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Best energy efficiency auditors near Simi Valley, CA

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Top-Rated Energy efficiency auditors in Simi Valley - Updated Nov 2026

Avatar for Global Green Solutions
Global Green Solutions
5.0(
248
)
Energy Audit - For BusinessHome Energy Audit

Serving Simi Valley, CA and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"We decided it was time to replace our old A/C unit, and this company made the entire process stress-free. They helped us choose the right system, installed it efficiently, and explained how everything works. Our home is cooler than ever, and our energy bills have already dropped. Truly exceptional service!"
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+24

Response time3 days
8 neighbors recently requested a quote
Recommended by7%of homeowners
Avatar for JO Solar Designs
JO Solar Designs
New to Angi
Energy Audit - For BusinessHome Energy Audit

Serving Simi Valley, CA and surrounding areas

Approved

In business since 2018

Free estimates

Offers commercial services

JO Solar Designs is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

Response time2 days
Avatar for Mega Power Electric, Inc
Mega Power Electric, Inc
5.0(
191
)
Energy Audit - For BusinessHome Energy Audit

Serving Simi Valley, CA and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"Great job on the house, they had everything installed in 3 days and once the LAWP Panel from the power company and hooked everything, then everything was working well. they took care of all the paper works and documentation, and everything was done quickly. Best price available for us."
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+32

Recommended by100%of homeowners
Avatar for Excellence Electric
Excellence Electric
4.8(
293
)
Energy Audit - For BusinessHome Energy Audit

Serving Simi Valley, CA and surrounding areas

In business since 2005

Free estimates

Emergency services offered

"The work was done professionally and done on schedule. Raymond the manager gave me all the information I needed before the start of the project . The communication was timely and valuable throughout the project. The main reason I hired Excellent Electric is because Raymond also made recommendations that help to reduce the cost of materials and labor. I interviewed three other companies and all gave me competitive prices, but the recommendations Raymond gave me, set Excellent Electric above the three other companies I interviewed. I will hire Excellent Electric again and recommend this company."
Electrical Project
Electrical Project
Electrical Project
Electrical Project
Electrical Project

+18

Response time2 days
Recommended by97%of homeowners
Avatar for California Energy Builders, Inc.
California Energy Builders, Inc.
5.0(
14
)
Energy Audit - For BusinessHome Energy Audit

Serving Simi Valley, CA and surrounding areas

In business since 2017

Free estimates

Offers commercial services

"Besides Solar work that they completed at my house, CEB also installed 2 ceiling fans inside house, and removed all interior carpet and put 2'x2' Travertine ties w the thinset & grout, and painted the entire interior of house. They took care of the project clean-up as if it were their house. I researched what CEB can do, and with their Class "B" Contractor license they can build a house from the ground up, and do Home Improvement projects, and pull any required permits from the City. These guys are legit. You will be a satisfied customer working with California Energy Builders."
Response time5 hrs
Recommended by100%of homeowners
Avatar for Green Source Energy INC.
Green Source Energy INC.
4.7(
42
)
Energy Audit - For BusinessHome Energy Audit

Serving Simi Valley, CA and surrounding areas

In business since 2006

Free estimates

Credit card accepted

"We purchased the home energy audit with the understanding that we would be receiving a more extensive analysis of our home energy usage along with possible solutions. Ultimately, the process was more about a presentation for solar panels that anything else, which was not what we were looking for when we purchased the offer. Richard was very professional and thorough in his presentation and presented options regarding areas to save in terms of energy usage but those areas were not as thoroughly explored as the solar discussion. Green Source Energy should be more direct about what the Home Energy Audit entails so buyers can make an informed decision."
Recommended by91%of homeowners
Avatar for MightyServ
MightyServ
4.7(
385
)
Energy Audit - For BusinessHome Energy Audit

Serving Simi Valley, CA and surrounding areas

In business since 1963

Credit card accepted

"Once again, Canoga Park heating and air-conditioning was incredible . Kevin was polite, professional and very knowledgeable and you should be very proud of him . I will continue to recommend your company to all of my friends and post online as I have been doing on the next-door app for my neighborhood . Keep up the good work—you are awesome !"
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heating and A/C
Recommended by95%of homeowners
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Energy Efficiency Auditing FAQs, answered by experts

If you have central air conditioning, it’s fine to run your AC all day if that’s what you want—as long as the AC unit is in good condition. But if your AC runs constantly when you don’t want it to, there may be a problem with your system (like the ones we’ve mentioned above). Window AC units and wall air conditioners aren’t as powerful as central AC, so you should only run those kinds of air conditioners for eight to 12 hours at a time.

You'll likely need more than great home staging to sell your home. Now is a great time to get to work on the curb appeal of your home . Hire local exterior painters and landscapers to coat the exterior of your home and bring it new life with some sprucing up.

R-value is calculated by dividing the thickness of an insulation material by its thermal conductivity. The material's composition and density influence thermal conductivity. Materials with lower conductivity values provide better insulation. The higher the R-value, the better the material is at insulating, helping homeowners select insulation that meets the energy needs of their climate and home layout.

Yes, skylights can affect a home’s energy efficiency, either positively or negatively. Properly installed, energy-efficient skylights with Low-E coatings, double glazing, and UV-blocking glass can help regulate indoor temperatures and reduce heating and cooling costs. However, poorly insulated or older skylights can contribute to heat loss in winter and excess heat gain in summer, lowering overall energy efficiency.

Home power is measured in kilowatt-hours, commonly expressed as kWh. The average home uses between 800 and 1,000 kWh per month. Peak usage (and highest bills) occurs in the middle of summer and the depths of winter. Keeping on top of your usage during these crucial months will lower your annual average usage considerably. 

The Simi Valley, CA homeowners’ guide to energy efficiency auditing services

From average costs to expert advice, get all the answers you need to get your job done.