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Heise's Plumbing
- Call
- Sink
- Drain
“My only complaint is that it has become so large that you are always dealing with someone new, whether on the phone or in person as part of the work crew.”
Best HVAC Contractors in San Ramon, CA
24 companies listed · 5 in San Ramon · 11 open weekends · 23 rated 4.5+ · 11 show a license
Data verified October 15, 2026
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Degree Hvac
- Questions
- Water Heater
- Tech
“On time, professional, explained things, responded clearly to questions as the work unfolded, worked diligently to finish the task competently and in a timely manner.”
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Lutz Plumbing Inc
- Team
- Products
- Shower
“Phil and I coordinated over the phone and email to ensure all parties (plumber, electrician, and painter) were present at the site visit because we needed to add electrical outlets and relocate the water outlets.”
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Pacific Coast Home Services
- Technicians
- Diagnosis
- Questions
“Just at the quote stage now, Ray knows his business and took the time to fill indirect the project and recommend the equipment we need to replace our two 30 year old heaters and add two new A/C units.”
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Wizard Plumbing
- Morning
- Garbage Disposal
- Estimate
“Kevin arrived and identified that the water heater was leaking and needed to be replaced, after answering my many questions and making calls around to find the model I wanted.”
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Chill Heating & Cooling
- Compressor
- Leak
- Dishwasher
“He was very kind and patient and explained the process to myself and my mother and then got to work immediately!”
The 24 companies listed for San Ramon, CA work on furnaces, heat pumps and air conditioners. Each profile repeats what the company publishes about its hours, its license and the equipment it fits, alongside ratings and quotes drawn from public reviews.
Area overview: San Ramon, CA
Of the 24 companies we list here, 5 are in San Ramon itself and 19 come from towns including San Jose (9, 32 mi), San Francisco (7, 28 mi) and San Carlos (2, 26 mi). The companies on this page are rated from 4.2 to 5.0 across 7,438 reviews; 22 have 50 or more reviews and 23 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (90%), responsiveness (86%) and quality (74%). 9 are open on Saturdays and 9 on Sundays. The services the companies on this page list most often on their websites are air duct cleaning (2), attic insulation (2), heating (2) and plumbing (2). 11 show a license on their websites; 3 list staff certifications (EPA and NATE) and 6 have a BBB rating of A or A+. 16 have ten or more years of experience, the longest 93 years. 2 offer emergency call-outs; 6 offer financing or payment plans; 7 give free estimates; 6 are family- or locally-owned and 9 list coupons or special offers. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book.
Do any heating firms listed for San Ramon work on Saturdays or Sundays?
Saturday or Sunday hours show up for 11 of the 24 companies here. Saturdays fill with the calls that came in on Friday, so ask whether you are getting a repair slot or a sales visit. Sunday work is usually treated as an emergency call.
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Irbis Hvac Inc
- Water Heater
- Rebates
- Inspection
“On the last day, Jose showed me everything they had done, and went through a series of steps to ensure I had all the knowledge needed to operate my new system/thermostats.”
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All Bay Insulation & Hvac
- Asbestos
- Work
- Inspection
“Noam also offered to help on things that weren't necessarily a part of his contract - his crew (Jimmy & Bicario) cleaned, installed, sealed and fixed our dryer vent (we supplied the materials, and they didn't charge us for the labor!”
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Arch Plumbing Inc
- Water Heater
- Projects
- Communication
“He patiently listed to the issue, checked out multiple different options to see what options exist, worked with me to show in which sequence to proceed to ensure least cost (vs) benefit.”
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Magic Plumbing Heating & Cooling
- Work
- Garbage Disposal
- Estimate
“My house is 83 years old and the pipe system is confusing since there was an addition to the house more than 60 years ago, and long ago there was a water softener that's since been removed.”
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Cabrillo Plumbing
- Leak
- Plumber
- Work
“He took the time to address our questions on furnace life cycles and maintenance, heat pump transitions, indoor air quality, local, state and federal rebates - you name it.”
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Malcolm Plumbing & Mechanical
- Cost
- Call
- Job
“Max shut off the gas, removed and capped all 3 valves and then thought to go into the optometry business on the ground floor and relight the pilot on the water heater for the whole building.”
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Air Concepts
- Thermostat
- Furnace
- Tech
“With help of tools and measurements the technician could confirm that the power is coming to thermostat, going out of thermostat and current is drawn by the heater.”
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Hussey Bros.
- Crew
- Contractors
- Quote
“They went out of their way to ensure that the install looks very clean even if it meant taking the harder way of running the lines through the crawlspace (helps keep it cool and avoids the long exterior wall runs).”
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Magnet Appliance Repair
- Microwave
- Fee
- Refrigerator
“They called twice the same day by two different person mentioning that they have to change the appt because defective parts received then the next day they said they can still come on scheduled date.”
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Volta Hvac & Appliance Repair
- Morning
- Circuit Board
- Price
“No reason to buy a new dryer which probably isn't made as well as the older ones when you can call Volta and James to come out to fix your existing dryer.”
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Sandium Heating and Air Conditioning
- Mitsubishi
- Heat Pump
- Price
“I made the mistake of listening to my GC and using his HVAC vendor pre-renovation to install a Mitsubishi heat pump and they botched the job worse than I could have ever imagined.”
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Adrium Service Solutions
- Dishwasher
- Questions
- Dryer
“Andrew was on-time, explained what was included in the service call, and asked clarifying questions before beginning in order to have a better understanding of how to approach the issue.”
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Next Hvac and Appliance Repair
- Dryer
- Microwave
- Refrigerator
“I had mentioned the previous diagnosis I received (thinking it would help), but he still did a full inspection of the issue and found a different and cheaper solution to my oven's issue.”
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Air Sharks
- Project Manager
- Installer
- Questions
“It started with a phone call and Whitney was very helpful setting everything up, Rene came out and explained everything and answered all my questions, and the installation team did a great job top notch service from everyone.”
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Attic Renew 360
- House
- Efficiency
- Air Ducts
“They did a great job, Attic deep cleaning, Rodent proofing, they air sealed holes and cracks around my attic and re-insulate with eco friendly insulation”
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DG Heating & Air Conditioning
- Work
- Unit
- Duct
“It's worth mentioning that the installation (also remove the old style one) a few years ago was not an easy job, they had to open up the floor to remove the old one (installed in crawlspace) and also put exhaust pipe through roof.”
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Hertzfield Appliance Repair
- Estimate
- Information
- Diagnostic
“Hertz confirmed and today the technician Russell showed up on time and diagnosed the problem and quoted a very fair price to repair that included the service call fee.”
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Alternative Hvac Solutions
- Energy Efficient
- Mitsubishi
- Price
“Our 80 year old gravity gas furnace was not working, after calling several HVAC companies who no longer worked on these units, I was referred Alternative HVAC in Menlo Park.”
HVAC, Heating & AC Services in San Ramon, CA Cost Estimates
Minimum cost
$1963
Maximum cost
$11764
National Average
$6124
Avg Per Hour Rates
$163
$4204
$8118
Typical price range is based on 528 cost profiles
Why these companies made our list
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