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 Millbrae
Hiring a General Contractor in Millbrae means finding a team that understands the city’s postwar housing stock, its tight side yards, and the planning review process that shapes every addition, ADU, and rebuild here. Copperleaf Contractors serves Millbrae homeowners with full-scope remodeling work: kitchens, bathrooms, additions, garage conversions, and exterior systems, all managed under one project team. We’re based just up the coast in Pacifica, which puts us about 20 minutes from most Millbrae job sites. Call Noel Cavanaugh at (833) 589-8173 to talk through your project and schedule a free written estimate.
Why Copperleaf Contractors Is Millbrae’s Preferred General Contractor Company
Millbrae homeowners call us because we plan for the things other contractors discover mid-project. A remodel on a 1940s Millbrae tract home is not the same job as a remodel in a newer development. The original wiring, the pier-and-post foundation, the narrow side yard that a concrete truck cannot enter: these are known quantities to us because we’ve worked them repeatedly across the 94030 zip code. We build the site logistics into the bid so the price on paper matches the work on the ground.
Noel Cavanaugh leads every Copperleaf project with the same expectation: the homeowner should know what they’re getting, what it costs, and when it arrives before we order a single long-lead item. That discipline matters in Millbrae, where custom cabinetry, architectural glass, and specialty finishes often sit in production for 8 to 14 weeks. We fix scope and allowances in writing before ordering anything.
Homeowners across Millbrae, from the flats east of El Camino Real up to the hillside lots near Taylor Middle School, have worked with us on second-story additions, ADU conversions, and full kitchen remodels without a change order at the end. That’s the standard we hold ourselves to.
Styles & brands we work with







General Contractor Services in Millbrae
General Contractor Services in Millbrae cover the full scope of a residential remodel: structural work, rough and finish carpentry, cabinetry installation, countertop fabrication and setting, tile, millwork, and coordination of plumbing and electrical trades under one accountable team. A Millbrae homeowner typically calls us when the job spans multiple trades and a single subcontractor’s schedule would hold the whole project hostage.
We’re the single point of contact from design selection through final inspection. You choose materials from 50-plus vetted brands: KraftMaid and Wellborn for cabinetry, Cambria, Silestone, and Caesarstone for countertops, Kohler, Moen, and Toto for plumbing fixtures. Choose the material, not the markup.
Full-Scope Interior Remodels
A kitchen remodel in Millbrae runs $14,000 to $45,000 depending on cabinet grade, countertop material, and whether the footprint changes. Bathroom remodels run $9,000 to $28,000. We carry those spans through fixed written allowances so the tile you pick at the showroom is the tile in the contract.

Additions and Structural Work
Home additions in Millbrae run $45,000 to $130,000, and that range is driven largely by site access. A rear addition on a lot with an 8-foot side yard needs a pump truck, hand-carry staging, and sequenced material deliveries. We plan that before bidding, not after excavation starts.

