Top-rated energy efficiency auditors.

Get matched with top energy efficiency auditors in Oregon House, CA

Enter your zip and get matched with up to 5 pros

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

Select your specific project to find the pro for you.

Find Energy efficiency auditors in Oregon House

Avatar for Capital City Solar

Capital City Solar

4.97(
31
)

Capital City Solar

4.97(
31
)
Customers say: True professional
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

Capital City Solar has the experience and passion to deliver results in Northern California. We aim to make every experience for our individual homeowners and commercial clients memorable. Making the decision to rely on solar energy will be the best decision you’ve ever made. Turn Key Solutions: We do it all so you don’t have to. Leading Elite Dealer for SunPower Flexible financing solutions. Our experience and knowledge means we deliver the best solar solution for you. Professional quality installation on time and on budget with over 50 years of combined experience as solar electrical contractors, Capital City Solar has established a company with an emphasis on customer service. We install only the highest quality products - ones that make a difference for the environment and that work toward a cause which makes economic sense. We design, permit, install and stand behind the warranties of all the systems we build and we do not sub-contract any of our jobs. We live and breathe clean energy to stay on top of our game and provide our customers with the latest in solar technology. What makes us qualified? North American Board of Certified Energy Practitioners NABCEP Certified Solar PV Installer & C-10 electrical contractor. Award winning.

"They were great. Took 2 days and they installed 29 panels. Crew was great. We would have them back again if we needed them. I have an app to monitor the system. SMUD bill is now $20. and that is the charge to stay attached to the grid which is a must."

Linda D on December 2019

Capital City Solar has the experience and passion to deliver results in Northern California. We aim to make every experience for our individual homeowners and commercial clients memorable. Making the decision to rely on solar energy will be the best decision you’ve ever made. Turn Key Solutions: We do it all so you don’t have to. Leading Elite Dealer for SunPower Flexible financing solutions. Our experience and knowledge means we deliver the best solar solution for you. Professional quality installation on time and on budget with over 50 years of combined experience as solar electrical contractors, Capital City Solar has established a company with an emphasis on customer service. We install only the highest quality products - ones that make a difference for the environment and that work toward a cause which makes economic sense. We design, permit, install and stand behind the warranties of all the systems we build and we do not sub-contract any of our jobs. We live and breathe clean energy to stay on top of our game and provide our customers with the latest in solar technology. What makes us qualified? North American Board of Certified Energy Practitioners NABCEP Certified Solar PV Installer & C-10 electrical contractor. Award winning.

"They were great. Took 2 days and they installed 29 panels. Crew was great. We would have them back again if we needed them. I have an app to monitor the system. SMUD bill is now $20. and that is the charge to stay attached to the grid which is a must."

Linda D on December 2019


Avatar for NRG Clean Power

NRG Clean Power

4.58(
43
)

NRG Clean Power

4.58(
43
)
Customers say: Terrific value
2000 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


"Excellent work and professionalism."

Carol F on October 2018

Established in Sacramento since 2001 Specialties - Green building - Heating & Air Conditioning (service & Installation) - Insulation - Weatherization -Radiant flooring - Energy retrofits and more...

"Excellent work and professionalism."

Carol F on October 2018


Avatar for EcoAttics Energy Saving Solutions

EcoAttics Energy Saving Solutions

4.80(
20
)

EcoAttics Energy Saving Solutions

4.80(
20
)
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers

Our solutions are guaranteed to cut costs and improve your comfort. One of these solutions is radiant barrier. While many homes already have insulation installed, radiant barrier provides industry-leading technology that will protect your house from extreme temperatures. Additional email - [email protected].

Our solutions are guaranteed to cut costs and improve your comfort. One of these solutions is radiant barrier. While many homes already have insulation installed, radiant barrier provides industry-leading technology that will protect your house from extreme temperatures. Additional email - [email protected].



Avatar for Golden State Inspection Services

Golden State Inspection Services

4.57(
7
)

Golden State Inspection Services

4.57(
7
)
Customers say: Quick response
1999 years of experience

Golden State Inspection Services, LLC is a service oriented, multi-inspector firm. We conduct buyer home inspections, seller home inspections and commercial property inspections, mold testing, infrared scanning and comprehensive energy audits. Golden State Inspection services conducts inspections throughout northern California.

"Summary: Zero communication after the inspection. I hate to leave a negative review but I believe this must be done given my experience. I had an inspector come by on 2/26 for pest control. He was considerate and thorough (the only reason I am giving two stars instead of just one), and he told me I would receive the complete quote on the following Monday. Well, that did not happen. After waiting on the quote for a whole week, I called the company on 3/5 and let them know that I didn't receive my quote. They said they would look into my case and call me back right away. Well, that did not happen either. So on 3/9, I called the company again to inquire on the status of my quote (I actually had to help them backtrack to find my record!). I was told that they would contact the inspector who came to my house and call me back ASAP. Well, today is 3/20 and I haven't heard back yet. I am giving up."

Hans K on March 2021

Golden State Inspection Services, LLC is a service oriented, multi-inspector firm. We conduct buyer home inspections, seller home inspections and commercial property inspections, mold testing, infrared scanning and comprehensive energy audits. Golden State Inspection services conducts inspections throughout northern California.

"Summary: Zero communication after the inspection. I hate to leave a negative review but I believe this must be done given my experience. I had an inspector come by on 2/26 for pest control. He was considerate and thorough (the only reason I am giving two stars instead of just one), and he told me I would receive the complete quote on the following Monday. Well, that did not happen. After waiting on the quote for a whole week, I called the company on 3/5 and let them know that I didn't receive my quote. They said they would look into my case and call me back right away. Well, that did not happen either. So on 3/9, I called the company again to inquire on the status of my quote (I actually had to help them backtrack to find my record!). I was told that they would contact the inspector who came to my house and call me back ASAP. Well, today is 3/20 and I haven't heard back yet. I am giving up."

