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Avatar for Service Champions Heating & Air Conditioning

Service Champions Heating & Air Conditioning

4.71(
622
)
Approved Pro

Service Champions Heating & Air Conditioning

4.71(
622
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
23 years of experience

Service Champions is the leading heating and air conditioning contractor in Northern California servicing homeowners in East Bay, South Bay and Sacramento areas. We can make your home more comfortable and improve the quality of air you and your family breathe. We specialize in maintenance, repair and sales of all brands of air conditioners and heaters, and are experts in indoor air quality improvement through filtration, duct replacement, insulation and hospital grade UV lights. All the air conditioners we install have the new environmentally friendly refrigerant that does not damage the ozone. We also are huge proponents of super high efficient equipment, such as 95% efficient furnaces. This equipment saves homeowners a tremendous amount of money on their utility bills.

"They are prompt, honest. all tech people well knowledgeable and they follow all maintenance procedures step by step. I highly recommend. Them."

Jafar A on January 2026

Service Champions is the leading heating and air conditioning contractor in Northern California servicing homeowners in East Bay, South Bay and Sacramento areas. We can make your home more comfortable and improve the quality of air you and your family breathe. We specialize in maintenance, repair and sales of all brands of air conditioners and heaters, and are experts in indoor air quality improvement through filtration, duct replacement, insulation and hospital grade UV lights. All the air conditioners we install have the new environmentally friendly refrigerant that does not damage the ozone. We also are huge proponents of super high efficient equipment, such as 95% efficient furnaces. This equipment saves homeowners a tremendous amount of money on their utility bills.

"They are prompt, honest. all tech people well knowledgeable and they follow all maintenance procedures step by step. I highly recommend. Them."

Jafar A on January 2026


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 Prosper Construction Development, Inc.

Prosper Construction Development, Inc.

4.88(
38
)
Approved Pro

Prosper Construction Development, Inc.

4.88(
38
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
13 years of experience

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


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


Avatar for Apollo Energies

Apollo Energies

4.25(
2
)
Approved Pro

Apollo Energies

4.25(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
26 years of experience

We are independent energy consultants who reduced our own energy use and saved several hundreds of dollars monthly on our utility bill and made our homes more comfortable and now are helping others achieve similar results. We are not contractors. We do not get paid based on the recommendations we make or the recommendations you choose to do. We want to provide you with what you need to do, explain why you need to do it so that you have all the information you need to make an informed decision. Once you've made the decision on what you want to do, after having all the information necessary to make an informed decision, we will help you implement your decision. We have vetted many home performance contractors and we know they will do the quality work you want and deserve. There are PGE rebates available and financing available that we will show you how to leverage to your advantage. So give us a try. You'll be glad you did.

"Apollo did a fine job assessing my townhomes energy needs. The energy report covered what I needed."

Motiejus R on June 2019

We are independent energy consultants who reduced our own energy use and saved several hundreds of dollars monthly on our utility bill and made our homes more comfortable and now are helping others achieve similar results. We are not contractors. We do not get paid based on the recommendations we make or the recommendations you choose to do. We want to provide you with what you need to do, explain why you need to do it so that you have all the information you need to make an informed decision. Once you've made the decision on what you want to do, after having all the information necessary to make an informed decision, we will help you implement your decision. We have vetted many home performance contractors and we know they will do the quality work you want and deserve. There are PGE rebates available and financing available that we will show you how to leverage to your advantage. So give us a try. You'll be glad you did.

"Apollo did a fine job assessing my townhomes energy needs. The energy report covered what I needed."

Motiejus R on June 2019


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 Gentec Services Inc/UTMATE POWERS INC

Gentec Services Inc/UTMATE POWERS INC

4.89(
105
)

Gentec Services Inc/UTMATE POWERS INC

4.89(
105
)
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers

With over a decade of service, Gentec Services, Inc. is the Bay Area’s most trusted electrician service provider. Thanks to our team’s rare combination of technical expertise, craftsmanship, and superior customer service, you’ll find our Livermore based technicians helping customers throughout the Bay Area.

