Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable General Contractor Across Monrovia
If you’re weighing a kitchen remodel, bathroom update, or room addition in Monrovia, the first question isn’t usually “who can build it.” It’s “who can price it honestly and actually show up.” That’s what we do. Mason Remodeling has served Monrovia homeowners with general contracting since our founding in 2004, and the work here has its own character: older foothill homes, pier-and-beam foundations, and permits that the city actually enforces. Before you sign anything, you’ll get a written price, a named crew, and a clear schedule. Call (803) 680-2547 to talk through your project and set up a free estimate.
Monrovia isn’t a generic suburb, and we don’t treat it like one. Homes off Foothill Boulevard near the base of the San Gabriels were built in waves from the 1910s through the 1950s, and their foundations, subfloors, and framing behave differently than a 1990s tract house in Duarte or Baldwin Park. We plan for that before we quote, not after we open a wall.
Why Mason Remodeling Is Monrovia’s Preferred General Contractor Company
Our reputation in Monrovia comes down to one thing: we show up with a plan and a price, and we don’t change either without your signature. Every Mason Remodeling crew member is background-checked and identity-verified under the Threshold Standard. Before the first day of work, you get the name and photo of each person who will walk through your door. They arrive in a clean marked uniform with a photo ID badge. If you’re home alone during the day, or you have young kids, you’ll know exactly who is coming.
Isaac Pruett leads our Monrovia projects. He has pulled permits at the city counter on South Ivy Avenue enough times to know which inspectors review what, and he walks homeowners through the rough-in, framing, and final sign-off sequence without drama. Monrovia customers keep calling us back because the written guarantee is actual paper with actual dates: 365 days from completion, covering workmanship, with a free return visit if anything fails. No conditions, no dispute process.
We answer the phone. A live person picks up 24 hours a day, 7 days a week. When a homeowner in the Wildrose neighborhood calls about a cracked beam or a leaking shower pan, they don’t get a call tree. They get a person who can schedule an inspection and get the right crew to Monrovia that week.
Styles & brands we work with
General Contractor Services in Monrovia
General Contractor Services in Monrovia means coordinating the trades, the permits, the materials, and the inspections so you don’t have to. When a Monrovia homeowner needs a kitchen gutted to the studs, a bathroom reconfigured, or a load-bearing wall removed, the general contractor is the person who keeps framing, electrical, plumbing, and tile on the same schedule. In Monrovia, kitchen remodels typically run $14,000 – $45,000, bathrooms $9,000 – $28,000, and a home addition $45,000 – $130,000. Those numbers reflect real local labor rates and the cost of pulling city permits.
Kitchen and Bath Remodeling
We scope the job from the crawlspace up. That’s not an expression. In Monrovia’s older homes, floor level, subfloor condition, and joist spacing all affect what tile, cabinets, and countertops you can install without future cracking. We specify KraftMaid cabinets, Cambria or Silestone surfaces, and Kohler or Moen fixtures in the written quote so the allowances don’t quietly shrink after contract. Every selection is priced before demo day.
Room Additions and ADUs
A Monrovia room addition is a different animal from a remodel. The city reviews setbacks, lot coverage, and foundation plans. We pull the permit package, coordinate the soil and structural work, and pass the inspections in the required order. ADUs in Monrovia typically start around $90,000 and can exceed $220,000 depending on site conditions. We’ll tell you the real number before you spend a dollar on plans you can’t build.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Construction Company in Monrovia
A Construction Company in Monrovia is judged by how it handles the parts of the job the homeowner can’t see. That’s the subfloor, the crawlspace, the headers over new openings, and the waterproofing behind the shower tile. When we’re hired as the construction company on a Monrovia project, we’re responsible for the sequence: demo, rough framing, rough plumbing and electrical, inspection, insulation, drywall, finish work, and final sign-off. Homeowners in the Monrovia foothills often ask us to also handle driveway and patio work. Paver patios run $3,500 – $11,000, and concrete driveways $4,500 – $12,000.
Structural and Foundation Work
Monrovia’s older homes near the foothills often sit on raised pier-and-beam foundations with a two-to-three-foot crawlspace. We verify the subfloor framing and floor level before any tile or cabinet goes in, not just patch what is visible. If dry rot or termite damage shows up in the joists, we flag it with a written change order and photographs. You approve the number before we touch it.
Permits and Inspections
We don’t skip permits. Not on a small bathroom, not on a kitchen, not on a deck. In Monrovia, unpermitted plumbing or structural work is flagged at resale and can force the homeowner to tear it out. We pull the permits, schedule the inspections, and hand you a written punch list at the end that closes within days, not months.
Trusted Brands We Service in Monrovia
We stock and install specification-grade materials from brands Monrovia homeowners actually ask for: KraftMaid and Wellborn cabinetry, Cambria, Silestone, and Caesarstone countertops, Kohler, Moen, and Toto fixtures, and GAF and CertainTeed roofing. For prefabricated ADU shells, we coordinate with studios like Abodu and Dvele when the project calls for it, handling the site work, foundation, utility connections, and finish trades. Because we order directly through our supplier partnerships, Monrovia customers get shorter lead times on cabinets and countertops than a solo remodeler buying off the shelf at a big-box store.
