







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable General Contractor Across Gardena
Hiring a General Contractor in Gardena means finding someone who understands that most of this city’s housing stock was built before 1960, that permits run through a local counter on South Normandie Avenue rather than a county office, and that a wall opened on a Rosecrans tract home can hide structural surprises behind the plaster. We’re Mason Remodeling, part of the Threshold Group family of home-service companies since 2004, and we serve Gardena with a written price before any work begins, background-checked crews, and a 365-Day Done Right Promise on every project. Call (803) 680-2547 for a free estimate.
Why Mason Remodeling Is Gardena’s Preferred General Contractor Company

Gardena homeowners call us because we show up knowing the difference between a 1920s bungalow near Vermont Avenue and a 1950s tract house off Marine. That matters when you’re planning a kitchen remodel on a slab foundation or an addition on a narrow lot. Our crews come to Gardena with the name and photo of every technician sent to your phone before the van pulls up, and each one arrives in a clean marked uniform with a photo ID badge at the door. It’s called the Threshold Standard, and it’s not an optional courtesy. It’s how we handle every single visit.
We give Gardena customers 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 at the end. If the work isn’t right within 365 days from the completion date, we return and make it right at no cost to you. That’s the promise, stated plainly.
Styles & brands we work with







Construction Company in Gardena
When Gardena homeowners need a Construction Company, what they’re really hiring is someone to manage the whole mess: permits, engineering, demo, framing, mechanical, finishes, inspections, and the calendar that ties it all together. A room addition in Gardena typically runs $45,000 to $130,000, and a garage conversion lands between $30,000 and $80,000, depending on what the existing slab and roofline will support.
Addition and structural work
Additions in Gardena almost always trigger the city’s in-house plan check at the Building & Safety counter on South Normandie Avenue. We pull those permits ourselves, walk the drawings through review, and schedule inspections when the work is actually ready. That local counter means plan-check timing is a Gardena decision, not a county backlog, and we treat it that way from day one.
Foundation and slab realities
Most of Gardena’s post-war housing sits on concrete slab foundations. When we open a wall for a reconfiguration, we check what the slab will carry before we write the final scope. A beam added over a load-bearing wall on a slab can change the footing requirements, and that’s a cost driver we build into the written allowance from the start.
Remodeling Contractor in Gardena