"Kris arrived an hour early and did a quick and efficient job. Well Done!!"

Nathan B on August 2021

With over a decade of service, Gentec Services, Inc. is the Bay Area’s most trusted electrician service provider. Thanks to our team’s rare combination of technical expertise, craftsmanship, and superior customer service, you’ll find our Livermore based technicians helping customers throughout the Bay Area.

"Kris arrived an hour early and did a quick and efficient job. Well Done!!"

Nathan B 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


Bright Home Energy Services

5.00(
8
)

Bright Home Energy Services

5.00(
8
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Bright Home Energy Services is a green energy contractor proudly serving the greater Sacramento area. We specialize in energy efficient home improvement projects and whole home design including asphalt roofing, metal roofing, ventilation, solar panels, heating and air conditioning repair and replacment, insulation, window replacement and water heating/plumbing repair and replacement. If you are wondering how you can save more in your home, we also offer a home energy audit which will take a look at everything with energy savings and home improvement in mind. We have many options and the tools to get your job done right the first time and within your budget. All inspections and replacement consultations are FREE, just contact us and find out how we can help today.

"There Services were excellent. They kept in me in the loop. There was a glitch on the equipment on the first day of installation, but it was resolved on the next day. Now, I am feeling much cooler. I recommend this business for your cooling and heating needs. Thank you"

William D on August 2022

Bright Home Energy Services is a green energy contractor proudly serving the greater Sacramento area. We specialize in energy efficient home improvement projects and whole home design including asphalt roofing, metal roofing, ventilation, solar panels, heating and air conditioning repair and replacment, insulation, window replacement and water heating/plumbing repair and replacement. If you are wondering how you can save more in your home, we also offer a home energy audit which will take a look at everything with energy savings and home improvement in mind. We have many options and the tools to get your job done right the first time and within your budget. All inspections and replacement consultations are FREE, just contact us and find out how we can help today.

"There Services were excellent. They kept in me in the loop. There was a glitch on the equipment on the first day of installation, but it was resolved on the next day. Now, I am feeling much cooler. I recommend this business for your cooling and heating needs. Thank you"

William D on August 2022

Showing 1-10 of 43
Energy Efficiency Auditing questions, answered by experts

If you want a new boiler that’s going to help lower your fuel bills, you should buy one that has a high energy-efficiency rating. For example, a boiler that is rated “A” uses at least 90% of the energy created by the boiler. And in order to enjoy the best performance, it’s important to have it installed properly by a highly-rated tech.

Generator size requirements vary wildly among properties, but typical generator sizes are listed below based on home square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14kW

  • 2,500 sq ft: 12–16kW

  • 3,000 sq ft: 16–20kW+

Unfortunately, home square footage isn’t always a good indicator of generator size requirements. Instead, you should call in a professional to discuss which items in your home you’d like to run via your generator. They can calculate peak and average consumption for those items and then size your generator appropriately for optimal performance.

There is no blanket figure for a residential home’s electrical load, since load varies by the size of the home, how many appliances are used, and the efficiency of their electrical systems. Typically, however, it’s safe to assume 40 to 60 amps is the average electrical load of a residential home. 

The answer is a resounding yes, as dishwashers save significant water and energy compared to washing dishes by hand. The difference is so drastic in fact that those who use energy-efficient dishwashers can expect savings of over $450 per year. This is because dishwashers use less water, they wash at a higher temperature than a hand rinse, and you don’t need to rinse them after washing. New dishwashers use around 4 gallons per load, whereas washing by hand can use up to 2 gallons per minute.

Yes, skylights can affect a home’s energy efficiency, either positively or negatively. Properly installed, energy-efficient skylights with Low-E coatings, double glazing, and UV-blocking glass can help regulate indoor temperatures and reduce heating and cooling costs. However, poorly insulated or older skylights can contribute to heat loss in winter and excess heat gain in summer, lowering overall energy efficiency.

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