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Avatar for Service Champions Heating & Air Conditioning

Service Champions Heating & Air Conditioning

4.71(
619
)
Approved Pro

Service Champions Heating & Air Conditioning

4.71(
619
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
2003 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.

"The technicians, Chris F, Tyler H and Christian C, were friendly and personable. Great job on my new water heater! Chris got me 18 month financing with no interest. I would definitely use them again!"

Cindy F on June 2025

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.

"The technicians, Chris F, Tyler H and Christian C, were friendly and personable. Great job on my new water heater! Chris got me 18 month financing with no interest. I would definitely use them again!"

Cindy F on June 2025


Avatar for Bell Brothers Plumbing Heating & Air

Bell Brothers Plumbing Heating & Air

4.66(
387
)
Approved Pro

Bell Brothers Plumbing Heating & Air

4.66(
387
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
1954 years of experience

We are locally owned and operated, and serving the Bay Area. Our focus is residential air conditioning, heating, Installation of HVAC systems and full-service plumbing. We love working with homeowners and helping to take care of their precious homes. We also keep busy doing light commercial service. Serving California since 1954, financing options available, We don't charge extra for Saturday service calls.

"Called this company for their $77 dollar, which they advertised with a flyer, for a tune-up and cleaning for my heating system. They are a Hayward company and I was told that our Castro Valley home was not in their service area. I bet if I called to buy a new heater they would be out in a day."

Gregory O on March 2023

We are locally owned and operated, and serving the Bay Area. Our focus is residential air conditioning, heating, Installation of HVAC systems and full-service plumbing. We love working with homeowners and helping to take care of their precious homes. We also keep busy doing light commercial service. Serving California since 1954, financing options available, We don't charge extra for Saturday service calls.

"Called this company for their $77 dollar, which they advertised with a flyer, for a tune-up and cleaning for my heating system. They are a Hayward company and I was told that our Castro Valley home was not in their service area. I bet if I called to buy a new heater they would be out in a day."

Gregory O on March 2023


Avatar for Posert Energy Consulting

Posert Energy Consulting

4.72(
44
)
Approved Pro

Posert Energy Consulting

4.72(
44
)
Approved Pro
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
2019 years of experience

At Posert Energy Consulting, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe we can find the sources of high energy bills within an hour or two and set you on a path towards lower energy costs and energy independence. We are committed to eliminating greenhouse gas sources from residences as much as possible which includes our experience that about 2/3rd of the homes we visit have gas line leaks! We are experts, and will always keep you educated about the work process. We look forward to earning your business!

"Pete is fantastic! He called back promptly -- on a holiday -- and fit us in within 24 hrs. He did a home electrical audit, showed us how to read/interpret the smart meter and PG&E website re electrical usage, performed troubleshooting, and narrowed down the problem. Now we can hire an electrician because we know what the issue is! Great guy with a great personality and excellent customer service. Five out of five stars!!!!"

Jennifer L on May 2024

At Posert Energy Consulting, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe we can find the sources of high energy bills within an hour or two and set you on a path towards lower energy costs and energy independence. We are committed to eliminating greenhouse gas sources from residences as much as possible which includes our experience that about 2/3rd of the homes we visit have gas line leaks! We are experts, and will always keep you educated about the work process. We look forward to earning your business!

"Pete is fantastic! He called back promptly -- on a holiday -- and fit us in within 24 hrs. He did a home electrical audit, showed us how to read/interpret the smart meter and PG&E website re electrical usage, performed troubleshooting, and narrowed down the problem. Now we can hire an electrician because we know what the issue is! Great guy with a great personality and excellent customer service. Five out of five stars!!!!"

Jennifer L on May 2024


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
2013 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 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
2000 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


Avatar for Enact Systems, Inc.

Enact Systems, Inc.

5.00(
1
)
Approved Pro

Enact Systems, Inc.

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2014 years of experience

Enact Systems Inc. is committed to excellence every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. We have been in business since 2014, and our accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of the interests of our customers and make their concerns the basis of our business.

"The service was very helpful in getting our solar and battery system connected to our home and the process was very smooth!"

mark c on May 2021

Enact Systems Inc. is committed to excellence every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. We have been in business since 2014, and our accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of the interests of our customers and make their concerns the basis of our business.

"The service was very helpful in getting our solar and battery system connected to our home and the process was very smooth!"

mark c on May 2021


Pinnacle Energy Solutions-Unlicensed Contractor

5.00(
1
)
Approved Pro

Pinnacle Energy Solutions-Unlicensed Contractor

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2017 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


B A Morrison

4.77(
79
)

B A Morrison

4.77(
79
)
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers

B.A. Morrison is a family-owned Heating, Ventilation, Air-Conditioning (HVAC) and General Construction company. We have been in business since 1990 and are fully insured and bonded. Our employees are experienced, trustworthy, and honest tradesmen. We are ready to meet your needs in a timely scheduled manner, to your satisfaction, and at a fair price. We offer free estimates for regularly scheduled maintenance of your HVAC equipment, new and replacement HVAC equipment installation, and your general construction needs. Please consider our service, installation, replacement, or home improvement and remodeling services the next time you have a need for your residential or commercial building.

