







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable General Contractor Across Montebello
If you own a home in Montebello built between the 1940s and 1960s, you already know what’s behind your walls: original galvanized supply lines, cloth-wrapped wiring, and 2×4 framing that was never meant to carry the loads we ask of it today. Our General Contractor team works on these homes every week, and we scope the concealed conditions before we ever hand you a number. A written price comes before any work starts, every time. Call (803) 680-2547 to have Isaac Pruett walk your project with you.
Why Mason Remodeling Is Montebello’s Preferred General Contractor Company

Montebello is a fully built-out city. There is no greenfield left to develop, which means every project we take on here is a remodel, an addition, or a conversion of an existing structure. That changes how a contractor has to think. You are not building on a clean pad with a known footprint. You are opening walls that have been closed up for 60 or 70 years, and what we find behind them determines the real cost, the real timeline, and the real permit path.
Isaac Pruett leads our crew verification and scoping for Montebello jobs, and the process is the same on every project: we document what we see during the walkthrough, we write down what we can’t see, and we build a contingency into the price so a surprise galvanized line or a slab patch doesn’t become a fight at the end of the month. Homeowners here tend to ask the same question: how do I know the price won’t move? The answer is the written scope and the written allowance schedule. If we open a wall and find cloth-wrapped wiring feeding the range circuit, that line item is already in the document, or the change order process is spelled out before we order materials.
Styles & brands we work with







Residential General Contractor in Montebello
Residential General Contractor work in Montebello means managing the whole remodel from demolition to final inspection, and doing it under the conditions this city’s housing stock actually presents. The mid-century tract homes here were built fast, with materials that have aged unevenly. A kitchen remodel might start as a cabinet swap and turn into an electrical panel upgrade once we see the load. A bathroom remodel might reveal cast-iron drain lines that have been holding on for decades and need to be replaced before any tile goes down. Our job is to sequence that work so the homeowner is never standing in a gutted room with no one on site and no written answer about what happens next.
Kitchen remodels in Montebello generally run $14,000 to $45,000 depending on footprint, cabinet grade (we install KraftMaid and Wellborn), and whether we are moving plumbing or leaving the sink where it is. Bathroom remodels run $9,000 to $28,000. Those are real ranges we stand behind on this page, and the written estimate you receive will fall inside them or tell you exactly why it doesn’t.
Mid-Century Home Remodels
Tract homes from the 1940s through 1960s have a specific set of problems: 2×4 exterior walls that need engineering review before any header is sized, undersized 100-amp panels that were fine for 1960 but can’t support a modern kitchen, and original galvanized supply lines that corrode from the inside out. We approach every Montebello remodel assuming those conditions exist until we prove otherwise, which is why our scoping includes opening a small exploratory section before the fixed price is finalized.
Load-Bearing Wall and Layout Changes
Removing a wall in an older Montebello home is rarely a simple demo job. The wall may be load-bearing, and the ceiling above it may be structural plaster over 2×4 rafters. We pull the engineering and the permit before any stud is cut, and we document the condition of the framing, the wiring, and any plumbing runs inside the wall so the final inspection does not turn into a resale nightmare later.
Hire a General Contractor in Montebello

