logo

Chimney Clean Company

Chimney Sweep
|
Alameda  San Mateo  Santa Clara Counties
Diamond Certified Company Report
diamondcertified logo
Chimney Clean Company
34 SURVEYS
  • star image
  • star image
  • star image
  • star image
  • star image
  • Rating
1 CONSECUTIVE YEAR
SINCE MARCH 2025
CERT 2852

Diamond Certified Ratings Dashboard

34

Verified Customers

Surveyed

Customer Loyalty

Customer Satisfaction

Helpful Expertise

READ ALL 34 SURVEY RESPONSES

Company Credentials

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

Company Report Menu

  • Survey Responses
  • Researched Articles & Profile
  • Capabilities
  • Photos
  • Website & External Feeds
logo
Chimney Clean Company
Diamond Certified Company Report Menu
  • Ratings
  • Surveys
  • Articles
  • Capabilities
  • Photos

Get a Quote or Call with Questions

Diamond Certified Researched Articles on Chimney Clean Company

researched article

Chimney Clean Company cleaned this chimney.

Chimney Clean Company cleans, inspects, and repairs all types of chimneys and fireplaces for homeowners in Santa Clara, Alameda, and San Mateo Counties. In addition to keeping its clients’ chimneys and fireplaces functioning smoothly and safely, the family-owned and operated company offers supplementary services like dryer duct cleaning; chimney rebuilding and relining; gas, wood and electric insert installation; and more.

Office Manager Jennifer Maas says Chimney Clean Company’s success is built on trust and customer care. “We don’t look at our clients as transactions—we see them as neighbors who need our help to maintain safe, comfortable homes. Whether it’s ensuring their chimney is in good working order or making sure their dryer ducts aren’t a fire hazard, we treat each customer with the same respect and honesty we would want for ourselves.”

Chimney Clean Company maintains a high standard of service through rigorous employee training and ongoing quality control. “Our technicians go through intensive in-house training to ensure they’re delivering first-rate service,” affirms Ms. Maas. “We even have a dedicated quality control executive who inspects jobs, handles return visits and retrains technicians as needed. Our customers know they’re getting expert care from a team they can trust.”

“Our clients are very important to us, so we take pride in providing them with services that contribute to their well-being. Ultimately, we want to develop long-term relationships with them so we can keep their chimneys, fireplaces, and dryer ducts safe and clean for years to come.”

If you have a wood burning fireplace, take simple steps to minimize your emissions.
Despite cleaner technologies, many wood fires are still built in traditional open fireplaces or uncertified wood fireplace inserts manufactured and installed before 1992. Burning firewood in these older heaters can produce significantly more smoke and pollute the air both outside and inside the home. To make sure you’re burning wood as responsibly as possible, consider the following tips:

Low-emission hearth products
There are many types of low-emission, wood-burning hearth products available for new construction and existing homes. The key is determining the type of product, as well as the right type of wood fuel, to meet your needs.


  • All modern wood stoves and wood fireplace inserts manufactured and sold in the United States are required to meet strict emission standards and be certified by the Environmental Protection Agency. To meet this standard, all stoves must prove emissions of less than 7.5 grams of particulate per hour. All EPA Certified wood stoves and fireplace inserts have a permanent label on the back that bears the EPA’s name.
  • Pellet stoves and pellet fireplace inserts burn wood pellets made from recycled sawdust and are the lowest emission wood burners available. Because of their very low emissions, they’re exempt from EPA certification.
  • Masonry heaters are high performance, clean burning and substantially sized wood burners that produce a tremendous amount of heat. Similar to pellet appliances, they’re exempt from EPA certification.


Replace old wood stoves or fireplace inserts. After changing out an old wood stove or fireplace insert, it’s important to take the product out of circulation so it can never be used again. The most environmentally-friendly step is to have these hearth products recycled by a local steel recycler.

Use seasoned firewood. Seasoned firewood has a moisture content of about 20 percent and should be stacked and dried for six months before burning. The type of seasoned firewood also impacts the fire—hardwoods such as oak, hickory and elm tend to produce a longer-lasting burn.

