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Verified Reviews for Energy Efficiency Auditing pros in Oak View, CA
*The Angi rating for Energy Efficiency Auditing companies in Oak View, 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 Oak View, 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 January 04, 2026
Find Energy efficiency auditors in Oak View

Prosper Construction Development, Inc.
Prosper Construction Development, Inc.
We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer a variety of services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!
"Fast response and clear communication throughout the process."
Marco T on April 2025
We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer a variety of services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!
"Fast response and clear communication throughout the process."
Marco T on April 2025

E.Z. Energy Solutions
E.Z. Energy Solutions
One of Southern California's favorite Solar Energy Expert and Home Improvement/ Remodeling Contractor in Southern California! We provide you with clean, efficient and affordable solutions customized to your needs. Our highly skilled technicians will be with you throughout the entire process to help you secure your Energy Future and Home Remodeling dreams! When you decide to go solar or remodel part or all of your home or commercial project, you need a team you can trust to create top-quality work, with consistent communication and a great reputation E.Z. Energy Solutions has worked hard since our founding in 2008 to become the company we are today! Services include Solar Panels, Home Solar, Commercial Solar, Insulation, Solar Electric, Solar Panel Installation, Complete Residential and Commercial Remodeling, Kitchen Remodeling, Bathroom Remodeling, Custom Accessory Dwelling Unit, Garage Conversion and Addition, Room Addition, Interior and Exterior Paint, Roofing, Solar Panel Installation, Repair, Maintenance, Energy Efficiency Consultations and Products, AC;
"My panels haven’t work for the last 8 months And I’m paying for them and paying Edison for electricity., we all could have mistakes but I think 8 months is just ridiculous time very very frustrated I don’t know what to do anymore"
Oscar L on September 2022
One of Southern California's favorite Solar Energy Expert and Home Improvement/ Remodeling Contractor in Southern California! We provide you with clean, efficient and affordable solutions customized to your needs. Our highly skilled technicians will be with you throughout the entire process to help you secure your Energy Future and Home Remodeling dreams! When you decide to go solar or remodel part or all of your home or commercial project, you need a team you can trust to create top-quality work, with consistent communication and a great reputation E.Z. Energy Solutions has worked hard since our founding in 2008 to become the company we are today! Services include Solar Panels, Home Solar, Commercial Solar, Insulation, Solar Electric, Solar Panel Installation, Complete Residential and Commercial Remodeling, Kitchen Remodeling, Bathroom Remodeling, Custom Accessory Dwelling Unit, Garage Conversion and Addition, Room Addition, Interior and Exterior Paint, Roofing, Solar Panel Installation, Repair, Maintenance, Energy Efficiency Consultations and Products, AC;
"My panels haven’t work for the last 8 months And I’m paying for them and paying Edison for electricity., we all could have mistakes but I think 8 months is just ridiculous time very very frustrated I don’t know what to do anymore"
Oscar L on September 2022

Sunlux Energy
Sunlux Energy
Sunlux is a roofing and solar energy provider servicing southern California that provides a variety of options in order to help you find what best fits your needs. We deliver the tools, support and advice you need to make going solar simple. We handle everything from paperwork to maintenance, so all you have to worry about is what to do with the savings. We guarantee installation, parts and maintenance for every job. Your satisfaction is our top priority and we’ll be here for you through every step of your solar and roofing journey. Ready to talk to our team? Please call us today!
"We were in the market for a solar system from a company that was reliable and we could trust. After doing lots of research we asked Sunlux to be our solar provider. They were very honest with their prices (they were on one of the lowest) and their customer service has been excellent? Since we did not know a lot about solar systems, they educated us to be smart consumers and gave us options and choices that met our needs. We can truly say, we are very happy with Sunlux and would recommend them to others as well."
Kevin B on February 2020
Sunlux is a roofing and solar energy provider servicing southern California that provides a variety of options in order to help you find what best fits your needs. We deliver the tools, support and advice you need to make going solar simple. We handle everything from paperwork to maintenance, so all you have to worry about is what to do with the savings. We guarantee installation, parts and maintenance for every job. Your satisfaction is our top priority and we’ll be here for you through every step of your solar and roofing journey. Ready to talk to our team? Please call us today!
"We were in the market for a solar system from a company that was reliable and we could trust. After doing lots of research we asked Sunlux to be our solar provider. They were very honest with their prices (they were on one of the lowest) and their customer service has been excellent? Since we did not know a lot about solar systems, they educated us to be smart consumers and gave us options and choices that met our needs. We can truly say, we are very happy with Sunlux and would recommend them to others as well."
Kevin B on February 2020

