Top-rated energy efficiency auditors.

Get matched with top energy efficiency auditors in Redding, CA

Enter your ZIP and get matched with up to 5 pros

Need a pro for your energy efficiency auditing project in Redding, CA?

Select your specific project to find the pro for you.

Find Energy efficiency auditors in Redding

Avatar for Gallaghers Plumbing, Heating & Air Inc.

Gallaghers Plumbing, Heating & Air Inc.

3.26(
84
)
Approved Pro

Gallaghers Plumbing, Heating & Air Inc.

3.26(
84
)
Approved Pro
71 local quotes requested
36 years of experience

Welcome to Gallagher's Heating, Air Conditioning & Plumbing, where your family's comfort and safety are our top priorities. Whether you need air conditioning service, heating repairs, plumbing solutions, or indoor air quality improvements, you'll be served by one of our "Stand Up Guys" - highly trained professionals you can trust. Every member of our team has completed rigorous technical training, passed comprehensive background checks, and regular drug screening. We take pride in sending only the most qualified, courteous, and reliable technicians to your home. When you choose Gallagher's, you're choosing peace of mind and exceptional service from professionals who treat your home as if it were their own.

Welcome to Gallagher's Heating, Air Conditioning & Plumbing, where your family's comfort and safety are our top priorities. Whether you need air conditioning service, heating repairs, plumbing solutions, or indoor air quality improvements, you'll be served by one of our "Stand Up Guys" - highly trained professionals you can trust. Every member of our team has completed rigorous technical training, passed comprehensive background checks, and regular drug screening. We take pride in sending only the most qualified, courteous, and reliable technicians to your home. When you choose Gallagher's, you're choosing peace of mind and exceptional service from professionals who treat your home as if it were their own.


Avatar for RSS Solar

RSS Solar

No reviews yet

RSS Solar

No reviews yet
Free onsite estimate

We make solar simple-- We are dedicated to making solar energy affordable and accessible to everyone-- with ZERO upfront costs.* Your home can become its own tiny power station and generate plenty of reliable energy, all while reducing your electricity bill. Plus, it doesn't hurt that your greener lifestyle will help your state achieve its renewable energy goals.

We make solar simple-- We are dedicated to making solar energy affordable and accessible to everyone-- with ZERO upfront costs.* Your home can become its own tiny power station and generate plenty of reliable energy, all while reducing your electricity bill. Plus, it doesn't hurt that your greener lifestyle will help your state achieve its renewable energy goals.


Avatar for Residential Weatherization Inc

Residential Weatherization Inc

5.00(
3
)

Residential Weatherization Inc

5.00(
3
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

RWI is a woman owned small business that has been serving Northern California communities for the last 20 years. Our mission is to improve the quality of life for each individual who crosses our path. In order to accomplish this, we focus on making your home as energy efficient as possible. As an active contractor with PG&E’s Energy Savings assistant program our team constantly receives training and skill improvement with today’s evolving energy conservation practices. Our crews are ISNET Plus certified and we hold an “A+” rating with the BBB.

"Wonderful"

Foster L on May 2022

RWI is a woman owned small business that has been serving Northern California communities for the last 20 years. Our mission is to improve the quality of life for each individual who crosses our path. In order to accomplish this, we focus on making your home as energy efficient as possible. As an active contractor with PG&E’s Energy Savings assistant program our team constantly receives training and skill improvement with today’s evolving energy conservation practices. Our crews are ISNET Plus certified and we hold an “A+” rating with the BBB.

"Wonderful"

Foster L on May 2022


Avatar for USA Alarm Service, Inc

USA Alarm Service, Inc

No reviews yet

USA Alarm Service, Inc

No reviews yet
29 years of experience

USA Alarm is a national company that has more than two decades of experience and an award winning command center that protects more than 700,000 homes and businesses through the United States, 24 hours a day and 7 days a week. We have offices located throughout the US, with two main offices in Indianapolis, Indiana and Post Falls, Idaho.

USA Alarm is a national company that has more than two decades of experience and an award winning command center that protects more than 700,000 homes and businesses through the United States, 24 hours a day and 7 days a week. We have offices located throughout the US, with two main offices in Indianapolis, Indiana and Post Falls, Idaho.


