Free 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 asking what a general contractor in Montclair actually costs, here’s the straight number: most residential projects we quote run between $9,000 for a small bathroom remodel and $130,000 for a full home addition, with kitchens landing at $14,000 – $45,000. Those are written numbers, not verbal ranges. Penhallow Remodeling puts the price and the 365-Day Done Right Promise on paper before a single wall comes down. Call (936) 259-2607 and we’ll schedule your free estimate.
We know Montclair’s housing stock: 1950s and 1960s stucco-over-wood-frame tract homes on concrete slabs that predate modern seismic codes. We know which ones have original aluminum windows that won’t pass a Title 24 energy review. And we know that Montclair runs its own building department under San Bernardino County codes, which catches a lot of LA County contractors off guard. Our General Contractor crews work here every week, and our Inland Empire office dispatches to Montclair neighborhoods without the east-west confusion that slows other companies down.
Why Penhallow Remodeling Is Montclair’s Preferred General Contractor Company
Trevor Nash runs our crews the way he’d want a contractor to run a job on his own home: a written number before demo, a defined arrival window, and a guarantee that actually means something. If our work fails inside 365 days, we come back and fix it at no charge. That’s not marketing language. It’s in writing on every single project we quote.
Our Montclair customers tend to come to us after being burned once, often by a verbal estimate that ballooned, or a crew that stopped answering texts after the counters went in. We hear it on almost every first call. The fix is simple: you get the price in writing before work starts, and the number on day one is the number on the final invoice. No change orders unless you ask for something different. No surprise line items.
Every technician who walks into your Montclair home is background-checked and in uniform. We name the trade materials we’ll use before we cut anything: Cambria or Silestone counters, Kohler or Moen fixtures, James Hardie siding where exterior work is involved. If a material carries its own warranty, we tell you that too, and we document how it layers with ours.
Residential General Contractor in Montclair
Residential general contractor work in Montclair means something specific: a contractor who understands that this city sits on an alluvial fan beneath the San Gabriel Mountains, with expansive clay soils that swell and shrink against slab foundations. A 1963 home near Monte Vista Elementary has different structural realities than a 2005 build up near the 60 freeway. We plan for that from the first site visit, not after the slab cracks open.
When a Montclair homeowner calls us for Kitchen Remodeling in Montclair, a bathroom rebuild, or whole-home renovation, we start with a structural and permit assessment. What does the building department require? Is the foundation moving? Will the window replacement trigger a Title 24 energy review? Those answers shape the quote, and they’re documented before you sign anything. A typical kitchen remodel here runs $14,000 – $45,000 depending on cabinet line, countertop material, and whether we’re moving walls or just refreshing finishes.
Whole-Home and Addition Work
For Montclair homeowners planning a home addition, prices start at $45,000 and can reach $130,000 depending on square footage, foundation work, and the seismic detailing San Bernardino County inspectors will want to see. We pull the permit through Montclair’s own building department, document the engineering, and schedule inspections so the job doesn’t stall waiting on an unfamiliar code official.
Bathroom and Kitchen Remodels
Small bathroom remodels in Montclair run $5,000 – $12,000, with full bathroom projects at $9,000 – $28,000. Kitchen work splits the difference: $9,000 – $20,000 for a small kitchen refresh, $14,000 – $45,000 for a full remodel. The range depends on whether we’re keeping your existing footprint or pulling a wall. We’ll tell you which pieces drive the price up, and which ones don’t.
Hire a General Contractor in Montclair
Hire a general contractor in Montclair who pulls permits through the right department. That sounds obvious, but it’s the single biggest failure we see from crews that normally work the Pomona side of Garey Avenue. Montclair has its own building department and its own inspectors. If your contractor assumes LA County rules apply, your project stalls, your inspection fails, and your permit gets flagged.
We handle the permit package, the inspections, and the documentation. When you hire Penhallow, you get a written scope of work, a written price, and a written guarantee. If a repair fails inside the guarantee window, the second visit is free, no service call and no re-inspection fee. The Kingswell Way has worked this way since 2004: say the price before the work, show up in the window we gave, leave the place cleaner than we found it.
Permit-Ready Contracting
For additions, ADUs, and anything that changes rooflines or structural walls, Montclair inspectors will check energy compliance, seismic detailing, and drainage. We prepare the drawings, coordinate the engineering, and pull the permit before we mobilize. You don’t have to guess which box needs checking.
Renovation Without the Runaround
For interior remodels, we stage materials, protect flooring, and contain dust. Our crews are uniformed and background-checked. Your project manager is the same person who handed you the written estimate, so the person who priced the job is the person accountable for the work.
