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Avatar for Santiago Electric, Inc.

Santiago Electric, Inc.

4.86(
21
)
Approved Pro

Santiago Electric, Inc.

4.86(
21
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
5 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

"I had them put in a Tesla charging outlet and replace some fluorescent lights in my kitchen. They gave me a fair quote and did a good. When their guys were running late to the time they said they would arrive they called me and gave me a new arrival time. Professional company with great customer service. I worked with Hector, he is very good. I recommend them."

Ramiro C on April 2023

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

"I had them put in a Tesla charging outlet and replace some fluorescent lights in my kitchen. They gave me a fair quote and did a good. When their guys were running late to the time they said they would arrive they called me and gave me a new arrival time. Professional company with great customer service. I worked with Hector, he is very good. I recommend them."

Ramiro C on April 2023


Avatar for Go-In All Electric

Go-In All Electric

5.00(
2
)
Approved Pro

Go-In All Electric

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 years of experience

Welcome to www.Go-InAllElectric.com and www.Go-inAllSolar.com Our services help cut your home gas and electric bills 30-70% Services include a free, NO COST home energy audit and consultation. We then work with fully licensed solar and installation contractors, as well as AC and other Electrical appliance installers and contractors and even referrals to free state and federal home energy upgrade programs, to help lower your utility bills. We are known to pay exquisite attention to detail while making customer satisfaction our top priority, When completed. WE WILL REDUCE YOUR GAS & ELECTRIC BILL BY 30% TO 70%, includiing a 25%-45% IMMEDIATELY savings TODAY.. We take pride in the quality of work and customer satisfaction that we give each and every customer! So, call us today to learn more about how we can help you!

"Darren Holden its great he care about his customers."

Eugenia E on February 2023

Welcome to www.Go-InAllElectric.com and www.Go-inAllSolar.com Our services help cut your home gas and electric bills 30-70% Services include a free, NO COST home energy audit and consultation. We then work with fully licensed solar and installation contractors, as well as AC and other Electrical appliance installers and contractors and even referrals to free state and federal home energy upgrade programs, to help lower your utility bills. We are known to pay exquisite attention to detail while making customer satisfaction our top priority, When completed. WE WILL REDUCE YOUR GAS & ELECTRIC BILL BY 30% TO 70%, includiing a 25%-45% IMMEDIATELY savings TODAY.. We take pride in the quality of work and customer satisfaction that we give each and every customer! So, call us today to learn more about how we can help you!

"Darren Holden its great he care about his customers."

Eugenia E on February 2023


Pinnacle Energy Solutions

5.00(
1
)
Approved Pro

Pinnacle Energy Solutions

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
9 years of experience

Pinnacle Energy Solutions has become a staple of professionalism and quality work in San Ramon for years. With decades of experience, there is no job too large or small. Call today to schedule an appointment!

"The thing I appreciate with Steven is, there is no sales pitch! He paired us with best options we have and he always gets back and answers any questions we have to me! Just great!"

Greg N on August 2021

Pinnacle Energy Solutions has become a staple of professionalism and quality work in San Ramon for years. With decades of experience, there is no job too large or small. Call today to schedule an appointment!

"The thing I appreciate with Steven is, there is no sales pitch! He paired us with best options we have and he always gets back and answers any questions we have to me! Just great!"

Greg N on August 2021


Avatar for NRG Clean Power

NRG Clean Power

4.58(
43
)

NRG Clean Power

4.58(
43
)
Customers say: Terrific value
26 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


Mid-State Solar

5.00(
9
)

Mid-State Solar

5.00(
9
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Mid-State Solar was established in 1977 and has specialized in solar energy since its founding. Under the same family ownership, we’ve provided innovative solutions for solar thermal and solar electric (PV) applications to thousands of satisfied customers for over thirty-five years. Styles and products may have changed through the decades, but one thing remains the same – our dedication to those we serve. Whether large or small, we strive for excellence on every job and work closely with you to create a solar energy system uniquely designed for your setting and goals.

"Very smoothly. This is the company to go with."

