We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.
"Junior was totally on top of things. Installers were on time, polite and very efficient. I was given 5 quotes from other companies but General Air Technology was BY FAR the lowest quote."
nadine D on January 2022
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.
"Junior was totally on top of things. Installers were on time, polite and very efficient. I was given 5 quotes from other companies but General Air Technology was BY FAR the lowest quote."
nadine D on January 2022
With over 30 years of experience, Perfect Star Heating, Cooling, & Electrical is a locally owned and operated family business serving Alameda & Contra Costa County. We service all makes and models, offering top-quality comfort and energy efficiency solutions. Specializing in Furnace/Heating, Air Conditioning, and Ductless Mini-Split installation, we also provide repair and maintenance for Central HVAC systems, Ductwork, Indoor Air Quality, Electrical Repair & Installation, and Solar Installation. Free estimates are available for HVAC system replacement, new installations, and solar solutions. As a Lennox Premier Dealer, Daikin Comfort Pro, and WellAir Elite dealer, we are Diamond Certified, hold an A+ BBB Rating, and have been voted “The Best Heating & Air Company” and “The Most Community-Minded Company” by The Press in Brentwood, CA for two years. We are also SFGATE’s Best of the Bay Area Heating & A/C Service provider.
"5 star service!!! A crew of 3 arrived, Brandon H, Nestor C and Anthony A. They did an excellent job and very hard workers. I am thrilled with their professionalism, hot tips and work ethic. Will definitely recommend them!! Thank you again!!!"
Lisa V on May 2025
With over 30 years of experience, Perfect Star Heating, Cooling, & Electrical is a locally owned and operated family business serving Alameda & Contra Costa County. We service all makes and models, offering top-quality comfort and energy efficiency solutions. Specializing in Furnace/Heating, Air Conditioning, and Ductless Mini-Split installation, we also provide repair and maintenance for Central HVAC systems, Ductwork, Indoor Air Quality, Electrical Repair & Installation, and Solar Installation. Free estimates are available for HVAC system replacement, new installations, and solar solutions. As a Lennox Premier Dealer, Daikin Comfort Pro, and WellAir Elite dealer, we are Diamond Certified, hold an A+ BBB Rating, and have been voted “The Best Heating & Air Company” and “The Most Community-Minded Company” by The Press in Brentwood, CA for two years. We are also SFGATE’s Best of the Bay Area Heating & A/C Service provider.
"5 star service!!! A crew of 3 arrived, Brandon H, Nestor C and Anthony A. They did an excellent job and very hard workers. I am thrilled with their professionalism, hot tips and work ethic. Will definitely recommend them!! Thank you again!!!"
Lisa V on May 2025
At Bell Brothers, our number priority to keep our customer, employees, and their families safe. As we continue to closely monitor the coronavirus situation, we want you to know that we have taken steps to ensure we are serving you in the safest way possible. As a precautionary measure, to ensure we are doing everything we can to ensure a safe and healthy work environment, we have implemented increased hygiene routines. This includes increased cleaning and sanitizing of all offices and high contact areas. All technicians will be taking precautionary measures such as: -Wearing gloves -Limiting contact such as handshaking -Hand washing and sanitizing before and after each customer visit -Wearing a mask on their face We will be doing everything we can to keep you and our technicians safe. Thank you for your trust in Bell Brothers. We remain committed to safely serving you.
"sometimes it takes time to complete the work"
Jayant S on August 2024
At Bell Brothers, our number priority to keep our customer, employees, and their families safe. As we continue to closely monitor the coronavirus situation, we want you to know that we have taken steps to ensure we are serving you in the safest way possible. As a precautionary measure, to ensure we are doing everything we can to ensure a safe and healthy work environment, we have implemented increased hygiene routines. This includes increased cleaning and sanitizing of all offices and high contact areas. All technicians will be taking precautionary measures such as: -Wearing gloves -Limiting contact such as handshaking -Hand washing and sanitizing before and after each customer visit -Wearing a mask on their face We will be doing everything we can to keep you and our technicians safe. Thank you for your trust in Bell Brothers. We remain committed to safely serving you.
"sometimes it takes time to complete the work"
Jayant S on August 2024
Tyndall HVAC is founded on principles of quality and integrity, boasting an impressive legacy that spans over 25 years. At the heart of our operations lies a steadfast commitment to excellence, a guiding principle that influences every aspect of our service, from the initial consultation to the finalization of each project. Our primary goal is to enhance homeowners' and business proprietors' living and working environments, ensuring their comfort and satisfaction. We pride ourselves on our transparent and fair pricing model, which features a flat-rate system to eliminate the possibility of unforeseen expenses. At Tyndall HVAC, we offer complimentary, no-obligation proposals for new installations, affirming our position as a trusted and reliable partner in HVAC solutions.
"Peter was easy to work with, accommodating of our time, and professional. His team was courteous, competent, and friendly. The installation went well. I couldn't be happier!"