Use manufactured fire logs. Sawdust-manufactured fire logs (no wax) are ideal for occasional use in traditional fireplaces. In addition to cutting emissions, they can be used to reduce wood smoke in both fireplaces and wood stoves.

Customer satisfaction is a key focus of any successful business, but it’s even more important for chimney sweep companies that have earned Diamond Certified. For Chimney Clean Company, the best way to keep clients happy is to treat them like partners in their own home safety. “We see our customers as neighbors, so we work hard to make sure their homes are safe and warm,” says Office Manager Jennifer Maas. “They know they’re getting expert care from people they can trust.”

Chimney Clean Company has been cleaning, inspecting, and repairing chimneys and fireplaces for homeowners in Santa Clara, Alameda, and San Mateo Counties since 1990. The family-owned and operated company is best known for keeping chimneys and fireplaces functioning smoothly and safely, but it’s also qualified to clean dryer ducts; rebuild and reline chimneys; install gas, wood and electric inserts; and more.

Unlike less experienced chimney sweep companies that only work on certain types of chimneys, Chimney Clean Company has the in-house capabilities to handle almost every type of inspection, cleaning and repair. “Not every company can work with wood inserts, pellet stoves and freestanding stoves, but we’ve been doing it all for over 30 years,” says Ms. Maas. “It’s particularly difficult to find a company that can do masonry repairs, so our clients are often pleasantly surprised when they find out we can take care of that as well.”

Another distinguishing feature of Chimney Clean Company is its staff of highly trained chimney professionals, all of whom are required to pass background and drug tests before working in the field. “Our technicians are trustworthy and they pay attention to detail, which is the key to providing high-quality work,” says Ms. Maas. “Even if they run into an issue that they haven’t seen before, we’ll send a lead technician to make sure the job gets done correctly.”

Diamond Certified Researched Capabilities on Chimney Clean Company

Service Area

Santa Clara County
Alameda County
San Mateo County
Serving Santa Clara, Alameda and San Mateo Counties

Main Services

Chimney Sweep
  • Chimney Cap Replacement
  • Chimney Cleaning
  • Chimney Inspection
  • Chimney Repair
  • Dryer Vent Cleaning
  • Fireplace Cleaning
  • Fireplace Inspection
  • Fireplace Maintenance

Additional Services

Chimney Cleaning, Inspection & Repair
Chimney Rebuilds
Gas, Wood & Electric Insert Installations
Gas Fireplace Cleaning & Inspection
Dryer Duct Cleaning & Installations/Rerouting

Company Info

Hours
Mon
08:30 am - 05:00 pm
Tue
08:30 am - 05:00 pm
Wed
08:30 am - 05:00 pm
Thu
08:30 am - 05:00 pm
Fri
08:30 am - 05:00 pm
Sat
08:00 am - 04:00 pm
Sun
Closed
Closed
Mon – Fri: 8:30am – 5pm
Sat: 8am – 4pm (Service Appointments Only)
Website
Contact
Chimney Clean Company

Capabilities Table

Company Name
Chimney Clean Company
Phone Number
DCID Number
DCID4082651010
Managers
Dennis Justus and Dan Maas, Owners
Years in Industry
40+ (Combined)
# of Employees
7
License
678096
Memberships
Golden State Chimney Sweep Guild, Santa Clara County Association of REALTORS
Insurance
Liability Insurance,
Workers' Compensation
Founded
1990
Customer Type
Residential
Warranties & Guarantees
1-Year Warranty on Labor, Manufacturers’ Warranties on Parts

Certifications & Awards

diamond certified logo

Select Photos From Chimney Clean Company

1 of 6Picture of Chimney Clean Company - Chimney Clean Company
Chimney Clean Company
Picture of Chimney Clean Company - Chimney Clean Company
Picture of Chimney Clean Company - Chimney Clean Company
Picture of Chimney Clean Company - Chimney Clean Company
Picture of Chimney Clean Company - Chimney Clean Company
Picture of Chimney Clean Company - Chimney Clean Company
Picture of Chimney Clean Company - Chimney Clean Company

Chimney Clean Company Website and External Feeds

FAQs

By Chimney Clean Company

How often should I have my chimney cleaned?

