Highland Plumbing Company · HQ
HIGHLAND PLUMBERS. RIGHT HERE AT HOME.
From East Highlands Ranch to Base Line.
Slab leaks, tankless installs, whole-house repipes, sewer lining, and full bathroom remodels.
SAME-DAY SERVICE
LICENSED & INSURED
UPFRONT PRICING
BASED IN HIGHLAND
Why Choose Us
YOUR HOMETOWN PLUMBING CREW
Highland is home base. That means shorter drive times, faster service, and a crew that already knows the tract you live in.
We live where you live
Grand Plumbing is based right here in Highland. Our shop, our trucks, and our crew are minutes from your street, not stuck on the 210 coming out of another city.
East Highlands Ranch pressure fixes
The tracts up by Greenspot and Church see high street pressure. We swap out failed regulators and dial in the whole house so fixtures stop leaking six months later.
Hard water solutions that actually work
East Valley Water District runs mineral-heavy. We install softeners sized for real household use and swap out heaters clogged with scale before they flood a garage.
Licensed & insured
LIC #1082797. Neighbors serving neighbors, with the paperwork to back it up.
Featured Plumbing Services
What we get called for most in Highland.
Featured Remodeling Services
Bath remodels and ADU builds done right the first time.
NEED A HIGHLAND PLUMBER TODAY?
We're the truck already on your side of town. Call and we'll roll.
(909) 222-9629Customer Reviews
HIGHLAND NEIGHBORS WE'VE HELPED
From the crew
PLUMBING FOR THE TOWN WE LIVE IN
Highland is home. Grand Plumbing was started here, the trucks park here overnight, and most of our guys grew up somewhere between Base Line and Greenspot. That changes how we work in this town. When a call comes in from a Highland address, we're not fighting freeway traffic from another county. We're usually the closest truck on the map.
Highland's housing stock is a wide mix, and each pocket has its own quirks. The older north side near Base Line and Palm has a lot of 1940s and 50s homes with galvanized supply lines that are on borrowed time. When those come apart, they usually come apart all at once, which is why we've done a lot of PEX repipes up in that stretch. Down in the flats around the 210, you'll see 60s and 70s slab tract homes where copper is starting to pin-hole, especially in kitchen loops.
Then there's East Highlands Ranch and the newer stuff up by Greenspot, Church, and Boulder. Those are mostly 90s and 2000s builds on higher elevation, and they see real pressure spikes from EVWD. A pressure regulator handles it, but once that regulator gets past ten years it starts letting street pressure through and every fixture in the house pays for it. Half our house-call estimates in that zone end with a new PRV.
Water in Highland is hard. East Valley Water District serves most of the city, and the mineral load is real. If you've watched a set of new fixtures scale up in a year, or you're on your third tankless flush kit, that's the water talking. A properly sized softener changes the whole picture, and we install them without oversizing you into a bigger unit than you actually need.
Beyond the everyday service work, a big chunk of our business here is remodels and ADUs. Highland lots tend to have room, and a lot of homeowners are adding detached ADUs or converting garages for family or rental income. We handle the plumbing scope from meter upsize through final trim, and we coordinate the county inspections so you don't have to. Bathroom remodels are the other big one, from a straightforward guest bath refresh to a full primary suite gut with a curbless shower and a soaking tub.
If you live in Highland and you need a plumber, call the company that actually lives here too. That's us.
Service Area
NEARBY CITIES WE SERVE
Redlands
Historic Mill District and citrus-belt homes
San Bernardino
Older grid, mixed eras, Bunker Hill basin water
Mentone
Foothill bungalows and Mill Creek homes
Yucaipa
Foothill homes and Wildwood Canyon properties
Loma Linda
University-area rentals and slab tract homes
Rialto
60s tracts and newer builds north of the 210
READY WHEN YOU ARE.
Call or email and we'll send a Highland tech to your door with a real quote, not a guess.
FAQ.
Common questions from Highland homeowners. Don't see yours? Give us a call.
01Are you actually based in Highland?
Are you actually based in Highland?
Yes. Grand Plumbing is a Highland company. Our owner Wade Grand lives and works here, our shop is here, and most of our crew are Highland or neighboring IE folks. When you call a local number and get a truck from down the street, this is why.
02Why is my water pressure so high in East Highlands Ranch?
Why is my water pressure so high in East Highlands Ranch?
Homes above about 1,400 feet elevation in Highland tend to see higher street pressure from EVWD, especially in the newer tracts up by Greenspot, Church, and Boulder. Anything over 80 PSI stresses fixtures, water heaters, and washing machine hoses. A pressure regulator (PRV) is the fix. Most of them fail quietly around the 10-year mark.
03Do you handle slab leaks in Highland tract homes?
Do you handle slab leaks in Highland tract homes?
Yes, that's a big part of what we do here. A lot of Highland homes from the 80s and 90s were built on slab with copper supply lines that are now hitting the end of their useful life. We locate the leak without tearing up your whole floor, then reroute through the attic when it makes sense.
04Can you fix or install tankless water heaters?
Can you fix or install tankless water heaters?
We install, descale, and repair tankless units all over Highland. Our water is hard enough that even good units need a flush every year or two. We set customers up on a simple maintenance cycle so they get the full life out of the unit.
05Do you do bathroom remodels or ADU plumbing in Highland?
Do you do bathroom remodels or ADU plumbing in Highland?
Yes. A lot of Highland lots have room for a detached ADU or a JADU garage conversion. We handle the full plumbing scope from meter upsize through final fixtures, and coordinate with the county on inspections. Bathroom remodels are our other big lane, from a single guest bath refresh to a full primary suite gut.
06How fast can you get to my Highland house?
How fast can you get to my Highland house?
Faster than pretty much anyone else, because we're already here. Most Highland calls before noon get a same-day slot. Anything up in the far East Highlands Ranch corners might roll into a first-morning appointment if we're already booked out.