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Fast, Reliable General Contractor Across Claremont
Most of our Home Remodeling in Claremont falls into a few clear price bands: a kitchen remodel runs $14,000 to $45,000, a bathroom remodel $9,000 to $28,000, and a full home addition $45,000 to $130,000. You get a written price before any work starts, and every crew member who steps onto your property has been identity-verified and introduced to you by name and photo before the visit. Call Mason Remodeling at (803) 680-2547 to schedule a free estimate and get your project scoped correctly from day one.
We work throughout Claremont, from the tree-lined streets of the Village to newer subdivisions north of Base Line Road. Our scheduling team coordinates from the brand’s Los Angeles office, and crews serve Claremont directly. The result is the same Threshold Verified standard on every job: background-checked technicians in clean marked uniforms, photo ID badges at the door, and a written guarantee covering 365 days from the completion date.
Why Mason Remodeling Is Claremont’s Preferred General Contractor Company

Claremont homeowners deal with a building department that most neighboring cities don’t have. The City of Claremont runs its own plan check and inspection process, separate from LA County. That means permit timelines, rough-in inspections, and final sign-offs work differently here than in Montclair or Upland. Our team knows the Claremont building department’s process, which means fewer surprises on inspection day and fewer delays while a permit sits in review.
Mason Remodeling has been doing residential construction since 2004, operating as part of the Threshold Group family of home-service companies. Every Claremont project meets the Threshold Standard: identity-verified crew members, written pricing before work begins, and a written guarantee with clearly stated terms. If a repair or installation fails within 365 days, we return and make it right at no cost.
Isaac Pruett leads our team. Homeowners who call (803) 680-2547 speak to a live person, 24 hours a day, 7 days a week. No call trees, no voicemail loops, no waiting until Monday morning to get a question answered.
Styles & brands we work with







Residential General Contractor in Claremont
Residential General Contractor work in Claremont is about scoping a project correctly before a single wall is opened. That means understanding what is behind the walls of a 1925 bungalow near Indian Hill Boulevard, what the city’s own building department will require at inspection, and what the final finishes actually cost. A homeowner who skips that scoping step ends up with change orders, blown budgets, and a project that sits half-finished.
When you hire Mason Remodeling as your General Contractor, the first milestone is a written line-item scope and price. Not a ballpark. Not a verbal estimate. A written price covering the specific work, delivered before we unpack a single tool.
Kitchen and Bath Remodeling
Kitchen remodels in Claremont typically run $14,000 to $45,000, depending on layout changes, cabinetry grade, and whether structural work is needed. Bathroom remodels run $9,000 to $28,000. In older Village homes, expect the “behind the walls” scope to matter: rot repair, outdated plumbing, and missing fire blocking are common finds.
Whole-Home and Addition Work
A home addition in Claremont runs $45,000 to $130,000. ADU construction runs $90,000 to $220,000. These are permit-heavy projects, and Claremont’s local building department means plan check happens inside the city, not through the county. We handle the plans, permits, and inspections as part of the written scope.
Hire a General Contractor in Claremont

