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.
"They were very good. The best."
Nabila S on June 2022
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.
We offer over 10 years of experience in the electrical industry. We take on a wide range of electrical projects to include full installation for additions and remodels as well as wiring and panel upgrades and a variety of other jobs. We are committed to providing personalized service for each individual project we take on and look forward to building strong, long-term relationships with our clients and guarantee your satisfaction. Whether you are a homeowner, a business owner or a contractor, we value your business. We want to build a relationship with you as a satisfied customer by providing you with the best experience possible. We know we have done our best when one of our customers recommends us to a friend or neighbor.
"Good job."
michael n on March 2025
We offer over 10 years of experience in the electrical industry. We take on a wide range of electrical projects to include full installation for additions and remodels as well as wiring and panel upgrades and a variety of other jobs. We are committed to providing personalized service for each individual project we take on and look forward to building strong, long-term relationships with our clients and guarantee your satisfaction. Whether you are a homeowner, a business owner or a contractor, we value your business. We want to build a relationship with you as a satisfied customer by providing you with the best experience possible. We know we have done our best when one of our customers recommends us to a friend or neighbor.
We have a 10 year experience in Handyman work, serving all around the bay area. We will always put in all our effort to give our costumers 100% satisfaction. We like to build good relationships with our customers. We do free estimates with no obligation to proceed.
"Didn’t get to finish due to a part cracked"
Ethan M on November 2024
We have a 10 year experience in Handyman work, serving all around the bay area. We will always put in all our effort to give our costumers 100% satisfaction. We like to build good relationships with our customers. We do free estimates with no obligation to proceed.
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!
"The plumbing technicians came out as promised to assess the leak. They were both very courteous and kind and assessed the damage. I am giving three stars because they estimated the cost to be almost 250% higher than what the actual cost was to fix the issue. I am sure there are customers out there that would just accept any bid however, please get multiple beds for these projects, especially when working with this company as they will inflate the cost to take advantage of the situation. I ended up only paying for the $79 estimate."
Kevin C on September 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!
"The plumbing technicians came out as promised to assess the leak. They were both very courteous and kind and assessed the damage. I am giving three stars because they estimated the cost to be almost 250% higher than what the actual cost was to fix the issue. I am sure there are customers out there that would just accept any bid however, please get multiple beds for these projects, especially when working with this company as they will inflate the cost to take advantage of the situation. I ended up only paying for the $79 estimate."
Handyman business locally owned and operated we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!
"Edgar was absolutely fantastic. He worked diligently and very hard on this project that was supposed to be fairly simple but turned out to be a bigger project than I had expected. Edgar was patient and kind and the project was complete completed beautifully. I cannot recommend him enough for any of your handyman needs."
Scottie B on December 2025
Handyman business locally owned and operated we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!
"Edgar was absolutely fantastic. He worked diligently and very hard on this project that was supposed to be fairly simple but turned out to be a bigger project than I had expected. Edgar was patient and kind and the project was complete completed beautifully. I cannot recommend him enough for any of your handyman needs."
Full service Home Maintenance & Repair. Specializing in painting, flooring and bathroom/kitchen remodeling. Electrical, plumbing etc. Licensed General Contractor License #1088129
"Josh and his helper did excellent work. The highest peak was over 2 stories and they tackled it like the pros they are. Very nice men and I'm happy with their work."
SANDRA W on September 2025
Full service Home Maintenance & Repair. Specializing in painting, flooring and bathroom/kitchen remodeling. Electrical, plumbing etc. Licensed General Contractor License #1088129
"Josh and his helper did excellent work. The highest peak was over 2 stories and they tackled it like the pros they are. Very nice men and I'm happy with their work."
DENNIS'S HEATING & COOLING is committed to excellence in 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. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.
"Showed up on time , very professional and friendly. Got repairs completed quickly and efficiently."
Tom W on December 2025
DENNIS'S HEATING & COOLING is committed to excellence in 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. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.
"Showed up on time , very professional and friendly. Got repairs completed quickly and efficiently."
Air Sharks LLC provides a wide range of HVAC services for residential clients throughout the South Bay. In addition to installing, repairing, and maintaining heating and air conditioning systems made by industry leaders like Daikin and Lennox, the company offers various services that are designed to improve indoor air quality, including ductwork inspection and cleaning. Owner Khaled Alsaka credits much of Air Sharks’ success to its passion for transforming the HVAC process with insightful education, collaborative solutions and top-tier products. “As a pioneering force in the industry, we leverage our extensive expertise to provide our customers with seamless guidance,” he says. “Our dedication to excellence motivates us to continuously exceed expectations, ensuring every interaction reflects our unwavering commitment to delivering five-star service.” Air Sharks offers personalized consultations so it can provide each job with tailored heating and cooling solutions, which Mr. Alsaka says is important for ensuring positive results. “We take great pride in our craftsmanship and attention to detail. Every phase of our process allows us to showcase our expertise, resulting in highly satisfied customers who are eager to share their experience with others.
