
Plumbing
Plumbing for San Francisco’s older homes.
Twenty licensed plumbers working San Francisco and the Peninsula since 1998, in homes where the plumbing has to be right the first time.
Old buildings fail differently.
Galvanized supply lines sit inside Edwardian flats behind kitchens that were rebuilt twice. Sewer laterals of cast iron and clay were laid more than a century ago and are still the only way out. The hills move enough that the ground under a water line is never quite settled. A system living in those conditions fails differently than one anywhere else, and it is repaired differently too.
We have worked inside these homes since 1998. Twenty plumbers, licensed, bonded and insured in California under CSLB #746000, on single-family homes, multi-unit buildings and commercial property across the city and down the Peninsula. Vehicles arrive stocked, so most service work finishes in one visit, and same-day appointments are available. We work in English and Spanish.
Every estimate follows a visit. We price the work after we have seen it, and the estimate comes to you in writing. Construction and remodel work starts with a walk-through of the site, because a proposal written without one is a budget number rather than a price. Written proposals follow within seven business days, or ten when you have asked us to price fixtures as well.
“I will not hesitate to call them again. The communications, start time, professionalism, workmanship, courteous manner, meticulous attention to detail, and clean up, were an example to other companies and set a gold standard that I doubt can be beaten.”Chris L.Read all 22 testimonials
The work
Start where the trouble is.
Emergency Plumbing
Burst lines, sewer backups and failed water heaters, answered the same day.
Water Heaters
Tank, tankless, hybrid, gas and electric. Repair, replacement and the permits.
Repiping and Water Lines
Whole-home repipes and water service lines, with trenchless where the ground allows.
Leak Detection
Slab and supply leaks located with acoustic equipment, plus leak defense systems.
Drains and Sewer
Camera diagnosis, hydro jetting, and lateral repair in century-old lines.
Fixture Plumbing
Faucets, tubs, showers and toilets, from a cartridge to a custom European install.
Gas Lines
Gas lines from three-quarter inch to three inch, appliance connections and repairs.
Seismic Shut-Off Valves
Automatic earthquake valves fitted at the gas meter, tested on site before we leave.
Plumbing Maintenance
Scheduled inspection of the whole system, sump pumps and backflow prevention included.
Sump Pumps
Sump pumps sized and installed, repaired, and checked before the wet season.
Commercial Plumbing
Restaurants, retail, healthcare and multi-tenant buildings, permits and inspections handled.
Radiant Floor Heating
Hydronic radiant heat designed, installed and commissioned before the slab goes down.
Questions
What clients ask first
That is most of what we do. We have worked inside Victorians, Edwardians and pre-war flats since 1998, on galvanized supply lines, cast iron waste and sewer laterals that predate everyone in the building.
Yes. We install and service custom fixtures from the European and American fixture houses this market specifies, with installed values from $2,000 to $50,000, alongside everyday repairs on the fixtures already in the home.
San Francisco is our primary market and Pacifica is our shop. We also work in Daly City, San Mateo, Menlo Park, Atherton, Belvedere, Berkeley and Piedmont.
Yes. Nigel Mulgrew Plumbing is licensed, bonded and insured in California under CSLB #746000, and every one of our twenty plumbers is licensed.
We do not price work over the phone. Every estimate follows a visit and arrives in writing. For construction and remodel work, a pre-bid walk-through comes first, then a written proposal within seven business days, or ten when fixture pricing is included.

Begin
Tell us about the home. We’ll take it from here.
Add a photo or a short video to the request. It helps us send the right person with the right parts. If water is running now, call us.