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 Millbrae
As a licensed Construction Company serving Millbrae, Copperleaf Contractors handles the structural and envelope work that keeps a remodel standing: foundations, framing, roofing, James Hardie siding, and window and door replacement. Homeowners looking for a construction company in Millbrae are usually adding square footage, converting a garage, or rebuilding an understructured postwar home on the Bay side of the city.
Roof replacement in Millbrae runs $8,000 to $20,000. Window replacement runs $4,500 to $15,000, and if you’re upgrading to impact-rated windows from PGT, CGI, or ECO Window Systems, the installed range is $8,000 to $25,000. Those are the windows that matter near SFO flight paths and the persistent marine air that keeps north and west elevations damp most of the year.
ADU and Garage Conversions
ADU construction in Millbrae runs $90,000 to $220,000, and garage conversions run $30,000 to $80,000. Millbrae’s undersized postwar garages are prime ADU candidates, but the work requires care: many original slabs lack proper moisture barriers, and the marine air that drifts off the Bay accelerates rot and corrosion on poorly detailed foundations and framing.
Exterior Envelope Work
From the foundation to the roofline, we manage the building envelope as one system. Siding, roofing, windows, and drainage detailing all get sequenced by the same project lead. That coordination is what prevents water intrusion on Millbrae’s fog-dampened elevations.
Trusted Brands We Service in Millbrae
Millbrae homeowners choose from a portfolio of 50-plus manufacturers, including ES Windows, ECO Window Systems, and Therma-Tru for doors and architectural glass packages. We don’t push a house brand. You’ll see multiple competing lines in every category: three countertop stone brands, six roofing manufacturers, four plumbing fixture lines. We stock and source parts for Millbrae customers through our supplier network, which means faster turnaround on replacements and warranty claims than a contractor working from a single-margin catalog. Built to the brand standard, priced to what you actually chose.
See the difference
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AfterCommon General Contractor Problems We See in Millbrae Homes
- Narrow side-yard access stops equipment cold. On postwar lots with 8 to 10 foot setbacks, concrete trucks and excavation equipment often cannot reach the rear yard. Experienced Millbrae contractors plan pump-truck placement and hand-carry staging before bidding; the ones who don’t discover the cost at excavation. On a cramped lot off Larkspur Drive, we managed a second-story addition with custom cabinetry and architectural glass; our crew hand-carried a Cambria-topped island through a 9-foot side yard after a pump truck placed the foundation. The long-lead glass and cabinetry drove the schedule, so we locked the scope and allowances in writing before ordering, and the punch list was closed without a single change order.
- Long-lead custom finishes get ordered too late. Custom millwork, architectural glass, and specialty tiles can sit in production for 8 to 14 weeks. When a contractor waits until framing is done to order them, the schedule quietly slips by months. In Millbrae, we order long-lead items at permit submission, not after.
- Pier-and-post foundations complicate remodels. Many original 1940s and 1950s Millbrae homes still sit on pier-and-post foundations with no seismic retrofit. Opening a wall or carrying new structural loads often reveals the need for foundation work that the original bid never covered. We scope this from the start and pull permits accordingly.
- Damp exterior elevations rot poorly detailed work. The marine air off the bay keeps north and west exterior surfaces damp much of the year. Decks, stucco, and trim on those elevations fail faster than the sunny side. We spec rot-resistant materials and drainage details that account for Millbrae’s specific microclimate, not a generic California spec.
Pricing for General Contractor in Millbrae, CA
Millbrae pricing reflects the city’s real constraints: tight lots, planning review overhead, and the long-lead materials that high-end work demands. Here’s what homeowners in Millbrae should expect:
| Project | Millbrae Price Range |
|---|---|
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
| Cabinet Installation | $4,000 – $13,000 |
| Countertop Installation | $2,000 – $6,500 |
What moves the number is what you choose and how the site works, not vague markup. Long-lead glass and millwork cost what they cost, but the scope is fixed in writing before we order. Estimates are free. Call (833) 589-8173 and we’ll walk your specific site, measure the access, and give you a line-item number you can hold us to.
We Also Serve Cities Near Millbrae
Our team works throughout the northern Peninsula. If you’re in San Bruno, Burlingame, Hillsborough, or South San Francisco, the same full-scope Millbrae process applies: written allowances, long-lead ordering at permit submission, and one accountable project lead from demolition to punch list.
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
We plan for it before we bid. On Millbrae lots with 8 to 10 foot side setbacks, we typically place a pump truck on the street and run concrete through a boom into the rear yard, then hand-carry framing, drywall, and finish materials through the side passage. The site logistics plan is written into our bid, so access constraints are priced up front, not discovered mid-project. Call (833) 589-8173 to have us walk your lot and confirm access.
Custom cabinetry, architectural glass, and specialty tile typically run 8 to 14 weeks from order to delivery. In Millbrae, we order those items at permit submission, which means your selections need to be finalized early. That’s exactly why we fix allowances in writing before anything goes to the manufacturer. Get your selections locked early and the long-lead calendar works; a free estimate call to (833) 589-8173 is the starting point.
Millbrae projects thread local planning review alongside San Mateo County and BAAQMD/SFO-related environmental review, which adds weeks to the preconstruction calendar. Our team has worked through that process repeatedly on Millbrae additions and ADUs. We build the review timeline into the schedule, not as a surprise discovered after permit submission.
Yes. Millbrae’s postwar garages were not built as living space, and the coastal damp air that drifts off the Bay means the slab, framing, and exterior envelope need real evaluation before conversion. We spec moisture barriers, drainage detailing, and rot-resistant materials suited to the city’s specific microclimate. Garage conversions in Millbrae run $30,000 to $80,000 depending on slab condition and envelope scope.
We fix scope and allowances in writing before ordering any long-lead item. You select your materials, the allowance is written into the contract at the number you approved, and we order against that. If a designer finish lands above the allowance, you know the difference before it’s ordered, not after it’s installed. Call (833) 589-8173 for a free written estimate and we’ll walk the full process with you.
Written by Noel Cavanaugh, Owner at Copperleaf Contractors, serving Millbrae and the northern Peninsula.