Hire a General Contractor in Claremont when the project involves permits, structural changes, or coordinating multiple trades. You don’t want to manage an electrician, a plumber, a drywaller, and a tile setter yourself, and you don’t want to learn Claremont’s local inspection requirements by getting red-tagged. A general contractor handles the trade coordination, the permit paperwork, and the schedule.
We serve homeowners across Claremont, including the Village, Claraboya, and neighborhoods near Thompson Creek. Each project gets a dedicated point of contact, a written schedule with realistic milestones, and a final punch list that is completed before final inspection.
Permit and Inspection Management
Claremont is one of the few LA County cities still using its own building department. That is not a small detail. Plan check timing, required corrections, and inspection scheduling all follow Claremont’s rules, not the county’s. We pull permits, coordinate inspections, and walk the project through to final sign-off.
Written Price, No Allowance Games
The most common budget blow-up in Claremont renovations is low allowances. A contractor quotes $4,000 for cabinetry when the client actually wants KraftMaid or Wellborn cabinets and Cambria counters. Then the change order arrives and the budget is gone. Mason Remodeling prices the actual finishes you choose, in writing, before work starts.
Trusted Brands We Service in Claremont
We install and service specification-grade products from Cambria, Silestone, KraftMaid, Wellborn, Kohler, and Moen. Because we have direct material partnerships, Claremont customers get access to professional-grade products at pricing that reflects our standing as a Threshold Group company. We also work with modular and prefab building systems from Dvele and Abodu for ADU and addition projects where off-site construction shortens the on-site calendar. Parts and materials are ordered early so the schedule doesn’t stall waiting on a backordered cabinet or a special-order countertop.
See the difference
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AfterCommon General Contractor Problems We See in Claremont Homes
- Missing structural headers in pre-1950 Village homes. On a 1920s bungalow near Harvard Avenue and Bonita Avenue in the Claremont Village area, our crew opened a kitchen wall and found no structural header. It was load-bearing, so we pulled permits, added an engineered beam, and coordinated inspection sign-off before drywall.
- Knob-and-tube wiring uncovered during remodel work. Many Claremont homes built before 1950 still have active knob-and-tube circuits. Open a wall for a kitchen remodel and you may find wiring that needs to be replaced before the city will pass rough-in inspection.
- Undersized floor joists causing tile failure. In older Claremont homes, floor joists were often sized for the loads of 1925, not for a modern tile floor over Schluter membrane. We check deflection before tile goes down, because cracked grout six months later is not a warranty issue, it’s a structural one.
- Claremont-specific plan check surprises. Because Claremont runs its own building department, requirements that are routine in Ontario or Upland may be handled differently here. We know the local process and build it into the schedule from the start.
Pricing for General Contractor in Claremont, CA
Here are real Claremont market ranges for the most common general contractor projects we scope:
| Project | Typical Claremont 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 |
What moves the price in Claremont: the age of the house, whether structural work is found once walls are opened, the finish level you choose, and what the city’s plan check requires. Every Mason Remodeling project gets a written price before work starts, and that price does not grow through surprise change orders. Call (803) 680-2547 for a free estimate with line-item pricing.
We Also Serve Cities Near Claremont
Our crews work throughout the eastern San Gabriel Valley and the Inland Empire border. In addition to General Contractor in Claremont, we serve Montclair, La Verne, Upland, and Ontario. If you live just over the city line in any of those communities, the same written pricing and Threshold Verified crew standards apply.
Serving Claremont, CA - Our Local Coverage Area
We’re based in the Claremont 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 Claremont
Yes. Claremont runs its own building department with its own permitting and inspection process, separate from LA County. Any project involving structural changes, electrical work, plumbing, or wall relocation requires a city-issued permit, and Claremont’s plan check and inspection scheduling follow the city’s own calendar and requirements. Mason Remodeling handles the permits, plans, and inspections as part of the written scope. Call (803) 680-2547 to get your project scoped correctly.
A general contractor coordinates every trade, pulls the permits, schedules the inspections, orders the materials, and manages the schedule from demolition to final walkthrough. In Claremont that also means managing the city’s own building department requirements, which differ from county-administered cities nearby. We provide a written price, a schedule, and a single point of contact so you’re not calling seven different subcontractors. Call (803) 680-2547 for a free estimate.
Most kitchen remodels in Claremont take 6 to 10 weeks from demolition to final inspection, assuming no major structural surprises. Homes in the Village built before 1950 can add 1 to 2 weeks if structural repairs, knob-and-tube replacement, or subfloor work is needed. Claremont’s local building department inspection calendar can also affect timing. We build a realistic schedule at the start and update you as milestones complete.
Unknown conditions behind walls: missing structural headers, old wiring, rotted subfloor, or undersized joists. A responsible contractor scopes for these before pricing, but some conditions can only be confirmed by opening walls. The difference is that Mason Remodeling prices the written scope honestly up front and documents any discovered condition with photos and a written line-item change before proceeding. No surprise invoices at the end. Call (803) 680-2547 to discuss your project.
Yes. ADU construction in Claremont typically runs $90,000 to $220,000, and home additions run $45,000 to $130,000. Both require Claremont city permits, plan check, and inspections, which we manage from start to final sign-off. We also work with Dvele and Abodu for prefab and modular ADU systems where off-site construction fits the project. Call (803) 680-2547 for a free estimate.
Written by Isaac Pruett, Owner at Mason Remodeling, part of the Threshold Group family of home-service companies.










