Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Windows & doors
Driveway & pavers
FenceFree written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Why San Mateo Homeowners Choose Delta Construction
We provide independent San Mateo Delta service across the city, from cartridge swaps in a Baywood bungalow to full Delta shower system installs in Hillsdale remodels. San Mateo Construction is not a Delta authorized dealer. We’re a licensed general contractor that’s worked on hundreds of Delta faucets and shower valves in this city, and that independence means we recommend what actually fixes the problem, not what a manufacturer program tells us to push. Most Delta repair calls we get are Monitor valve cartridges and kitchen sprayer leaks, and we keep the parts on hand to handle them fast. Call (855) 901-7266 for a free estimate on any Delta repair or remodel work.
Why Trust San Mateo Construction for Your Delta Construction?
Delta is the most common fixture brand we pull out of San Mateo walls, which means our team has seen just about every failure mode these valves and faucets can throw at a homeowner. Noel Carrington grew up in the Highlands-Baywood Park area, a few blocks from Coyote Point, and spent weekends helping his father pour concrete footings for a backyard workshop. That early exposure to how mechanical systems work, from rough-in plumbing to finish trim, set the pattern for how we approach Delta work: find the real cause, fix it with the right part, and leave the wall cleaner than we found it.
Our plumbers and finish carpenters know the Delta Lahara line from the trim down to the cartridge stop. We’ve replaced enough Monitor 13 and 14 series pressure-balance cartridges to spot a failing unit by sound before we even pull the handle. When you hire us for Delta service in San Mateo, you’re getting a team that doesn’t guess at codes or part numbers. We use genuine Delta RP cartridges and repair kits where tolerances matter, and we’ll tell you plainly when a 22-year-old valve body isn’t worth sinking more money into.
We pull permits where San Mateo’s building department requires them, and we schedule our Delta work around the city’s wet season. Rain delays from November through March are a reality on the Peninsula, and we plan rough-in plumbing and shower valve replacements so you’re never left with a gutted bathroom and no working shower.
Styles & brands we work with
Common Delta Construction Problems We Fix in San Mateo
- Monitor 13/14 shower valve pressure-balance failure. You’re in the shower, someone flushes a toilet or runs the kitchen tap, and the water swings hot or cold. That’s a seized or worn pressure-balance cartridge inside the Monitor valve. San Mateo’s water has enough mineral content that these cartridges bind up over time, especially in homes that still have original 1990s plumbing. We stock the genuine Delta RP cartridges and can usually do this job in under two hours without opening any tile.
- Kitchen pull-down sprayer leaks at the head or diverter. Delta pull-down faucets, including the Classic and Foundations lines, develop leaks where the spray head connects to the hose or at the diverter that switches between stream and spray. Mineral buildup from Peninsula water is the usual culprit, along with a worn O-ring inside the head. We replace the sprayer assembly and check the supply lines while we’re under the sink.
- Lahara bath faucet drips and low flow. The widespread Lahara faucets installed in hundreds of 1990s and early 2000s San Mateo remodels eventually wear out their ceramic cartridges. You’ll see a drip at the spout or reduced flow that isn’t fixed by cleaning the aerator. New genuine Delta cartridges bring the flow back. If the finish on the trim is also failing, we’ll show you the cost of trim replacement versus swapping the whole faucet.
- Corroded shower trim and stripped handle sets. Older Delta shower valves in San Mateo’s coastal fog belt struggle with corrosion. The persistent marine moisture, especially on north-facing walls, eats at chrome trim and loosens the set screws that hold the handle in place. Temperature control gets sloppy. We carry replacement trim kits and handle assemblies and can refinish a rough-in valve without opening the wall.
- Stuck or stiff Delta valve stems on old tub/shower combos. Homes in the eastern flats and San Mateo Park with original 1960s and 70s tub/shower valves often have Delta stems that seize from hard-water scale. The packing nut gets brittle, the stem won’t turn, and eventually the faucet won’t shut off completely. We break these down, replace the stems and seats with OEM or quality aftermarket parts, and set the trim correctly.
Delta Parts & Our Repair-vs-Replace Approach
We use genuine Delta OEM cartridges, repair kits, and trim components because the tolerances on a pressure-balance valve are unforgiving. An aftermarket cartridge that’s a few thousandths off will bind in the valve body and cause the same temperature swings you called us to fix. Our service trucks carry Delta RP cartridges for the Monitor 13 and 14 series, plus aerators, O-rings, and sprayer head assemblies for the most common kitchen and bath faucets. That keeps turnaround fast on most San Mateo calls.
Where we turn to aftermarket parts is cosmetic trim, escutcheons, and handles, particularly on discontinued Delta finishes. Those parts don’t touch water pressure or temperature control, and a good aftermarket match costs less than hunting down a discontinued OEM trim kit. When a valve body is corroded, a cartridge replacement is just buying time. In those cases we’ll pull the escutcheon, show you what’s underneath, and give you a honest repair-versus-replace number before we touch anything. Call (855) 901-7266 and we’ll walk you through the exact numbers for your fixture.
Our Delta Service Process – Step by Step
- 1
Diagnosis. We run the shower or faucet through its settings, test the pressure balance by cycling other fixtures in the house, and check the valve body for corrosion or scale. On a Monitor 14 temperature-swing issue, we’ll confirm the cartridge is the cause before we pull anything apart.
- 2
Repair or replacement. If it’s a cartridge, sprayer head, or stem, we swap it with the correct Delta OEM part. If the valve body is shot or the finish is gone, we’ll walk you through Delta replacement options that work with your existing plumbing and tile.
