Top Rated Home Energy Auditors Serving San Mateo County, CA

Name: CalRATERS, Inc.
Address: US
Rating: 4.6

If you really care about choosing a quality home energy auditor, we’re here for you. Here’s your access to the best home energy auditors serving San Mateo County including 94080, 94015, 94014, 94303 and 94403. These energy experts provide blower door testing and appliance energy consumptions, and they also work on energy conservation education, weatherization suggestions and HERS inspections. For 22 years we’ve conducted the most accurate ratings and deepest research of local companies, so you’ll be confident in choosing.

Last Updated Jun 03, 2026
2,196 people sourced companies in Home Energy Auditor
278 Verified Home Energy Auditor Customers Surveyed

278

2,196

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CalRATERS, Inc.

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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 ...

Main Services

Home Energy Auditor

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

Coverage Areas

Bay Area

Family Owned

Established in 2015

Special Discount

Live Phone Call Answers

Diamond Certified Video Profile

Home Energy Auditor - CalRATERS, Inc. - Bay Area

Diamond Certified Company Report

Marty Kerr, Owner

Expert Contributions

53
Rating Surveys

16
Photos
& Videos

5
Researched Articles

Rated Highest in Quality and Helpful Expertise PERFORMANCE GUARANTEED

Quick Connect
(925) 526-5908

Hours CLOSED NOW

Learn how to choose a Home Energy Auditor and more…

Diamond Certified Home Energy Auditors In San Mateo County

Diamond Certified home energy auditors serving San Mateo County are rated an average of 4.5 out of 5 stars based on 60 reviews of 3 rated home energy auditors.
Diamond Certified home energy auditors in San Mateo County Avg. Star Rating.

We make you an expert at choosing a high-quality home energy auditor in the area.

For those who love quality local home energy auditors.

Within our Diamond Certified Resource:

You choose from only top rated Diamond Certified home energy auditors that serve our area.
You see each company’s deeply researched report from our research.
You get guidance throughout every phase of hiring a local home energy auditor with our Diamond Certified Resource Home Energy Efficiency Guide.
You get expert guidance from top rated home energy auditors who are Expert Contributors.
You’re backed by our Performance Guarantee.

You’ll love and refer your friends and family to your new area Diamond Certified home energy auditor. They provide expert services, including carbon footprint analyses, Green building assessments, energy management consultations, energy conservation education, energy-saving upgrades, and more.

To qualify for Diamond Certified, each company must score Highest in Quality and Helpful Expertise (a 90+ on a 100 scale) and pass all our credential-based ratings. Diamond Certified home energy auditors that serve residents include CalRATERS, Inc..

Every Diamond Certified home energy auditor that serves residents in 94080, 94015, 94014, 94303 and 94403 performs various specialties, including renewable energy options, energy-efficient lighting analyses, weatherization suggestions, HVAC system evaluations, and thermal imaging inspections.

How to Choose a Quality Home Energy Auditor for Your Family

Click the name of the company to get to their Diamond Certified Company Report page.
Watch their Diamond Certified Video Profile and other videos that we’ve created for you.
Read their verbatim client survey responses and our researched articles.
Get helpful home energy auditing tips if they are a Diamond Certified Expert Contributor.
Call or email them to schedule an appointment.

Become a Diamond Certified Preferred Member and Join Your Neighbors

If you love quality local companies, this is for you. Become a Diamond Certified Preferred Member (always free) and get a double performance guarantee, extra guides and tips, our annual Diamond Certified Directory, and more.

Your Diamond Certified Resource. We make you an expert at choosing.

We make you an expert at choosing local companies by giving you the most accurate ratings, deeply researched company reports and Diamond Certified Guide of all Resource Guides, which cover 70+ industries in the Auto, Home, Health and Personal service categories. Each guide contains 16 key articles that are separated into “Before, During and After the Job” tabs. These are written to guide you through each phase of hiring, starting, managing and ending a job in that specific type of service.

Diamond Certified Resource Compared to Crowd-Sourced Review Sites

Diamond Certified Resource’s ratings of local companies are based on surveys of only verified real customers, so they are the most accurate. This beats crowd-sourced review sites like Yelp, Angi or even Google that are plagued with fake, manipulated, cherry-picked and non-customer reviews, which produce inaccurate and often inflated rating scores.

Diamond Certified Resource’s deeply researched reports of top rated Diamond Certified companies include everything you need to see to be very confident in choosing a top rated local company. Each company report includes detailed quality ratings and scoring, verbatim customer survey responses, a profile video, a company story video, a capabilities table, a photo gallery, researched articles, unique expert contributions from the company’s owner, and more. This beats crowd-sourced review sites that solicit companies to “claim their business listing” and add any type of info to their profiles. This sounds good, but it has led to company profiles that are littered with false claims and incomplete info.

San Mateo County was founded in 1822, and today, your 710,810 neighbors use home energy auditors for blower door testing, energy management consultations, HERS inspections, appliance energy consumptions, energy assessments, and more.

Frequently Asked Questions for Home Energy Auditor in San Mateo, CA

Q: What are clients of Diamond Certified home energy auditors saying about companies in San Mateo County, CA?

A: Verified CalRATERS, Inc. Customer, 1 of 44
"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. They make my life easy and they take care of everything for me, including the permits. They schedule everything with the city and they work everywhere that we need." - Rachel A.
All Survey Responses for CalRATERS, Inc.

Q: What are some of the most popular brands that Diamond Certified home energy auditors use when working with San Mateo County residents?

A: Diamond Certified home energy auditors use top-quality brands like Sensit Technologies, PowerWise Systems, Amprobe, Fieldpiece Instruments and Bacharach.

Q: What types of HERS inspections do home energy auditors offer?

A: Home energy auditors offer a variety of Home Energy Rating System (HERS) inspections. These include diagnostic testing and inspections of the home's insulation, air leakage, heating and cooling systems, ventilation, lighting, and appliances. They also offer duct leakage and blower door tests. Additionally, they may perform a thermographic inspection using infrared technology to identify areas of energy loss. These inspections aim to evaluate the energy performance of a home and identify opportunities for energy-saving improvements.

Q: Can Diamond Certified home energy auditors work with FLIR Systems products and similar items so I can get blower door testing in San Mateo County?

A: Yes, Diamond Certified home energy auditors can use FLIR Systems products and similar items for blower door testing in San Mateo County.

Q: What did people search for when they wanted to find the best quality home energy auditors in San Mateo County?

A: Appliance Energy Consumptions
Home Energy Assessments
Home Solar Batteries
Energy Efficiency Evaluations
Hers Inspections

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View the Full Diamond Certified Guide to Home Energy Efficiency