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
Fast, Reliable General Contractor Across Colma
Finding a general contractor in Colma who understands the town’s unusual landscape is harder than it should be. Most contractors treat Colma like any other Bay Area suburb. They miss what actually matters here: the cemetery-adjacent parcels, the fog that never really dries out, and the 1950s stucco homes that hide decades of deferred maintenance behind their walls. We’re Millwright Builders, led by Noel Castañeda, and we work in Colma regularly enough to know what a permit on a burial-adjacent lot requires and what a fog-belt foundation actually looks like after sixty years. Call (866) 925-0334 and we’ll talk through your project without the sales script.
Why Millwright Builders Is Colma’s Preferred General Contractor Company
Colma homeowners call us because we already know the town’s quirks before we walk the door. Sterling Park, the residential pocket off El Camino Real, is mostly post-1950s single-story stucco on small lots. Those homes share the same aging wiring, the same undersized framing, and the same moisture issues in the crawlspace. We see them in every house, so our bids account for them from the start instead of pretending they’ll never surface.
Colma is not Daly City or South San Francisco. The cemetery land doesn’t just shape the geography. It shapes the permitting process. When a remodel sits near a memorial park boundary, the building department can require archaeological monitoring before we even dig a footing. That requirement catches most contractors off guard. It doesn’t catch us, because we’ve navigated it before and we write the scheduling and cost into the initial scope so the project doesn’t stall.
Noel Castañeda runs every Colma project with the same rule: inspection first, written allowances second, approval in writing before anything changes. That’s how a homeowner avoids the classic Colma remodel trap where a kitchen demo turns into a surprise rewiring job with a five-figure change order nobody approved.
Styles & brands we work with
Residential General Contractor in Colma
Residential General Contractor work in Colma means taking an older home down to its bones and rebuilding it to current code without letting the fog dictate the schedule. We handle kitchen and bath remodels, whole-home renovations, room additions, and ADU construction. A typical kitchen remodel in Colma runs $14,000 to $45,000 depending on whether we’re swapping finishes or relocating plumbing and electrical. Bathroom remodels run $9,000 to $28,000. Home additions start around $45,000 and can reach $130,000 when structural work and foundation upgrades are involved.
Colma’s housing stock is almost entirely original. That means when we open a wall, we expect to find cloth-wrapped wiring, not Romex. We plan for it. We write a change-order process into the contract so when the inevitable discovery happens, the line item is approved before we touch it. No surprise invoices.
Kitchen and Bath Remodels
Most Colma kitchens were built before microwave drawers, vented ranges, and 36-inch counter depths were standard. Opening the wall means upgrading circuits, moving drain lines, and often sistering termite-damaged framing. We quote the visible scope and we budget a written allowance for the concealed scope. When we find something, you see the number before we proceed.
Additions and ADUs
A room addition in Colma almost always triggers foundation work and a survey, especially if the lot is near a cemetery boundary. We pull permits, schedule the archaeological monitor if required, and keep the footings moving so the fog doesn’t sit on open excavation longer than necessary.
Hire a General Contractor in Colma
Hire a General Contractor in Colma when the project spans more than one trade and you don’t want to spend your weekends chasing three separate crews. We run one contract across carpentry, electrical, plumbing, drywall, tile, roofing, and hardscape. Colma homeowners call us for jobs that are too big for a handyman and too complicated for a single-trade specialist.
On a 1950s stucco ranch in Sterling Park, our crew opened the kitchen wall to find exactly what we expected: cloth-wrapped knob-and-tube wiring and termite-damaged framing. We wrote a change order for full rewiring and sistered joists, got the client’s written approval, then passed inspection sign-off before hanging drywall. That is how every Colma job should run, and that’s how we run it.
Full-Scope Renovation
From roofline to back patio, one contractor, one conversation. We specify the brand, explain the trade-off, and stand behind the install. Whether it’s James Hardie siding on a fog-exposed wall or a Cambria countertop in a kitchen that sees daily use, we don’t hand you a thin catalog and walk away.
Exterior and Hardscape
Colma’s damp, windy summers punish decks, fences, and patios. We build exterior surfaces with slip-resistant finishes and moisture-rated materials because we know what a Colma winter does to a cheap pine deck. Paver patios here run $3,500 to $11,000 depending on grade and drainage requirements.
