissy, and told her I was goi...

Read Full Article - Richard Hiteshew: Family First

A-1 Guaranteed Heating & Air, Inc. Website and External Feeds

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FAQs

By A-1 Guaranteed Heating & Air, Inc.

Will you save me money over the long term?

Can you help with allergy control?

Are your estimates free?

What about maintenance? Is that really important?

Will regular maintenance extend the life of a HVAC unit?

A-1 Guaranteed Heating & Air, Inc. Ratings and Survey Responses

diamondcertified logo
A-1 Guaranteed Heating & Air, Inc.
378 SURVEYS
  • star image
  • star image
  • star image
  • star image
  • star image
  • Rating
18 CONSECUTIVE YEARS
SINCE JANUARY 2008
CERT 1249

Diamond Certified Ratings Dashboard

Customer Satisfaction

Customer Loyalty

Helpful Expertise

Company Credentials

  • Liability Insurance
  • Business Practices
  • Current Complaint File
  • Workers Compensation
  • License Verification
  • Legal & Finance

Phone Survey Responsesfrom 378 Verified Customers

Angela G.

They were very professional, very helpful, and they went out of their way to make sure I was getting a good deal. I would use them again and again.

Their professionalism

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 1 of 378

10 Quality
Yes Loyalty
Jennifer D.

It is a local, family-owned business and they support their community.

They are local, they are always very pleasant to work with, and they always ask how their workers did. They have been in Vallejo for a long time.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 2 of 378

10 Quality
Yes Loyalty
Gary E.

Their service was excellent.

They gave us good service and they communicated well with me. They seemed very knowledgeable and they showed me all of their options.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 3 of 378

10 Quality
Yes Loyalty
Preston W.

This company was hired by the homeowner selling this home prior to the closing, because the HVAC work had to be done and was needed for the sale to go through. I am the beneficiary of the good work that was done as the new homeowner. I was very pleased and satisfied, because everything has worked just fine, and there's been no problems with the quality of the work that they did. This is a professional company, and they provided very good service and follow-up. I plan to use them when service work is needed too.

I liked the way the work was done and completed and that there have been no problems since the work was done. I know this is a highly rated company and came highly recommended. They seemed very knowledgeable and well qualified to do the work that the inspector said was needed.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 4 of 378

10 Quality
Yes Loyalty
Daniel S.

The technician was on time. Setting the appointment was easy. The installation of the new heater was quick and simple. There were no problems whatsoever, and I was pleased with the quality of their work and how they performed from start to finish.

I liked how quickly they were able to do the work. Everything has been fine since then.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 5 of 378

10 Quality
Yes Loyalty
Ron R.

I figured out that they are one of the better companies for heating and air service in the general area. I looked at their Yelp reviews, and they were rated amazingly. I trusted them, felt good about their recommendations, and they did a good job.

They were very professional.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 6 of 378

10 Quality
Yes Loyalty
Chris N.

They are nice people and very competent. I have never had a problem with them. I use them regularly, year after year. I would tell others to give A-1 the opportunity, and use them at least once. They'll probably like their quality of service.

They come out twice a year to do maintenance check-ups and make sure everything is in great shape for the coming season. They are very reliable and responsive. When I needed them, they came right away and they stood by their work and what they sell. I've been very pleased with how they do business. They are honest and pleasant every time, very professional.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 7 of 378

10 Quality
Yes Loyalty
Barbera L.

They are courteous, thorough, and professional. They give options on their estimates and make suggestions if you ask for them or their opinion. They are not pushy. There is no pressure at all. They are very helpful and informative.

I like that I can get an appointment fairly quickly and that they are not pushy about anything. I like them so much that I keep calling them. I have used them three times. Their work is very thorough, which is important.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 8 of 378

10 Quality
Yes Loyalty
Daniel Z.

I tell everyone to use this company. They are terrific at what they do, both heating and air. I just got them to install a new heater, and my little dog loves it. That's his new spot, getting the warm air when it comes out.

They are so reliable and courteous. The new heater works fine. I haven't had any problems. I am very satisfied. They did a great job for me.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 9 of 378

10 Quality
Yes Loyalty
Dale P.

They installed my HVAC system, and I am on a monthly pay plan, so they just need to maintain it. I like their approach to their quality of service. They are very knowledgeable, professional, thoughtful, and considerate.

The people who come out know their HVAC trades very well and are very experienced and knowledgeable. They have the skills, and they know what is needed. They do the work efficiently.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 10 of 378

10 Quality
Yes Loyalty
Kevin K.

They had the knowledge and willingness to be able to fix my ancient system. They knew what was needed and could do the job quickly. I was very satisfied and glad I did not have to buy a new heating system.