What’s your process for cleaning and inspecting chimneys?

Do I need to be home while you’re working?

How long will it take to clean my chimney?

Do you service gas fireplaces?

Chimney Clean Company Ratings and Survey Responses

diamondcertified logo
Chimney Clean Company
34 SURVEYS
  • star image
  • star image
  • star image
  • star image
  • star image
  • Rating
1 CONSECUTIVE YEARS
SINCE MARCH 2025
CERT 2852

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 34 Verified Customers

Nancy R.

They came prepared and they were knowledgeable. They were very good at laying down tarps and making sure to keep things clean.

We've been using them since we got this house and they've always been dependable and knowledgeable.

Verified Customer of Chimney Clean Company, 1 of 34

10 Quality
Yes Loyalty
Mary V.

They're great. They went above and beyond. They did what we asked them to do and detected an additional problem as well.

They're honest and hardworking. They pointed out an additional issue even though they didn't have to.

Verified Customer of Chimney Clean Company, 2 of 34

10 Quality
Yes Loyalty
Kerstin S.

I think they're a good value for their services, and if you need any chimney work done, they would do a really good job.

They were very prompt, called when they were on their way and were exactly on time. He explained what he was doing and then gave a report and information on the upkeep at the end.

Verified Customer of Chimney Clean Company, 3 of 34

10 Quality
Yes Loyalty
C.M.

Dan was trustworthy. I had to leave the house while he was working and I had no qualms doing so. He was so friendly.

They're trustworthy.

Verified Customer of Chimney Clean Company, 4 of 34

10 Quality
Yes Loyalty
Susan C.

They showed up on time and knew what they were doing. Everything was properly covered and cleaned up.

They showed up on time and knew what they were doing. Whenever I had any questions, they were able to answer them. I was very satisfied.

Verified Customer of Chimney Clean Company, 5 of 34

10 Quality
Yes Loyalty
Siobhan C.

They were so easy to work with. They were clean and they were in and out. They just did a great job.

I liked everything to be honest. They were very considerate and clean.

Verified Customer of Chimney Clean Company, 6 of 34

10 Quality
Yes Loyalty
Marilyn L.

They were prompt, knowledgeable and the young man was patient when teaching me how to use it.

The young man was very knowledgeable and helpful.

Verified Customer of Chimney Clean Company, 7 of 34

10 Quality
Yes Loyalty
Diane M.

They know what they're doing. They're experts, so I felt confident with their work.

They were actually responsive, came on time and did the job in a timely manner. It was everything that I look for in a company.

Verified Customer of Chimney Clean Company, 8 of 34

10 Quality
Yes Loyalty
Carolyn H.

I would highly recommend them for any repair work on your chimney.

The guy that came out was nice, friendly and did excellent work on the job he was doing.

Verified Customer of Chimney Clean Company, 9 of 34

10 Quality
Yes Loyalty
Earl S.

They're dependable, reliable and have good customer service.

They found some issues and they were able to fix them that day. They were very prompt.

Verified Customer of Chimney Clean Company, 10 of 34

10 Quality
Yes Loyalty
Marcela V.

They are honest, reliable and just really wonderful people.

They have great communication.

Verified Customer of Chimney Clean Company, 11 of 34

10 Quality
Yes Loyalty
Pat H.

They should hire them. They were able to fix our chimney.

Their professionalism and that they were kind and efficient.

Verified Customer of Chimney Clean Company, 12 of 34

10 Quality
Yes Loyalty
Peggy M.

The price is going to go up every single year.

They're usually punctual and on time. If they're going to be late, they tell me.

