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 Broadmoor
If you’re planning a remodel, addition, or ADU in Broadmoor, the first question isn’t which cabinets or pavers you want. It’s whether your project will clear San Mateo County’s permitting gauntlet and whether the existing structure was ever legal to begin with. We handle both. San Bernardino Contractors manages the full scope of residential work in Broadmoor’s 94015 zip code, from kitchens and baths to second-story additions and detached ADUs, and we know exactly which county departments, fire reviews, and school district sign-offs your job will touch before we ever put a number in front of you. Call (855) 473-5620 for a free estimate that accounts for Broadmoor’s specific permitting and site conditions, not a generic template.
Why San Bernardino Contractors Is Broadmoor’s Preferred General Contractor Company
Broadmoor is an unincorporated island entirely surrounded by Daly City. That one fact changes everything about how a remodel gets priced and permitted here. A contractor pulling a permit for a house across the street in Daly City deals with Daly City’s building department. The same exact scope on your side of the line gets routed through San Mateo County Planning & Building, plus separate fire district, sewer district, and school district reviews. Our team has worked through that stack enough times to know which reviews trigger plan-check comments, which ones add weeks, and which ones we can front-load so the job doesn’t stall. Ruben Castillo leads the team, and he’s the one who walks Broadmoor homeowners through the county process before they sign anything.
We also know Broadmoor’s housing stock better than an out-of-town GC ever could. The homes here are almost all 1940s and 1950s tract stucco over wood frame, built on small, uniform lots. Many still have original single-pane windows, minimal wall insulation, and garage or room conversions that were done without permits decades ago. That last one is the trap. We scope it before we quote.
Styles & brands we work with







General Contractor Services in Broadmoor
General Contractor Services in Broadmoor means something different than it does in a newer subdivision. Most of the work we take on here falls into three buckets: whole-home remodels of mid-century tract homes, second-story additions built over existing single-story footprints, and detached ADUs or garage conversions on lots that already feel tight. A typical kitchen remodel in Broadmoor runs $14,000 – $45,000, a bathroom remodel $9,000 – $28,000, and a full home addition $45,000 – $130,000. Those ranges assume we’re working around the existing stucco shell, which we usually are, because Broadmoor is fully built out. There’s little vacant land left, so nearly every project is a remodel, addition, or rebuild on an existing lot.
Whole-Home Remodel Scope
A whole-home remodel in Broadmoor often starts with opening walls to inspect what’s behind the stucco. No moisture barrier on a slab, unpermitted wiring from a 1970s garage conversion, headers that were never load-rated. We find these and price the fix before demolition starts, so the number you approve is the number you pay.

Additions and Second-Story Builds
Second-story additions are common here because lots are small and setback rules leave little room to build outward. Before we quote, we confirm with San Mateo County whether the existing first floor can carry the load and whether any prior garage or room conversion needs to be legalized or demolished first. That legalize-or-demolish piece can add real scope, and we’d rather tell you on day one than surprise you mid-project.