I liked that they were willing to fix what I had and that it is working fine again. They seem very honest and ethical to have done this for me.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 11 of 378

10 Quality
Yes Loyalty
Ellen N.

They are very courteous, professional, and they respond right away. They were fast to schedule an appointment, and did everything I expected them to do, that I needed done. I was very satisfied.

I liked how they explained everything on the estimate and went over it before starting the work.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 12 of 378

10 Quality
Yes Loyalty
Sally M.

Not to be afraid to call them, they will do a good job for a good price. My heater broke when I came home and it was freezing called and they went overboard to make it work out for me.

That you can depend on them.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 13 of 378

10 Quality
Yes Loyalty
Ken M.

They were able to do a quick cleaning for us, replace our filters, and inspect our system. It was a very affordable and good experience. We have been using them for some years.

The guys were just spot on. They kept us in the loop of what needed to be done, as well as when it was done. They showed us the nasty old filters they replaced.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 14 of 378

10 Quality
Yes Loyalty
Christine J.

I really trust them and have used them before, so I know just who to call when anything goes wrong with my furnace or my air conditioning. They are professional and honest.

I like that they know what they are doing. They are courteous and experienced to do the work quickly.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 15 of 378

10 Quality
Yes Loyalty
Joyce B.

They are extremely honest. When they say they are going to do a tune up, they just do a tune up and they don't try to sell you stuff you don't need. They are very thorough.

I like them because they are local and they are dependable. They are reasonably priced.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 16 of 378

10 Quality
Yes Loyalty
Kathleen L.

The knowledge provided by an expert was very much appreciated, as this is my first time using them. I would use them again based on my experience and comfortability.

They are organized and experts in the field.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 17 of 378

10 Quality
Yes Loyalty
Preston S.

I used them last year, and I was fine with everything that they did. I was satisfied. I haven't used them yet this year, but I would call them if I needed to.

I liked that they did good quality work, fixed the problem, and there's been no trouble since.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 18 of 378

10 Quality
Yes Loyalty
Gordon L.

The guys were very knowledgeable about what type of system to upgrade to. They provided a free filter extension that went with it. It was a great experience.

They were able to make a suggestion of a few different options that would work. They came out and installed it. Everything works great.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 19 of 378

10 Quality
Yes Loyalty
Donna L.

I'd tell a friend to use this company. I'm embarrassed to say, I don't recall the name of the technician who came out to do the work, but he was exceptional.

They're very timely, which is important to me. The technician who came out explained what he was doing and why he was doing it. He also explained what we should do to ensure the system will work more efficiently than it was. He took the time to explain everything in depth to me.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 20 of 378

10 Quality
Yes Loyalty
Margaret O.

I have recommended them to others already. My son who is in sheet metal told me to call them. I have used them several times and have been very satisfied.

I liked that when I called them, they came right away. I did not have to wait a long time for an appointment.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 21 of 378

10 Quality
Yes Loyalty
Linda S.

I would tell others to use them and at least give them a try. They are honest, fair, and they do good quality work, no do-overs are ever needed.

I liked that they gave professional and prompt service. I had confidence in their abilities, knowledge, and skills. They are very reputable.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 22 of 378

10 Quality
Yes Loyalty
Luke H.

They are a good, responsible company. I've had no problem with them or the work that they did. I'd say call them and give them a chance.

I liked that they did the job correctly, and there were no problems.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 23 of 378

10 Quality
Yes Loyalty
Angela P.

They were prompt. They did a good job the second time. The first time it didn't work properly, but they came out again to fix the issue.

Responsiveness

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 24 of 378

10 Quality
Yes Loyalty
Erin M.

They are the best HVAC company that we have worked with in a long time. They are very professional, knowledgeable, and very efficient.

I think this place really looks out for your best interest. They wont charge you for something that you don't need.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 25 of 378

10 Quality
Yes Loyalty
Alex

They were knowledgeable, careful, and responsive. I had kind of a tricky situation and they got the job done with no problems at all.

They knew what they were doing and I had confidence in the work they were doing.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 26 of 378

10 Quality
Yes Loyalty
Jenny F.

They were professional, responsive, good at what they did for us, and clean too. They didn't track dirt in or damage anything.

I liked the good customer service that I received. I was satisfied with the whole interaction I had with this company.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 27 of 378

10 Quality
Yes Loyalty
Jose B.

Their customer service is excellent. When I had an issue, they didn't hesitate to come out and look at it and fix the problem.

