







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable General Contractor Across Whittier
Hiring a General Contractor in Whittier means finding someone who understands what this city’s homes actually need: older framing that hides surprises, historic design rules most neighboring cities don’t have, and clay soil that moves hardscape over time. A typical kitchen remodel here runs $14,000 – $45,000, a bathroom $9,000 – $28,000, and a home addition $45,000 – $130,000. Those are real numbers for Whittier’s market, not Los Angeles County averages. Mason Remodeling brings written pricing, named and verified crews, and a 365-day guarantee to every project we take on in Whittier. Call (803) 680-2547 for a free estimate.
Why Mason Remodeling Is Whittier’s Preferred General Contractor Company

Whittier homeowners keep calling us back because we put the price in writing before one tool leaves the truck. That’s not a promotion. It’s how we’ve operated since 2004, and Isaac Pruett, our owner, holds every project to that standard. No verbal ballpark that grows once the walls open. No surprise invoices at final walkthrough. Just a scope of work with real allowances, written down, signed by both sides.
Residents from the Uptown district to the Friendly Hills side of Colima Road tell us the same thing: they want to know exactly who is walking through the door. Every Mason Remodeling technician is background-checked, identity-verified under the Threshold Standard, and introduced to you by name and photo before arrival. They show a photo ID badge at the door. They wear a clean, marked uniform. That’s the standard for every job in Whittier, from a small bathroom update near Whittier Boulevard to a full home addition off Painter Avenue.
We coordinate scheduling and dispatch from our Los Angeles office, with crews serving Whittier directly. That means real local coordination without a storefront gimmick. You get a live person on the phone 24/7, a written price before work starts, and a free second visit if anything fails within a year. That’s the 365-Day Done Right Promise, and it applies to every general contracting, bathroom remodeling, and whole-home project we complete.
Styles & brands we work with







Licensed General Contractor in Whittier
A Licensed General Contractor in Whittier handles the permitting, trade coordination, and building-code compliance side of a remodel or addition, and that’s where local knowledge earns its keep. Whittier’s Uptown and Historic Residential Districts sit inside a locally designated historic overlay, so exterior and even some interior remodel scopes here trigger design-review or Certificate of Appropriateness review on top of standard Whittier building permits. This is a step most neighboring cities don’t impose, and missing it can stall a project for months. Isaac Pruett’s crews know which Whittier neighborhoods fall inside the overlay and when a design-review filing has to happen before structural plans get submitted.
Kitchen and Bath Remodel Coordination
A licensed contractor coordinates the plumbing rough-in, electrical circuits, drywall, tile, cabinetry, and finish work in sequence so your Whittier home isn’t torn apart longer than necessary. On Whittier’s 1920s – 1950s housing stock, that often means discovering framing repairs or subfloor replacement once demo starts. We document hidden damage, write a change order before touching it, and keep the project moving. For a bathroom remodel in the $9,000 – $28,000 range, that coordination is the difference between a four-week job and a four-month headache.
Kitchen remodels in Whittier typically run $14,000 – $45,000 depending on cabinet grade, countertop selection, appliance rough-ins, and whether the layout changes. A small kitchen without structural changes can stay in the low end. Moving plumbing, opening walls, or replacing framing pushes toward the upper end. We write every allowance into the contract up front.
Residential General Contractor in Whittier

