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Fast, Reliable General Contractor Across Bonita
Most Bonita homeowners calling us for the first time want to know three things: who’s coming to the house, what the work will actually cost, and how long before they can use the new space. Here’s the straight answer. You’ll get a written price before any work starts, not a verbal ballpark that drifts upward. The crew that arrives will be background-checked, uniformed, and introduced to you by name and photo before they ring the bell. And a typical kitchen or bathroom remodel in Bonita runs $9,000 to $45,000 depending on scope, finishes, and what’s hiding behind the walls. Call (803) 680-2547 to schedule a free estimate.
We’ve worked enough homes off Bonita Road, along Sweetwater Road, and up toward the San Diego Country Estates edge to know that a remodel here isn’t the same job as one in Chula Vista or National City. That’s the point of this page: to walk you through what a General Contractor job in Bonita actually involves, what it costs, and what to watch for.
Why Mason Remodeling Is Bonita’s Preferred General Contractor Company

Mason Remodeling has handled general contracting, bathroom remodeling, and whole-home projects since 2004, operating under the Threshold Group family of home-service companies. Every location holds to the Threshold Standard: every technician is background-checked, identity-verified, arrives in a clean marked uniform, shows a photo ID badge at the door, and is introduced by name and photo before the visit.
For Bonita homeowners, that matters more than in a typical suburban tract. Much of this area is unincorporated county land. Homes sit on larger lots with septic systems, wells, and long driveways. The person you let through the door needs to be someone you can verify, and they need to understand rural county permitting, not just city code. Our crews work Bonita regularly, and we coordinate scheduling from our San Diego office.
Isaac Pruett leads Mason Remodeling, and the standard he sets is simple: a written price on every project, every time, before a single tool is unpacked. No verbal estimates that grow on the final bill. No surprise invoices. If the work isn’t right within 365 days of completion, we make it right at no cost under our 365-Day Done Right Promise.
Styles & brands we work with







Remodeling Contractor in Bonita
A Remodeling Contractor in Bonita handles the scoping, permit coordination, rough-in work, and finish carpentry that turn an existing room into something different. On unincorporated Bonita lots, that often means working around septic capacity, pad-mounted utility drops, and older ranch-style framing before a single wall opens. You need someone who reads the county’s rules the way a local reads the traffic on Bonita Road: with both eyes open. Kitchen remodels here typically run $14,000 – $45,000, bathrooms $9,000 – $28,000, and cabinet installation $4,000 – $13,000.
Kitchen Scope on Ranch Homes
Bonita kitchens in 1950s and 1960s ranch houses were built for a different life. Galley layouts, one circuit for the whole room, plumbing stub-outs in odd places. Opening one up usually means moving the sink rough-in, adding dedicated appliance circuits, and sometimes sistering a load-bearing header. We quote that work explicitly, with line items, so you know what’s structural and what’s cosmetic.
Bathroom Work in Older Slabs
Many Bonita bathrooms sit on slab foundations. Moving a drain means cutting concrete, not just dropping a line through floor joists. That’s a real cost driver, and it’s why honest bids for the same bathroom can differ by thousands. We write it out: jackhammer scope, new P-trap, patched slab, waterproofing, tile.
Licensed General Contractor in Bonita