What happens when you call
- 1
A real person answersNo phone trees — you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Construction Company in Broadmoor
Construction Company work in Broadmoor frequently means building on a lot that wasn’t designed for what you want to add. Detached ADUs, shops, and outbuildings trigger grading and drainage review, septic and sewer setback checks, and fire district access requirements. We handle all of it. San Bernardino Contractors acts as the single accountable builder across every phase, so you’re not calling a roofer for the shell, a cabinet shop for the interior, and a hardscape crew for the patio. One contractor, every phase.
Detached ADUs and Outbuildings
An ADU in Broadmoor typically runs $90,000 – $220,000 depending on whether you’re doing a site-built structure or a prefab unit. We can build either. We have access to prefab ADU solutions from Abodu, Dvele, Mighty Buildings, and Studio Shed, and we self-perform the site work, foundation, and utility connections either way. You pick the brand, we handle the build.
Grading, Drainage, and Site Prep
Wind-driven rain off the San Bruno Mountain gap doesn’t just soak siding. It pools against foundations on flat Broadmoor lots and rots trim, flashing, and sill plates. Before we pour a slab or set a prefab ADU, we check the lot’s drainage pattern and correct any grade that sends water toward the structure. That work gets priced into the quote, not added later.
Trusted Brands We Service in Broadmoor
We’re authorized to install and service over 50 named industry brands across every trade category, which means you choose the finish level and we build around it. For Broadmoor roofing, we install GAF and CertainTeed systems, both of which hold up well against salt-laden coastal fog when detailed correctly at eaves and valleys. For plumbing fixtures, we work with Grohe and Sterling across entry-level and upper-mid price points, so a Broadmoor bathroom remodel can hit $9,000 or $28,000 depending on what you select, not on what we happen to stock. We keep common replacement parts and trim profiles on hand for Broadmoor jobs so window and door packages don’t stall waiting on a supplier.
See the difference
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After
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AfterCommon General Contractor Problems We See in Broadmoor Homes
- Unpermitted 1950s garage conversions. The classic Broadmoor headache. A homeowner converted the garage decades ago without county permits, and now a kitchen addition or second story can’t get approved until the county either legalizes it or we demolish it. We pull the property file, confirm what was permitted, and scope the legalize-or-demolish work before quoting anything else.
- Salt-fog exterior decay. Broadmoor sits in the foggy, wind-exposed gap between San Bruno Mountain and the coast. Paint fails faster here, wood rot shows up at window frames and trim first, and fasteners corrode. We specify stainless or coated fasteners and primed trim on every Broadmoor exterior job.
- Missing or failed slab moisture barriers. Broadmoor’s original slabs were poured without vapor barriers, which means a remodel that opens up a floor often finds moisture coming up through the concrete. We test for it and correct it with an underlayment or barrier before flooring goes down.
- County permit stacking. San Mateo County is the issuing authority, but fire, sewer, and school district reviews run in parallel. We sequence those reviews so plan-check comments from one agency don’t hold up work approved by another.
Pricing for General Contractor in Broadmoor, CA
Here’s what Broadmoor homeowners should expect to budget for the most common scopes we build here. These are real ranges based on the county-approved work we do on mid-century tract lots in the 94015 zip code. Your final number shifts with finish selections, site conditions, and whether any unpermitted prior work needs legalization.
| Project Scope | Typical Broadmoor Range |
|---|---|
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Roof Replacement | $8,000 – $20,000 |
| Window Replacement | $4,500 – $15,000 |
Every estimate we write for Broadmoor is a fixed, line-item quote. No change orders unless you change the scope, and no permits pulled without you seeing the county submittal list first. Call (855) 473-5620 to schedule a free estimate and we’ll walk the property with you, check for permit history on the existing structure, and give you a number you can actually plan around.
We Also Serve Cities Near Broadmoor
While Broadmoor is our focus for this page, our General Contractor crews also work in Broadmoor‘s surrounding communities including Colma, Daly City, South San Francisco, and Pacifica. The permitting path changes at each city line, and we adjust scope and submittals accordingly.
Serving Broadmoor, CA — Our Local Coverage Area
We’re based in the Broadmoor 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 Broadmoor
San Mateo County issues permits for Broadmoor because the community is unincorporated. That means your addition goes through San Mateo County Planning & Building, plus separate fire district, sewer district, and school district reviews that a Daly City job would never see. We handle every submittal and track each review so you don’t have to. Call (855) 473-5620 and we’ll walk you through the exact path for your project.
The county will often require the unpermitted work to be legalized or demolished before new permits can be approved. That legalize-or-demolish scope gets priced into our quote up front, not discovered mid-project. We pull the property file and check the county’s records before we give you a number, because the cost difference between legalizing and demolishing can be substantial.
It adds cost to exterior details and site drainage. Salt-laden fog accelerates exterior paint failure and fastener corrosion, so we spec stainless or coated fasteners, primed trim, and proper flashing at eaves and window frames. Wind-driven rain pools against foundations on flat lots, so grading and drainage correction gets priced into additions and ADU work rather than billed as a surprise later.
Yes. Before we pour a slab or set a prefab unit, we check the lot’s drainage pattern and correct any grade that sends water toward the structure. Wind-driven rain off the San Bruno Mountain gap is a real issue on Broadmoor’s small, flat lots, and a foundation that sits in pooled water will fail early. Drainage work is included in our ADU and outbuilding quotes.
A typical Broadmoor addition quote includes the full line-item scope: county permit submittals, demolition, foundation, framing, roofing, windows, mechanical rough-in, drywall, finishes, and a written allowance for your selected brand packages. A home addition in Broadmoor runs $45,000 – $130,000; an ADU runs $90,000 – $220,000. Call (855) 473-5620 for an exact quote, and we’ll account for Broadmoor’s county permitting and any unpermitted prior work before you commit.
Written by Ruben Castillo, Owner at San Bernardino Contractors, serving Broadmoor and the surrounding San Mateo County communities.