Avatar for NRG Clean Power

NRG Clean Power

4.58(
43
)

NRG Clean Power

4.58(
43
)
Customers say: Terrific value
25 years of experience

NRG Clean Power is California’s leading clean power provider. We leverage over 30 years of superior customer service installing solar from the south of San Diego to the northern border with Oregon. In other words, regardless of where you are in California, we can help you make the switch to solar! Not only do we offer top-tier solar services, we are also a total home performance company, devoted to sustainability and energy efficiency. We offer fully customized home and business solar installations with battery backup capabilities. We do not service solar systems that we did not install. We believe the future is clean, renewable energy and with your help we are committed to creating it together. Customer satisfaction is a crucial aspect and the cornerstone of our business. As a result, we have earned the prestigious Diamond Certification 4 years in a row, along with the 2019 Angie’s List Super Service Award. NRG Clean Power offers the finest solar products at the best rates with finance options for everyone. We will be with you every step of the way and for years to come. Check out our promos to take advantage of our best deals. And ask about our Referral Program that allows customers like you to earn cash bonuses for referring friends and family!

"No doubt they hire great installation people, but their communication and honoring their quotes has little to be desired. I will elaborate. I was given a quote, left on my voicemail. I responded the next day letting NRG know I accepted their quote. 1 week later I received a phone call telling me they wouldn't honor the quote give, and they cited the reasons as Tarif's. This was back in April 2025. I still went with NRG, albeit at a$1000.00 increase. The second reason I wouldn't recommend this company, and this for me is the final straw, after installing my solar NRG didn't let me know I needed to have an ESR release, in layman's terms this is necessary for your power company to accept your new solar system. I found out this information when they contacted me in August 2025. NEG blamed the company who upgraded my Electrical Panel. NRG INSTALLED MY SOLAR AFTER THE PANEL WAS UPGRADED. Since this company doesn't communicate with its clients I would say go with another company."

Daniel S on August 2025

NRG Clean Power is California’s leading clean power provider. We leverage over 30 years of superior customer service installing solar from the south of San Diego to the northern border with Oregon. In other words, regardless of where you are in California, we can help you make the switch to solar! Not only do we offer top-tier solar services, we are also a total home performance company, devoted to sustainability and energy efficiency. We offer fully customized home and business solar installations with battery backup capabilities. We do not service solar systems that we did not install. We believe the future is clean, renewable energy and with your help we are committed to creating it together. Customer satisfaction is a crucial aspect and the cornerstone of our business. As a result, we have earned the prestigious Diamond Certification 4 years in a row, along with the 2019 Angie’s List Super Service Award. NRG Clean Power offers the finest solar products at the best rates with finance options for everyone. We will be with you every step of the way and for years to come. Check out our promos to take advantage of our best deals. And ask about our Referral Program that allows customers like you to earn cash bonuses for referring friends and family!

"No doubt they hire great installation people, but their communication and honoring their quotes has little to be desired. I will elaborate. I was given a quote, left on my voicemail. I responded the next day letting NRG know I accepted their quote. 1 week later I received a phone call telling me they wouldn't honor the quote give, and they cited the reasons as Tarif's. This was back in April 2025. I still went with NRG, albeit at a$1000.00 increase. The second reason I wouldn't recommend this company, and this for me is the final straw, after installing my solar NRG didn't let me know I needed to have an ESR release, in layman's terms this is necessary for your power company to accept your new solar system. I found out this information when they contacted me in August 2025. NEG blamed the company who upgraded my Electrical Panel. NRG INSTALLED MY SOLAR AFTER THE PANEL WAS UPGRADED. Since this company doesn't communicate with its clients I would say go with another company."

Daniel S on August 2025


Avatar for Solar Wolf Energy

Solar Wolf Energy

2.00(
2
)

Solar Wolf Energy

2.00(
2
)
10 years of experience

Solar Wolf is a full service solar company with a great reputation and an old world belief to our customers. To under-promise and over-deliver, period. We have 18 years experience in construction, remodeling, roofing, solar water heaters, solar pv systems, battery back-up systems and much more. See what Solar Wolf Energy can do for you!

Solar Wolf is a full service solar company with a great reputation and an old world belief to our customers. To under-promise and over-deliver, period. We have 18 years experience in construction, remodeling, roofing, solar water heaters, solar pv systems, battery back-up systems and much more. See what Solar Wolf Energy can do for you!



Energytech Inc. DBA Advance Power Redding

No reviews yet

Energytech Inc. DBA Advance Power Redding

No reviews yet
24 years of experience

Wholesale & retail renewable energy store specializing in energy conservation & production. We install solar or sell you the materials. We stock Solar panels, 6v batteries, LIPO-4 batteries, DC to AC power inverters, wind turbines, Hydro turbines & parts, radiant barrier foil, Son Shield insulating paint & roof coat. And much more.

