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Navien water heater

Water Heater Installation in San Francisco

From tankless units in tight Victorian utility closets to heat pump water heaters in Sunset garages, we install the right water heater for your SF home. Every installation includes water pressure testing to protect your new unit from SF's demanding water system.

SF-Specific Considerations for Every Installation

Pressure Testing is Standard

SF's water pressure frequently exceeds 130 PSI — far above the 80 PSI maximum safe limit. Installing a new water heater without testing and managing this pressure means your new unit will fail years ahead of schedule. We test on every single installation and install a PRV if needed.

  • Water pressure test included in every SF water heater installation
  • PRV (pressure-reducing valve) installed when pressure exceeds 80 PSI
  • Thermal expansion tank included — SF homes with check valves legally require one
  • High pressure destroys tank seals and appliance connections quickly

Safe pressure: 65 PSI · What we often see in SF: 130–140 PSI

Space-Saving Solutions

Victorian flats, Edwardian row houses, and compact Sunset bungalows often have utility closets designed for nothing more than a small tank heater. We specialize in wall-mounted tankless units and compact heat pump models that deliver more hot water while taking up less space.

  • Wall-mounted tankless units free up the entire floor of your utility closet
  • Compact heat pump models fit standard garage depths in many Sunset and Richmond homes
  • We've installed in utility closets as small as 12 square feet
  • All venting coordinated with your home's specific wall and ceiling layout

Compact installations designed for SF

SF Permit Compliance

The San Francisco Department of Building Inspection requires permits for all water heater replacements, including seismic strapping, expansion tanks, and proper venting. We manage the entire process — from filing to final inspection.

  • We pull the DBI permit and handle all required documentation
  • Seismic strapping required by SF code — included on every installation
  • Thermal expansion tank required under SF plumbing code for all closed systems
  • We schedule and attend the final inspection so you don't have to

We manage the entire SF DBI process

Our SF Water Heater Installation Process

1

Pressure Test & Assessment

Before touching your existing unit, we test your water pressure. If it's above 80 PSI, we install a pressure-reducing valve as part of your installation. This protects everything downstream — not just the water heater.

2

Right-Sizing for Your Home

We calculate your home's actual hot water demand — number of occupants, peak usage times, and recovery rate requirements — to spec the correct unit. Most SF homes are undersized and frustratingly run out of hot water.

3

Code-Compliant Installation

We handle all DBI permits, seismic strapping, expansion tanks, and proper venting. Everything done to SF code, protecting your home and its resale value.

4

Clean Handoff

We protect your home, remove your old unit for responsible disposal, walk you through the new system's controls, and leave cleaner than we arrived.

Water Heater Options for SF Homes

Tankless Gas (Most Popular in SF)

Wall-mounted Navien and Rinnai units are the standard choice for SF Victorian homes — endless hot water, no standby losses, and no floor space used. Perfect for the typical SF utility closet.

Heat Pump Water Heaters (Sunset & Richmond)

For Sunset and Richmond homes with garages, heat pump units from Rheem ProTerra and A.O. Smith are 3-4x more efficient than standard electric tanks and qualify for significant rebates.

Combi-Boilers (Heat & Hot Water)

For homes with radiant floor heating, a combi-boiler handles both space heating and domestic hot water in one unit, eliminating the need for a separate water heater entirely.

SF Water Heater Installation FAQs

Need a New Water Heater in San Francisco?

Same-day installation available for most SF neighborhoods. We'll test your water pressure, spec the right unit, and handle all the permits.

Serving All San Francisco Neighborhoods • Licensed & Insured • 20+ Years Experience