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
If you’re planning a remodel, addition, or garage conversion in Montclair, you need a contractor who understands what these older tract homes hide behind the drywall. Most general contractor work in Montclair runs $30,000 to $130,000 depending on scope, with garage conversions starting around $30,000 and full home additions reaching $130,000. Our team at Moreno Valley Builders knows the post-war framing, the narrow lot lines, and the permit triggers that shape every Montclair project. We’re a full-scope General Contractor managing design, permitting, trades, and materials under one roof. Call (877) 752-3154 to schedule your free estimate.
Why Moreno Valley Builders Is Montclair’s Preferred General Contractor Company
Montclair homeowners don’t get the luxury of open, empty parcels. Every job here is infill work on an existing lot, and that changes how a contractor has to think. We’ve worked through garage-to-ADU conversions off alley-loaded lots, room additions that push right up against side setbacks, and second-story adds on framing never engineered for the extra load. That local experience means we flag lot-coverage issues before the plans are drawn, not after the city rejects them.
Led by Noel Trevino, our General Contractor in Montclair team coordinates every trade, every material order, and every inspection. Homeowners aren’t left juggling electricians, plumbers, and roofers on their own. We manage the trades so you don’t have to. From permits to punch list, one contractor. Every phase.
Styles & brands we work with







Licensed General Contractor in Montclair
A Licensed General Contractor in Montclair handles the full project lifecycle: structural planning, permit submittal, trade coordination, material procurement, and final inspection sign-off. You need one the moment your project touches load-bearing walls, rooflines, electrical, plumbing, or any scope that triggers a building permit. In Montclair, that’s nearly every meaningful remodel, because opening a 1950s or 1960s wall routinely surfaces outdated wiring, undersized framing, and failed waterproofing that a city inspector will require fixed before the project can move forward. A licensed GC absorbs that coordination so you’re not chasing subs across San Bernardino County.
Permits, Trades, and Inspection Work
We pull permits for every job in Montclair where the city requires them, including garage conversions, ADUs, room additions, and structural remodels. The permit isn’t paperwork to us. It’s the mechanism that surfaces code corrections early, so we write those corrections into the scope before the work begins. Our single-point-of-accountability model means one company tracks every trade, every inspection date, and every correction item from rough framing through final sign-off.
Material-Brand Depth Across Every Trade
Because we’re a true general contractor, not a single-trade specialist, we specify materials from 50+ established manufacturers across cabinetry, countertops, hardscaping, roofing, windows, and prefab structures. That means a Montclair kitchen remodel isn’t limited to whatever a sub happens to stock. Your project. Your material choices.
Residential General Contractor in Montclair
A Residential General Contractor in Montclair works on the city’s dominant housing type: 1950s through 1970s single-story tract homes on compact lots. These houses were built fast, built simple, and built for a different code era. When a homeowner wants a kitchen opened up, a second story added, or a garage turned into an ADU, the original structure almost never meets today’s load-bearing, drainage, or energy requirements. That’s where a residential GC with local infill experience matters. Typical scopes in Montclair run from a $9,000 small kitchen remodel to a $220,000 ADU construction, with room additions landing between $45,000 and $130,000.
Infill Remodels on Compact Lots
Montclair is essentially built out. Nearly every residential job we do here is infill work: reworking an existing footprint rather than building on open ground. The city’s narrow post-war lots and alley-loaded garages mean we’re routinely dealing with tight equipment access, shared property-line setbacks, and additions that push lot-coverage limits. That’s a different job from building on an open suburban parcel, and we plan for it from the first site visit.
Case Study: What Opening a Montclair Wall Actually Reveals
On a garage-to-ADU conversion off a narrow alley-loaded lot near the Montclair Plaza area, our crew opened the walls and found cloth-wrapped wiring, a rotted subfloor at the slab edge, and framing that had been notched for an old dryer vent without any load-bearing reinforcement. We pulled permits, wrote the rough-in and framing repairs into the scope of work as allowances up front, and priced each surprise in writing before we touched it. The inspection sign-off came through on the first pass.
Trusted Brands We Service in Montclair
We specify brands because of what they deliver on a Montclair project, not because a sales rep gave us a good deal. For windows and doors on hot inland lots, we turn to CGI for impact-rated performance, ES Windows for clean sightlines with serious thermal breaks, and ECO Window Systems when code compliance and energy performance both matter on an older home retrofit. For specialty and impact applications, CWS covers the high-wind and security side of the equation. We stock common components locally so Montclair customers aren’t waiting on a cross-country parts shipment when a window or door needs replacing mid-remodel.
