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
Salt Air Is Hard on Millbrae Homes. We Build for It.
A General Contractor in Millbrae has to understand something most peninsula contractors miss: this city sits close enough to the bay that marine moisture changes which materials make sense. We regularly see untreated fence posts rotting at the base within five years, steel fasteners bleeding rust through stucco, and aluminum fence finishes chalking to powder under constant salt exposure. General contracting in Millbrae costs $9,000 to $130,000 for most remodel and addition scopes, with coastal-spec materials adding roughly 10 – 15% over inland builds. Call (877) 752-3868 and we’ll walk your property and tell you exactly where the salt air is already winning.

As the team at Ashford Contractors in Millbrae, we know the difference between a spec sheet and a salt-air survival test. Glen Mossier leads every project with one question: what’s going to fail first on this lot, and how do we spec around it?
What Actually Fails in Millbrae’s Marine Air
On a recent second-story addition in the Lomita Hills area, we found the original 1950s fence posts completely rotted at the base, with rusted nails bleeding through the stucco – a direct result of salt air off the bay. We specified hot-dip galvanized connectors and stainless steel fasteners throughout the new deck and railing, and sealed all paver joints with a marine-grade polyurethane to prevent wind-driven rain intrusion.
That’s the Millbrae difference in one job. A fence post in San Mateo lasts decades. In Millbrae, the same post rots at ground level in five to seven years. The failure isn’t the wood species – it’s the treatment, the fastener, and the barrier detail. We source pressure-treated and barrier-wrapped posts from manufacturers like Jerith and ActiveYards, whose marine-grade powder coatings hold up to fog and salt spray far better than big-box alternatives.
Styles & brands we work with







The Price Gap: Coastal-Spec vs. Inland-Spec
Why does a fence or deck quote in Millbrae run higher than the same job ten minutes inland? Because the correct spec is different. Electro-galvanized nails cost pennies less than hot-dip galvanized – but they bleed rust through stucco in three seasons. Standard aluminum fencing without marine-grade powder coating chalks and pits within a few years. A standard wood post without barrier wrap absorbs fog moisture every night and rots from the inside out.
Here’s what that looks like in real numbers for Millbrae:
| Project | Coastal-Spec Range (Millbrae) | What the Coastal Spec Includes |
|---|---|---|
| Vinyl Fence Installation | $3,500 – $9,000 | Marine-grade vinyl, stainless hardware, sealed post bases |
| Home Addition | $45,000 – $130,000 | Hot-dip galvanized connectors, moisture barrier detailing, wind-rated exterior envelope |
| ADU Construction | $90,000 – $220,000 | Setback compliance, marine-grade exterior finishes, proper drainage |
| Roof Replacement | $8,000 – $20,000 | Wind-driven rain underlayment, stainless flashing |
The cheap spec in Millbrae costs more within a decade. We’ve replaced enough early-failed fences and rusted railing systems to know the math.
Why Ashford Contractors for Millbrae Work
Millbrae’s housing stock is mostly 1940s – 1960s ranch and stucco homes on narrow lots. That means three things for every project we take on. First, the original building envelope usually needs structural attention before we get to the pretty stuff – old single-pane windows, shallow foundations, and wiring that predates the microwave. Second, lot coverage and setbacks are the binding constraint on what can be built. Third, the rainy season – roughly November through April – sets the schedule, not the calendar.
Glen has spent enough time on Millbrae lots to know that a side-yard setback of a few feet is what most often kills a planned addition or ADU. Before you spend money on drawings, we check what the city will actually let you build. That single step saves Millbrae homeowners thousands in redesign costs.
We’re the single point of accountability for whole-home work. Kitchen and bath, roof and windows, fence and hardscape – one contract, one project manager, one point of contact. When we work with Bufftech or Ameristar fencing, it’s not because a supplier pushed a catalog on us. It’s because we’ve seen which products survive five foggy winters without chalking or rusting.
General Contractor Services in Millbrae
General Contractor Services in Millbrae span the full range of home renovation and remodeling scopes, from kitchen and bathroom remodels to whole-home renovations, room additions, and accessory dwelling units. Homeowners in Millbrae hire a general contractor when a project touches multiple trades – framing, electrical, plumbing, finishes – and they want one accountable party managing the sequence. On Millbrae’s narrow postwar lots, additions and ADUs almost always involve structural upgrades, setback compliance, and marine-grade exterior detailing.
Kitchen and Bath Remodeling
Kitchen remodels in Millbrae run $14,000 – $45,000, with small kitchens landing at $9,000 – $20,000. Bathroom remodels range from $9,000 – $28,000, and smaller baths from $5,000 – $12,000. We source cabinetry from KraftMaid and Wellborn, countertops from Cambria and Silestone, and fixtures from Kohler, Grohe, Toto, and Moen.

Second-Story Additions and ADUs
Because Millbrae is nearly built-out, most expansions go up, not out. Home additions run $45,000 – $130,000, and ADU construction runs $90,000 – $220,000. Before we quote, we verify side-yard setbacks, lot-coverage limits, and wind exposure at your specific address – details that determine what’s actually buildable.

