Copper re-pipes
Whole-house repiping in copper — the fix when the galvanized is finally rusting through and every fixture in the house runs brown.
Licensed in San Mateo since 2007
You get the license holder, not a call center. Scott Grant has held CSLB #890480 since January 2007, and 49 of his jobs are on file as pulled permits — water heaters, copper repipes, sewer laterals, gas lines.
A permitted water heater or sewer lateral is the one your buyer’s inspector cannot argue with. Free estimates.
What we do
Grant Plumbing is a C-36 plumbing contractor. The work below is the work actually listed on the company’s own listing and on its public permit record.
Whole-house repiping in copper — the fix when the galvanized is finally rusting through and every fixture in the house runs brown.
Standard tank swaps, tankless conversions, and commercial units. Replacements are pulled as permitted work.
Sewer lateral replacement and underground construction, including trenchless work so the driveway and the front lawn stay where they are.
New gas runs for a range, a heater or an outdoor kitchen, and repairs on existing lines. Permitted gas and piping is a category on the company’s own permit record.
Find the leak before opening the wall, and camera the sewer line before anyone quotes you a trench. Both are on the service list.
General service and repair, plus the rough and finish plumbing on a remodel or a new build.
About
Grant Plumbing is a sole ownership registered at 990 Shoal Drive in San Mateo, and Scott Grant is the license holder. The state issued C-36 license #890480 on 31 January 2007 and it has been current ever since.
The reason that matters on a repipe or a sewer lateral: those jobs need a permit, an inspection and a license number on the paperwork. Forty-nine of this company’s jobs are on the public permit record across San Mateo County and down the Peninsula. When you sell the house, that record is what an inspector and a buyer’s agent go looking for.
Check it yourself in about a minute: search license #890480 at cslb.ca.gov. It shows current and active, C-36 Plumbing, and a $25,000 contractor’s bond with Merchants Bonding Company.
In their words
“Grant Plumbing has a great team that does basic plumbing to top-tier level plumbing (copper re-piping, sewer work, water heaters, etc). We called Scott for help with a fine finish installation and…”Cynthia H.January 2024
“Scott Grant is probably the best and most affordable plumber you’re gonna find in the area. He and his guys are top notch and they know what they’re doing.”Prakash S.July 2018
“I recommend Scott highly. I found him on Yelp (tons of stellar reviews), after having a severe clog affecting the whole house.”Lindy K.July 2013
Reviews as published on the company’s listing, quoted as written. The full listing runs 4.5 stars across 22 reviews.
Where we work
Cities where Grant Plumbing has pulled permits on public record:
Not on the list? Call and ask — this is where permits happen to be on file, not a boundary line.
Free estimate
Estimates are free. Call during shop hours and you will get a real answer about what the job takes.
990 Shoal Dr
San Mateo, CA 94404
Monday to Friday, 7:00 a.m. – 5:00 p.m.
Saturday and Sunday closed
CSLB #890480 · C-36 Plumbing
Current and active, held since 2007
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