See the difference
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AfterCommon General Contractor Problems We See in Montclair Homes
- Lot coverage blowouts on additions. Montclair’s compact post-war lots were platted without room to spare. A room addition or garage conversion drawn off the original footprint can exceed the city’s lot-coverage limit once the plan is actually measured, which kills the permit on first review. We flag this at the estimate stage, not after the drawing set is finished.
- Hidden electrical and framing surprises behind 1950s-70s drywall. These homes weren’t built for modern loads. Opening a wall routinely surfaces cloth-wrapped wiring, undersized or notched framing, and waterproofing that failed years ago. An inspector will require every one of those corrections before sign-off, so we write them into the scope as allowances before demolition starts.
- Drainage and grading problems on flat, shallow lots. Montclair’s older lots were graded for minimal surface drainage. Add a patio cover or an addition and you’ve changed where water goes, which can undermine slabs and invite dry-rot into framing. We address grading and drainage in the same scope as the structural work, not as an afterthought.
- Draw schedules with no written change-order process. On a tight-access infill lot, mid-job discoveries are normal, not rare. A draw schedule with no written allowances or change-order process stalls the crew and the budget with nothing documented. We put every change in writing with a line-item price before work proceeds.
Pricing for General Contractor in Montclair, CA
Montclair’s market is shaped by the age of the housing stock and the realities of infill construction. Here’s what our projects in Montclair typically run, based on the work we’ve bid across the city:
| Project Type | Typical Montclair Range |
|---|---|
| Garage Conversion | $30,000 – $80,000 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Roof Replacement | $8,000 – $20,000 |
| Window Replacement | $4,500 – $15,000 |
The biggest cost driver in Montclair isn’t the finish level. It’s what the walls reveal once they’re open. We build written allowances into every contract so those discoveries don’t blindside your budget. Call (877) 752-3154 for a free estimate with a line-item breakdown.
We Also Serve Cities Near Montclair
Our service area covers Montclair and the surrounding communities, including Claremont, Ontario, Upland, and La Verne. If you’re planning a project anywhere in this part of the Inland Empire, we can bring the same infill expertise and material-brand depth to your job. Call (877) 752-3154 to confirm your project is in our service area.
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
Because the city’s 1950s through 1970s tract homes were not built to today’s code, and opening walls routinely reveals cloth-wrapped wiring, undersized framing, and failed waterproofing that an inspector will require fixed. We handle this by writing allowances into the contract before demolition starts, so when a surprise surfaces, it’s already budgeted and priced in writing before we touch it. Call (877) 752-3154 for an exact quote, estimates are free.
Yes, you need a permit. Montclair, like the rest of San Bernardino County, requires building permits for garage conversions, ADUs, and any structural change that alters the building envelope or adds living space. We pull permits on every qualifying project and manage the inspection process through final sign-off. Call (877) 752-3154 to discuss your specific scope.
Montclair’s lots were platted tight, with alley-loaded garages and shared side setbacks. An addition here often pushes lot-coverage limits, and equipment access is tighter than on an open subdivision parcel. That means the structural engineering and site logistics have to be planned before the drawings are final, not improvised mid-project. Call (877) 752-3154 for a free estimate that accounts for your specific lot.
We write allowances into the contract for the known unknowns: rough framing, outdated wiring, failed waterproofing, undersized support members. Every change order is priced in writing and approved by you before our crew touches that part of the work. No verbal handshakes, no “we’ll figure it out later.” Call (877) 752-3154 to see how our estimates are structured.
Inland Empire heat bakes stucco and wood framing, accelerates material expansion and contraction, and stresses roof penetrations and window seals. When we scope a remodel or addition in Montclair, we account for thermal movement in the flashing details, insulation choices, and window specifications. That’s why we prefer impact-rated and thermally broken window systems from brands like CGI and ES Windows on these lots. Call (877) 752-3154 for a scope review.
Written by Noel Trevino, Owner at Moreno Valley Builders, serving Montclair and the Inland Empire.
Ready to start? Call (877) 752-3154 for your free estimate, or reach out to schedule a walkthrough of your Montclair property.