What happens when you call
- 1
A real person answersNo phone trees — you reach a local pro.
- 2
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 Millbrae
As a full-scope Construction Company working throughout Millbrae, Ashford Contractors takes on projects that span both interior and exterior systems. Many Millbrae homeowners come to us after realizing their project requires multiple specialized trades – a roofer, a window installer, a fence contractor, a deck builder – and no one wants to coordinate four separate crews. We run the entire project under one contract, with one project manager, from demolition through final inspection.
Exterior Envelope Work: Roof, Windows, Siding
Roof replacement in Millbrae ranges from $8,000 – $20,000, and window replacement from $4,500 – $15,000. For exterior envelope work, Millbrae’s wind-driven rain and marine moisture mean we specify roofing underlayment and flashing details that aren’t standard elsewhere. We’re certified with GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral – six manufacturer relationships means you choose the material and price point, not us.
Fencing and Hardscape
Vinyl fence installation runs $3,500 – $9,000, and aluminum fence installation $4,000 – $10,000. Paver driveways run $7,000 – $18,000, and paver patios $3,500 – $11,000. We install hardscape with Belgard, Unilock, Tremron, Cambridge Pavers, and Techo-Bloc products – all in-house, not subbed out.
Trusted Brands We Service in Millbrae
We’re authorized to work with 50+ name-brand manufacturers across every major home system. In Millbrae specifically, we recommend Ameristar, Jerith, Bufftech, and ActiveYards for fencing because these manufacturers offer marine-grade finishes and barrier-protected post systems that hold up to fog and salt air. We keep common replacement parts and fasteners on hand for Millbrae jobs, which shortens turnaround when a section of railing or a gate needs repair. From James Hardie siding to Therma-Tru doors, we source materials that match the job – not whatever’s left in a warehouse.
See the difference
Before
After
Before
After
Before
AfterCommon General Contractor Problems We See in Millbrae Homes
- Rotted fence posts at ground level. Millbrae’s fog settles at the base of posts every night, and untreated wood absorbs that moisture for years until the post snaps or leans. We specify pressure-treated posts with barrier wraps and sealed post bases.
- Rusted fasteners bleeding through stucco. Electro-galvanized nails and screws corrode quickly in salt air, leaving rust streaks down exterior walls. We use hot-dip galvanized or stainless fasteners on every exterior connection.
- Chalked and degraded vinyl or aluminum fencing. Standard powder coats break down under marine UV and salt exposure. We specify marine-grade finishes from manufacturers who engineer for coastal conditions.
- Shallow foundations on original 1940s – 1960s ranch homes. Many Millbrae homes sit on footings that weren’t designed for second-story additions. We assess the foundation before quoting, and we strengthen where the load path requires it.
Pricing for General Contractor in Millbrae, CA
General contracting in Millbrae runs from roughly $9,000 for a small remodel to more than $220,000 for a full ADU. The range depends on scope, materials, and how much of the original structure needs upgrading – but you should expect coastal-spec exterior materials to add 10 – 15% over what you’d pay for the same job inland. That’s not markup. It’s the cost of stainless fasteners, barrier-protected posts, and marine-grade finishes that don’t fail in five years. We give free, written line-item estimates so you can see exactly where the money goes. Call (877) 752-3868 to schedule one.
We Also Serve Cities Near Millbrae
We serve Millbrae and the surrounding peninsula communities, including San Bruno, Burlingame, Hillsborough, and South San Francisco. The marine-air conditions that shape Millbrae work apply across this stretch of the bay, so the materials and detailing we specify stay consistent. If your project is in a neighboring city, we bring the same coastal-spec approach.
Serving Millbrae, CA — Our Local Coverage Area
We’re based in the Millbrae 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 Millbrae
Millbrae sits close enough to the bay that marine moisture and salt air corrode standard fasteners and rot untreated wood within five to seven years, while the same materials last decades inland. The fix is a coastal-spec approach: hot-dip galvanized or stainless fasteners, pressure-treated and barrier-wrapped posts, and marine-grade finishes. Call (877) 752-3868 and we’ll show you what’s on your property right now that’s heading toward failure.
Expect coastal-spec materials to add roughly 10 – 15% over an inland build – so a $45,000 inland addition becomes roughly $50,000 – $52,000 in Millbrae with proper fasteners, moisture barriers, and exterior detailing. The cheaper spec usually fails within a decade and costs more to repair than the original upgrade. For an exact quote on your addition, call (877) 752-3868.
Millbrae’s wet season runs roughly November through April, when wind-driven rain and saturated ground make exterior framing, roofing, and concrete work slower and riskier. We schedule major exterior phases to fall outside the heaviest rain windows when possible, and we sequence projects so interior work can continue during wet weeks. Call (877) 752-3868 to see where your project fits on our schedule.
Yes. Millbrae requires permits for most fence replacements above a certain height and for any deck that attaches to the home or exceeds ground-level thresholds. We pull all permits and pass inspections – it’s part of the single-contract accountability we offer. Call (877) 752-3868 and we’ll check the city’s current requirements for your specific scope.
The side-yard setback – often only a few feet on Millbrae’s narrow postwar lots – is what most often limits or kills an ADU plan. Lot coverage limits and the original footprint of 1940s – 1960s ranch homes compound the constraint. We assess setback feasibility early, before you spend money on drawings. Call (877) 752-3868 to have us walk your lot.
Call Ashford Contractors for Your Millbrae Project
If you’re planning a remodel, addition, ADU, or whole-home renovation in Millbrae, get a contractor who knows what salt air does to this city’s homes. You’ll get one project manager, one contract, and a material spec tuned to the bay. Call (877) 752-3868 to schedule your free estimate – we’ll walk the property, check the setbacks, and show you exactly what needs coastal-spec attention.
Written by Glen Mossier, Owner at Ashford Contractors, serving Millbrae and the surrounding peninsula.