B.A. Morrison is a family-owned Heating, Ventilation, Air-Conditioning (HVAC) and General Construction company. We have been in business since 1990 and are fully insured and bonded. Our employees are experienced, trustworthy, and honest tradesmen. We are ready to meet your needs in a timely scheduled manner, to your satisfaction, and at a fair price. We offer free estimates for regularly scheduled maintenance of your HVAC equipment, new and replacement HVAC equipment installation, and your general construction needs. Please consider our service, installation, replacement, or home improvement and remodeling services the next time you have a need for your residential or commercial building.


Avatar for Landmark Energy Upgrades

Landmark Energy Upgrades

4.89(
56
)

Landmark Energy Upgrades

4.89(
56
)
Customers say: Super punctual
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

Whether your project is a new construction, custom built home, an existing remodel, or an energy efficient upgrade, Landmark Construction has the industry experience and skilled staff to make your construction project a success. Our goal is to save you money through energy-efficient construction. Landmark Construction is California’s premier Air-Conditioning Contractor and Heating Contractor. Along with HVAC contracting we can better regulate your home’s temperature with new insulation and a new roof. Landmark Construction doesn’t stop at just energy upgrades. When it comes to renovations of existing homes, we pride ourselves in the ability to maintain your home’s charm and style with solutions for every kind of interior need from tile, drywall accents and wainscoting detail, cabinetry and countertop selection, to redesigning entire interior floor plans. Our network of interior designers can help you get just the look you envisioned from your remodeling or new construction project. We proudly serve Southern California including Bel Air, San Marino, Malibu, Calabasas, Beverly Hills, Century City, Encino, Brentwood and everywhere in between! When clients want to build it strong, build it beautiful, they build it Landmark! Do not hesitate to contact us regarding your next general construction project in Southern California. We look forward to providing you with a free, no obligation consultation today!

"Ezra and Charles are very friendly and personable. That is, when they want to take your money. What good is a 12-year warranty if you start ignoring your customers at 2 years. I needed my HVAC replaced. Because the HVAC sits on my roof, I decided to redo the roof too. Ezra and Charles came out and were really friendly so I immediately had a good impression of them. Even though it would’ve been cheaper to go with a roofer and a separate HVAC company, I decided to go with Landmark Construction Crew, aka Landmark Energy Upgrades. I figured it would be a more seamless process for one company to do both. I got this done in December of 2016. The thing with a roof is that you don’t know if it’s a good job or not until it rains so I waited to write a review. Around January 2018 ( a little over a year later ) we got some much needed rain but unfortunately, I had a leak coming from one of my vents. I emailed Ezra and he sent out a roofer. The roofer came, looked at the vent, jumped up on the roof for ten minutes and said he was done. Months later, it rained again, it leaked again, I emailed Ezra again. I decided to take a closer look at the vent and noticed that there was sunlight in the ductwork. I figured sunlight equals gap somewhere. When the roofer came, I told him and he said it’s nothing, probably just a reflection, without even taking a look. Then the roofer tells me that the next time there is a leak, I need to call the HVAC guy because it’s not a roof problem. I couldn’t believe it so I told him that HIS company IS the HVAC guy!! I used one company to do the roof and the HVAC so there is NOBODY else to blame. So, he jumps back on the roof and was done and gone in 10 minutes. About a month goes by and the rain is back and so is my leak. It’s 2019 so it rained a lot this year. Good for California, bad for me. So, I emailed Ezra again. After a few weeks, no reply. So, I email him again with pictures, a few more weeks go by and no reply. So, I call him and he picked up the phone. He sounded surprised to hear from me (probably didn’t recognize my phone number) and I start telling him about the leak. He said he didn’t get my emails but just text him my address and he’ll send somebody. A couple of weeks goes by and nothing. So, I text him again and after weeks and weeks of waiting, no reply. I’ve emailed, called, and texted so, at this point, it’s very obvious he’s avoiding me. If you are looking for a friendly company that is willing to take your hard-earned cash then Landmark is for you. But if you’re looking for a company that is accountable for their work then look elsewhere. I know I am."

Tony T on March 2019

Whether your project is a new construction, custom built home, an existing remodel, or an energy efficient upgrade, Landmark Construction has the industry experience and skilled staff to make your construction project a success. Our goal is to save you money through energy-efficient construction. Landmark Construction is California’s premier Air-Conditioning Contractor and Heating Contractor. Along with HVAC contracting we can better regulate your home’s temperature with new insulation and a new roof. Landmark Construction doesn’t stop at just energy upgrades. When it comes to renovations of existing homes, we pride ourselves in the ability to maintain your home’s charm and style with solutions for every kind of interior need from tile, drywall accents and wainscoting detail, cabinetry and countertop selection, to redesigning entire interior floor plans. Our network of interior designers can help you get just the look you envisioned from your remodeling or new construction project. We proudly serve Southern California including Bel Air, San Marino, Malibu, Calabasas, Beverly Hills, Century City, Encino, Brentwood and everywhere in between! When clients want to build it strong, build it beautiful, they build it Landmark! Do not hesitate to contact us regarding your next general construction project in Southern California. We look forward to providing you with a free, no obligation consultation today!