All Four Seasons AC & Heating
All Four Seasons AC & Heating
Established in 2000, All Four Seasons has distinguished itself as a commercial, residential and industrial air conditioning and heating industry. As a family owned and operated company, fully licensed, bonded and insured, we strive to always exceed the expectations of our customers through integrity-based service and a high moral work ethic. Honesty, integrity and customer satisfaction are the foundations upon which we operate. All of our employees and technicians are handpicked and trained to the highest level of expertise and professionalism. In addition, we are EPA and OSHA certified. We certainly understand that you have many choices in HVAC service solutions, and we invite you to experience the All Four Seasons difference. From the most complex installations, to routine service and maintenance, you deserve to be comfortable at home or work, and All Four Seasons is there for you all year round. Give us a call today.
"On time; thorough; friendly; communicated with me frequently before my appointment. Definitely recommend them and i will use them in the future."
Mark L on December 2024
Established in 2000, All Four Seasons has distinguished itself as a commercial, residential and industrial air conditioning and heating industry. As a family owned and operated company, fully licensed, bonded and insured, we strive to always exceed the expectations of our customers through integrity-based service and a high moral work ethic. Honesty, integrity and customer satisfaction are the foundations upon which we operate. All of our employees and technicians are handpicked and trained to the highest level of expertise and professionalism. In addition, we are EPA and OSHA certified. We certainly understand that you have many choices in HVAC service solutions, and we invite you to experience the All Four Seasons difference. From the most complex installations, to routine service and maintenance, you deserve to be comfortable at home or work, and All Four Seasons is there for you all year round. Give us a call today.
"On time; thorough; friendly; communicated with me frequently before my appointment. Definitely recommend them and i will use them in the future."
Mark L on December 2024
Joe Sepe Heating & Air Conditioning
Joe Sepe Heating & Air Conditioning
With over 33 years of experience in the HVAC trade, Joe Sepe Heating and Air Conditioning has been proudly serving the San Fernando Valley and most of Ventura County. We specialize in residential and light commercial. Family owned and operated we are fully licensed, insured and bonded. Our technicians are certified to repair, service, and install all brands of Heating and Air Conditioning Equipment.
"My AC stopped working in the middle of the summer during the 100 plus degree valley heat. I called multiple companies and nobody could come for days. I called Joe Sepe Heating & Air Conditioning and all their techs were booked but the owner Joe was so nice that he came himself due the urgency. He was professional, honest, knowledgeable and friendly. Replaced the part on the condenser for a reasonable price and even gave me tips to prevent future issues. Thanks Joe!"
Jon D on December 2020
With over 33 years of experience in the HVAC trade, Joe Sepe Heating and Air Conditioning has been proudly serving the San Fernando Valley and most of Ventura County. We specialize in residential and light commercial. Family owned and operated we are fully licensed, insured and bonded. Our technicians are certified to repair, service, and install all brands of Heating and Air Conditioning Equipment.
"My AC stopped working in the middle of the summer during the 100 plus degree valley heat. I called multiple companies and nobody could come for days. I called Joe Sepe Heating & Air Conditioning and all their techs were booked but the owner Joe was so nice that he came himself due the urgency. He was professional, honest, knowledgeable and friendly. Replaced the part on the condenser for a reasonable price and even gave me tips to prevent future issues. Thanks Joe!"
Jon D on December 2020

HERS Rater LA/HouseSmart Green Solutions
HERS Rater LA/HouseSmart Green Solutions
HERS Rater LA provides quick, efficient and reasonably priced HERS (Home Energy Rating System [Title-24] field verifications for heating, ventilating and air conditioning (HVAC) systems in both residences and light commercial buildings. HERS Rater LA is certified to perform field verifications on new construction and additions. We also provide Air Balancing for new and redesigned duct systems in residential and commercial buildings.
"Dav is clearly an EXPERT in what he does. He imparted a TON of valuable information and knowledge to my husband and I both DURING our Home Energy Audit, as well as in the report which we opted to have him do. This information is going to be a superb guide as we prioritize & move forward with home improvement projects that will increase our home's efficiency, conserve energy, etc."
Dana B on May 2019
HERS Rater LA provides quick, efficient and reasonably priced HERS (Home Energy Rating System [Title-24] field verifications for heating, ventilating and air conditioning (HVAC) systems in both residences and light commercial buildings. HERS Rater LA is certified to perform field verifications on new construction and additions. We also provide Air Balancing for new and redesigned duct systems in residential and commercial buildings.
"Dav is clearly an EXPERT in what he does. He imparted a TON of valuable information and knowledge to my husband and I both DURING our Home Energy Audit, as well as in the report which we opted to have him do. This information is going to be a superb guide as we prioritize & move forward with home improvement projects that will increase our home's efficiency, conserve energy, etc."
Dana B on May 2019

