







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable General Contractor Across Del Aire
If you’re planning a kitchen remodel, room addition, or garage conversion in Del Aire, expect to pay between $14,000 and $45,000 for a typical kitchen project, $45,000 to $130,000 for a home addition, and $30,000 to $80,000 for a garage conversion. Those are real numbers from the bids we write and the jobs we build in this unincorporated pocket of Los Angeles County. Mason Remodeling has served Del Aire homeowners since 2004, and every project starts with a written price before any tool is unpacked. Call (803) 680-2547 for a free estimate, and a live person answers – 24 hours a day, every day.
Why Mason Remodeling Is Del Aire’s Preferred General Contractor

Del Aire homeowners don’t have a city hall down the block. They have LA County Building & Safety, which means permits, plan checks, and inspections run on the county’s calendar, not the City of LA’s. That single fact trips up more contractors than anything else we see here. Our team knows the county’s South Bay district office routines cold, and we’ve pulled permits for projects on Isis Avenue, Grevillea Avenue, and throughout the Del Aire 90304 zip code. Isaac Pruett, who leads our crews, reviews every scope line by line before it reaches your door, so the written price you receive already accounts for county fees, inspection holds, and the realities of Del Aire’s 1950s-era housing stock.
We’re not a broker that hands your job to a stranger. Every technician is background-checked and identity-verified under the Threshold Standard, and you’ll receive the name and photo of your crew lead before arrival. A photo ID badge is shown at the door. We write the guarantee terms on every project – 365 days from the completion date, and if the work isn’t right, we fix it at no cost. That’s how we’ve built our reputation in Del Aire, one scoped estimate at a time.
Styles & brands we work with







Licensed General Contractor in Del Aire
General Contractor work in Del Aire means coordinating permits, demolition, structural framing, rough-in electrical and plumbing, drywall, finishes, and the final county inspection. The moment you move a wall, change a drain line, or add square footage, the LA County permit path applies, and that changes what your bid should contain. A licensed contractor files the plans, schedules the inspections, and is accountable when a county inspector flags something. For Del Aire homeowners, this starts with a written scope of work, not a number scribbled on a business card.
What a Written Scope Looks Like Here
A Del Aire bid should name the finishes, the fixtures, the exact scope of the structural work, and the line items for county permits and inspection fees. The moment allowances are left vague – “tile: $X per square foot, you pick it later” – you’re set up for change orders after demo. We write the full price before work starts, and that practice is not optional with us. Every project, every time.
Who Comes to Your Door
The crew lead assigned to your Del Aire job is verified by name and photo before the first visit. Uniformed, background-checked, and carrying a photo ID badge at the door, the Threshold Standard applies to every technician on site. You’ll know who is coming, and you’ll meet that exact person before work begins.
Residential General Contractor in Del Aire

