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CalRATERS, Inc.

Home Energy Auditor
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Alameda  Contra Costa  Marin  Napa  San Francisco  San Mateo  Santa Clara  Solano  Sonoma Counties
Diamond Certified Company Report
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CalRATERS, Inc.
44 SURVEYS
  • star image
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  • Rating
4 CONSECUTIVE YEARS
SINCE DECEMBER 2021
CERT 2653

Diamond Certified Ratings Dashboard

44

Verified Customers

Surveyed

Customer Loyalty

Customer Satisfaction

Helpful Expertise

READ ALL 44 SURVEY RESPONSES

Company Credentials

  • Liability Insurance
  • Business Practices
  • Current Complaint File
  • Workers Compensation

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  • Researched Articles & Profile
  • Capabilities
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Diamond Certified Company Report SUMMARY UPDATE February 2025

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CalRATERS, Inc.

Rated Highest in Quality and Helpful Expertise for 4 Consecutive Years.

Quick Summary

  • Diamond Certified since 2021
  • Helps clients navigate issues with high energy bills, inefficient heating and air conditioning equipment, poor insulation, leaky ductwork, and more
  • Family-owned and operated since 2015
  • Offers free Home Energy Scores

Top News Updated

NEW PRODUCTS & SERVICES

CalRATERS has started performing combustion safety tests on all types of gas appliances.

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TRENDING PROJECTS

CalRATERS recently worked on multiple new construction projects in Oakland, including single-family and multifamily housing units.

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Top Survey Responses

From a recent Diamond Certified Survey Response: “[They’re] very easygoing and professional, and they’re willing to take some time to explain what’s going on.”

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From a recent Diamond Certified Survey Response: “They were really great. They showed up on time and did what they said they would do at a fair price.”

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Special Events & Promotions

CalRATERS is currently offering $50 off on energy audits.

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CalRATERS, Inc.
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Diamond Certified Researched Articles on CalRATERS, Inc.

researched article

One of CalRATERS’ service vehicles on a recent jobsite

CalRATERS, Inc. offers a variety of services that are designed to meet the energy needs of residential clients in the entire Bay Area. In addition to providing home energy audits and testing, the family-owned and operated company helps navigate issues with high energy bills, inefficient heating and air conditioning equipment, poor insulation, hot and cold spots, leaky ductwork, leaks within the envelope of a home, drafty areas, and much more.

CalRATERS works with state programs to help homeowners make educated decisions about energy upgrades to their homes. “Many homeowners have energy-related concerns, but they don’t know the first place to start when it comes to finding a solution,” says co-owner Marty Kerr. “We help them by getting the work done with the best contractors and even applying for any rebates that may be available.”

CalRATERS takes a whole-home approach to every project, which allows it to provide each homeowner with an in-depth analysis of their home’s energy usage. “An energy audit should be the first step a homeowner takes before making any energy upgrades,” says Marty. “It will give them the information they need to know which upgrades to prioritize as well as which upgrades will give them the biggest return on investment.”

“We believe in a more energy-efficient future and strive to make a difference one home at a time. Our goals are to educate our customers about energy loss and provide them with solutions that make their homes more comfortable and energy efficient. We will continue to make an impact on each customer’s home energy use as well as the future of energy consumption.”

Learn what an energy audit can mean for you and your home.
According to Energy.gov, energy efficiency is “one of the easiest and most cost-effective ways to combat climate change, clean the air we breathe, improve the competitiveness of our businesses, and reduce energy costs for consumers.” But while you might see and hear it almost everywhere these days, “energy efficiency” is more than just a buzz phrase. In fact, practical implementation of energy-efficient practices and materials can save you money, keep you more comfortable in your home and/or office, and keep contractors accountable.

“Some people think that energy testing is only useful for permits or because it’s required, but there are absolutely benefits for homeowners,” says Nikole Jonsson, co-owner of CalRATERS, Inc. in San Ramon. “By having energy testing done on your home, you’re making sure your HVAC system and ductwork are as efficient as they can possibly be. You get the benefit of knowing that your contractor has done a quality job, so it validates that you got what you paid for.”

Along with holding contractors responsible for installing equipment correctly and making sure HVAC systems are working efficiently, energy auditors provide additional testing and advice. “The best place to start is figuring out where your energy is being wasted,” offers Ms. Jonsson. “Professional energy auditors perform tests that provide specific information about how home systems are functioning. For example, an air filtration blower test will expose any air leakage within the envelope of a home. Replacing leaky windows, doors, electrical fixtures or lights is a great way to improve home energy efficiency.”