A Licensed General Contractor in Bonita is the party who pulls permits, schedules inspections, and carries the job from demo to final sign-off. In unincorporated San Diego County, that’s not paperwork theater. County inspectors come out for rough electrical, plumbing, and structural changes, and a missed inspection can stall a project for a week. We pull the permits, name them in your written scope, and pass inspection before closing drywall. Home additions in Bonita run $45,000 – $130,000; ADU construction runs $90,000 – $220,000.
Permit and Inspection Handling
We know which Bonita work triggers a county review and which doesn’t. Moving a sink to an opposite wall? Permit. Swapping cabinets in place? Usually not. We’ll tell you plainly in the estimate what’s permitted and why, and we never skip a required permit to make a bid look cheaper. Skipped permits surface at resale, and unpermitted rough-in behind closed walls is a deal-killer in this market.
Septic and Well Considerations
Adding a bedroom, a bathroom, or an ADU on a Bonita property with septic can require a septic system capacity review. The county may ask for a perc test or tank inspection before approving the addition. That adds time and cost, and we factor it into the schedule honestly rather than discovering it mid-project.
Trusted Brands We Service in Bonita
Bonita homeowners shouldn’t have to drive to a big-box store and guess at cabinet or countertop quality. We work with specification-grade material partners including KraftMaid and Wellborn cabinetry, Cambria and Silestone surfaces, and Kohler, Moen, and Toto fixtures. For roofing, we run GAF and CertainTeed. That means vetted, professional-grade products in one place, and our crews know how they perform in Bonita’s climate. We also service homes built or remodeled with systems from Abodu and Cover, two companies whose panelized builds appear in Southern California backyards and add complexity when you’re altering a foundation or tying in utilities.
See the difference
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AfterCommon General Contractor Problems We See in Bonita Homes
- Lump-sum bids with no written scope of work. A verbal number sounds fine until the first change order. We see Bonita kitchens and baths where the homeowner thought the quote covered plumbing rough-in, but it didn’t. You get a written line-item scope from us before signing, and allowances are named explicitly.
- Skipped permits on unincorporated work. Because much of Bonita sits outside Chula Vista’s city permitting system, some contractors roll the dice. Later, a sale stalls when the county finds unpermitted rough-in behind closed walls. We pull permits when the job requires them, and we’ll say so in the contract.
- Scheduling built for tract homes, not rural lots. A Bonita job site on a long driveway with septic setbacks and a slower county inspection calendar doesn’t move like a National City in-fill lot. We schedule for reality: material deliveries, inspector availability, and weather around the Sweetwater River valley.
- Moisture trapped under old tile. Bonita’s cool marine layer and older slab homes create a pattern we see regularly: tile adhered directly to slab that trapped moisture for decades. When we open a bathroom floor off Sweetwater Road, we check for subfloor rot and corrosion before laying new tile.
On a ranch-style home off Bonita Road near the San Diego Country Estates edge, we opened a galley kitchen for a full remodel. We relocated the rough-in for the sink and range, sistered a load-bearing header, and rebuilt the subfloor where old tile had trapped moisture. The client chose KraftMaid cabinetry with a Cambria quartz top, and because the powder bath shared the wall, we pulled two permits and passed inspection sign-off before closing the drywall. That’s how a Bonita remodel should run: scoped, sequenced, and signed off.
Pricing for General Contractor in Bonita, CA
Here’s what Bonita homeowners can expect to pay for the most common projects. These ranges reflect local labor, county permit fees, and the reality of working on older ranch homes and larger rural lots.
| Project | Bonita Price Range |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Cabinet Installation | $4,000 – $13,000 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
What moves a Bonita kitchen from $14,000 toward $45,000 is straightforward: moving plumbing rough-in, adding circuits, structural header work, and the finish level you choose. Cambria quartz costs more than a standard laminate, and it should. We deliver a written price before work begins, with allowances spelled out, so the number you sign is the number you’re comparing. Call (803) 680-2547 for a free estimate.
We Also Serve Cities Near Bonita
Beyond Bonita, Mason Remodeling crews work regularly in Bonita and the surrounding communities: National City, Chula Vista, Lemon Grove, and Spring Valley. If your project is in one of those areas, the same written-price standard and background-checked crews apply.
Serving Bonita, CA - Our Local Coverage Area
We’re based in the Bonita 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 Bonita
Yes, you generally need a county permit for any remodel that moves plumbing, alters electrical wiring, removes or changes load-bearing walls, or adds square footage. Simple cosmetic swaps like cabinet refacing or painting don’t trigger a permit. The county’s inspection process is slower than a city’s, so we build that calendar into your schedule from day one. Call (803) 680-2547 and we’ll tell you exactly which permits your specific job needs.
A typical Bonita kitchen remodel runs 6 to 10 weeks from the day we sign the contract, assuming no structural surprises and normal county inspection turnaround. Cabinets take 4 to 6 weeks from order to delivery in most KraftMaid and Wellborn lines, and that’s usually the long pole. Septic review on an addition or ADU can add 2 to 6 weeks. We give you a realistic calendar in writing, not an optimistic one.
Bids vary because scopes vary. One contractor quotes cabinets and counters only; another includes plumbing rough-in, electrical, drywall repair, and permits. One quotes a verbal lump sum; another writes line items. In Bonita, the spread is wider because some homes are unincorporated county parcels with septic and well constraints that a tract-home contractor never sees. Compare written scopes side by side and ask which line items are missing. We’ll hand you ours.
The three honest answers are: hidden structural damage behind walls, owner-driven changes after the design is locked, and county requirements discovered during inspection. Rotted subfloor under old tile, a header that needs engineering, or a septic capacity review ordered mid-project all move the number. We scope thoroughly up front and put contingencies in writing so you’re not blindsided. Our written price includes named allowances, and we never hide behind vagueness like “TBD.”
Yes, but the septic system’s capacity matters. The county may require a septic evaluation and possibly a system upgrade before approving an ADU or a bedroom addition. Well water is generally fine for construction purposes, but the well’s output and water quality are part of the review for new dwelling space. We’ve navigated these reviews on Bonita hillside and ranch properties, and we’ll tell you the likely timeline and cost before you commit. Call (803) 680-2547 for a free estimate.
Written by Isaac Pruett, Owner at Mason Remodeling, serving Bonita since 2004.










