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Fast, Reliable General Contractor Across National City
The question we hear most from National City homeowners isn’t “can you do this?” It’s “what will this actually cost, and who exactly is coming to my house?” Here’s the direct answer: a kitchen remodel in National City runs $14,000 – $45,000, a bathroom remodel $9,000 – $28,000, and a home addition $45,000 – $130,000. Every project gets a written price before any work starts, and every crew member is background-checked, identity-verified, and introduced to you by name and photo before they arrive. That’s the Threshold Standard, and it applies on every job we take in National City. Call (803) 680-2547 to schedule a free estimate.
We’ve worked in the neighborhoods around 8th Street, Highland Avenue, and the blocks east of I-5 long enough to know what’s behind those stucco walls and under those hardwood floors. National City’s housing stock is older than most of San Diego County, which means the scope of a remodel here is different than in newer developments. Permits run through National City’s own building department, not the county’s, so inspection timing follows a city-specific calendar. That matters when you’re sequencing rough-in work, drywall, and final sign-off.
Why Mason Remodeling Is National City’s Preferred General Contractor Company

Since 2004, Mason Remodeling has operated as part of the Threshold Group family of home-service companies, and the name carries weight in National City for a simple reason: we tell you who’s coming before they arrive. Every technician is background-checked, identity-verified, uniformed, and shows a photo ID badge at the door. You get their name and photo ahead of the visit, so there’s no mystery when the van pulls up on Division Street or East 18th.
National City homeowners, including parents with young kids and older adults home alone during the day, treat contractor visits as a safety decision first. That’s the right instinct. We back it with a written guarantee on every project, stating plainly what’s covered and for how long: 365 days from the completion date. If something fails within that year, we return and make it right at no charge. No dispute process, no fine print. It’s called the 365-Day Done Right Promise.
Our local reputation comes from the unglamorous stuff. We return calls. We show up when scheduled. We pull permits through National City’s building department and pass inspections the first time. And because dispatch is coordinated from the San Diego office with crews serving National City locally, we can get a project scoped quickly, often faster than homeowners expect. Call (803) 680-2547 and a live person answers, 24 hours a day, every day of the year.
Styles & brands we work with







Residential General Contractor in National City
A residential General Contractor in National City coordinates the whole remodel: plumbing, electrical, framing, drywall, tile, cabinets, counters, finishing. Our job is to keep the schedule honest, the permits clean, and the price written in ink before demolition day. For a typical National City kitchen or bathroom remodel, that means the subcontractors report to us, not you, and the inspection calendar follows National City’s building department rhythm.
What the Work Actually Involves
Most remodels in National City start with a site visit to check what’s behind the walls. In pre-1960 bungalows near East 4th Street or the streets off Highland Avenue, that often means knob-and-tube wiring, undersized panels, or subfloor damage. The scope grows once we open things up. We handle that by writing allowances for electrical upgrades and subfloor repair into the initial estimate, so the final number doesn’t surprise you mid-project.
When You Need Us
You need a residential general contractor when the project touches more than one trade. Swapping a faucet is a handyman call. Moving a wall, rewiring a kitchen, or reworking a bathroom layout requires permits and coordination. Any structural change, any new circuit, any gas line movement in National City means the city wants to see plans and an inspection. We manage all of it and hand you a written price first.
Hire a General Contractor in National City

