Galveston Heating & Air Conditioning keeps homes on the island and across Galveston County comfortable — with air conditioning repair, heating service, new system installs, and water heater replacement. Day or night, we pick up.
"Answered their phone at 8pm on a Sunday night and had my 92 year old mother's ac going in 2 hrs."
— ontoiran, Google review
Middle of the night?
We're open around the clock, seven days a week — no waiting until Monday, no answering machine.
What we fix
Warm air from the vents, a unit that won't kick on, or a strange rattle outside? We track down the cause and get cold air flowing again — salt air and island humidity included.
When repairs stop making sense, we size and set a replacement system that fits your home, from historic East End houses to raised beach cottages.
Gulf Coast cold snaps are short but sharp. We inspect, repair, and tune furnaces and heat pumps so you're never caught shivering.
Cold showers or a leaking tank? We remove the old unit and install a dependable replacement so the hot water comes back fast.
How it works
A real person picks up — morning, midnight, weekends, holidays.
A technician comes out, checks the system, and explains what's wrong in plain language.
You approve the work first. Then we get your home comfortable again.
Cool rooms, warm showers, and a number you can save for next time.
Customer stories
111 reviews on Google
"Galveston bay ac answered their phone at 8pm on a Sunday night and had my 92 year old mother's ac going in 2 hrs. I've never even met them but I can't say enough good things about them. Thank you gbac."
"They are truly a 24/7 operation. I highly recommend Galveston Bay Air Conditioning and would use them again."
"Angel came out and got my broken AC unit up and within minutes. I would highly recommend. He's honest, trustworthy, and knows his stuff"
"I cannot say good enough things about Angel and the way he treats his customers! He maintains all of our units for our two rental properties and our home. Each time we have an issue with any of the units he comes out the same day and handles the issue. Today one of our units was not working properly and I sent him a message at 5:00pm and by 8:30pm he was already at the house looking at it and resolving it. When he tells you he is going to do something he follows through and no need to stress or worry about it. I definitely recommend him to anyone without hesitation!!!"
"AC stopped working day after my husband had surgery. Angel came out within thirty minutes and repaired it quickly. I will call him anytime I need ac repair. I would recommend him to anyone who needs ac repair."
Our story
We're based right here on Avenue M, so we know what Galveston does to a cooling system — the salt spray, the sticky summers, the long stretches when the AC never gets a break.
Homeowners, landlords, and rental owners call us because we show up when we say we will, explain things straight, and treat every house like it's family's. That's how we've earned a 4.8-star rating across 111 Google reviews.
Where we work
From the Seawall to the Strand and across the causeway, we serve homes throughout Galveston County.
Reach us
For urgent problems, calling is fastest. For everything else, drop us a note.