"I was extremely impressed with the service provided by Air Sharks, who replaced my aging furnace and damaged heat ducts. Elizabeth provided a detailed explanation in a friendly, professional and understandable way. Pricing seemed reasonable, and was 25% below a previous estimate. Daniel and his crew did a fantastic job removing and replacing the new furnace and the duct system in a very tight crawl space. They left the furnace looking absolutely beautiful and clean. I highly recommend them"
Michael B on December 2025
Air Sharks LLC provides a wide range of HVAC services for residential clients throughout the South Bay. In addition to installing, repairing, and maintaining heating and air conditioning systems made by industry leaders like Daikin and Lennox, the company offers various services that are designed to improve indoor air quality, including ductwork inspection and cleaning. Owner Khaled Alsaka credits much of Air Sharks’ success to its passion for transforming the HVAC process with insightful education, collaborative solutions and top-tier products. “As a pioneering force in the industry, we leverage our extensive expertise to provide our customers with seamless guidance,” he says. “Our dedication to excellence motivates us to continuously exceed expectations, ensuring every interaction reflects our unwavering commitment to delivering five-star service.” Air Sharks offers personalized consultations so it can provide each job with tailored heating and cooling solutions, which Mr. Alsaka says is important for ensuring positive results. “We take great pride in our craftsmanship and attention to detail. Every phase of our process allows us to showcase our expertise, resulting in highly satisfied customers who are eager to share their experience with others.
"I was extremely impressed with the service provided by Air Sharks, who replaced my aging furnace and damaged heat ducts. Elizabeth provided a detailed explanation in a friendly, professional and understandable way. Pricing seemed reasonable, and was 25% below a previous estimate. Daniel and his crew did a fantastic job removing and replacing the new furnace and the duct system in a very tight crawl space. They left the furnace looking absolutely beautiful and clean. I highly recommend them"
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."
When it comes to choosing an HVAC company in San Jose, CA, you want a partner that understands the unique heating and air conditioning needs of the area. A-1 Heating and Cooling is that partner. With years of experience under our belts, we’ve tailored our services to ensure your living or working space remains comfortable, regardless of what the weather has in store. Our team of professionals is ready to provide top-quality service with a personal touch that only a family-owned and operated company can offer. Our commitment to excellence isn’t just a tagline; it’s the cornerstone of everything we do. From the initial consultation to the final HVAC installation, maintenance, or repair, we work tirelessly to make sure your HVAC systems are running efficiently and effectively.
"They had the best bid, their team worked really hard to finish the job in 2 days and are working with the city to get the permit finished."
Saverio F on October 2024
When it comes to choosing an HVAC company in San Jose, CA, you want a partner that understands the unique heating and air conditioning needs of the area. A-1 Heating and Cooling is that partner. With years of experience under our belts, we’ve tailored our services to ensure your living or working space remains comfortable, regardless of what the weather has in store. Our team of professionals is ready to provide top-quality service with a personal touch that only a family-owned and operated company can offer. Our commitment to excellence isn’t just a tagline; it’s the cornerstone of everything we do. From the initial consultation to the final HVAC installation, maintenance, or repair, we work tirelessly to make sure your HVAC systems are running efficiently and effectively.
"They had the best bid, their team worked really hard to finish the job in 2 days and are working with the city to get the permit finished."
Saverio F on October 2024
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Heating and Air Conditioning questions, answered by experts
Fall and spring are the best times of year to purchase an air conditioner, furnace, or other HVAC components. In fact, by shopping during these periods, you could save 10% to 15% on an AC unit. For HVAC professionals, spring and fall are less busy than summer and winter, when extreme temperatures create an urgent demand for heating and cooling.
If you don’t clean your AC coils, dirt and debris build up inside your unit, making transferring heat more difficult. As a result, your HVAC system will work harder to run, potentially increasing your energy usage and utility bills. Neglected coils may also become corroded, which can lead to refrigerant leaks and mold growth—both of which can cause a slew of negative health impacts.
They can, but it’s not as common. Window AC units are much smaller than whole-house systems and less likely to develop refrigerant leaks or similar issues. As a result, you will rarely need to add a new refrigerant, limiting overcharging problems. However, it’s still important to leave refrigerant management in the hands of professionals when window units need work.
Yes, a dehumidifier and air conditioner can be used simultaneously in a home. A dehumidifier can bolster an air conditioner’s efficiency. Typically, a dehumidifier is used when the air conditioner alone cannot keep a home’s humidity levels at a comfortable indoor humidity level, which should, ideally, be between 30% and 50%.
Yes, having mismatched evaporator and condenser coils in your AC system can lead to serious issues. For instance, it can result in higher monthly energy costs as the system runs longer to compensate for the mismatch. This mismatch can also put extra stress on the system, compromising its efficiency and longevity.
Along with that, mismatched coils can lead to higher temperatures and humidity levels in the home. What’s more, using coils of different sizes may violate the manufacturer's warranty, as they are designed to work synergistically, and any mismatch could lead to repairs and system failure.
The Brisbane, CA homeowners’ guide to heating and air conditioning services
From average costs to expert advice, get all the answers you need to get your job done.
Whole-house humidifier costs vary based on the type and size of the unit, along with other factors. The price might be worth it for people living in dry regions.