Progressive Insulation & Windows
Progressive Insulation & Windows
Progressive Insulation & Windows was founded in Chatsworth in 1978 and has grown into one of Southern California's leading replacement window and insulation companies. We stand above many of our competitors because of our commitment to provide excellence in the installation of our products. Though we now have more than 70 trained installers and sales reps, we still do business in the same customer-centered tradition that propelled us to success in our early days. We are still a family-owned and operated business that truly cares about the customer experience before, during, and after installation of any of our products.
"This review is almost 2 years past due but because of family illness and death I kept putting it off and I greatly apologize for that. In March, 2020, I contacted Progressive after finding out Exodus, a company I hired to install a sliding door in the early 2000s was no longer in business and that the owner now works for Progressive. On a Sunday evening I had a problem closing the door by about 12 inches and left a frantic message on their voicemail. It probably seems silly but it was winter and I had an elderly parent living with me so I was very concerned with the cold even though I did everything I could to cover it up. Before end of business on Monday Progressive came out and fixed the (thankfully) very simple problem and asked for nothing in return. What more can anyone ask for? I will be forever grateful for their assistance."
alison p on February 2022
Progressive Insulation & Windows was founded in Chatsworth in 1978 and has grown into one of Southern California's leading replacement window and insulation companies. We stand above many of our competitors because of our commitment to provide excellence in the installation of our products. Though we now have more than 70 trained installers and sales reps, we still do business in the same customer-centered tradition that propelled us to success in our early days. We are still a family-owned and operated business that truly cares about the customer experience before, during, and after installation of any of our products.
"This review is almost 2 years past due but because of family illness and death I kept putting it off and I greatly apologize for that. In March, 2020, I contacted Progressive after finding out Exodus, a company I hired to install a sliding door in the early 2000s was no longer in business and that the owner now works for Progressive. On a Sunday evening I had a problem closing the door by about 12 inches and left a frantic message on their voicemail. It probably seems silly but it was winter and I had an elderly parent living with me so I was very concerned with the cold even though I did everything I could to cover it up. Before end of business on Monday Progressive came out and fixed the (thankfully) very simple problem and asked for nothing in return. What more can anyone ask for? I will be forever grateful for their assistance."
alison p on February 2022

CA Skyline Remodeling,Inc
CA Skyline Remodeling,Inc
Founded in 2006, California Skyline Remodeling is a locally owned and operated company. As a Licensed, Bonded and fully Insured renovation company- we provide you with the peace of mind and personal attention that you deserve. We know you’ve been dreaming up your remodeling project for quite some time, and we want to make sure you are satisfied with the results. Contact us today for expert advice a free consultation!
"We hired Joe and his team to handle our primary bathroom remodel and are very pleased only a few days into the work. While our bathroom is on the small side, in order to get what we want, it requires complete demolition and all appropriate re-configuration so it is a substantial project. In our initial consultation, Joe provided great space-efficient ideas and helpful suggestions for where to shop for the items we'd need. He has been extremely communicative and responsive which we greatly appreciate, as that can be hard to come by. So far his team has been quick and efficient and is meeting our expectations in terms of the daily schedule and progress. Attached is a before picture of one side of the bathroom, as well as a mid-way pic after the demolition. We will update this with a completion photo in just a few weeks!"
Ashley O on August 2021
Founded in 2006, California Skyline Remodeling is a locally owned and operated company. As a Licensed, Bonded and fully Insured renovation company- we provide you with the peace of mind and personal attention that you deserve. We know you’ve been dreaming up your remodeling project for quite some time, and we want to make sure you are satisfied with the results. Contact us today for expert advice a free consultation!
"We hired Joe and his team to handle our primary bathroom remodel and are very pleased only a few days into the work. While our bathroom is on the small side, in order to get what we want, it requires complete demolition and all appropriate re-configuration so it is a substantial project. In our initial consultation, Joe provided great space-efficient ideas and helpful suggestions for where to shop for the items we'd need. He has been extremely communicative and responsive which we greatly appreciate, as that can be hard to come by. So far his team has been quick and efficient and is meeting our expectations in terms of the daily schedule and progress. Attached is a before picture of one side of the bathroom, as well as a mid-way pic after the demolition. We will update this with a completion photo in just a few weeks!"
Ashley O on August 2021

Moore Solar & Green Construction
Moore Solar & Green Construction
Family owned and operated, Moore Solar is a company you can trust! We have been installing solar panels since the 1980s and have extensive experience in thermal solar as well as photovaltaic. We prepare and file all of the paperwork necessary for your application with utility companies and submit for any rebates available. Let our experts take care of everything from the inspections to getting final approval on running your system! Call us for a FREE site evaluation and discussion on how Solar can work best for you 323.221.1260. We will recommend an energy saving strategy and a solar system that best suits your needs and budget.
"The job went very well. Veronica and Jerry were a pleasure to deal with. They handled everything including the city permit and the extensive requirements of SCE."
Samuel B on October 2018
Family owned and operated, Moore Solar is a company you can trust! We have been installing solar panels since the 1980s and have extensive experience in thermal solar as well as photovaltaic. We prepare and file all of the paperwork necessary for your application with utility companies and submit for any rebates available. Let our experts take care of everything from the inspections to getting final approval on running your system! Call us for a FREE site evaluation and discussion on how Solar can work best for you 323.221.1260. We will recommend an energy saving strategy and a solar system that best suits your needs and budget.
"The job went very well. Veronica and Jerry were a pleasure to deal with. They handled everything including the city permit and the extensive requirements of SCE."
Samuel B on October 2018

NRG Clean Power
NRG Clean Power
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
The Oak View, 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.

Get a detailed breakdown of thermal imaging home inspection costs, including average prices, cost factors, and tips to help homeowners budget.
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A home energy audit is a detailed write-up of how to lower your utility bills and increase your comfort level. Find out if they’re worth the cost.

Home energy audits can identify ways to make your home more energy-efficient. Learn whether an energy audit is a good investment for your home.
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