
Serving Castro Valley, CA and surrounding areas
Approved
In business since 2009
Free estimates
Emergency services offered
"They provide quality, quick service. I don t know whether the price for a new a/c was good or not."





+9


Serving Castro Valley, CA and surrounding areas
Approved
In business since 2009
Free estimates
Emergency services offered
"They provide quality, quick service. I don t know whether the price for a new a/c was good or not."





+9

Serving Castro Valley, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2021
Free estimates
Emergency services offered
"knowledgeable, professional, prompt and courteous, highly recommend, came out the first day, repaired the next, if hvac issues arise again they will be the ones I call"





+27

Serving Castro Valley, CA and surrounding areas
Approved
In business since 2005
Free estimates
Emergency services offered
"Repair done quickly. Technician courteous, knowledgeable and arrived on time."




Serving Castro Valley, CA and surrounding areas
Approved (Corporate)
In business since 1981
Free estimates
Warranties offered
"Can not imagine a better response, starting with my call for assistance, response time and how the technician, Tad methodically diagnosed the problem. We have an obscure kitchen fixture that required service in Feb 2019. Under warranty the problem was easily diagnosed by me, a problem possibly caused by me and a replacement part sent and installed by Albert Nahman team. Problem: I broke the faucet cartridge. Current Problem: restricted hot water flow in this kitchen sink only. Turns out the new cartridge part is now malfunctioning. I called and Tad arrived taking a step by step approach ruling out possible causes: a clog here or there, build up of sediment, or blockage in the lines or cartridge. The company that sells the product got on the phone with Tad and they collaborated on the problem and the tech person gave Tad one more thing to try. After the collaboration it is agreed, problem persisted and therefore that new cartridge part is now malfunctioning and will be shipped free of charge in two days. Thanks to all, who made this possible and I trust we will have Tad here again soon to finalize this fix. BTW, cost of service was less than expected given going rates for such a call lasting in excess of one hour. Another comment, spending time with Tad during the repair was a pleasure to have him explain, collaborate, listen and just chat. Questions on who to call next time, no question who I will call next time. I have read criticism of costs: In the Berkeley area "How much does it cost to hire a plumber? Some plumbers have a minimum fee for a service call. They might charge anywhere from $175-250 to come out and give you a consultation. Plumbers may give you a general service rate of $128-148 per hour when there are a lot of unknowns about a project and they aren't sure how long it will take. Some charge a flat rate for their plumbing services. For example, you may get charged $175 for a sink or drain cleaning, while toilet installation costs $500." Today costs are upfront, same as charges in Feb, $69 to arrive and assess the problem. Here in excess of one hour for $129 minus $25 coupon, total charge $173. I am ok and I expected these costs. If I was in Philly, where I grew up, I could call an uncle or cousin and get a better rate, a family rate. This is going rate for our area."





+73

Serving Castro Valley, CA and surrounding areas
Approved
In business since 2016
Free estimates
Emergency services offered
"I had a great experience with this HVAC company from start to finish. The technician arrived on time, was professional, knowledgeable, and took the time to explain everything clearly. They quickly diagnosed the issue, completed the repair efficiently, and made sure everything was working perfectly before leaving. The pricing was fair, and there I had a great experience with this HVAC company from start to finish. The technician arrived on time, was professional, knowledgeable, and took the time to explain everything clearly. They quickly diagnosed the issue, completed the repair efficiently, and made sure everything was working perfectly before leaving. The pricing was fair, and there were no surprises. It is hard to find a company that is this honest, reliable, and committed to great customer service. I hig were no surprises. It is hard to find a company that is this honest, reliable, and committed to grea customer service. I highly recommend them to anyone looking for quality HVAC work!"





+14

Serving Castro Valley, CA and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
*****669-669-2435*****We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business.





+2

Serving Castro Valley, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2022
Free estimates
Emergency services offered
"Absolutely the best HVAC company in the area. If you are looking for a company for your HVAC needs, look no further. It is superb in every aspect: customer service, onsite specialist who did the inspection and quoting, technicians who installed the system. Their price is extremely competitive, especially for the high end systems. I was shopping for a 80% 2-stage furnace but I ended up getting a Lennox 99% variable-speed furnace because the price was too good to pass. But it is money well spent. It is so quiet and powerful. I highly recommend Air Sharks. They actually put a smile on our faces."





+22

Serving Castro Valley, CA and surrounding areas
Approved
In business since 1953
Free estimates
Warranties offered
"Surprisingly good service in terms of presentation, knowledge, skill and price. I am very happy with Bell Brothers!"





+17

Serving Castro Valley, CA and surrounding areas
Approved
In business since 2019
Free estimates
Emergency services offered
"Top notch from reception to the repair man . Fixed explain why ,what. VERY PLEASE."





+4

Serving Castro Valley, CA and surrounding areas
Approved
In business since 2012
Free estimates
Warranties offered
At Art of Comfort, we believe every homeowner deserves a reliable, comfortable home — and a contractor they can trust. As a locally owned and operated company founded in Pleasanton in 2012, we've spent over a decade earning the confidence of Tri-Valley families through honest work and consistent results.\nWe're proud to be Diamond Certified, a distinction earned through rigorous quality verification and consistently high customer satisfaction scores.\nOur HVAC services include repair, installation, and maintenance for heating and cooling systems, as well as duct repair and replacement. Whether your system has broken down or you're ready for an upgrade, our experienced technicians are here to help.\nWe serve Pleasanton, Livermore, Dublin, Danville, San Ramon, Walnut Creek, Pleasant Hill, and the surrounding Tri-Valley area.

From average costs to expert advice, get all the answers you need to get your job done.

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