Ms. Jonsson says making those types of minor upgrades and repairs can be enough to keep your rooms comfortable, reduce your heating and cooling bills, limit unnecessary wear and tear on your HVAC equipment, and help you live Greener without a lot of hassle.

Maintaining customer satisfaction is a crucial aspect of any business, but it’s even more important for home energy auditors that have earned the prestigious Diamond Certified award. For CalRATERS, Inc., the key to keeping clients happy is simple: work closely with them to make sure all of their energy efficiency requirements are being met. “A lot of people don’t understand the nuances of this industry, so by working one-on-one with our clients, we’re able to relieve their stress and simplify the process,” explains co-owner Nikole Jonsson. “Once we determine where their homes are losing energy, we’re able to provide them with solutions that help them reduce their energy bills and make their homes more energy efficient."

CalRATERS has been offering services that are designed to meet the energy needs of residential clients in Contra Costa, Alameda, San Mateo, Santa Clara, Marin, Sonoma, Napa and Solano Counties since 2015. The family-owned and operated company is best known for performing home energy audits and Title 24 HERS inspections, but it’s also qualified to help homeowners navigate the BayREN rebate process, provide energy compliance certificates for new construction projects and more.

Unlike less experienced companies that are only qualified to handle one part of the energy auditing process, CalRATERS is a one-stop shop for all things related to energy efficiency. “We can do full home energy audits and provide detailed reports, but we can also help our clients coordinate with top contractors and stay involved throughout the course of their energy upgrade projects,” says Ms. Jonsson. “Once those upgrades are completed, we’ll come back to do the required final testing and submit all of the rebates to make sure they’re paid out in full.”

Ultimately, Ms. Jonsson says CalRATERS’ personalized approach to customer service has been its most important attribute. “We don’t just come in and test our clients’ systems—we provide them with solutions that fulfill their individual needs. We start building relationships with our clients from their very first phone call, and when we go out in the field, we make sure we’re taking care of their homes by wearing shoe booties and taking other protective measures.”

Diamond Certified Researched Capabilities on CalRATERS, Inc.

Service Area

Bay Area
Serving the Bay Area

Main Services

Home Energy Auditor
  • Blower Door Testing
  • Electric Meter Testing
  • Energy Assessments
  • Energy Audits
  • Energy Solutions
  • Hers Inspections
  • Home Inspections
  • Home Solar Batteries

Additional Services

Title 24 HERS Inspections
Home Energy Audits
BayREN Rebate Program Processing & Submittals
Energy Compliance Certificates
Duct Leakage Testing
Envelope Leakage Testing
Infrared Imaging
Insulation Inspections

Company Info

Hours
Mon
07:30 am - 05:30 pm
Tue
07:30 am - 05:30 pm
Wed
07:30 am - 05:30 pm
Thu
07:30 am - 05:30 pm
Fri
07:30 am - 05:30 pm
Sat
Closed
Sun
Closed
Closed
Mon – Fri: 7:30am – 5:30pm
Website
Contact
CalRATERS, Inc.

Capabilities Table

Company Name
CalRATERS, Inc.
Phone Number
DCID Number
DCID9254664663
Managers
Nikole Jonsson and Marty Kerr, Owners
Years in Industry
20+ (Combined)
# of Employees
8
Memberships
Better Business Bureau
Insurance
Liability Insurance,
Workers’ Compensation
Founded
2015
Customer Type
Residential, Commercial
Payment Accepted
american express,
discover,
mastercard,
visa

Certifications & Awards

diamond certified logo

Key Factors

CalRATERS, Inc. Family Owned
Family Owned
CalRATERS, Inc. Established in 2015
Established in 2015
CalRATERS, Inc. Special Discount
Special Discount
CalRATERS, Inc. Live Phone Call Answers
Live Phone Call Answers
CalRATERS, Inc. Diamond Certified Expert Contributor
Diamond Certified Expert Contributor
CalRATERS, Inc. Green business Practices
Green business Practices
CalRATERS, Inc. Worksmanship Guaranteed
Worksmanship Guaranteed

Select Photos From CalRATERS, Inc.