Hans K on March 2021


R B Spencer Inc Heating & Air

5.00(
5
)

R B Spencer Inc Heating & Air

5.00(
5
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

R.B. Spencer Inc installs and maintains heating and air conditioning units (HVAC) for homes and businesses throughout the N. California. Twenty-four hours a day and seven days a week air conditioning and heating repair and installation headquarters in Yuba City California. With a staff of fully trained and certified air conditioning and refrigeration technicians throughout Northern California to better help you. Serving Colusa County, Nevada County, Placer County, Glenn County, Yolo County, Butte County, Sacramento County Yuba County and Sutter County since 1984. Additional email: [email protected]

R.B. Spencer Inc installs and maintains heating and air conditioning units (HVAC) for homes and businesses throughout the N. California. Twenty-four hours a day and seven days a week air conditioning and heating repair and installation headquarters in Yuba City California. With a staff of fully trained and certified air conditioning and refrigeration technicians throughout Northern California to better help you. Serving Colusa County, Nevada County, Placer County, Glenn County, Yolo County, Butte County, Sacramento County Yuba County and Sutter County since 1984. Additional email: [email protected]


"Cody Brogdon, Austin and Jeremy were on time, efficient, put tarps down everywhere to protect our closet and floors. They put insulation material through a pipline from outside through the house and into the closet and into the roof over a time of 2 hours. The work could not have been better. The men were all very nice and cleaned up after the job was finished. Cody looked at our other energy appliances to evaluate them for being up-to-date. He informed us of what the company could do for us when we need such things, like AC /heater services. I would use them at the appropriate time, we are very impressed !"

Mardi H on April 2019

Energy Saving Pros is a full-service energy solutions provider; we help businesses, homeowners, municipalities, and schools integrate alternative energy production and energy efficiency.

"Cody Brogdon, Austin and Jeremy were on time, efficient, put tarps down everywhere to protect our closet and floors. They put insulation material through a pipline from outside through the house and into the closet and into the roof over a time of 2 hours. The work could not have been better. The men were all very nice and cleaned up after the job was finished. Cody looked at our other energy appliances to evaluate them for being up-to-date. He informed us of what the company could do for us when we need such things, like AC /heater services. I would use them at the appropriate time, we are very impressed !"

Mardi H on April 2019


Imperial Heating

5.00(
6
)

Imperial Heating

5.00(
6
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are a full service heating and airconditioning company, if needed we can repair,replace,troubleshoot or do energy audits on your home or business. We are a small family run business that has been in the field of HVAC since 1986 and most of the work we have provided has been by referral. Additional DBA - Imperial Heating and Cooling.

We are a full service heating and airconditioning company, if needed we can repair,replace,troubleshoot or do energy audits on your home or business. We are a small family run business that has been in the field of HVAC since 1986 and most of the work we have provided has been by referral. Additional DBA - Imperial Heating and Cooling.


Collins Inspection Services

4.63(
8
)

Collins Inspection Services

4.63(
8
)
Customers say: Quick response
2000 years of experience

Owner, Scott Collins is a California licensed general contractor and certified home inspector. We offer residential and commercial real estate inspection services including specialties such as new construction, pool inspections, 203Ks and energy audits (with rebate programs through SMUD and PG&E). The construction side of our business can provide you with a wide range of services from new home construction, additions, kitchen and bath remodels and energy upgrades through EUC and Ygreen programs.

Owner, Scott Collins is a California licensed general contractor and certified home inspector. We offer residential and commercial real estate inspection services including specialties such as new construction, pool inspections, 203Ks and energy audits (with rebate programs through SMUD and PG&E). The construction side of our business can provide you with a wide range of services from new home construction, additions, kitchen and bath remodels and energy upgrades through EUC and Ygreen programs.

Showing 1-10 of 48
Energy Efficiency Auditing questions, answered by experts

A small sump pump running infrequently uses an average of 10 kilowatt-hours (kWh) of electricity per month. The average cost for electricity is $0.171 per kWh. The size and use frequency affect how much electricity it uses. Sump pumps average one-third to one horsepower (hp) motors. One hp is equal to 745.7 watts. Watts multiplied by the time your pump is running divided by 1,000 equals your average kWh. Multiply kWh by your average cost of electricity. In areas with high rain or a marsh basin, the average cost can be as high as $15-$25 a month.

When combined with a substantial solar system, if you have enough Powerwalls, you could go off-grid and be energy independent. But remember, you'd need enough Powerwalls to power your whole home continuously because a single Powerwall can’t power large appliances for extended periods. One Powerwall is able to power an average-sized home's emergency circuits, lights, and outlets. To power large appliances, you likely need two or three Powerwalls.

Energy-efficient windows cost more than other window types, but they can help you save on your monthly energy bills, get you some breaks on your taxes, and even increase the value of your home. According to Michael S. Regan, Administrator of the U.S. Environmental Protection Agency, when people invest in green upgrades like energy-efficient windows, they save energy, money, and more.

There are a few ways to reduce your electricity bills if you use window AC units to keep cool. Set the unit temperature at least 1 degree higher than it is currently to reduce costs. Keep the unit clean for it to run efficiently. You may want to hire a window AC specialist near you to inspect the unit once a year and keep it in tip-top shape.

Yes, these services often increase home value by preventing moisture-related issues and enhancing the usable space in basements or crawlspaces.

The Oregon House, 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.