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
No, you don’t need a ductless unit in every room. Ductless AC units don't work the way that window units do, where the air doesn't travel outside that room. The indoor air handlers all attach to the outdoor condenser. While the air doesn't travel the way that traditional ductwork would, the ductless AC units create zones so that one part of the home can be cooler than another. They can spread effectively enough that indoor units only need to be placed in main living areas.
If your HVAC system's capacity doesn't match the required CFM (Cubic Feet per Minute), imbalances can occur. An undersized system struggles to maintain desired temperatures, leading to discomfort. An oversized system might short-cycle, wasting energy and causing temperature fluctuations. Properly matching capacity to CFM ensures efficient and consistent heating, cooling, and home ventilation system performance.
If both your furnace and AC unit are more than a decade old, it may be a good idea to replace both of them. However, your furnace can last up to three decades, and your air conditioner can typically last up to 15 years, so consulting with a pro before deciding to replace both of them is best. If it’s before that time limit for each, you can fix many problems with repairs or just replace one.
The standard rule for return duct sizing is that the return vent should be the same size or larger than the supply vent. This will ensure balanced airflow in your home and reduce strain on your HVAC system.
HVAC maintenance is crucial for the longevity of your unit. Without proper care, your HVAC unit can break down frequently. In addition, a system that is dirty and not cleaned correctly will not heat or cool as efficiently and will increase your energy bills due to the increase in energy consumption. Additionally, you will probably have to replace your unit sooner than you would if it were properly maintained, which will cost you more money.
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.
There are few things more important to homeowners than keeping their AC systems running. Use this guide on AC leak repair to keep your home cool and comfy.
Baseboard heater covers can endure a lot of wear and tear, but eventually you’ll want to replace them. Here’s the best way to switch out baseboard heater covers.