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CalRATERS, Inc.
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Picture of CalRATERS, Inc. - CalRATERS, Inc.
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Diamond Certified Expert Contributor Advice & Tips

Marty Kerr is owner of CalRATERS, Inc., a Diamond Certified company. He can be reached at (925) 526-5908 or by email.

Marty Kerr is owner of CalRATERS, Inc., a Diamond Certified company. He can be reached at (925) 526-5908 or by email.

Marty Kerr: Doing His Part

By Matt Solis, Editor

Marty Kerr feels like he has found a perfect vocational match in home energy auditing, but his introduction to the field was actually the result of someone else’s professional trajectory. “My wife, Nikole, is the one who originally told me about it,” he remembers. “She was working in the HVAC industry at the time and she told me about a new program called HERS [Home Energy Rating System] that her company was going to start implementing. When I looked into it further, I li...

Read Full Article - Marty Kerr: Doing His Part

CalRATERS, Inc. Website and External Feeds

FAQs

By CalRATERS, Inc.

How soon can you start my project?

What is HERS testing?

Why are my energy bills so high?

How can I make my home more energy efficient?

What can I do if I don’t want a full energy audit?

Can I trust your service providers?

CalRATERS, Inc. Ratings and Survey Responses

diamondcertified logo
CalRATERS, Inc.
44 SURVEYS
  • star image
  • star image
  • star image
  • star image
  • star image
  • Rating
4 CONSECUTIVE YEARS
SINCE DECEMBER 2021
CERT 2653

Diamond Certified Ratings Dashboard

Customer Satisfaction

Customer Loyalty

Helpful Expertise

Company Credentials

  • Liability Insurance
  • Business Practices
  • Current Complaint File
  • Workers Compensation

Phone Survey Responsesfrom 44 Verified Customers

Rachel A.

I always give them my highest approval that they will be happy with them and they won't have any problems using them. They are highly recommended.

Verified Customer of CalRATERS, Inc., 1 of 44

10 Quality
Yes Loyalty
Megan S.

The women that owns the company was super responsive and very accommodating. They went above and beyond.

Verified Customer of CalRATERS, Inc., 2 of 44

10 Quality
Yes Loyalty
Edwin A.

Very easygoing and professional, they are willing to take some time out to explain what is going on.

Verified Customer of CalRATERS, Inc., 3 of 44

10 Quality
Yes Loyalty
Brett B.

We have an old leaky home. They did a good job with explaining to us on how to deal with things.

Verified Customer of CalRATERS, Inc., 4 of 44

10 Quality
Yes Loyalty
Chris B.

They are very thorough, very efficient and very friendly. They are great overall.

Verified Customer of CalRATERS, Inc., 5 of 44

10 Quality
Yes Loyalty
Emily D.

They have wonderful customer service and are very professional people.

Verified Customer of CalRATERS, Inc., 6 of 44

10 Quality
Yes Loyalty
Lori B.

They were attentive to detail and made sure the job was done right.

Verified Customer of CalRATERS, Inc., 7 of 44

10 Quality
Yes Loyalty
Nick D.

The office staff is really fast and they make us look good.

Verified Customer of CalRATERS, Inc., 8 of 44

10 Quality
Yes Loyalty
Alejandro S.

Very professional, quick, efficient, and fun to work with

Verified Customer of CalRATERS, Inc., 9 of 44

10 Quality
Yes Loyalty
Edmond W.

The home energy audit was comprehensive and thorough.

Verified Customer of CalRATERS, Inc., 10 of 44

10 Quality
Yes Loyalty
Chad L.

They are efficient and affordable, extremely helpful.

Verified Customer of CalRATERS, Inc., 11 of 44

10 Quality
Yes Loyalty
Jim D.

They were very much on top of it and accommodating.

Verified Customer of CalRATERS, Inc., 12 of 44

10 Quality
Yes Loyalty
Daniel K.

Very qualified, punctual, professional and upfront

Verified Customer of CalRATERS, Inc., 13 of 44

10 Quality
Yes Loyalty
William A.

I can refer them to any friend who needs them.

Verified Customer of CalRATERS, Inc., 14 of 44

10 Quality
Yes Loyalty
Joseph R.

They are easy to work with and very helpful.

Verified Customer of CalRATERS, Inc., 15 of 44

10 Quality
Yes Loyalty
Christian G.

It was overall a straightforward process.