Edward H on May 2025
Tyndall HVAC is founded on principles of quality and integrity, boasting an impressive legacy that spans over 25 years. At the heart of our operations lies a steadfast commitment to excellence, a guiding principle that influences every aspect of our service, from the initial consultation to the finalization of each project. Our primary goal is to enhance homeowners' and business proprietors' living and working environments, ensuring their comfort and satisfaction. We pride ourselves on our transparent and fair pricing model, which features a flat-rate system to eliminate the possibility of unforeseen expenses. At Tyndall HVAC, we offer complimentary, no-obligation proposals for new installations, affirming our position as a trusted and reliable partner in HVAC solutions.
"Peter was easy to work with, accommodating of our time, and professional. His team was courteous, competent, and friendly. The installation went well. I couldn't be happier!"
Edward H on May 2025
We are dedicated to providing our clients with the very best in service, installation and repair for all phases of your plumbing needs. We specialize in a variety of residential and commercial services and take pride in the attention to detail put into each of the projects we are involved with. We are known for our quality work and the integrity of our business. We look forward to building long term relationships with our clients and guarantee your satisfaction.
"They did a good job."
Oskar W on June 2021
We are dedicated to providing our clients with the very best in service, installation and repair for all phases of your plumbing needs. We specialize in a variety of residential and commercial services and take pride in the attention to detail put into each of the projects we are involved with. We are known for our quality work and the integrity of our business. We look forward to building long term relationships with our clients and guarantee your satisfaction.
"They did a good job."
Oskar W on June 2021
Eagle Air has been in business since 1993 and is a recognized authority in HVAC design, installation, repair, maintenance, and replacement of residential and commercial heating and air conditioning systems. Eagle Air offers equipment and certified professional service.
"Good"
Ani B on August 2024
Eagle Air has been in business since 1993 and is a recognized authority in HVAC design, installation, repair, maintenance, and replacement of residential and commercial heating and air conditioning systems. Eagle Air offers equipment and certified professional service.
"Good"
Ani B on August 2024
We're a totally new and different home care service for busy homeowners - trusted by 2k homeowners and named one of Business Insider's Top Proptech Companies of 2024! Get top-notch, reliable care all year long, with one go-to handyman to regularly tackle to-do's and take care of proactive home maintenance, plus the ability to schedule in seconds and track progress easily on the app. Our exceptional handymen set us apart. They are full-time employees who are vetted for skill, quality, and friendliness. Honey Homes handymen can tackle many around the house (caulking and grouting, furniture assembly, hanging and installation, closet adjustments, and more), and also minor electrical and plumbing (replacing light fixtures, outlet and switch replacement, smart home device installation, faucet replacement, and more). Get started with a free walk-thru at honeyhomes.com. We'll create a plan to tackle your to-do list and provide tips for your unique home. We'll then start crossing off items!
"Honey Homes has been a game-changer for me! Their dedicated handyman service has given me valuable time back in my day by taking care of all the household tasks that used to pile up. From fixing minor issues to handling bigger projects, they’re reliable, efficient, and save me so much hassle. It’s great knowing I can count on them to keep my home in great shape. Highly recommend!"
Devin G on October 2024
We're a totally new and different home care service for busy homeowners - trusted by 2k homeowners and named one of Business Insider's Top Proptech Companies of 2024! Get top-notch, reliable care all year long, with one go-to handyman to regularly tackle to-do's and take care of proactive home maintenance, plus the ability to schedule in seconds and track progress easily on the app. Our exceptional handymen set us apart. They are full-time employees who are vetted for skill, quality, and friendliness. Honey Homes handymen can tackle many around the house (caulking and grouting, furniture assembly, hanging and installation, closet adjustments, and more), and also minor electrical and plumbing (replacing light fixtures, outlet and switch replacement, smart home device installation, faucet replacement, and more). Get started with a free walk-thru at honeyhomes.com. We'll create a plan to tackle your to-do list and provide tips for your unique home. We'll then start crossing off items!
"Honey Homes has been a game-changer for me! Their dedicated handyman service has given me valuable time back in my day by taking care of all the household tasks that used to pile up. From fixing minor issues to handling bigger projects, they’re reliable, efficient, and save me so much hassle. It’s great knowing I can count on them to keep my home in great shape. Highly recommend!"
Devin G on October 2024
Vivianos Painting provides painting services in Oakland, CA, and the area. You can call for different painting, plumbing, and other services. I will be glad to help you! Residential Handyman Service, Painting Service, Plumbing Service, Small Siding Repair, Exterior Painting Piedmont CA; Albany CA; Orinda CA; Pinole CA; Moraga Town CA; Interior Painter, Painting Specialist, Immaculate Painting, Affordable Painting Contractors, Quality Painting Services http://vivianospainting.com/
"It was excellent. They were responsive and quick. I liked the quality overall."
