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Best energy efficiency auditors near Gardena, CA

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Top-Rated Energy efficiency auditors in Gardena - Updated Nov 2026

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

Serving Gardena, 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 Insulation Nation, LLC
Insulation Nation, LLC
5.0(
7
)
Home Energy Audit

Serving Gardena, CA and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"We had Insulation Nation (Dustin) come to our house to look at our attis insulation; our house was built in the late 70's and I had added more blown-in insulation many years ago. We decided on adding 8" of blown-in insulation to reduce our heating/cooling cost and to reduce the cycling of our HVAC system. They did a wonderful job of sealing any attic leaks, covers for our canned lighting fixtures, built a dam around our whole house fan, added baffles around our soffits, and added the insulation. Nicely done and a professional job. Would recommend using their service."
Air Seal (Mineral wool light covers) and Batt - R38 Attic
Vaulted/Cathedral Ceiling - R43 Combo of RIgid Foam Board and Batt
Same
Full Removal, Radiant Barrier and Replacment
Batt Insulation In Attic Perpendicular Layered

+33

56 neighbors recently requested a quote
Recommended by14%of homeowners
Solar Energy License Not Yet Provided
New to Angi
Energy Audit - For BusinessHome Energy Audit

Serving Gardena, CA and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

Empowered Solutions 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. \n

Response time40 mins
Avatar for JO Solar Designs
JO Solar Designs
New to Angi
Energy Audit - For BusinessHome Energy Audit

Serving Gardena, 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 Gardena, CA and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"Mega Power Electric is an excellent company to work with. Gary and his team are knowledgeable, honest, and will go out of their way to get the job done right. We installed panels and solar battery storage unit in our home and we're reaping the benefits of being clean and green."
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+32

Recommended by100%of homeowners
Avatar for SunRun LLC
SunRun LLC
5.0(
12
)
Energy Audit - For BusinessHome Energy Audit

Serving Gardena, CA and surrounding areas

In business since 2007

Free estimates

"Trevor Flahive did an absolutely amazing job getting a system designed and installed! He was professional, thorough, and had the system up and running in no time. 10/10 I would recommend new customers to Mr.Flahive, very impressive."
Install!
Start saving on electric charges
Install in San Diego
Wonder What We Do??
Additional Photos

+8

Recommended by100%of homeowners
Avatar for HealthyHomes4U Inc
HealthyHomes4U Inc
4.1(
37
)
Energy Audit - For BusinessHome Energy Audit

Serving Gardena, CA and surrounding areas

In business since 2011

Credit card accepted

"That was fine. It was cool. hey came and did the energy scan and they pitched their products which was way out of price range. It was good to find out where we had our little heat and chronic leak. They did it for the $39 big deal cost. The price was really good. If I needed another energy scan, I would use them in the future. I would consider them in the future. They're expensive for what they actually do but the energy scan was a really good deal."
Recommended by62%of homeowners
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Energy Efficiency Auditing FAQs, answered by experts

You can check your home's humidity in a few ways. A simple option is to use a hygrometer, which you can find at a hardware or big box store. Your smartphone may also have an app that can measure humidity. Modern thermostats, particularly smart thermostats, are also able to measure humidity levels.

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, barndominiums are energy-efficient as long as insulation professionals properly install quality insulation, windows, and doors. Utility bills for barndo living can be up to 50% lower than those for a traditional home.  Make your barndo more energy efficient by working with contractors and HVAC professionals to strategically place windows, doors, and heating/cooling systems. 

No, it isn’t necessary to have energy-efficient windows. However, if you care about your energy bill and making your windows more energy efficient, fixing any heat, UV, or air transfer issues is an excellent way to lower your bills and keep your house cooler in the summer and warmer in the winter.

Energy-efficient windows are judged on their performance according to a few different factors, including heat transfer, air leakage, light transference, and condensation resistance. If you're unsure whether a window is energy-efficient, look for an ENERGY STAR® label from the U.S. Environmental Protection Agency (EPA). If various products, including windows, meet energy-efficiency standards set by the federal government, the EPA issues this label to help consumers identify energy-efficient products.

The Gardena, 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.