Verified Customer of Chimney Clean Company, 13 of 34

10 Quality
Yes Loyalty
Beidi A.

They were prompt and took care of everything.

They knew what they were doing and it was a good price.

Verified Customer of Chimney Clean Company, 14 of 34

10 Quality
Yes Loyalty
Steve S.

I think they do a great job and clean well.

I called them, they came, showed up on time and didn't cancel.

Verified Customer of Chimney Clean Company, 15 of 34

10 Quality
Yes Loyalty
Abigail P.

They're reliable and always do good work.

That they're reliable and always do good work

Verified Customer of Chimney Clean Company, 16 of 34

10 Quality
Yes Loyalty
Joanne B.

They were quick, professional and timely.

It was last minute around Christmas time and they were able to fit me in.

Verified Customer of Chimney Clean Company, 17 of 34

10 Quality
Yes Loyalty
Edith R.

They came out when they said they would.

They're responsive, friendly and on time.

Verified Customer of Chimney Clean Company, 18 of 34

10 Quality
Yes Loyalty
Steve D.

Great customer service and great quality

It's family owned and they're very easy to work with. The customer service is great.

Verified Customer of Chimney Clean Company, 19 of 34

10 Quality
Yes Loyalty
Jeanine B.

They're easy to reach and schedule with.

They were very responsive, prompt and able to do the work right away.

Verified Customer of Chimney Clean Company, 20 of 34

10 Quality
Yes Loyalty
Bob R.

They should use Chimney Clean Company.

They were efficient, careful and on time.

Verified Customer of Chimney Clean Company, 21 of 34

10 Quality
Yes Loyalty
Lydia P.

They're reliable and knowledgeable.

That they do a good job

Verified Customer of Chimney Clean Company, 22 of 34

10 Quality
Yes Loyalty
Julie T.

It's a good and quick service.

They were clean and on time.

Verified Customer of Chimney Clean Company, 23 of 34

10 Quality
Yes Loyalty
Randy C.

It was easy and very clean.

I liked the new comprehensive check of the chimney.

Verified Customer of Chimney Clean Company, 24 of 34

10 Quality
Yes Loyalty
Todd T.

They did a great job.

The service

Verified Customer of Chimney Clean Company, 25 of 34

10 Quality
Yes Loyalty
Stephen E.

They were no issues.

They were efficient, cleaned up after themselves and met my expectations.

Verified Customer of Chimney Clean Company, 26 of 34

10 Quality
Yes Loyalty
Michelle Z.

They did a good job.

I'm not sure.

Verified Customer of Chimney Clean Company, 27 of 34

10 Quality
Yes Loyalty
Jessica F.

I'd recommend them.

The ease of scheduling

Verified Customer of Chimney Clean Company, 28 of 34

10 Quality
Yes Loyalty
Ed M.

No comment.

I'm not sure.

Verified Customer of Chimney Clean Company, 29 of 34

10 Quality
Yes Loyalty
Leslie C.

They do a very good job at a fair price.

Their office staff, they're really helpful.

Verified Customer of Chimney Clean Company, 30 of 34

9 Quality
Yes Loyalty
Ashley M.

No comment.

They're responsive.

Verified Customer of Chimney Clean Company, 31 of 34

9 Quality
Yes Loyalty
Miles B.

They are quick to answer your inquiries and they keep following up with you. Overall, they were great. I did have an issue though, but customer service wise, they were perfect

They're quick and they try to get you in if it's an important job.

Verified Customer of Chimney Clean Company, 32 of 34

8 Quality
Yes Loyalty
Javier R.

It was an adequate experience. He did what he said he would do. They're honest.

The prompt service and fair pricing

Verified Customer of Chimney Clean Company, 33 of 34

8 Quality
Yes Loyalty
E.H.

Get referrals from neighbors.

My issue was complicated and my chimney guy was willing to communicate with my roofer.

Verified Customer of Chimney Clean Company, 34 of 34

8 Quality
Yes Loyalty
READ ALL 34 SURVEY RESPONSES