When you hire a General Contractor in Montebello, you are hiring the person who holds the license, pulls the permits, schedules the inspections, and answers when the building department has a question about the rough framing or the electrical. A handyman can swap a faucet. A general contractor carries the responsibility for the whole permitted scope of work, from the first engineered drawing to the final occupancy sign-off. That distinction matters in Montebello because so much of our work involves older homes where the inspector wants to see exactly what was opened, what was replaced, and what was left alone.
We are part of the Threshold Group family of home-service companies, founded in 2004, and every crew member who comes to your door is background-checked, identity-verified, in uniform, and carrying a photo ID badge. You get the technician’s name and photo before the visit, and a written price before the work starts. Those are not add-ons. They are the standard.
Written Scope and Draw Schedule
The most common failure we see on Montebello jobs is a contractor bidding off a visual walkthrough with no written contingency, then hitting the owner with a surprise change order mid-job. We don’t work that way. The scope is written, the allowances are listed, and the draw schedule is tied to milestones. You know what each payment buys, and the job does not stall while materials sit in a warehouse and invoices pile up.
Permit and Inspection Coordination
Every load-bearing wall removal, panel upgrade, room addition, and ADU in Montebello goes through the city’s building department. We pull the permits in our name, schedule the inspections, and walk the inspector through the work when they arrive. If a rough inspection fails, we fix it and get back on the calendar. The homeowner never has to chase a permit or explain a condition to the city.
Trusted Brands We Service in Montebello
Our Montebello customers get access to specification-grade materials because we order them directly through our trade partnerships. For cabinets, that’s KraftMaid and Wellborn. For surfaces, Cambria, Silestone, and Caesarstone. For prefabricated ADU shells and panelized additions, we work with Abodu and Mighty Buildings when the project calls for factory-built components instead of traditional stick framing. That means shorter construction calendars on some Montebello lots and a tighter quality control loop than an on-site build can offer. We don’t ask homeowners to choose between a factory-built shell and a conventional addition without explaining the cost, the lead time, and the permit differences for each.
See the difference
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After
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After
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AfterCommon General Contractor Problems We See in Montebello Homes
- Original galvanized supply lines. The 1940s and 1950s plumbing in Montebello corrodes from the inside, reducing water pressure and eventually leaking behind walls. We usually replace these during any remodel that opens the wet walls, which is a real cost driver but a necessary one.
- Cloth-wrapped wiring and undersized panels. Federal Pacific and Zinsco panels are still common in this housing stock, and the cloth-wrapped branch circuits feeding ranges and dryers are past their useful life. This has to be addressed before a kitchen or addition passes inspection.
- Slab-on-grade subfloors with old vinyl adhesive. Many Montebello homes sit on slabs that were topped with self-leveling compound over old vinyl adhesive. Removing that properly requires abatement considerations, and we document it with photos so the change order is specific and justified.
- Termite-damaged framing and stucco concealment. Stucco hides a lot. When we open an exterior wall for a window replacement or a room addition, we often find termite galleries in the sill plates. That gets treated and replaced before any new framing ties in, and it’s written into the contingency schedule.
Pricing for General Contractor in Montebello, CA
These are the ranges we quote for Montebello work today, based on the local building stock and current material and labor costs. They are honest numbers, not bait. A kitchen remodel lands at $14,000 to $45,000. A bathroom remodel is $9,000 to $28,000. A home addition is $45,000 to $130,000 because additions on mid-century lots usually involve new foundation work, structural tie-ins, and upgraded electrical service. An ADU runs $90,000 to $220,000 depending on whether you choose a factory-built shell or stick framing. Garage conversions run $30,000 to $80,000.
| Service | Montebello 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 |
| Cabinet Installation | $4,000 – $13,000 |
| Countertop Installation | $2,000 – $6,500 |
| Impact Window Installation | $8,000 – $25,000 |
| Roof Replacement | $8,000 – $20,000 |
| Concrete Driveway Installation | $4,500 – $12,000 |
What moves the price inside these ranges is concealed condition, not contractor mood. Older plumbing, panel upgrades, and structural corrections are the big three in Montebello. Call (803) 680-2547 and we’ll put the exact number for your house in writing, with a free estimate and no obligation.
We Also Serve Cities Near Montebello
Our crews cover Montebello and the surrounding communities including General Contractor in Montebello, Pico Rivera, Monterey Park, Rosemead, and Bell Gardens. If you’re just outside the city line, the same scoping process and written pricing apply, and we’ll tell you upfront whether the permit jurisdiction changes anything on your job.
Serving Montebello, CA - Our Local Coverage Area
We’re based in the Montebello 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 Montebello
Yes, if the wall is load-bearing or contains plumbing or electrical. In Montebello’s 1940s through 1960s tract housing, a wall that looks non-load-bearing often is not. We pull the engineering review and the permit before any stud is cut, and we schedule the rough and final inspections with the city. Call (803) 680-2547 for a free walkthrough and we’ll tell you what your specific wall requires.
Because the original contractor scoped the job visually and didn’t write a contingency for concealed conditions like galvanized plumbing, cloth wiring, or termite framing. When those show up mid-job, the price jumps. Our written scope includes the allowance schedule and the change order process before demolition starts, so the price is stable and any adjustment is justified with photos and a written line item. Call (803) 680-2547 for a bid that accounts for what’s actually behind your walls.
A general contractor holds the license, pulls the permits, manages the subcontractors, schedules the inspections, and answers the building department. A handyman does small repairs without a permit. On a Montebello kitchen or bathroom remodel, the general contractor is the one the city holds responsible when a rough framing inspection needs a correction, which is why the written scope and milestone draw schedule matter. Call (803) 680-2547 and Isaac Pruett will walk the project with you and explain exactly what the permit path looks like.
A kitchen remodel generally takes 6 to 10 weeks depending on whether we are moving plumbing, upgrading the panel, or doing structural work. A bathroom remodel runs 3 to 6 weeks. Montebello’s older homes add time when concealed conditions surface, and we build that into the schedule upfront rather than letting the calendar drift. Call (803) 680-2547 for a written timeline tied to your specific scope.
Yes. ADU construction runs $90,000 to $220,000 and garage conversions run $30,000 to $80,000 in Montebello, depending on whether you choose a factory-built shell from Abodu or Mighty Buildings or conventional stick framing. Both paths require the same permit and inspection process, and we handle the drawings, the engineering, and the city sign-off. Call (803) 680-2547 for a free estimate on your lot.
Written by Isaac Pruett, Owner at Mason Remodeling, serving Montebello since 2004.