See the difference
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After
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After
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AfterCommon General Contractor Problems We See in Monrovia Homes
- Phone-quote pricing on sloped floors. A contractor who prices a Monrovia kitchen from a phone description without inspecting the crawlspace will surprise you with a change order once the floor is opened. We open the subfloor inspection before we quote.
- Skipped permits on bathrooms. Some contractors pitch a Monrovia bath remodel as “too small to permit.” That unpermitted plumbing becomes a resale problem. The seller’s disclosure reveals it, and the new buyer’s inspector catches it. We pull the permit, every time.
- Vague allowance games. A low bid built on “cabinet allowance” and “countertop allowance” isn’t a real price. When you pick actual KraftMaid cabinets or a Cambria slab, the cost jumps. Our written quote names the exact products and the exact installed price.
- Foothill drainage surprises. Monrovia homes below the San Gabriels see real storm runoff in wet years. We check grading, downspouts, and crawlspace moisture before we frame an addition or finish a basement, so water doesn’t show up behind the drywall a year later.
Pricing for General Contractor in Monrovia, CA
Here’s what Monrovia work actually costs, in writing. These are the ranges we quote against, and they don’t drift once the contract is signed.
| Service | Typical Monrovia Range |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Cabinet Installation | $4,000 – $13,000 |
| Countertop Installation | $2,000 – $6,500 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
The biggest cost drivers in Monrovia are foundation condition, permit fees, and whether the house is on a crawlspace or a slab. An older bungalow off Myrtle Avenue with sloped floors will cost more to prep than a 1980s ranch in the Duarte flats, and that prep work is exactly what protects your tile and cabinets long term. The estimate is free. You’ll get a written line-item quote before any work starts.
We Also Serve Cities Near Monrovia
Our crews work throughout the San Gabriel Valley. In addition to Monrovia, you’ll find our General Contractor team on job sites in Arcadia, Duarte, Sierra Madre, and Baldwin Park. Same written pricing, same crew verification, same 365-Day Done Right Promise.
Serving Monrovia, CA - Our Local Coverage Area
We’re based in the Monrovia 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 Monrovia
In Monrovia, you’ll typically need a building permit for any kitchen or bathroom remodel that moves plumbing, alters framing, or changes electrical circuits. That covers most real remodels. The city also requires separate trade permits for electrical, plumbing, and mechanical work, and a final inspection before the walls are closed. We pull all of these on your behalf, schedule the inspections, and keep a written record of every sign-off. Call (803) 680-2547 if you want us to check your specific project against city requirements before you commit.
A typical Monrovia kitchen remodel takes 6 to 10 weeks from signed contract to final punch list. Demo and rough framing take the first week, plumbing and electrical rough-in the second, and then the city inspection happens before insulation and drywall close the walls. Cabinet installation, countertop templating, and finish work follow. Older homes on pier-and-beam foundations sometimes add a week if we’re leveling floors or replacing joists we couldn’t see before demo. You’ll get a week-by-week schedule in writing before we start, and we update it if an inspection date slips.
The three biggest cost drivers in a Monrovia bathroom remodel are the condition of the subfloor under the tile, the plumbing layout, and the finish selections. A 1920s bungalow bathroom with a failing subfloor and galvanized pipes will cost more than a 1990s tract bathroom where the plumbing is already copper and the floor is level. Tile choices, vanity style, and whether you’re doing a tub-to-shower conversion also move the number. A small bathroom remodel in Monrovia runs $5,000 – $12,000, and a full bathroom remodel $9,000 – $28,000. Call (803) 680-2547 for a written quote on your exact floor plan.
Change orders happen when the existing structure isn’t what the house looks like from the outside. In Monrovia, that usually means dry-rotted joists under an old bathroom floor, unpermitted wiring from a prior owner, or drain lines that aren’t where the plans say they are. We control them with a written scope and a pre-construction inspection. If anything is outside the written quote, you receive a change order with photos and a fixed price before work continues. The only thing we won’t do is pretend a problem doesn’t exist to keep the number low.
Yes. An ADU or home addition in Monrovia goes through plan review before we ever break ground, and the city reviews setbacks, lot coverage, foundation engineering, and utility connections. You’ll need a soils report in many cases, and the inspection sequence includes foundation, framing, rough-in, insulation, and final. ADUs in Monrovia typically run $90,000 – $220,000 depending on site conditions and whether you go with a custom build or a prefabricated shell from a studio like Cover or Dvele. We manage the permit package and the inspections as part of the contract. Call (803) 680-2547 for a free estimate on your ADU scope.
Written by Isaac Pruett, Owner at Mason Remodeling, serving Monrovia since 2004.