Darryl G on March 2023
Vivianos Painting provides painting services in Oakland, CA, and the area. You can call for different painting, plumbing, and other services. I will be glad to help you! Residential Handyman Service, Painting Service, Plumbing Service, Small Siding Repair, Exterior Painting Piedmont CA; Albany CA; Orinda CA; Pinole CA; Moraga Town CA; Interior Painter, Painting Specialist, Immaculate Painting, Affordable Painting Contractors, Quality Painting Services http://vivianospainting.com/
"It was excellent. They were responsive and quick. I liked the quality overall."
Darryl G on March 2023
Albert Nahman Services was founded in 1981 and has been serving Berkeley, CA and it surrounding areas in all their plumbing and HVAC needs. Each of our technicians went through rigorous training so we can guarantee that you will be receiving the proper service. We are also insured and supply a warranty for our parts for five years and up to twenty years on an re-piping or sewer replacement. Call us now to make your appointment!
"It was fine but to expensive sorry Ivan’s affort that much"
Rene T on May 2025
Albert Nahman Services was founded in 1981 and has been serving Berkeley, CA and it surrounding areas in all their plumbing and HVAC needs. Each of our technicians went through rigorous training so we can guarantee that you will be receiving the proper service. We are also insured and supply a warranty for our parts for five years and up to twenty years on an re-piping or sewer replacement. Call us now to make your appointment!
"It was fine but to expensive sorry Ivan’s affort that much"
Rene T on May 2025
Smart Heating and Air Conditioning has what you need when it comes to AC Repair and Furnace Repair, with over 20+ years of experience. From small to large A/C Repair or Furnace Repair to routine maintenance, Smart Heating and Air Conditioning specializes in repair, service and maintenance of your home's Central Heating & Cooling, Ductwork, or Indoor Air Quality / Filtration. Not to mention Smart HVAC excellent equipment replacement and installations. Cities we service throughout Contra Costa and Alameda County include: Alameda, Alamo, Antioch, Berkeley, Brentwood, Clayton, Clyde, Concord, Danville, Diablo, Discovery Bay, Dublin, El Cerrito, Hayward, Hercules, Kensington, Lafayette, Livermore, Martinez, Montclair, Moraga, Oakland, Oakley, Orinda, Piedmont, Pittsburg, Pleasant Hill, Pleasanton, Rossmoor, San Ramon, San Leandro and Walnut Creek, CA. Call today for your free estimate on equipment.
"Came out and looked over the furnace to make sure it's all ok. Looked at a lot of inner parts, cleaned some of them with fine tools. Worth it!"
MATT W on December 2024
Smart Heating and Air Conditioning has what you need when it comes to AC Repair and Furnace Repair, with over 20+ years of experience. From small to large A/C Repair or Furnace Repair to routine maintenance, Smart Heating and Air Conditioning specializes in repair, service and maintenance of your home's Central Heating & Cooling, Ductwork, or Indoor Air Quality / Filtration. Not to mention Smart HVAC excellent equipment replacement and installations. Cities we service throughout Contra Costa and Alameda County include: Alameda, Alamo, Antioch, Berkeley, Brentwood, Clayton, Clyde, Concord, Danville, Diablo, Discovery Bay, Dublin, El Cerrito, Hayward, Hercules, Kensington, Lafayette, Livermore, Martinez, Montclair, Moraga, Oakland, Oakley, Orinda, Piedmont, Pittsburg, Pleasant Hill, Pleasanton, Rossmoor, San Ramon, San Leandro and Walnut Creek, CA. Call today for your free estimate on equipment.
"Came out and looked over the furnace to make sure it's all ok. Looked at a lot of inner parts, cleaned some of them with fine tools. Worth it!"
MATT W on December 2024
Heat pumps rely on evaporation and condensation processes. The unit transfers heat through the system via a compressed refrigerant. The compressor within the pump circulates the refrigerant through two coils. The first coil evaporates the refrigerant and absorbs warmth from the air. The refrigerant then passes to the second coil, where it condenses, and the unit releases the absorbed heat.
A well-installed and well-maintained heat pump lasts an average of 12 to 20 years. Routine filter changes, annual tune‑ups, and prompt repairs help the equipment reach the upper end of that range, while skipped maintenance or poor installation can shorten its life and raise long‑term costs. Ask your heat pump installation pro for maintenance recommendations so you can get the maximum benefit from your unit.
Heat pumps are most effective in regions where winter lows remain above approximately 40°F. Efficiency starts to drop below that point and falls off sharply near 25°F. If you live in a colder area, look for a model with a high Heating Seasonal Performance Factor (HSPF) and plan on supplemental heat during deep freezes to keep energy use in check.
The biggest drawbacks are the upfront cost and poor cold-weather performance. Installation can require electrical upgrades or duct changes, and once temperatures fall well below freezing, the unit may need help from a furnace or electric resistance coils. Factor in those add‑ons, along with routine maintenance, when you weigh the long‑term savings against the initial investment.