Trusted Brands We Service in Montclair
We install and service materials from brands that carry their own warranties alongside ours: KraftMaid and Wellborn cabinetry, Cambria, Silestone, and Caesarstone countertops, Kohler, Moen, and Delta fixtures, James Hardie siding, and Therma-Tru doors. If a Montclair homeowner is considering a prefabricated or panelized build from Dvele or Abodu, we’re comfortable working with those systems too, and we’ll coordinate the foundation and site work around the factory components. Local parts availability matters when a cabinet door or faucet cartridge fails mid-project, and our suppliers stock for this market.
Common General Contractor Problems We See in Montclair Homes
- Slab cracks from expansive alluvial clay. Montclair sits on soils that swell with winter rain and shrink through 100°F summer heat. Cracks that look cosmetic often trace to footing movement, and the fix starts with understanding the soil, not just patching the surface.
- Permits pulled through the wrong county. Contractors who assume LA County rules apply because Pomona is across the street get flagged by Montclair’s own inspectors. We pull through Montclair’s building department from the start.
- Title 24 energy compliance flagged late. Montclair inspectors actively check energy-code documentation on windows and additions. Skipping that step means a failed inspection and a torn-open wall.
- Santa Ana wind damage left undocumented. Roofing and exterior membrane degradation hits harder here than on the coast. If the work isn’t documented and rated correctly, an insurance claim gets complicated fast.
Pricing for General Contractor in Montclair, CA
Here are the real numbers for Montclair’s market. Home additions run $45,000 – $130,000. Impact window installation runs $8,000 – $25,000 depending on window count, frame material, and the wind-load rating required for your specific Montclair block. Standard window replacement runs $4,500 – $15,000. Your exact quote depends on square footage, access, material grades, and any structural remediation the soil or the current framing demands. We give you a written line-item quote before work starts, and that number holds. Call (936) 259-2607 to schedule your free estimate.
| Project | Montclair Price Range |
|---|---|
| Home Addition | $45,000 – $130,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Window Replacement | $4,500 – $15,000 |
We Also Serve Cities Near Montclair
Our crews cover General Contractor in Montclair and the surrounding Inland Empire communities. We work regularly in Claremont, Ontario, Pomona, and La Verne. If you’re just across the county line, call us, and we’ll confirm coverage for your street before you schedule anything.
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
Montclair runs its own building department under San Bernardino County codes, not LA County. Inspectors here check Title 24 energy compliance closely, even on small additions. If your contractor assumes Pomona’s rules apply, your permit gets flagged. Call (936) 259-2607 for an exact quote, and we’ll confirm your project’s permit path before you sign.
If your contractor documents the wind rating of installed windows, roofing, and exterior membranes, your carrier has a much easier time approving a claim after a Santa Ana event. Undocumented or underrated work is where claims get denied. We provide written scope and inspection documentation on every Montclair project. Call (936) 259-2607 and we’ll walk you through what that paperwork looks like.
Montclair’s position on a south-facing alluvial fan means summer heat and Santa Ana winds stress roofing and exterior membranes harder than in coastal markets. The specific wind-load rating depends on your exact block and elevation. We specify materials that meet or exceed what your Montclair permit requires, and we document that rating in writing. Call (936) 259-2607 for a free estimate on your project.
It might be. Montclair’s expansive alluvial clay swells and shrinks against concrete slabs, which regularly produces movement in homes built from the 1950s through the 1970s. Cracks that run wider than a quarter inch or open and close seasonally are worth an inspection. We’ll look at the pattern, check the footing, and tell you if it’s cosmetic or structural. Call (936) 259-2607 and we’ll schedule a site visit.
A compliant quote includes the permit pulled through Montclair’s building department, Title 24 energy documentation, seismic detailing where San Bernardino County requires it, and a written scope with wind-load ratings for any exterior or window work. Cheap quotes leave those out, and you pay for it later. Call (936) 259-2607 and we’ll give you a written quote that covers the whole job.
We were called to a 1962 stucco-over-wood-frame tract home near the Garey Avenue boundary where the original single-pane aluminum windows were failing energy-code requirements on a planned addition. Our crew pulled the Montclair permit, documented Title 24 compliance with impact-rated units, and opened up a cracked slab section that the expansive alluvial clay had shifted, then coordinated the inspection sign-off on the rough-in before closing walls. The homeowner’s carrier later accepted our written scope and inspection documentation when they filed a wind-damage claim tied to a Santa Ana event. That’s the difference between a contractor who works in Montclair and one who just works near it.
When you’re ready for a written number, call (936) 259-2607. Trevor Nash and the Penhallow Remodeling team will come out, look at your Montclair home, and hand you a written quote and a written guarantee before any work starts.
Written by Trevor Nash, Owner at Penhallow Remodeling, serving Montclair homeowners with written pricing and the 365-Day Done Right Promise on every job.







Before
After
Before
After
Before
After