- 3
Testing. We turn the water back on, cycle the shower valve through hot and cold, run the kitchen faucet to confirm no pressure swings, and check every connection for drips. Then we clean up the work area.
- 4
Warranty and follow-up. We stand behind our Delta repairs with a workmanship warranty, and we record the part numbers we installed so future service calls start with a clear picture of what’s in your walls.
Delta Products We Service & Install in San Mateo
Our San Mateo teams work on the full range of Delta kitchen and bath fixtures: Lahara widespread and centerset bath faucets, Monitor 13 and 14 series pressure-balance and temperature-control shower valves, Classic and Foundations kitchen faucets with pull-down sprayers, and H2Okinetic shower heads and hand showers. We stock RP cartridges, aerators, sprayer assemblies, and stem rebuild kits on the trucks so we aren’t running to a supply house mid-job. When a remodel calls for new Delta fixtures, we help our clients choose the right trim, valve, and finish for the project, then rough in the plumbing and set everything to spec.
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AfterWe Also Service These Brands
Delta is a big part of our fixture work, but it’s never the only option. We also install and service KraftMaid cabinetry, Cambria and Silestone countertops, and Kohler plumbing fixtures. Noel likes to say, “Tell me what you actually need, and we’ll figure out the right way to build it.” That’s the approach, whether it’s a Delta cartridge swap or a full kitchen build-out with multiple brands in scope.
FAQs – Delta Construction Service in San Mateo
Yes, and the culprit is almost always the pressure-balance cartridge inside your Delta Monitor 13 or 14 series valve. These cartridges use a sliding spool to equalize pressure between hot and cold supply lines. When mineral scale from San Mateo’s water binds the spool, the valve can’t react to sudden pressure drops, and the shower temperature swings. Replacing the cartridge with a genuine Delta RP part usually resolves it in a single visit. Call (855) 901-7266 for a cartridge replacement quote.
In most cases, yes. The Monitor 13 and 14 series valves are designed so the cartridge comes out through the trim plate opening. We shut off the water, remove the handle and escutcheon, pull the old cartridge, clean the valve body, and install the new one. Tile stays intact. There are exceptions where the valve body itself is corroded or the rough-in depth is off, and we’ll tell you that before we start cutting anything. Call (855) 901-7266 and describe your symptoms; we’ll give you a realistic expectation for the job.
No. The leak is almost always a failed O-ring or diverter inside the spray head assembly, not the faucet body. We replace the sprayer head or the quick-connect fitting, flush the supply lines, and check the diverter valve. That repair costs a small fraction of a new Delta faucet. If the faucet body is also showing its age or the finish is worn, we’ll lay out the cost difference and you can decide. Call (855) 901-7266 for an exact price on your model.
We install Delta fixtures in full bathroom remodels throughout Foster City and San Mateo, including walk-in shower builds. If you’re keeping your existing Delta valve body, we can match new trim and handles to it, including brushed nickel, chrome, and matte black finishes. If you’re changing valve types or moving the shower location, we’ll rough in the new Delta valve to spec. A few months back we helped a homeowner in San Mateo’s Baywood neighborhood whose Monitor 14 valve wouldn’t hold temperature. We isolated the failed pressure-balance cartridge, replaced it with a genuine Delta RP cartridge, and swapped the corroded 1990s trim for a new H2Okinetic shower head and handle set. The fix restored stable water temperature and avoided a full valve replacement.
A Belmont Delta service call for cartridge replacement runs $150 to $400 depending on the valve model and whether we need to replace trim at the same time. A full Delta shower valve replacement, which means opening the wall and sweating new pipe, lands between $600 and $2,500. A full walk-in shower remodel with new Delta fixtures, waterproofing, tile, and glass enclosure typically runs $4,500 to $12,000. Call (855) 901-7266 and we’ll give you a written, line-item estimate for whichever path fits your situation.
No. We are an independent general contractor serving San Mateo and the broader Peninsula. We are not a Delta authorized dealer or warranty station. That independence is the point: we recommend whatever fixes your fixture correctly, including telling you when a Delta repair isn’t worth the money and a different approach makes more sense.
Using genuine Delta OEM parts and following the manufacturer’s installation specs keeps most Delta warranties intact for the parts themselves. Our workmanship warranty covers the labor. If your fixture is still under Delta’s limited warranty and we find a defect, we’ll help you understand what Delta covers and what’s on you. We won’t void a warranty by using the wrong part or cutting corners on installation.
Delta Construction Pricing in San Mateo
| Service | Price Range |
|---|---|
| Bathroom Remodel | $9,000 – $28,000 |
| Walk-In Shower Installation | $4,500 – $12,000 |
| Full Kitchen Remodel | $14,000 – $45,000 |
| Cabinet Installation | $4,000 – $13,000 |
These ranges reflect what we see across San Mateo County for mid-range to upscale Delta fixture work. Your final number depends on the size of the space, condition of existing plumbing, tile and glass choices, and whether we’re replacing one fixture or gutting the room. Estimates are free, and we give you a written line-item breakdown so you know exactly where the money goes. Call (855) 901-7266 to schedule yours.
Book Your Delta Service in San Mateo, CA
If your Delta shower is swinging hot and cold, your Lahara faucet is dripping, or you’re planning a remodel that includes new Delta fixtures, call us. We’ll schedule a diagnosis, give you a written estimate, and get the work done right. Call (855) 901-7266 for a free Delta service estimate in San Mateo.
Written by Noel Carrington, Owner at San Mateo Construction, serving San Mateo and the Peninsula with a full-scope general contracting team from roofline to foundation.