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
Remodeling Company in Montclair, CA
Home renovation in Montclair means working with a very specific housing stock: 1950s-to-1970s single-story tract homes with stucco exteriors, shallow-pitch roofs, and attached garages that define the 91763 ZIP. These homes were built fast and tight on small infill lots, which shapes every remodel we take on here. Whether it’s a kitchen overhaul, a bathroom rebuild, or a garage-to-ADU conversion, the job has to respect the original low-slung ranch profile that Montclair’s permit planners enforce. Key Step Construction has served Montclair since 2017, and we plan each project around that reality from the first walkthrough. Call (855) 382-0824 when you’re ready to talk through your project.
Why Montclair Homes Are Different
Montclair sits in the Pomona Valley, where summers run hot and dry and winters are mild but occasionally wind-driven. Santa Ana wind advisories are a real scheduling factor here: red-flag warnings trigger restrictions on hot work, which can push roofing timelines a few days. We factor that into every exterior scope we schedule in Montclair.
The housing stock itself drives most of what we see. Homes along the older interior streets off Holt Boulevard and Ramona Avenue were built as tract ranches, with shallow roof slopes and stucco over wood framing. That means additions have to step the roofline down from the front facade so the street-facing massing stays low. It’s a detail that recurs across Montclair’s 91763 blocks and rarely comes up in newer neighboring cities. Materials matter here too: intense UV exposure breaks down cheap exterior products faster than homeowners expect, and expansive soil movement under slab foundations means we undercut and compact properly before any driveway or patio pour. A Montclair remodel isn’t interchangeable with a Chino or Pomona job. The permit office knows these blocks house by house, and so do we.
Styles & brands we work with
- Kitchen remodeling
- Bathroom remodeling
- Home additions & ADU
- Roofing
- Windows & doors
- Driveway & pavers
- Fence
Our Main Montclair Services
Most Montclair homeowners come to us through one of two doors: they need a general contractor to run a whole project, or they want a focused home remodel. Both are covered below, and each has its own dedicated Montclair page with deeper detail.
General Contractor in Montclair
When a Montclair home needs work across multiple trades, a general contractor keeps the project moving without the homeowner acting as project manager. Our General Contractor in Montclair page covers what it looks like to have one contract, one schedule, and one point of accountability across everything from roofing to cabinetry. For Montclair’s ranch-era homes, that often means coordinating stucco repair, window replacement, and a kitchen remodel without losing the home’s original street profile. We handle the permits, the trade sequencing, and the inspections. You make material decisions and approve the plan.

Home Remodeling in Montclair
A home remodel in Montclair usually centers on kitchens and bathrooms, but it can also mean converting an attached garage or knocking down an interior wall to open up a cramped 1960s floor plan. Our Home Remodeling in Montclair page breaks down the scopes, the timelines, and the realistic costs for homes in the 91763. Given how many homes here still have original cast-iron plumbing and single-pane aluminum windows, we often find that a “small” remodel expands once the walls come open. Planning for that from day one is what separates a calm remodel from a stressful one.

Home Renovation in Montclair
Home renovation in Montclair means working inside a defined constraint: the home is a 1950s-to-1970s tract ranch on a tight infill lot, and every change has to preserve the original low-pitch, stucco-clad profile that the city’s permit planners expect. The hot, dry Pomona Valley climate and occasional Santa Ana wind events add scheduling and material considerations that don’t apply elsewhere. A full-scope renovation here is a coordinated effort across multiple trades, which is exactly what our Home Renovation service is built for. One contractor, every system, from the foundation to the roofline.
Home Renovation Contractors
Signs you need it
You’re planning work that touches two or more systems at once, like a kitchen remodel plus a roof replacement plus new windows, and you don’t want to coordinate three separate crews on your own.
What it costs in Montclair
A full home renovation in Montclair is priced scope by scope, with kitchen remodels running $14,000 – $45,000 and bathroom remodels $9,000 – $28,000, depending on footprint and material selections.
How we do it
We walk the property, map the existing systems, build a phased scope with permit requirements for each trade, then run one schedule with one point of contact from demo through final inspection.
Home Renovation Companies
Signs you need it
You’ve gotten three bids that all handle a piece of the job but nobody will take responsibility for the whole house, and you’re tired of being the only person who knows what every sub is doing.
What it costs in Montclair
Whole-home renovation work in Montclair generally lands between $45,000 for a modest remodel and $220,000 for an ADU construction, with most mid-size scopes falling in the $30,000 – $80,000 range.
How we do it
We assign one project lead to your renovation, sequence the trades by permit dependency, and handle the inspections, change orders, and material long-lead items like cabinetry and windows so the schedule holds.
Home Improvement Contractors
Signs you need it
Your home has several deferred improvements, like a leaking flat-roof section over the garage, a kitchen stuck in 1978, and a driveway that’s spalling, and you want them handled in one coordinated push.
What it costs in Montclair
Home improvement scopes vary widely here; a roof repair runs $400 – $1,800, a paver patio $3,500 – $11,000, and a full kitchen remodel $14,000 – $45,000, so we itemize each line before you commit.