When you hire a General Contractor in National City, you’re hiring one point of accountability. Isaac Pruett, who leads Mason Remodeling, set the standard on this: one written price, one crew, one schedule, one warranty. No passing blame between subs. If the electrician’s work fails inspection, that’s our problem to fix, not yours to chase.
Written Price Before Any Work Starts
Every National City project gets a written line-item price before a single tool is unpacked. Not a verbal range that grows on the final bill. The price lists materials, labor, permit fees, and allowances. If you upgrade from a standard cabinet to a KraftMaid line or choose a Cambria countertop instead of a basic laminate, we tell you what that adds before you commit. No change order lands on your lap without your signature.
The Crew You’ll Recognize at the Door
Before the crew arrives, you’ll have each technician’s name and photo. They show up in clean marked uniforms, show a photo ID badge at the door, and introduce themselves. This is the Threshold Standard, and it’s not a one-off courtesy. It’s how we operate on every job in National City, from small bathroom refreshes to full home additions.
Trusted Brands We Service in National City
We install and service cabinetry from KraftMaid and Wellborn, surfaces from Cambria, Silestone, and Caesarstone, fixtures from Kohler, Moen, and Toto, roofing from GAF and CertainTeed, and hardscaping from Belgard and Techo-Bloc. Because we stock common parts locally for our National City customers, turnaround on material-related fixes is fast. If you’re considering a prefab or modular component from brands like Abodu, Dvele, or Mighty Buildings for an ADU or addition, we can evaluate the site and coordinate the general contracting side, including foundation, utilities, and city inspection sign-off.
Common General Contractor Problems We See in National City Homes
- Unpermitted prior work. We regularly open walls in National City homes and find electrical or plumbing work done years ago without a permit. Any new remodel that touches that area triggers a city requirement to bring it up to code before inspection sign-off. The cost of remediation gets added to the project unless we flag it early.
- Pre-1960 subfloor and framing issues. Homes near the 8th Street and Highland Avenue corridors often have termite damage or sagging joists hidden under old flooring. A kitchen remodel that was quoted as “cabinets and counters” can turn into a subfloor replacement. We budget for that possibility in the initial written price.
- Undersized electrical panels. Older National City cottages frequently have 60-amp or 100-amp panels that can’t support a modern kitchen’s load. If you’re adding a cooktop, a wall oven, or a dishwasher, the panel upgrade must be in the scope. We include it as a line item when the panel can’t handle the load.
- Vague allowances on finishes. Some contractors write “cabinet allowance” or “countertop allowance” without a real number attached. Then you pick a KraftMaid cabinet line or a Cambria quartz and the price jumps. We show you the actual cost of each finish tier before you sign, so the number you approve is the number you pay.
See the difference
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After
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After
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AfterPricing for General Contractor in National City, CA
| Project | National City 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 |
| Roof Replacement | $8,000 – $20,000 |
| Window Replacement | $4,500 – $15,000 |
What moves the price in National City specifically is the age of the house. A 1940s bungalow near D Avenue will need more electrical and subfloor work than a 1990s home in the Paradise Hills-adjacent blocks. The written estimate accounts for that on the front end. Estimates are free, and there is no obligation. Call (803) 680-2547 to get a real number for your project.
We Also Serve Cities Near National City
Our National City crews also take projects in Chula Vista, Bonita, Coronado, and San Diego. If you live in one of those communities, the same written-price promise, the same background-checked crew standard, and the same 365-Day Done Right Promise apply. For more on how we serve the broader market, see our National City coverage details.
Serving National City, CA - Our Local Coverage Area
We’re based in the National City Home Remodeling 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 National City
Do I need a permit for a kitchen remodel in National City, CA?
Yes. National City requires permits for any kitchen remodel that touches electrical, plumbing, or structural walls. Moving a sink, adding circuits, opening a load-bearing wall: all require a permit from National City’s building department. We pull the permits, schedule the inspections, and pass final sign-off before we close the walls. If the project only replaces cabinets and countertops with no structural or utility changes, a permit may not be required. We confirm this during the site visit and put the permit status in writing. Call (803) 680-2547 if you want to know what applies to your specific kitchen.
How long does a typical bathroom remodel take in National City?
A standard full bathroom remodel in National City takes 3 to 6 weeks from demo to final inspection. The timeline depends on whether we discover subfloor or framing damage in an older pre-1960 home, whether the electrical panel needs an upgrade, and how quickly National City’s inspection calendar can slot us in. We sequence work around the city’s schedule, not the other way around, so the timeline we give you is realistic. A cosmetic refresh with no plumbing movement can run faster, typically 2 to 3 weeks. For an exact timeline on your bathroom, call (803) 680-2547.
What’s the price range for a home addition in National City?
A home addition in National City runs $45,000 – $130,000. The spread comes from size, foundation type, roofline complexity, and whether the addition touches existing electrical and plumbing. A single room addition on a crawlspace foundation starts near the lower end. A two-story addition with a bathroom and kitchenette runs toward the upper end. We write the full price before any work starts, including permits, engineering, and materials. Call (803) 680-2547 for a free estimate on your specific addition.
Can you help with an ADU in National City?
Yes. ADU construction in National City runs $90,000 – $220,000 depending on whether you’re building detached or converting a garage. National City has its own ADU ordinance and permit path, including setback and height rules that differ from the county’s. We handle the full general contracting scope: site work, foundation, framing, utility hookups, and final inspection. We can also coordinate with prefab manufacturers like Abodu, Cover, or Mighty Buildings if you’re considering a modular ADU. Call (803) 680-2547 to walk through what’s feasible on your lot.
How do you handle change orders during a National City remodel?
A change order only happens when you ask for something different or when we uncover a hidden condition the building department requires us to fix, like unpermitted prior electrical work. In either case, you get a written line-item price for the change before any additional work proceeds. You sign it, or we don’t do it. We don’t surprise you with a bigger final bill. The original written estimate stands unless you approve a change. Call (803) 680-2547 if you want to talk through how change orders work on your project.
Schedule Your Free Estimate in National City

If you’re planning a kitchen remodel, bathroom remodel, home addition, or ADU in National City, start with a written price. We’ll walk the site, check what’s behind the walls, and tell you exactly what the job costs before you commit to anything. Call (803) 680-2547 to schedule a free estimate. A live person answers every call, 24 hours a day, every day of the year.
Written by Isaac Pruett, Owner at Mason Remodeling, serving National City since 2004.