Wholesale & retail renewable energy store specializing in energy conservation & production. We install solar or sell you the materials. We stock Solar panels, 6v batteries, LIPO-4 batteries, DC to AC power inverters, wind turbines, Hydro turbines & parts, radiant barrier foil, Son Shield insulating paint & roof coat. And much more.



Avatar for Energy Docs

Energy Docs

5.00(
1
)

Energy Docs

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Energy Docs Home Performance Contractor specializes in energy efficient home retrofitting using "house as a system" building science to upgrade existing homes and construct brand new homes. We deliver uncompromising quality and comfort in our HVAC installations, backed by our reputation and long warrantees. We even provide a full bill guarantee so you know we stand behind our savings promises. And we have multiple customers that are saving over $5,000 PER YEAR on their utility bills, and 75% from previous years. We're the ones you call when you're tired of high bills and discomfort in your home. We professionally install everything "in house" including: High performance HVAC, water heaters, electrical, insulation, air sealing, windows, doors, crawlspace vapor barriers- whatever your home needs to be more efficient, durable and comfortable. Call us today and we'll come out and look at your home with you and explain, at no obligation, our full diagnostic assessment testing process. Then we'll spend a day testing your home using special equipment and the latest building science, then show you the results in a comprehensive report, and then work with you to design a retrofit strategy that meets your needs and budget. The end result will be converting your "gas guzzling" house into a healthy, comfortable, safe, and energy efficient home- one you are very proud to live in. If you want the absolute best quality, that's what you'll get with us. No cut ting of corners, and absolutely everything you're paying for. We are the founders of Home Performance in Redding, as well as nationally recognized instructors and test mentors through the Building Performance Institute (BPI). Home Performance is all we do, and we won't try to sell you something cheap that will cost you two-to-four times more to operate over its lifetime. Don't hesitate, there are HUGE rebates available today that we can get for you if you'll only call us at 245-1703.

Energy Docs Home Performance Contractor specializes in energy efficient home retrofitting using "house as a system" building science to upgrade existing homes and construct brand new homes. We deliver uncompromising quality and comfort in our HVAC installations, backed by our reputation and long warrantees. We even provide a full bill guarantee so you know we stand behind our savings promises. And we have multiple customers that are saving over $5,000 PER YEAR on their utility bills, and 75% from previous years. We're the ones you call when you're tired of high bills and discomfort in your home. We professionally install everything "in house" including: High performance HVAC, water heaters, electrical, insulation, air sealing, windows, doors, crawlspace vapor barriers- whatever your home needs to be more efficient, durable and comfortable. Call us today and we'll come out and look at your home with you and explain, at no obligation, our full diagnostic assessment testing process. Then we'll spend a day testing your home using special equipment and the latest building science, then show you the results in a comprehensive report, and then work with you to design a retrofit strategy that meets your needs and budget. The end result will be converting your "gas guzzling" house into a healthy, comfortable, safe, and energy efficient home- one you are very proud to live in. If you want the absolute best quality, that's what you'll get with us. No cut ting of corners, and absolutely everything you're paying for. We are the founders of Home Performance in Redding, as well as nationally recognized instructors and test mentors through the Building Performance Institute (BPI). Home Performance is all we do, and we won't try to sell you something cheap that will cost you two-to-four times more to operate over its lifetime. Don't hesitate, there are HUGE rebates available today that we can get for you if you'll only call us at 245-1703.

Showing 1-10 of 20
Energy Efficiency Auditing questions, answered by experts

Not all homes are suited for solar panel systems. Older roofs or those in poor condition may need repairs or replacement before solar panels can be installed. Some other factors to consider are the amount of sunlight your roof receives, the roof’s orientation and pitch, and any shading from nearby trees or buildings.

HVAC systems use the most household electricity. This major and essential system is responsible for heating and cooling your home all year round. Since they operate for a significant amount during the day, it consumes more energy than other appliances. 

Modern windows provide enhanced UV protection, improved heat retention, and cooling efficiency, contributing to overall household energy savings.

Absolutely! Especially if you have an older home that currently doesn’t have air conditioning where installing ductwork just wouldn't work. No one likes being hot in the warmer months, so if you’re looking to sell your home in the near future, installing a ductless mini-split AC can be a good way to enjoy your home more while you’re in it, boost the return on your sale, and serve as a perk to peak buyers’ interest.

Yes, a dirty air filter can cause a higher electric bill. That’s because clogged filters make it harder for air to flow through your HVAC system, which forces it to work harder and use more energy. According to the U.S. Department of Energy, replacing dirty filters can save you between 5% and 15% in utility costs.

The Redding, 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.