A Residential General Contractor in Whittier manages projects that most homeowners only take on once or twice in a lifetime: room additions, garage conversions, ADU construction, and whole-home remodels. These aren’t weekend projects. They involve structural engineering, foundation work, electrical panels, and permit inspections at multiple stages. Whittier’s building department requires sign-off on structural, electrical, and plumbing rough-in before the walls get closed. Skipping that sign-off resurfacing at resale when a buyer’s inspector flags the unpermitted work.
Additions, ADUs, and Garage Conversions
Home additions in Whittier run $45,000 – $130,000. ADU construction falls between $90,000 and $220,000. Garage conversions are more accessible at $30,000 – $80,000, and they’re popular in neighborhoods like the area around Hadley Street and Greenleaf Avenue where detached garages sit on alley access. Tight alley access is a real constraint in Whittier; it slows material staging and dumpster placement. We plan for that before the first delivery arrives. A written price means the number you approved is the number you pay, with change orders only for documented, site-verified discoveries.
On a 1940s bungalow near Hadley Street and Greenleaf Avenue, we pulled a general contractor permit for a full kitchen remodel and found termite-damaged framing plus a soft subfloor once the old tile came up. We documented the hidden damage, wrote a change order with the homeowner before touching it, and finished with KraftMaid cabinets, a Cambria countertop, and a punch list signed off at final inspection. That’s the standard for every residential job we take in Whittier.
Trusted Brands We Service in Whittier
We stock and install parts from specification-grade brands that Whittier homeowners can rely on: KraftMaid and Wellborn cabinetry, Cambria and Silestone countertops, Kohler and Moen fixtures, GAF and CertainTeed roofing, and Belgard or Unilock hardscape products. Prefab and panelized systems from companies like Abodu and Dvele have also improved a lot in recent years, and we’re comfortable integrating them on ADU and addition projects where they make sense for the site. Working with vetted, professional-grade products in one place means you don’t spend weekends chasing supply-house runs or waiting on backordered parts from three different vendors.
See the difference
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AfterCommon General Contractor Problems We See in Whittier Homes
- Phone estimates that balloon after demo: Whittier’s 1920s – 1950s housing stock hides framing damage, outdated wiring, and deteriorated subfloors. A contractor who quotes over the phone without inspecting those hidden layers will hand you change orders once the walls open. We write the scope with allowances after a real site visit, not before.
- Unpermitted work flagged at resale: Structural, electrical, and plumbing rough-in work requires permit sign-off in Whittier. When it’s skipped, the city permit history and a buyer’s inspector will eventually find it. We pull permits and pass inspections on every job where they apply.
- Clay-soil movement on hardscape and driveways: Whittier’s clay soil expands and contracts with moisture, which shifts paver and concrete surfaces over time. A paver driveway installed without proper base compaction will show movement within a few seasons. We factor soil conditions into every hardscape scope.
- Historic overlay surprises: If your home sits in the Uptown or Historic Residential District, exterior work and some interior changes need design-review approval before permits go through. Contractors unfamiliar with Whittier won’t catch this until the city stops the permit. We check overlay boundaries on every project before pricing.
Pricing for General Contractor in Whittier, CA
Here are the real ranges we quote in Whittier, based on current labor rates, material costs, and what our local crews see on the ground. These are the numbers you should expect to see in a written bid:
| Project Type | Typical Whittier 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 |
| Roof Replacement | $8,000 – $20,000 |
| Window Replacement | $4,500 – $15,000 |
| Paver Driveway Installation | $7,000 – $18,000 |
| Concrete Driveway Installation | $4,500 – $12,000 |
What moves a Whittier project through these ranges? Cabinet grade and countertop material drive kitchen pricing. Structural changes and foundation work drive additions. Clay-soil prep and alley access drive driveway and hardscape costs. Historic overlay review can add design fees and timeline. Call (803) 680-2547 for a free written estimate. You’ll get an exact number, not a range, and it’s free.
We Also Serve Cities Near Whittier
Our crews regularly work in the communities around Whittier, including Pico Rivera, South El Monte, Hacienda Heights, and Montebello. If you’re just over the city line and wondering whether we can help, call (803) 680-2547. We’ll tell you straight whether your project falls inside our service area and schedule a site visit if it does.
Serving Whittier, CA - Our Local Coverage Area
We’re based in the Whittier 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 Whittier
Yes, if your remodel changes plumbing, electrical, structural elements, or the building envelope, Whittier’s building department requires a permit, and homes in the Uptown or Historic Residential Districts may also need design-review or Certificate of Appropriateness approval on top of the building permit. Basic cosmetic work like painting, trim, or replacing a vanity in the same location usually doesn’t. We confirm permit requirements before we write your estimate so there are no surprises. Call (803) 680-2547 if you’re not sure whether your project needs one.
A kitchen remodel in Whittier typically runs $14,000 – $45,000, with smaller kitchens without layout changes starting around $9,000 – $20,000. The main cost drivers are cabinet grade, countertop material, appliance rough-in changes, and whether you’re moving plumbing or opening walls. Older Whittier homes sometimes reveal framing or subfloor damage during demo, which we document and price as a change order before any repair work begins. Call (803) 680-2547 for an exact written quote for your kitchen.
A change order is a written, signed document that adds or subtracts work from your original contract, and it becomes part of the project record. In Whittier, where older homes frequently hide termite damage, outdated wiring, or deteriorated subfloors, change orders happen when we open a wall and find something the original scope couldn’t see. We always show you the problem, explain the fix, and get your written approval before any extra work starts. You never pay for a surprise you didn’t approve. Call (803) 680-2547 to discuss how we handle change orders on Whittier projects.
Yes, we convert detached and attached garages in Whittier into permitted ADUs, with costs typically ranging $30,000 – $80,000 depending on plumbing, electrical panel capacity, foundation condition, and whether you’re adding a new entrance. Whittier has specific ADU parking and setback rules, and properties with alley access often have different staging and delivery constraints. We handle the permitting, inspections, and all trade work. Call (803) 680-2547 to see whether your garage qualifies for conversion.
Most Whittier kitchen or bathroom remodels take 3 – 8 weeks depending on scope, while a home addition or ADU construction typically runs 4 – 9 months once permits are approved. Whittier’s historic overlay review can add weeks to the permit phase for affected properties, and tight alley access on many streets slows material staging. We give you a written schedule with every estimate and update it as the job progresses. Call (803) 680-2547 to get a realistic timeline for your specific project.
Written by Isaac Pruett, Owner at Mason Remodeling, serving Whittier homes with written pricing and the 365-Day Done Right Promise since 2004.










