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 Montclair
Finding a general contractor in Montclair who actually shows up, keeps you informed, and handles the whole project under one contract is harder than it should be. Milpitas Construction does exactly that. We work across all of ZIP 91763, from the tree-lined streets south of the 10 to the foothill-adjacent lots along the northern edge, and we’ve learned exactly how Montclair’s older tract homes behave once a remodel gets underway. Call (877) 752-4194 for a free estimate and a straight answer about what your project will take.
Montclair isn’t a city with empty lots and wide-open new subdivisions. It’s fully built out inside its 91763 boundaries, which means nearly every job we take on is a remodel, addition, ADU conversion, or tear-down rebuild on a 1950s to 1970s tract lot with tight shared property lines. That reality drives everything about how we bid and how we build here. Ken Stafford leads our team with a simple rule: inspect first, price what we find, and get written approval before we change anything.
Why Milpitas Construction Is Montclair’s Preferred General Contractor
Montclair homeowners keep calling us back because we treat every project like it’s on our own street. We’ve worked homes along Ramona Ave, Benson Ave, and throughout the neighborhoods around Moreno St and Kingsley St. Homeowners here tell us the same thing: other contractors quoted a price without looking behind the drywall, then the number moved the moment work started. We do the opposite. Our process is inspection-first, which means we open walls with a plan, document what we find, and write allowances into the contract so nothing blindsides you.
Ken Stafford has built Milpitas Construction around single-contract accountability. From the roofline to the kitchen counter, one contractor, one conversation. When we remodel a 1962 stucco home in Montclair, the same team coordinating your James Hardie siding and CertainTeed roof is also managing your Kohler fixtures and Cambria countertops. That coordination gap where projects stall? We eliminate it, because we own every phase.
Our response time to Montclair is quick because we’re already working here regularly. When you call, you get a straight answer about scheduling, not a call-center script. We show up ready to look at the actual conditions on your lot, including party-wall setbacks and garage-conversion parking rules that don’t exist in the open tracts further east.
Styles & brands we work with
General Contractor Services in Montclair
General Contractor Services in Montclair cover everything from kitchen and bath gut remodels to whole-home renovations, room additions, and prefab ADU construction on tight 91763 lots. A typical kitchen remodel in Montclair runs $14,000 to $45,000 depending on whether we’re refacing cabinets or tearing down walls, and a bathroom remodel lands between $9,000 and $28,000. The job involves opening walls, correcting what’s behind them, then rebuilding with materials we spec by name, so you know exactly what’s going into your home.
Kitchen and Bath Remodels on 1950s to 1970s Tract Homes
Most Montclair kitchens we open have original plumbing drains and wiring that haven’t been touched since the Eisenhower or Nixon administration. A gut remodel nearly always triggers electrical panel upgrades and drain re-routing once the walls are open. We price those as written allowances up front, not surprise change orders later.
Room Additions and Garage Conversions on Tight Lots
Montclair lots are small and shared property lines are the norm, so additions and garage conversions come with real setback and parking-count requirements. We pull permits, handle neighbor-notice paperwork, and design around the actual constraints of your lot. A garage conversion in Montclair runs $30,000 to $80,000, and an ADU construction project typically falls between $90,000 and $220,000.
What happens when you call
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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 Montclair
As a full-scope construction company working in Montclair, we handle exterior-to-interior projects that most contractors piece out to three different crews who never talk to each other. Home additions in Montclair run $45,000 to $130,000, and the scope almost always includes roofing tie-ins, siding match, foundation work, and interior finish. Because we manage every trade under one contract, you’re not chasing a roofer for a leak while a window crew blames the framer.
Roofing, Windows, Siding, and Exterior Upgrades
Montclair’s summer heat and periodic Santa Ana wind events put real stress on low-slope and shingle roofs. We install GAF and CertainTeed roofing systems, Therma-Tru doors, and James Hardie siding, all chosen for how they hold up in the valley’s hot, dry summers and the occasional heavy wind. Exterior work here isn’t cosmetic. It’s the difference between a house that sheds heat and one that fights your AC every August.
Hardscaping, Pavers, and Concrete on Infill Lots
Tight lot lines make paver patios, driveways, and walkways a bigger part of the Montclair project mix than you’d expect. We work with Belgard and Techo-Bloc pavers, and we design drainage so water moves away from raised foundations that were built before modern grading codes. A paver driveway installation in Montclair runs $7,000 to $18,000, and concrete driveways come in between $4,500 and $12,000.