How we do it
We group improvements by trade adjacency, pricing each line item with materials and labor broken out, then schedule the work so interior and exterior crews aren’t stepping over each other.
Renovation Contractors
Signs you need it
You’ve already pulled partial permits or started a remodel with another crew and the project stalled, and you need someone to take over the whole thing and finish it to Montclair code.
What it costs in Montclair
Renovation takeovers are quoted after we inspect the existing work; common scopes we complete include walk-in shower installations at $4,500 – $12,000 and window replacements at $4,500 – $15,000.
How we do it
We audit the existing work against current code, identify what needs to be corrected, bring the permit history current, and fold the remaining scope into one clean contract.
What Home Renovation Costs in Montclair
| Item | Typical range in Montclair |
|---|---|
| Kitchen remodeling | $14,000 – $45,000 |
| Bathroom remodeling | $9,000 – $28,000 |
| Home addition | $45,000 – $130,000 |
How long does a home renovation take in Montclair?
Most whole-home renovations in Montclair run 10 to 16 weeks, depending on permitting and material lead times. Kitchen and bathroom remodels typically run 4 to 8 weeks. Santa Ana wind advisories can add a few days to any roofing phase. Call (855) 382-0824 for a schedule estimate on your specific scope.
Will the price change once work starts in Montclair?
Only if the scope changes. We write line-item quotes and walk the property before quoting, so surprises are rare. When we do open a wall and find unexpected damage, you get a written change order before any added work starts. Call (855) 382-0824 to schedule a free estimate.
Brands We Service in Montclair
We spec and install residential fencing brands like Master Halco, Jerith, and Bufftech, with parts and panels sourced for Montclair-area jobs through our California supply network. Most non-custom material arrives within two weeks, so your project isn’t waiting on a container. Our brands page has the full scope.
See the difference
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AfterPricing for Remodeling Company in Montclair, CA
| Service | Typical range in Montclair |
|---|---|
| Kitchen remodeling | $14,000 – $45,000 |
| Small kitchen remodeling | $9,000 – $20,000 |
| Bathroom remodeling | $9,000 – $28,000 |
| Walk-in shower installation | $4,500 – $12,000 |
| Tub-to-shower conversion | $3,500 – $10,000 |
| Paver patio installation | $3,500 – $11,000 |
| Roof replacement | $8,000 – $20,000 |
| Window replacement | $4,500 – $15,000 |
| Vinyl fence installation | $3,500 – $9,000 |
| ADU construction | $90,000 – $220,000 |
| Garage conversion | $30,000 – $80,000 |
| Driveway replacement | $5,000 – $14,000 |
Prices in Montclair are pushed upward by stucco repair on original exteriors, the roof-step-down detail the city requires on additions, and the occasional dry-rot repair these 60-year-old homes hide. We quote upfront with a line-by-line breakdown, and the number we start with is the number we build to unless you change the scope.
Neighborhoods We Serve in Montclair
We work throughout the 91763, from the older tract blocks north of the 10 Freeway to the streets south of Holt Boulevard and the neighborhoods near Montclair Place. Our crews know where to stage materials on these smaller infill lots without blocking neighbors, and we’re typically on site within a week of your call for an estimate.
- Ramona Avenue corridor
- Holt Boulevard area
- Monte Vista tract
- Mills Avenue blocks
- South of the 10 Freeway
Service Area – Cities Near Montclair
Key Step Construction also works in the neighboring cities that share Montclair’s Pomona Valley climate and ranch-era housing patterns. If you’re in Claremont, CA, Ontario, CA, Upland, CA, or La Verne, CA, we bring the same full-scope approach to your project with the same single-contractor accountability.
Serving Montclair, CA - Our Local Coverage Area
We serve Montclair and nearby communities. Use the map below to see the area we cover. If you’re nearby, we can almost certainly help.
FAQs About Remodeling Company in Montclair
Most structural, electrical, plumbing, and addition work in Montclair requires a city permit. Cosmetic updates like paint and flooring usually don’t. We pull permits for every scope that needs them and handle the inspections. Call (855) 382-0824 if you’re not sure whether your project triggers a permit.
Yes. Montclair planners require rooflines on additions to step down from the front facade, and most homeowners want to preserve the original stucco ranch profile anyway. We detail additions to match existing stucco texture, roof pitch, and window proportions.
We’re typically 2 to 4 weeks out for an estimate and 4 to 6 weeks out for project start on most scopes, depending on material lead times and your permit status. Larger renovations with cabinetry or prefab ADU components can add a few weeks. Call (855) 382-0824 for a current timeline.
Ready to plan your Montclair remodel? Call (855) 382-0824 for a free estimate and a clear, line-item plan for your home.
What happens when you call
- 1A real person answersNo phone trees. Talk to a local construction pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you. The visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Montclair Customers Say
"Excellent build. Costs came in about six percent over the original contract, driven mostly by material price movement during the build, which he documented each time."
- Luis Morales"Quality construction and a professional operation. Communication was strongest at the site meetings, and slower by email in between."
- Beatriz Salazar"Ground up build. Permits, foundation, framing, all of it, and he ran the schedule tightly enough that the subs were never tripping over each other. Finished within a month of a fourteen month estimate."
- Eric Park