The fast response

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 28 of 378

10 Quality
Yes Loyalty
Joan C.

They were very good. They met my expectations. They are competent, professional, and experienced. They do their jobs well.

I was happy that they got to my home as scheduled. They were right on time. To me, that indicates how the service call is going to be. I was glad they kept to the schedule, did the work, and did not leave any mess afterwards.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 29 of 378

10 Quality
Yes Loyalty
Robert N.

The guy who came out was nice. He got the work done quickly and showed me the stuff that was done. Scheduling was easy.

They were able to get everything done that I needed.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 30 of 378

10 Quality
Yes Loyalty
Keith R.

They are very reliable, and the quality of their work is great. There were no problems. We were very satisfied.

I liked that the installation of the furnace was done quickly, efficiently, and their quality of work was excellent. They did not leave any mess behind.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 31 of 378

10 Quality
Yes Loyalty
John K.

They are an honest company and they do all the work for me. Everything is always guaranteed and of good quality.

They are reputable.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 32 of 378

10 Quality
Yes Loyalty
Karen J.

They keep their schedule and they are very community oriented and they support a lot of things in the community.

They are dependable.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 33 of 378

10 Quality
Yes Loyalty
Larry S.

They have an amazing out look on the problems they dealt with. I would recommend people to give them a call.

My favorite thing was that they were able to solve an issue without having to replace the whole unit like other recommended.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 34 of 378

10 Quality
Yes Loyalty
Leticia K.

I would highly recommend their services. They did a good job, and I'm happy with the way things turned out.

They had a reasonable price, they were thorough, accommodating, and honest.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 35 of 378

10 Quality
Yes Loyalty
Sherry B.

They do a good job and they don't overprice anything. They don't try to sell you services you don't need.

They show up in the time frame they say they will and they have reasonable prices. The people in the office are really friendly and helpful. The people they send out know what they are doing.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 36 of 378

10 Quality
Yes Loyalty
David L.

They do great work. We had to have our vents sealed and some tubing replaced. It was quick and painless.

They were quick.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 37 of 378

10 Quality
Yes Loyalty
Daniel T.

They are quick and great to work with. This is not my first time. I will be using them again if needed.

They are great. I think they are experts and thorough.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 38 of 378

10 Quality
Yes Loyalty
John G.

They are straightforward. They match your heating and air conditioning needs with what is best for you.

No hard foul

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 39 of 378

10 Quality
Yes Loyalty
Edward I.

A very knowledgeable fellow, doesn't mess around, has a good crew, and the owner stays on the job.

The owner stays on job all day until it's done.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 40 of 378

10 Quality
Yes Loyalty
Richard B.

It was a very good and thorough inspection. They gave good recommendations for future services.

I was able to schedule an appointment very quickly.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 41 of 378

10 Quality
Yes Loyalty
Caren P.

A1 was great for us. I have nothing bad to say. They were professional and got the work done.

They were professional about everything.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 42 of 378

10 Quality
Yes Loyalty
Marion S.

I would say how professional they were, what a great job they did, and my system works great.

They were very professional and they did an excellent job. They left no mess behind and they were really neat and clean.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 43 of 378

10 Quality
Yes Loyalty
Jennifer V.

They are great. They have a great sales force. I would say I would use them again if needed.

They are very nice and professional.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 44 of 378

10 Quality
Yes Loyalty
Ana C.

Great customer service, the people who pick up the phones are so nice and very professional.

They are reliable.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 45 of 378

10 Quality
Yes Loyalty
Ashley G.

You get what you pay for. They were honest, helpful, and they answered my questions fully.

They were just super friendly.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 46 of 378

10 Quality
Yes Loyalty
Diane R.

They are very helpful. Whenever they come out for service, they are always professional.

They are very professional. I always feel comfortable with them. I have recommend them to other people in conversation.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 47 of 378

10 Quality
Yes Loyalty
Ron M.

They do good quality work, and they offer excellent customer service. I was satisfied.

The quality of their employees is very good. Their employees are courteous, they work cleanly, and they knowledgeable and experienced. This is a good company with solid, quality employees who know what they are doing.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 48 of 378

10 Quality
Yes Loyalty
Heather F.

I thought they did a good job cleaning our ducts and replacing all of our filters.

They were very efficient.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 49 of 378

10 Quality
Yes Loyalty
Carolynne E.

Very trustworthy and I am extremely happy with their product and the job they did.

I have a nice unit and I am just happy with the product.

Verified Customer of A-1 Guaranteed Heating & Air, Inc., 50 of 378

10 Quality
Yes Loyalty