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Verified Reviews for Energy Efficiency Auditing pros in Modesto, CA

*The Angi rating for Energy Efficiency Auditing companies in Modesto, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.

*The HomeAdvisor rating for Energy Efficiency Auditing companies in Modesto, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.

Last update on July 21, 2026

Find Energy efficiency auditors in Modesto

Avatar for Santiago Electric, Inc.
Santiago Electric, Inc.
4.9(
23
)
Energy Audit - For BusinessHome Energy Audit

Serving Modesto, CA and surrounding areas

Approved

In business since 2021

Free estimates

Warranties offered

"The owner responded quickly and came to our home for a free estimate within hours. He recommended installing a new outlet to prevent electrical issues down the road. The job was completed within 72hrs (due to the weekend) and we were very happy with the work. I would highly recommend and will use them again for future needs."
Response time5 hrs
Recommended by95%of homeowners
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Avatar for Apollo Energies
Apollo Energies
4.3(
2
)
Home Energy AuditEnergy Audit - For Business

Serving Modesto, CA and surrounding areas

Approved

In business since 2000

Customers say: Quick response

"Apollo did a fine job assessing my townhomes energy needs. The energy report covered what I needed."
Before and after attic insulation
Attic insulation
Normalized Indoor Iemperatures
Response time2 days
Response rate87%
8 neighbors recently requested a quote
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Avatar for Mega Power Electric, Inc
Mega Power Electric, Inc
5.0(
191
)
Energy Audit - For BusinessHome Energy Audit

Serving Modesto, CA and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"We recently had Mega Power Electric Inc install a solar system and panels. The President and provided excellent communication all the way through the process. He even met with us after installation to explain the almost incomprehensible PG&E bill. Although not the least expensive bid, his was competitive and I felt he was as interested in educating me about solar and the various types of panels and inverter systems as he was in selling a system. He demonstrated how the array of panels would meet our energy needs and as opposed to some of the other companies, wasn't selling us more than we needed. We are very satisfied with our solar system and I highly recommended Mega Power Electric Inc."
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+32

Recommended by100%of homeowners
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Avatar for Electrotrade SolarLife, Inc
Electrotrade SolarLife, Inc
5.0(
5
)
Energy Audit - For BusinessHome Energy Audit

Serving Modesto, CA and surrounding areas

In business since 2015

Free estimates

Emergency services offered

"The service was performed at a very high level and completed in a timely manner. The team worked with integrity and exhibited professionalism. I highly recommend them for any solar and energy needs."
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Recommended by100%of homeowners
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Energy Efficiency Auditing questions, answered by experts

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.

Depending on the level of audit you choose, a home energy audit will at least include a walk-through of the home to determine visible inefficiencies, but may include testing and a highly detailed inspection and report laying out the home’s inefficiencies and providing recommendations to fix those issues. The audit may also include a review of utility bills and mechanical testing. Consult your home energy auditor about the types of services they provide before hiring.

The number one culprit of high energy bills is older appliances, especially fridges and freezers that are left on all the time. These two appliances tend to last a long time, which is good, but it also means that newer models are usually significantly more energy-efficient due to upgraded technology. The second most common reason for a high bill is heating and air conditioning.

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.

Homeowners may qualify for an HVAC tax credit if they install an ENERGY STAR®-certified HVAC system that exceeds the energy efficiency minimum standards:

  • Split-System AC: 16 SEER2

  • Packaged AC: 15.2 SEER2 and 11.5 EER2

  • Ducted Split Heat Pump: 15.2 SEER2, 7.8 HSPF2, and 11.7 EER2 

  • Packaged Heat Pump: 15.2 SEER2, 7.2 HSPF2, and 10.6 EER2

  • Mini-Split System: 16 SEER2, 9 HSPF2, and 12 EER2

You can claim up to 30% of the cost of the job, subject to maximums.

The Modesto, 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.

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