Larry H on November 2018

Mid-State Solar was established in 1977 and has specialized in solar energy since its founding. Under the same family ownership, we’ve provided innovative solutions for solar thermal and solar electric (PV) applications to thousands of satisfied customers for over thirty-five years. Styles and products may have changed through the decades, but one thing remains the same – our dedication to those we serve. Whether large or small, we strive for excellence on every job and work closely with you to create a solar energy system uniquely designed for your setting and goals.

"Very smoothly. This is the company to go with."

Larry H on November 2018


Avatar for SunPower by The Solar Quote

SunPower by The Solar Quote

5.00(
6
)

SunPower by The Solar Quote

5.00(
6
)
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

SunPower by The Solar Quote is a leader in high-quality energy services. We currently service Northern CA, we make clean energy affordable to homeowners at a lower cost than they pay for energy generated by burning fossil fuels like coal. We provide the highest quality panels at the lowest possible price. Our approach is to install the highest efficiency solar panels and combine them with top-rated local installers at the lowest possible cost to homeowners. We are making the switch to solar simple for our customers while keeping local high-quality installers busy. We've revolutionized the way homeowners use energy by giving customers a cleaner, more affordable alternative to their monthly utility bill.

"SERVICES PROVIDED WAS EXCEPTIONAL. THE SALES AGENT, DEANN YOUNG WAS EXCEPTIONALLY KNOWLEDGEABLE AND TOOK TIME TO EXPLAIN THE WHOLE PROCESS . THE PANELS LOOK GREAT ON MY ROOF, THE INSTALLATION WAS NEATLY DONE AND COMPLETED IN ONE DAY. MOSTLY IMPORTANTLY, DEANN YOUNG WAS ALWAYS AVAILABLE WHENEVER I HAD QUESTIONS. I WOULD RECOMMEND SUNPOWER BY THE SOLAR QUOTE ANYTIME ANYDAY. FIDELIS OGWU"

FIDELIS O on December 2020

SunPower by The Solar Quote is a leader in high-quality energy services. We currently service Northern CA, we make clean energy affordable to homeowners at a lower cost than they pay for energy generated by burning fossil fuels like coal. We provide the highest quality panels at the lowest possible price. Our approach is to install the highest efficiency solar panels and combine them with top-rated local installers at the lowest possible cost to homeowners. We are making the switch to solar simple for our customers while keeping local high-quality installers busy. We've revolutionized the way homeowners use energy by giving customers a cleaner, more affordable alternative to their monthly utility bill.

"SERVICES PROVIDED WAS EXCEPTIONAL. THE SALES AGENT, DEANN YOUNG WAS EXCEPTIONALLY KNOWLEDGEABLE AND TOOK TIME TO EXPLAIN THE WHOLE PROCESS . THE PANELS LOOK GREAT ON MY ROOF, THE INSTALLATION WAS NEATLY DONE AND COMPLETED IN ONE DAY. MOSTLY IMPORTANTLY, DEANN YOUNG WAS ALWAYS AVAILABLE WHENEVER I HAD QUESTIONS. I WOULD RECOMMEND SUNPOWER BY THE SOLAR QUOTE ANYTIME ANYDAY. FIDELIS OGWU"

FIDELIS O on December 2020


J H Simpson Heating & Air Conditioning

5.00(
4
)

J H Simpson Heating & Air Conditioning

5.00(
4
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Since 1944 J. H. Simpson Company Inc has been providing excellence in service and installation work for residential, commercial, industrial and government projects. From customized shop fabrication to designing and engineering, J. H. Simpson Company Inc has the knowledge to solve even the most difficult problems. J. H. Simpson Company Inc offers the best in equipment, personnel, service and safety... Plus a reputation of integrity and dependability that insures your complete satisfaction.

Since 1944 J. H. Simpson Company Inc has been providing excellence in service and installation work for residential, commercial, industrial and government projects. From customized shop fabrication to designing and engineering, J. H. Simpson Company Inc has the knowledge to solve even the most difficult problems. J. H. Simpson Company Inc offers the best in equipment, personnel, service and safety... Plus a reputation of integrity and dependability that insures your complete satisfaction.


