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 25 years of experience C.A Heating and Air Conditioning is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!
"“Chad was awesome! He showed up on time, was professional, and walked through different scenarios to make sure the job got done right. Really appreciated his problem-solving approach and thoroughness.” Thank you again Chad!"
shawn s on April 2025
With 25 years of experience C.A Heating and Air Conditioning is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!
"“Chad was awesome! He showed up on time, was professional, and walked through different scenarios to make sure the job got done right. Really appreciated his problem-solving approach and thoroughness.” Thank you again Chad!"
shawn s on April 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.
"Great customer service!"
John _ on March 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.
"Great customer service!"
John _ on March 2025
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
Specializing in Handyman work! We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out our services offered and call or click to schedule a free estimate today!
"Poor workmanship, substandard work."
Crawford C on January 2022
Specializing in Handyman work! We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out our services offered and call or click to schedule a free estimate today!
"Poor workmanship, substandard work."
Crawford C on January 2022
We are small company that specializes in exterior and interior painting also any handyman projects. No job is too big or too small! Let us help you with your next project !
"The contractor arrived on time and immediately began work. The job was completed thoroughly and efficiently within a reasonable timeframe, demonstrating a high level of professionalism."
Vickie L on December 2024
We are small company that specializes in exterior and interior painting also any handyman projects. No job is too big or too small! Let us help you with your next project !
"The contractor arrived on time and immediately began work. The job was completed thoroughly and efficiently within a reasonable timeframe, demonstrating a high level of professionalism."
Vickie L on December 2024
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!
"He was not able to perform the service. He told me he did not have the correct parts. That I needed PGE to come back out. I had another professional come the following day and he was able to diagnose and fix both wall heaters with no issue. I was very diappointed and felt cheated."
Tracy D on April 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!
"He was not able to perform the service. He told me he did not have the correct parts. That I needed PGE to come back out. I had another professional come the following day and he was able to diagnose and fix both wall heaters with no issue. I was very diappointed and felt cheated."
Tracy D on April 2025
Call for a free estimate! HVAC & Insulation Gurus have an extensive background in HVAC and insulation services. With fifteen years of experience on the field, the Gurus have earned a reputation as trusted installers. Our mission is to provide both our residential and commercial customers with reliability, expert advice, quality work integrity and an outstanding service. We dedicate ourselves 110% to our customers not only to achieve energy efficiency, comfort, and safety, but also to establish a friendship. Everybody needs a Guru in the family. Let us be yours!
"Great! Super knowledgeable and helpful."
Catherine M on March 2025
Call for a free estimate! HVAC & Insulation Gurus have an extensive background in HVAC and insulation services. With fifteen years of experience on the field, the Gurus have earned a reputation as trusted installers. Our mission is to provide both our residential and commercial customers with reliability, expert advice, quality work integrity and an outstanding service. We dedicate ourselves 110% to our customers not only to achieve energy efficiency, comfort, and safety, but also to establish a friendship. Everybody needs a Guru in the family. Let us be yours!
"Great! Super knowledgeable and helpful."
Catherine M on March 2025
With over 17 years of experience in the Bay Area, we are proud to offer an extensive array of HVAC solutions for all you indoor comfort needs. Our team of professionally trained and certified advisors and installers provide quality workmanship and excellent customer service. We are determined to go the extra mile to ensure that all of our customers are happy homeowners! We work closely with each individual client to fully understand their unique needs, preferences and budget. Our commitment to customer satisfaction means we won't rest until you are 100% satisfied. Specializing in heating and air conditioning replacement and repairs, furnace and heat pump upgrades and ductless systems. We also provide in depth assessments for air duct repair and replacements. Our Innovative approach to newer HVAC technology for home additions, ADU's and eco-concious homes is unparalled in the local industry.
"Tech said that the Freon leaked out and that the compressor burned out because of it. Quoted $4800 to replace compressor and recharge, or $7,000 for a new AC unit. Got a second opinion and hired a handyman. Turns out the breaker was tripped and needed some fiddling with. AC works great now. Can’t believe they were going to lie about what was wrong to replace the whole AC. Just because it was an old unit. Get a second opinion for them if they tell you something similar."