Verified Customer of CalRATERS, Inc., 16 of 44

10 Quality
Yes Loyalty
Jesse J.

Very professional and responsiveness

Verified Customer of CalRATERS, Inc., 17 of 44

10 Quality
Yes Loyalty
Elaine A.

Very professional and on time

Verified Customer of CalRATERS, Inc., 18 of 44

10 Quality
Yes Loyalty
Janelle

I would recommend using them.

Verified Customer of CalRATERS, Inc., 19 of 44

10 Quality
Yes Loyalty
Cody C.

They are an awesome company.

Verified Customer of CalRATERS, Inc., 20 of 44

10 Quality
Yes Loyalty
Travis O.

Professional and friendly

Verified Customer of CalRATERS, Inc., 21 of 44

10 Quality
Yes Loyalty
Cesar V.

I would recommend them.

Verified Customer of CalRATERS, Inc., 22 of 44

10 Quality
Yes Loyalty
Simon A.

Easy

Verified Customer of CalRATERS, Inc., 23 of 44

10 Quality
Yes Loyalty
David H.

They were really great. They showed up on time and they did what they said they would do at a fair price.

Verified Customer of CalRATERS, Inc., 24 of 44

9 Quality
Yes Loyalty
Ron B.

They were really good, thorough with their reports and invited me to a call back service.

Verified Customer of CalRATERS, Inc., 25 of 44

9 Quality
Yes Loyalty
Riley B.

In a long run, it saves you money, because you found out problems that would save money.

Verified Customer of CalRATERS, Inc., 26 of 44

9 Quality
Yes Loyalty
Danny S.

I think they are very quick and easy to work with.

Verified Customer of CalRATERS, Inc., 27 of 44

9 Quality
Yes Loyalty
Lee S.

I actually referred them to someone.

Verified Customer of CalRATERS, Inc., 28 of 44

9 Quality
Yes Loyalty
Henry N.

They got the job done.

Verified Customer of CalRATERS, Inc., 29 of 44

9 Quality
Yes Loyalty
Kishore K.

Quick audit service

Verified Customer of CalRATERS, Inc., 30 of 44

9 Quality
Yes Loyalty
Robert H.

They largely did a good job in giving me my home energy usage, but weren't able to help with blower door testing.

Verified Customer of CalRATERS, Inc., 31 of 44

8 Quality
No Loyalty
Elijah P.

The service was good it was just the schedule that was a little hassle.

Verified Customer of CalRATERS, Inc., 32 of 44

8 Quality
Yes Loyalty
Jaye R.

They did a fine job with the actual work, but I didn't get a follow-up.

Verified Customer of CalRATERS, Inc., 33 of 44

8 Quality
No Loyalty
Tricia S.

They definitely address places were you can decrease energy cost.

Verified Customer of CalRATERS, Inc., 34 of 44

8 Quality
Yes Loyalty
John W.

The individual I hired was the only one that responded.

Verified Customer of CalRATERS, Inc., 35 of 44

8 Quality
Yes Loyalty
Andrew F.

They were very good to work with and very commutative.

Verified Customer of CalRATERS, Inc., 36 of 44

8 Quality
Yes Loyalty
Simon A.

They were easy to work with and very informative.

Verified Customer of CalRATERS, Inc., 37 of 44

8 Quality
Yes Loyalty
John P.

The technicians didn't explain things properly.

Verified Customer of CalRATERS, Inc., 38 of 44

8 Quality
Yes Loyalty
Ethan C.

The energy recommendations don't make any sense.

Verified Customer of CalRATERS, Inc., 39 of 44

7 Quality
No Loyalty
Shannon K.

I don't have anything.

Verified Customer of CalRATERS, Inc., 40 of 44

7 Quality
Yes Loyalty
James H.

Great service

Verified Customer of CalRATERS, Inc., 41 of 44

7 Quality
Yes Loyalty
Alex T.

Knowledgeable but not as responsive as I would have wanted them to be

Verified Customer of CalRATERS, Inc., 42 of 44

6 Quality
Yes Loyalty
Jalene P.

A little complicated

Verified Customer of CalRATERS, Inc., 43 of 44

6 Quality
No Loyalty
Evelyn C.

They didn't know what they were doing and the information they gave me had some discrepancies.

Verified Customer of CalRATERS, Inc., 44 of 44

3 Quality
No Loyalty
READ ALL 44 SURVEY RESPONSES