"Ezra and Charles are very friendly and personable. That is, when they want to take your money. What good is a 12-year warranty if you start ignoring your customers at 2 years. I needed my HVAC replaced. Because the HVAC sits on my roof, I decided to redo the roof too. Ezra and Charles came out and were really friendly so I immediately had a good impression of them. Even though it would’ve been cheaper to go with a roofer and a separate HVAC company, I decided to go with Landmark Construction Crew, aka Landmark Energy Upgrades. I figured it would be a more seamless process for one company to do both. I got this done in December of 2016. The thing with a roof is that you don’t know if it’s a good job or not until it rains so I waited to write a review. Around January 2018 ( a little over a year later ) we got some much needed rain but unfortunately, I had a leak coming from one of my vents. I emailed Ezra and he sent out a roofer. The roofer came, looked at the vent, jumped up on the roof for ten minutes and said he was done. Months later, it rained again, it leaked again, I emailed Ezra again. I decided to take a closer look at the vent and noticed that there was sunlight in the ductwork. I figured sunlight equals gap somewhere. When the roofer came, I told him and he said it’s nothing, probably just a reflection, without even taking a look. Then the roofer tells me that the next time there is a leak, I need to call the HVAC guy because it’s not a roof problem. I couldn’t believe it so I told him that HIS company IS the HVAC guy!! I used one company to do the roof and the HVAC so there is NOBODY else to blame. So, he jumps back on the roof and was done and gone in 10 minutes. About a month goes by and the rain is back and so is my leak. It’s 2019 so it rained a lot this year. Good for California, bad for me. So, I emailed Ezra again. After a few weeks, no reply. So, I email him again with pictures, a few more weeks go by and no reply. So, I call him and he picked up the phone. He sounded surprised to hear from me (probably didn’t recognize my phone number) and I start telling him about the leak. He said he didn’t get my emails but just text him my address and he’ll send somebody. A couple of weeks goes by and nothing. So, I text him again and after weeks and weeks of waiting, no reply. I’ve emailed, called, and texted so, at this point, it’s very obvious he’s avoiding me. If you are looking for a friendly company that is willing to take your hard-earned cash then Landmark is for you. But if you’re looking for a company that is accountable for their work then look elsewhere. I know I am."

Tony T on March 2019


Avatar for Synergy Co

Synergy Co

4.66(
107
)

Synergy Co

4.66(
107
)
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers

Synergy Enterprises is a licensed, bonded and certified contractor for environmental hazard abatement and air testing. For 23 years our goal has been to provide both residential and business clients a partner qualified to handle the dirty jobs in an expert and seamless fashion - asbestos removal, mold abatement, the removal of lead-based paint the cleanup of rodent droppings that pose hazards. We also handle pre-remodel demolition and insulation services. We: provide free, competitive and timely estimates based on an onsite inspection.

"They emoved an asbestos-laden vinyl kitchen floor. They were prompt, they were professional and quick. It wasn't a big job. I would recommend them to anyone"

Gabriel B on August 2018

Synergy Enterprises is a licensed, bonded and certified contractor for environmental hazard abatement and air testing. For 23 years our goal has been to provide both residential and business clients a partner qualified to handle the dirty jobs in an expert and seamless fashion - asbestos removal, mold abatement, the removal of lead-based paint the cleanup of rodent droppings that pose hazards. We also handle pre-remodel demolition and insulation services. We: provide free, competitive and timely estimates based on an onsite inspection.

"They emoved an asbestos-laden vinyl kitchen floor. They were prompt, they were professional and quick. It wasn't a big job. I would recommend them to anyone"

Gabriel B on August 2018

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Showing 1-10 of 103
Energy Efficiency Auditing questions, answered by experts

Yes, most audits include a report with prioritized recommendations for improving energy efficiency. Confirm with your auditor.

The extra insulation helps reduce energy costs by minimizing drafts and temperature exchange between indoors and outdoors.

The effect a gas fireplace has on your gas bill will depend on how often you use it, the size of the rooms you’re heating with it, and the BTUs of the fireplace itself, but generally speaking, it should only cost a few cents an hour to run it when it’s on. It will consume minimal energy when it’s “off” if you have a pilot light running constantly, but some modern gas fireplaces don’t require a constant pilot light.

Blower door tests are measured in a few different ways, but the most popular are air changes per hour (ACH) and cubic feet of air (CFM) moving through the house per hour. A good ACH score is less than 2ACH, but 1ACH is better. This means the house experiences a total air change within 60 minutes (for 1ACH). For 2ACH, there’s a complete change every 30 minutes, and so on. CFM scores are similar in that a lower score means less air change, and therefore less leakage.

Dryers are designed to use as little electricity as possible, but power is still required to run the motor that turns the drum and to heat an element that pumps hot air. Eco devices are available and may lead to cost savings in the long term, but you should run the figures before committing to an eco-friendly device as they are often much more expensive to purchase.

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