Green Home Solutions

5.00(
1
)

Green Home Solutions

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

Green Home Solutions, A Grupe Company is a BPI accredited Home Performance Contractor. We specialize in Home Energy Assessments and retrofits, everything from insulation to solar electric! Visit our website and discover the world of energy efficiency. "Pay for the energy you use, not the energy you lose"

Green Home Solutions, A Grupe Company is a BPI accredited Home Performance Contractor. We specialize in Home Energy Assessments and retrofits, everything from insulation to solar electric! Visit our website and discover the world of energy efficiency. "Pay for the energy you use, not the energy you lose"


Avatar for Greenhart

Greenhart

5.00(
1
)

Greenhart

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

Greenhart was established in 2013 to provide a unique service to Central California residents. Our mission is simple: do whatever it takes to provide the most efficient and comfortable homes to the community members we care so much about. Over the years we have completed hundreds of home efficiency and renovation projects focusing on educating homeowners while delivering the highest level of products and customer service. Our goal is to get your home operating as efficiently as possible and get you as much money back in your pocket as we can.

Greenhart was established in 2013 to provide a unique service to Central California residents. Our mission is simple: do whatever it takes to provide the most efficient and comfortable homes to the community members we care so much about. Over the years we have completed hundreds of home efficiency and renovation projects focusing on educating homeowners while delivering the highest level of products and customer service. Our goal is to get your home operating as efficiently as possible and get you as much money back in your pocket as we can.


Avatar for GreenerSolutions

GreenerSolutions

5.00(
1
)

GreenerSolutions

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

The company was originally founded in 1981 by Hayden Logan, Jr. After years of success in building development the company was passed on to his son Hayden Logan III, the current owner. With youthful inspiration from new leadership, our focus changed to energy efficiency homes and the company became Greener Solutions Inc., a Heating and Air Conditioning Contractor. Our completed projects have defined our dedication, quality, drive and commitment to the Central Valley homeowners. Our knowledge of construction, planning, management, and customer service makes us well trusted by the community. Specializing in heating and air conditioning, as well as energy efficient windows, roofing and attic insulation, we are your ideal provider for an energy efficient home.

The company was originally founded in 1981 by Hayden Logan, Jr. After years of success in building development the company was passed on to his son Hayden Logan III, the current owner. With youthful inspiration from new leadership, our focus changed to energy efficiency homes and the company became Greener Solutions Inc., a Heating and Air Conditioning Contractor. Our completed projects have defined our dedication, quality, drive and commitment to the Central Valley homeowners. Our knowledge of construction, planning, management, and customer service makes us well trusted by the community. Specializing in heating and air conditioning, as well as energy efficient windows, roofing and attic insulation, we are your ideal provider for an energy efficient home.

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Energy Efficiency Auditing questions, answered by experts

A couple of the best ways to find a reputable energy auditor is by determining whether they are HEP-certified by the Building Performance Institute (BPI). This certification will help you narrow down your list of professionals to the most qualified pros with the most relevant experience. 

You can also choose from the Department of Energy’s certified list of energy auditors or Angi’s contractor licensing tool to find pros in your area.

There are several signs that your house might have poor ventilation, including lingering odors, condensation on your windows, or mold and mildew. Your home may also feel stale and stuffy, or you might have trouble maintaining a comfortable temperature in your home. On top of that, you might develop allergy symptoms, such as sneezing, coughing, or headaches.

Leaving lights on raises the electric bill, but not as much as having high-wattage light bulbs. The best way to save on electric costs is to swap your light bulbs to LED or CFL bulbs that use far fewer watts. You can also use smart lights and light switches to control usage via a smartphone or voice-controlled device.

Yes, Tesla Powerwalls are worth the upfront costs, as you can recoup your investment within six to eight years. Plus, they provide peace of mind that you'll have power during a power outage, and, depending on the system you install, you can become energy-independent. While they may be more expensive than other solar power systems, they offer higher battery capacity and lifespan.

Upgrade to double-glazed glass or apply energy-efficient coatings to reduce heat loss and utility costs.

The Hilmar, 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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