Trusted Brands We Service in Colma
We stock and install materials from a curated network that includes GAF and IKO roofing, KraftMaid and Wellborn cabinetry, and Cambria and Caesarstone countertops. When a Colma roof needs replacement in the fog belt, we’re pulling from Atlas or IKO shingle lines with warranty coverage that actually applies to coastal exposure. Your renovation shouldn’t require you to become a materials expert. We give you two or three solid options per trade, explain the trade-off, and stand behind whatever you choose.
See the difference
Before
After
Before
After
Before
AfterCommon General Contractor Problems We See in Colma Homes
- Skipping the pre-bid inspection. A contractor who bids sight-unseen on a Colma home is guessing. We walk every project before we quote, and we open access panels or crawlspaces where the seller permits. The goal is to find the undersized framing before demo, not after.
- No written allowances for finishes. A kitchen quote without an allowance line for KraftMaid cabinets or Cambria counters defaults to the cheapest box-store option. Then the homeowner sees the upgrade invoice and feels ambushed. We write fixture and finish allowances into the contract so selections are real, not hypothetical.
- Ignoring the fog during rough-in. Colma sits in the fog belt just south of San Francisco. Moisture moves through walls differently here. We inspect vapor barriers before drywall and we don’t close a wall until the rough-in passes a moisture check. A remodel that skips this step grows mold behind new paint.
- Unexpected excavation near cemetery land. With 73% of Colma’s land dedicated to burial grounds, any residential lot can sit closer to interment infrastructure than the property line suggests. Digging a footing or trench can hit old decorative stonework or require archaeological monitoring. We coordinate with cemetery maintenance crews and the building department before the shovel goes in.
Pricing for General Contractor in Colma, CA
Colma pricing tracks the Bay Area market, but the cemetery-adjacent permitting and fog-belt moisture requirements add real line items that a Daly City quote won’t include. Here’s what we typically see:
| Project | Colma Price Range |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Home Addition | $45,000 – $130,000 |
What moves the number is what’s behind the walls. A kitchen that needs full rewiring and joist sistering lands at the top of the range. A cosmetic swap with no structural surprises lands at the bottom. Every Colma quote we write includes a written change-order clause: any discovery gets priced and approved in writing before work proceeds. Call (866) 925-0334 for a free estimate and a line-item scope, not a round number.
We Also Serve Cities Near Colma
Our crews work throughout northern San Mateo County. Beyond Colma, we serve General Contractor projects in Broadmoor, Daly City, South San Francisco, and Pacifica. If you’re just over the border, call and ask. We’d rather add a short drive than see you hire someone who doesn’t know the fog belt.
Serving Colma, CA — Our Local Coverage Area
We’re based in the Colma area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs About General Contractor in Colma
Expect the city to potentially require archaeological monitoring before excavation begins. Because 73% of Colma’s land is cemetery, any residential remodel permit can trigger this requirement if the dig sits near burial-adjacent parcels. We build the scheduling and monitor cost into the initial scope so the job doesn’t stall mid-footing. Call (866) 925-0334 if your project involves trenching or foundation work near a memorial park boundary.
We write an allowance line item into the contract that names the product category and sets a realistic dollar range. For a Colma kitchen, that might be a KraftMaid cabinet allowance and a Cambria or Caesarstone counter allowance. When you select outside the allowance, the delta appears as a written change order before we order anything. You approve, then we buy. No default-to-cheapest, no surprise upgrade invoice.
A permit triggers the code upgrades that protect you and the next owner. Once a wall is open in a post-1950s Colma stucco home, the inspector will require current-code wiring, smoke detector placement, and often shear-wall or foundation upgrades. Skipping the permit saves money now and creates a liability later. We pull permits on every structural job and we stand behind the inspection sign-off.
Cloth-wrapped knob-and-tube wiring, termite-damaged framing, undersized joists, and failed vapor barriers are the four we see most. The damp fog keeps crawlspaces wet, which accelerates termite damage in the sill plates. We walk the crawlspace during the pre-bid inspection and write remediation into the quote when we can see it. What we can’t see becomes a written change order, not a surprise.
We inspect and often replace the vapor barrier during rough-in, we seal exterior penetrations before drywall, and we specify fog-rated exterior materials where moisture sits on surfaces. Colma’s cool, windy summers keep exterior walls damp, so we don’t build to a Sacramento standard and hope for the best. We build to the material’s standard, not just to code.
If you’re planning a remodel, addition, or ADU in Colma, call (866) 925-0334. We’ll walk the property, write a real scope, and give you numbers you can take to the bank. Estimates are free. The conversation is straight.
Written by the team at Millwright Builders, led by Noel Castañeda, serving Colma and surrounding San Mateo County communities.