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Bodnar Heating & Air Conditioning
- Honest
- Furnace
- Integrity
“I'm just getting started working with John on a problem with my old gravity furnace, but based on one visit and a couple of interactions I am already very impressed.”
Best HVAC Contractors in Redwood City, CA
24 companies listed · 11 in Redwood City · 4 open 24/7 · 15 open weekends · 20 rated 4.5+
Data verified October 15, 2026
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Flow Masters Plumbing and Heating
- Flowmaster
- Water Heater
- Radiant Heating and Cooling
“Juan quickly diagnosed our plumbing issue, walked me through the diagnosis, suggested options and ultimately completed the work extremely efficiently, with a high degree of professionalism.”
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Power Plumbing
- Leak
- Price
- Drain
“They were able to immediately detect where the water was and had gotten to and quickly repaired the leak itself, which was in a different place than I had thought.”
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Furnace Man
“Gotta get all my Furnace Needs taken care of by The Furnace Man!”
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Smart Repair
- Dishwasher
- Diagnose
- AC
“I received full paid invoice from this company for my tax return documents after finishing work, and a lot of information notifications during the repair process”
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AJ Appliance & Refrigeration Service
- Appliances
- Price
- Estimate
“When my furnace fan wouldn't turn off, I called AJ Appliance since they had successfully repaired our refrigerator and washing machine in the past and they had also encouraged us NOT to repair our old dishwasher.”
The 24 companies listed for Redwood City, 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: Redwood City, CA
Of the 24 companies we list here, 11 are in Redwood City itself and 13 come from towns including Union City (5, 13 mi), Foster City (2, 5 mi) and Daly City (2, 18 mi). 21 of the companies on this page have a rating, from 4.0 to 5.0 across 2,621 reviews; 7 have 50 or more reviews and 20 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (93%), responsiveness (78%) and quality (70%). The topics that come up most in reviews of the companies on this page are "price", "estimates" and "communication". 4 are open around the clock; 13 are open on Saturdays and 11 on Sundays. 8 show a license on their websites and 6 have a BBB rating of A or A+. Domain records put 12 websites of the companies on this page at ten or more years old; the oldest dates from 1998. 6 offer emergency call-outs; 4 offer financing or payment plans; 9 give free estimates; 5 are family- or locally-owned and 6 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.
Which companies listed for Redwood City answer no-heat calls at night?
Round the clock availability appears in 4 of the 24 listings on this page. An overnight visit is usually a diagnosis and a temporary fix, since supply counters are shut until morning. Ask what the after hours call out is before the truck leaves.
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Lunar Air Systems
- Wires
- Furnace
- Phone
“Few days latter I tried to put it back on but as soon as I lit the pilot light and put it in the ON position it started to work again even tough I disconnected the thermostat.”
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Electric Air
- Electrical
- Heat Pump
- Products
“Some of this was related to existing conditions in the house before their team came through, but they were quick in sending a team to address all the issues and get us sorted.”
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Precise Climate Solutions
- Punctual
- Furnace
- Winter
“He assessed that the problem was with the thermostat only and he replaced it the same day, programmed it and showed us how to change the programmed settings as needed.”
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Alternative Energy
“Very knowledgeable radiant heating contractor with great staff who operate with urgency and care”
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Indfoss Refrigeration Inc.
“Very quick to respond and easy to work with.”
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Stuckert Heating & Sheet Metal
“Excellent service”
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Janal Heating & Air Conditioning
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Dan Salzberg's Radiant Heating
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Tradewinds Heating
- Home
- Price
- Contractors
“Steve's attention to detail is really astounding, I am a micro-manager when it comes to people working in my home, but I did not feel the need to remind Steve to do things.”
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Redwood Hvac
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Control Fire
“I completely remolded my house in Redwood City/Emerald Hills and I thought that having to add fire sprinklers was going to be a HUGE headache, but it wasn't.”
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A and R Air Conditioning
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Repix Appliances & Repair
“You can guarantee an honest quote and a fantastic job.”
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Alltemp Hvac Inc
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Degree Hvac
- Tech
- Furnace
- Efficient
“They gave us more complete advice than the other company that bid on the job, which helped us choose the right options for improving filtration for virus and smoke particles.”
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AIS Heating & Air Conditioning
- Company
- Hvac
- Project
“Marked contrast to our previous HVAC contract in terms of (1) ability to schedule promptly, (2) clarity of communication, and (3) ultimate happiness with the work done.”
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Wizard Plumbing
- Estimate
- Job
- Dispatcher
“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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Bay Area Climate Control
- Questions
- Price
- Communication
“I thought it would be a 5 rating, but later that night I couldn't get the furnace to turn on, using what I had learned from his verbal lesson and by reading the booklet he left.”
HVAC, Heating & AC Services in Redwood City, CA Cost Estimates
Minimum cost
$1998
Maximum cost
$11975
National Average
$6234
Avg Per Hour Rates
$166
$4279
$8263
Typical price range is based on 463 cost profiles
Why these companies made our list
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