John N on July 2018
With over 17 years of experience in the Bay Area, we are proud to offer an extensive array of HVAC solutions for all you indoor comfort needs. Our team of professionally trained and certified advisors and installers provide quality workmanship and excellent customer service. We are determined to go the extra mile to ensure that all of our customers are happy homeowners! We work closely with each individual client to fully understand their unique needs, preferences and budget. Our commitment to customer satisfaction means we won't rest until you are 100% satisfied. Specializing in heating and air conditioning replacement and repairs, furnace and heat pump upgrades and ductless systems. We also provide in depth assessments for air duct repair and replacements. Our Innovative approach to newer HVAC technology for home additions, ADU's and eco-concious homes is unparalled in the local industry.
"Tech said that the Freon leaked out and that the compressor burned out because of it. Quoted $4800 to replace compressor and recharge, or $7,000 for a new AC unit. Got a second opinion and hired a handyman. Turns out the breaker was tripped and needed some fiddling with. AC works great now. Can’t believe they were going to lie about what was wrong to replace the whole AC. Just because it was an old unit. Get a second opinion for them if they tell you something similar."
John N on July 2018
We offer everything from residential repairs to full kitchen and bathroom remodeling! We pride ourselves on our over twenty years of experience and offer 100% satisfaction. Contact us for free quotes!
"Excellent! I thought I needed a new thermostat since I wasn’t getting any heat. Juan came over , checked the circuit breaker and found that the breaker was worn out. He replaced the breaker and found that the thermostat was still functioning. He could have said that the thermostat needed replacing too but instead he just said you needed a new circuit breaker. I really appreciated the honesty. If he said I needed the thermostat too I would have paid for both thus increasing my bill. I just want to add a few more comments about the work that he’s done for me. I first met Juan when he came over to my house to stabilize a lose tile that was above my garage door. Then I showed him mold growing next to my shower door. He found a small crack that allowed water to seep into the sheet rock. He replaced the shower door and the sheet rock that was growing mold. Then I took him to the bathroom where I showed him a bulging floor board next to the toilet. He found a small crack in the toilet tank that slowly dripped water on to the backside of toilet dripping water onto the base board. He offered to repair the tank but I told him to go ahead and replace the toilet. I can’t say enough about Juan. Whatever the problem is he’ll figure out how to fix it. When he approaches a problem he approaches with a positive attitude. Another time my ceiling fan went out and I asked him to come out to see what the problem was. Instead over the phone he told me to check the remote control. I went on Amazon and ordered a new remote control . I placed in new batteries and the fan started working. He didn’t charge me anything for the advice. I was prepared to buy a new fan and all I needed was a new remote. Juan is multi talented. I’ve recommend him to my neighbor and he’s done a couple of projects for her (leaking roof). Lastly, in a couple of weeks he’s coming over to paint my front door and put a new latch on my side gate. I’m 77 years with an injured leg so fixing things around the house is difficult for me. Juan has made my life easier."
Calvin C on February 2025
We offer everything from residential repairs to full kitchen and bathroom remodeling! We pride ourselves on our over twenty years of experience and offer 100% satisfaction. Contact us for free quotes!
"Excellent! I thought I needed a new thermostat since I wasn’t getting any heat. Juan came over , checked the circuit breaker and found that the breaker was worn out. He replaced the breaker and found that the thermostat was still functioning. He could have said that the thermostat needed replacing too but instead he just said you needed a new circuit breaker. I really appreciated the honesty. If he said I needed the thermostat too I would have paid for both thus increasing my bill. I just want to add a few more comments about the work that he’s done for me. I first met Juan when he came over to my house to stabilize a lose tile that was above my garage door. Then I showed him mold growing next to my shower door. He found a small crack that allowed water to seep into the sheet rock. He replaced the shower door and the sheet rock that was growing mold. Then I took him to the bathroom where I showed him a bulging floor board next to the toilet. He found a small crack in the toilet tank that slowly dripped water on to the backside of toilet dripping water onto the base board. He offered to repair the tank but I told him to go ahead and replace the toilet. I can’t say enough about Juan. Whatever the problem is he’ll figure out how to fix it. When he approaches a problem he approaches with a positive attitude. Another time my ceiling fan went out and I asked him to come out to see what the problem was. Instead over the phone he told me to check the remote control. I went on Amazon and ordered a new remote control . I placed in new batteries and the fan started working. He didn’t charge me anything for the advice. I was prepared to buy a new fan and all I needed was a new remote. Juan is multi talented. I’ve recommend him to my neighbor and he’s done a couple of projects for her (leaking roof). Lastly, in a couple of weeks he’s coming over to paint my front door and put a new latch on my side gate. I’m 77 years with an injured leg so fixing things around the house is difficult for me. Juan has made my life easier."
Calvin C on February 2025
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.