Residential General Contractor in Del Aire work covers the projects homeowners actually live through: kitchens opened to dining rooms, bathrooms gutted to the studs, bedrooms converted from garages, and second-story additions that require county plan check well before demo day. Most Del Aire homes were built in the 1940s and 1950s, and the framing, wiring, and drain lines rarely match what’s on a floor plan. That’s the work we do daily. A garage conversion in Del Aire runs $30,000 to $80,000 depending on foundation work, bathroom addition, and whether the county requires updated electrical service.
Kitchen and Bath Projects at Del Aire Scale
A full kitchen remodel in Del Aire typically lands between $14,000 and $45,000, with small kitchens running $9,000 to $20,000. Bathrooms run $9,000 to $28,000 for a full gut, and a walk-in shower installation sits between $4,500 and $12,000. These ranges reflect Del Aire’s older framing, which means more time correcting out-of-level floors and walls that have shifted over 70 years.
Additions and ADUs in a County-Run Community
Home additions in Del Aire run $45,000 to $130,000, and an ADU runs $90,000 to $220,000 when built from the ground up. Because Del Aire is unincorporated, the county plan-check and inspection windows set your calendar, not a city inspector’s. We schedule around those windows and write the timeline into the contract, so you’re not left wondering when the next inspection is coming.
Trusted Brands We Service in Del Aire
We specify and install professional-grade products from KraftMaid, Cambria, Kohler, Moen, and GAF on Del Aire projects. When a homeowner wants a Cambria countertop and a Kohler touchless faucet in a kitchen off Isis Avenue, we price both in the written estimate and order directly from the manufacturers we’ve worked with for years. No distribution middlemen, no substitution games. For prefabricated ADU options in Del Aire, we’ve reviewed systems from companies like Abodu and Cover, and we’ll tell you honestly when a factory-built ADU makes more sense for your lot than a stick-built one.
See the difference
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AfterCommon General Contractor Problems We See in Del Aire Homes
- Bids written from photos instead of a scope. We’ve seen Del Aire homeowners accept a photo-based estimate, only to have the contractor discover knob-and-tube wiring or a shifted foundation after demo. On 1950s postwar stock, the wall you open rarely matches the drawing. We price jobs from a written scope after a site visit, never from a square-foot number.
- Skipping the LA County permit because the work is “inside the house.” A bathroom or kitchen remodel with any plumbing or electrical rough-in still requires a county permit and inspection in Del Aire. No inspection sign-off means no record of the rough-in when it’s time to sell, and that can stall a closing. We pull permits and pass inspections on every job that requires them.
- Vague allowances that move the budget after demo. When tile, countertops, and fixtures are left as open allowances, the low bid wins and the change orders land after the wall is open. We specify finishes and fixtures in the written price before work starts, so your number stays your number.
- Dry rot and drain leaks found after the wall is open. Del Aire’s older homes have cast-iron drain lines and subfloors that have been wet for decades. We tore into a 1950s ranch house off Isis Avenue where the subfloor under the sink had dry rot from a slow drain leak we found during rough-in. We scoped the repair in writing, priced the subfloor and a new Moen rough-in as a change order, and still hit the punch list before the county inspection sign-off.
Pricing for General Contractor in Del Aire, CA
Every bid we write in Del Aire is a line-item document, not a round number. The table below reflects what we’ve actually priced and built in this community over the past several years. Permits, county fees, and the corrections that come with 1950s framing are already accounted for in these ranges.
| Project Type | Typical Del Aire 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 |
The main cost drivers in Del Aire are the age of your home, the condition of the subfloor and drain lines, and whether the county requires a service panel upgrade. We quote the full price before work begins, and a change order only happens if you change the scope or we uncover something that requires it. Call (803) 680-2547 for a free, written estimate.
We Also Serve Cities Near Del Aire
Mason Remodeling serves Del Aire and the surrounding South Bay and greater Los Angeles area, including Los Angeles, San Diego, San Jose, and San Francisco. If your Del Aire project extends beyond the neighborhood or you’re coordinating work on a property elsewhere, we can scope it with the same written-price discipline.
Serving Del Aire, CA - Our Local Coverage Area
We’re based in the Del Aire 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 Del Aire
LA County Building & Safety issues the permit, not the City of LA. Del Aire is unincorporated county land wrapped by Hawthorne and El Segundo, so the plan-check line, the inspection calendar, and the fee schedule all run through the county’s South Bay district office. We file, schedule, and pass these inspections as part of every Del Aire project. Call (803) 680-2547 for an exact quote on your scope.
The three big drivers in Del Aire are the condition of your subfloor, the age of your wiring, and whether you’re relocating a drain line. 1950s homes off Isis Avenue and Grevillea Avenue often have dry rot under the sink, cast-iron drain pipes that need replacing, and electrical panels that won’t pass a county inspection without an upgrade. A kitchen remodel here runs $14,000 to $45,000, and a small kitchen runs $9,000 to $20,000. Get a written line-item bid before demo, and the number won’t move when the wall opens. Call (803) 680-2547 for a free estimate.
No. On Del Aire’s older postwar stock, the wall you open rarely matches a drawing, and a photo-based bid will inevitably change once the framing, subfloor, or drain lines are exposed. We visit the home, write the scope, and deliver a written price before work starts. That’s the only way to protect yourself from change orders after demo. Call (803) 680-2547 to schedule a site visit.
A kitchen remodel in Del Aire typically runs 6 to 10 weeks from demo to final county inspection, and a bathroom runs 3 to 6 weeks. The county inspection calendar drives part of that timeline, and unincorporated Del Aire projects often wait a little longer for plan check than neighboring cities. We write the timeline into the contract so you’re not guessing. Call (803) 680-2547 for a project-specific schedule.
Yes, if the work touches plumbing, electrical, or structural framing, LA County requires a permit and inspection in Del Aire, even if you’re not moving walls. Swapping a vanity without touching the drain line typically doesn’t require one, but replacing a shower valve or relocating an outlet does. We’ll tell you exactly what your scope triggers before we write the bid. Call (803) 680-2547 for a free estimate.
Written by Isaac Pruett, Owner at Mason Remodeling, serving Del Aire, CA.










