Water Heaters Only, Inc. South San Francisco provides the quickest and the best quality water heater repairs and replacements for the lowest costs. We’re available 24 hours a day, 7 days a week for assistance with your water heater or to schedule a service appointment for our technician to visit your home (650) 342-7824.

Water Heater Replacements

Water Heater Installations

Tankless Water Heaters

Commercial Water Heaters

Gas Control Valve Repairs

Thermo-couple replacements

Pilot Assembly Replacements

Our technicians specialize in South San Francisco water heater service including repairs for pilot issues, flex lines leaks, combustion issues, burner replacement, complete water heater replacements and tankless water heater systems. Your Water Heaters Only, Inc. technician will arrive with the experience and most common parts to diagnose and repair your water heater the same day. If a replacement is required our service vans are stocked with the most common tank sizes and your new water heater can be installed that day during our 1st trip, saving you time and money.  

Available 24/7

Quick Same Day Service

No Extra Charges Evening, Weekends or Holidays

Licensed, Bonded, Insured #374573

Clean Respectful Technician

Factory Trained and Drug Tested

Water Heaters Only, Inc also installs commercial water heaters. If you are having a problem with a commercial water heater, please contact us. We can quickly and efficiently service or replace your commercial water heater to keep your business running smoothly. We have many clients in South San Francisco area who own restaurants, beauty salons, and other businesses that rely on hot water to operate. We understand the need for quick South San Francisco water heater service and being able to work around business hours. That is why we stay open 24/7 and don’t charge extra for weekends and holidays. At Water Heaters Only, Inc. we’re always happy to schedule a convenient time for your water heater replacement or repair. This can be done during off hours to help to limit the effects of having no hot water, which could result in a loss of income for your business.

Heavy Duty Gas Commercial Water heaters

Light Duty Gas Commercial Water Heaters

Commercial Gas Tankless Water Heaters

Point Of Use Electric Water Heaters

Re-circulation Pumps


Water Heaters Only, Inc. is highly rated on Angie’s List, Yelp and Google. Browse our reviews from customers about our South San Francisco water heater service and learn for yourself why our customers rate us 5 stars!