Trusted Brands We Service in Montclair
We spec materials by name, so you know exactly what’s going into your Montclair home. Cabinet lines include KraftMaid and Wellborn. Countertops come from Cambria, Silestone, and Caesarstone. Fixtures are Kohler where water matters most. For homeowners who want one accountable partner instead of a revolving door of specialists, having active access to 50-plus brand-name product lines across every major trade changes how smoothly a remodel runs. Premium brands, proper installation, one accountable team.
See the difference
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After
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After
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AfterCommon General Contractor Problems We See in Montclair Homes
- Cloth-wrapped wiring and original 60-amp electrical panels. Nearly every 1950s to 1970s Montclair home that hasn’t been renovated still carries wiring that’s beyond its service life. Once we open walls for a kitchen or bath remodel, the panel upgrade becomes code-required work, and we write it into the contract before demo starts.
- Load-bearing walls that were notched or removed by earlier remodels. We regularly find headers that were hacked apart decades ago and covered back up with drywall. That’s why we inspect framing before we quote, not after we demo.
- Failed waterproofing in showers and exterior stucco transitions. Montclair’s dry climate can hide slow leaks for years until wood rot shows up. We check for failed waterproofing at the start of every remodel, not at the punch-list stage.
- Tight-lot code triggers on additions and garage conversions. Party-wall setbacks, parking-count requirements, and neighbor-notice rules on two-story additions are routine in Montclair. We pull permits and clear those hurdles before the first framing nail goes in.
Pricing for General Contractor in Montclair, CA
Here’s what we see in Montclair’s current market, based on the actual scope of the job rather than a guess from across the county:
| Project | Typical Montclair Price Range |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
What moves the number on a Montclair remodel more than anything is what’s behind the walls: the condition of the wiring, the integrity of the framing, and whether the waterproofing has failed. That’s why we don’t quote blind. We inspect, we write allowances for the likely code upgrades, and anything we find gets priced and approved in writing before we touch it. Call (877) 752-4194 to schedule a free estimate. You’ll get line-item pricing, not a round number with a shrug.
We Also Serve Cities Near Montclair
Our team covers Montclair and the surrounding Inland Empire foothill cities, including Claremont, Ontario, Upland, and La Verne. If you’re searching for a General Contractor who understands the older housing stock and tight-lot realities of the eastern San Gabriel Valley, you’ll find the same inspection-first process and written-allowance pricing whether your home is off Holt Blvd in Montclair or up against the foothills in Claremont.
Serving Montclair, CA — Our Local Coverage Area
We’re based in the Montclair 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 Montclair
The quote changes because what’s behind the drywall in a 1950s to 1970s Montclair tract home is often outdated wiring, undersized framing, or failed waterproofing that no one could see before demo. We handle this by inspecting first, writing allowances into the contract for the likely code-triggered work, and pricing any actual discovery in a written change order you approve before we proceed. Surprises stop being surprises when they’re already budgeted. Call (877) 752-4194 for an exact quote, and we’ll walk you through the allowance structure.
Yes, you need a permit to convert a garage into an ADU in Montclair, and the city enforces parking-count requirements and setback rules because nearly every lot in 91763 is small and shares a property line. We pull the permits, handle the neighbor-notice paperwork if your conversion involves a two-story addition, and coordinate the electrical, plumbing, and structural inspections through final sign-off. A garage conversion in Montclair typically runs $30,000 to $80,000. Call (877) 752-4194 to talk through your specific lot.
We open the ceiling and inspect the framing before we quote the removal, because on a raised-foundation 1960s stucco home off Holt Blvd, we once found a load-bearing header that had been notched by an old remodel, and it wasn’t visible until demo. We reframed the header, priced the work line by line, and got written approval before touching it. On your project, we’ll size the new beam, pull the permit, install temporary support walls, and carry the rough-in through inspection sign-off before drywall closes. Call (877) 752-4194 for a structural assessment.
A draw schedule is a written plan that ties specific payments to completed, inspected milestones: foundation, framing, rough-in electrical and plumbing, drywall, and final sign-off. On a Montclair addition, where permit inspections and tight-lot conditions drive the timeline, a clear draw schedule protects you from paying ahead of work that hasn’t been signed off. We set the schedule in the contract before demo starts, and you approve each draw in writing. Call (877) 752-4194 to see a sample draw schedule for a project like yours.
We walk the project with you room by room, write every remaining item on a dated punch list, and we don’t collect the final draw until every item is corrected and the city inspection is signed off. On a Montclair remodel, final sign-off means permits are closed, not just that the tile is clean. If anything on the list isn’t right, we fix it before the job closes. Call (877) 752-4194 to schedule your free estimate and get the exact process in writing.
Written by Ken Stafford, Owner at Milpitas Construction, serving Montclair and the eastern San Gabriel Valley.