5
Our AC quit on a 102° afternoon and Glacier had a tech at the house within two hours. Diagnosed it fast, had the part on the truck, and we were cold again before dinner. Genuinely impressed.
MVMarisol Vega
Water Heater Repair & Installation in San Antonio
No hot water is a fast way to ruin a morning. Glacier repairs and replaces tank and tankless water heaters, and San Antonio's hard water makes professional service and maintenance more important than most homeowners realize.
Same-Day Service|Upfront Pricing|24/7 Emergency Availability
Water Heaters in San Antonio
No hot water is a fast way to ruin a morning. Glacier repairs and replaces tank and tankless water heaters, and San Antonio's hard water makes professional service and maintenance more important than most homeowners realize.
Water Heater Repair
No hot water, leaks, discolored water, or a pilot that won't stay lit — we diagnose and fix it.
Tankless Upgrades
Endless hot water and lower standby losses with a professionally installed tankless system.
Replacement
Gas and electric tank replacements sized to your household's real hot-water demand.
Hard-Water Care
Flushing and maintenance that fights the scale buildup San Antonio's water is famous for.
Simple, Transparent Process
How Glacier Gets It Done
1
Book in Minutes
Call or schedule online and we'll lock in an arrival window that fits your day — often same-day for urgent no-cool and no-heat calls.
2
Upfront Diagnosis
A certified technician inspects your system, pinpoints the real problem, and explains your options with honest, upfront pricing before any work begins.
3
Done Right the First Time
We complete the repair or install with quality parts, protect your home, clean up fully, and back the work with our workmanship guarantee.
The Glacier Difference
Why San Antonio Trusts Glacier for Water Heaters
Certified & Background-Checked
Every tech is trained, vetted, and uniformed.
24/7 Emergency Response
We answer day or night when comfort can't wait.
Upfront, Honest Pricing
Clear quotes before we start — never a surprise.
4.9★ Google-Rated
687+ San Antonio homeowners and counting.
Local & Family-Owned
No call centers, no private equity — just neighbors.
Workmanship Guarantee
We stand behind every repair and installation.
San Antonio homeowners rate our water heaters service
4.9
Google Reviews · 687 reviews
Why homeowners choose Glacier
Consistently praised for fast response, friendly certified technicians, honest recommendations, and clean, on-time installations — with maintenance plans that keep San Antonio homes comfortable year-round.
5
Replaced our 14-year-old system with a high-efficiency unit. The crew was clean, on time, and walked me through everything. Our summer electric bill dropped noticeably.
DCDavid Cortez
5
Honest company. They could have sold me a whole new system but instead fixed the actual problem for a fraction of the cost. That earned my business for life.
AWAngela Whitfield
5
Signed up for the Glacier Club after a tune-up. The tech found a weak capacitor before it failed. Exactly the kind of proactive service you want in the middle of a Texas summer.
RCRamiro Cantú
5
Professional, on time, and knowledgeable about our older Alamo Heights home. Explained the ductwork options clearly with no pressure. Highly recommend.
JBJessica Boone
5
Installed a mini-split in our garage workshop. Quiet, efficient, and the install looks factory-clean. Couldn't be happier.
THTomás Herrera
Water Heaters — Common Questions
Tankless units cost more upfront but deliver endless hot water, last longer, and save space and standby energy. Tank units are cheaper to install. We'll size the right fit for your home and budget.
Hard water accelerates scale buildup inside the tank and on heating elements, reducing efficiency and lifespan. Annual flushing makes a real difference here.
Explore More Services
Serving all of Greater San Antonio
Need Water Heaters in San Antonio?
Call now or schedule online — we'll get your comfort back fast.