A Remodeling Contractor in Gardena is doing more than replacing cabinets and tile. On a 1952 tract house near Rosecrans and Western, the first thing our crew found behind the plaster was a load-bearing wall running the full width of a galley kitchen. We brought in an engineer, pulled permits at the Gardena Building & Safety counter, and wrote the beam and framing into a signed change order before hanging KraftMaid cabinets on a new subfloor over the original slab and installing a Cambria quartz island. The project landed well inside the kitchen range because the homeowner had approved the structural allowance up front.
Kitchens and baths that hold up
Kitchen remodels in Gardena run $14,000 to $45,000, and bathrooms $9,000 to $28,000. We specify cabinets from KraftMaid and Wellborn, surfaces from Cambria, Silestone, and Caesarstone, and fixtures from Kohler and Moen. These are the same product lines we use on whole-home projects, and we price them in writing before demo starts.
Room additions and garage conversions
Adding square footage in Gardena means working with the city on setbacks, parking requirements, and the same local plan check. Garage conversions start around $30,000 and can reach $80,000 depending on whether you need a new foundation edge, sewer line extension, or electrical panel upgrade. We scope those early, in writing, so the final number doesn’t drift.
Trusted Brands We Service in Gardena
We install and service products from a tight list of specification-grade manufacturers, and we keep quick access to replacement parts and finish samples for Gardena customers through our local supply network. In practice, that means when a Gardena kitchen calls for Cambria quartz or a bath for Kohler fixtures, we don’t have to special-order from three states away. For homeowners considering a prefab or panelized approach, we’re also familiar with the construction methods behind manufacturers like Abodu, Cover, and Dvele, and we can tell you honestly where a traditional stick-built remodel beats a prefab unit on a Gardena lot, and where it doesn’t.
See the difference
Before
After
Before
After
Before
AfterCommon General Contractor Problems We See in Gardena Homes
- Unpermitted previous work. Gardena’s housing stock is old enough that a prior owner may have finished a garage or added a bath without pulling permits. When the inspector finds it at rough-in, the current homeowner owns the correction. We check for signs of unpermitted work early and write the fix into the scope before rough-in, not after.
- Stucco hiding structural issues. Rosecrans and Marine Avenue tract homes wear stucco over 60- to 70-year-old framing. A cosmetic remodel can turn into structural repair once the stucco comes off, and we plan for that with written allowances rather than hoping the studs are clean.
- Slab foundation surprises. Moving a drain line or adding a kitchen island on a slab foundation means cutting concrete. If the slab is thinner than expected or the rebar sits high, the price moves. We price that risk into the written estimate so it doesn’t become an argument after demo.
- Local plan-check timing. Gardena runs its own Building & Safety counter, and treating that like a pass-through stalls the whole job. Permits sit unsubmitted, the crew waits on an inspection sign-off that was never scheduled, and the calendar slips. We schedule plan check and inspections as actual milestones, because in Gardena they are.
Pricing for General Contractor in Gardena, CA
Here are the real numbers we quote for Gardena work, and they hold across the city, whether you’re near El Camino College or west of the 110:
| Project | Typical Gardena 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 |
| Garage Conversion | $30,000 – $80,000 |
What moves a Gardena project within these ranges: the condition of the framing once the wall is open, whether the slab needs cutting, what finish level you choose for cabinets and counters, and whether the city requires structural upgrades. We deliver a written price before work begins on every project, with allowances stated in plain language. Call (803) 680-2547 to schedule your free estimate.
We Also Serve Cities Near Gardena
Mason Remodeling serves Gardena and the surrounding South Bay communities, including Lawndale, Hawthorne, Compton, and Torrance. If your project sits outside Gardena proper, call us and we’ll confirm coverage and scheduling for your street.
Serving Gardena, CA - Our Local Coverage Area
We’re based in the Gardena 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 Gardena
Yes, most kitchen and bath remodels in Gardena require permits, and the City of Gardena issues them through its own Building & Safety counter on South Normandie Avenue rather than a county office. We pull the permits, walk the plans through local review, and schedule every inspection. Call (803) 680-2547 if you’re unsure whether your project needs one.
The biggest drivers are framing condition behind the walls, whether the slab needs cutting for plumbing or an island, and the finish level you choose for cabinets and counters. A Gardena kitchen remodel runs $14,000 to $45,000, and the difference between the low and high end is usually structural work and product selection, not square footage. We write allowances for cabinets, counters, and tile into every quote so the first product selection doesn’t turn into an argument.
A kitchen remodel in Gardena typically runs 4 to 8 weeks, and a bathroom 2 to 4 weeks, but the variable is Gardena’s local plan check. Since permits run through the city’s own counter on South Normandie, we schedule plan review and inspections as actual milestones instead of treating them as pass-throughs. Call (803) 680-2547 for a realistic calendar on your specific project.
We bring it to you with a written change order before doing the extra work. On a 1952 Gardena tract house near Rosecrans and Western, we found a load-bearing wall behind the plaster, brought in an engineer, and wrote the beam and framing into a signed change order. Because the homeowner had approved a structural allowance up front, the project stayed inside the kitchen range. That’s the entire point of a written scope with clear allowances.
Yes. Garage conversions in Gardena run $30,000 to $80,000, and ADU construction $90,000 to $220,000, depending on foundation, utility, and setback requirements. We handle the local permits at the Building & Safety counter and coordinate engineering from the first site visit. Call (803) 680-2547 to walk through what your lot will support.
Written by Isaac Pruett, Owner at Mason Remodeling, serving Gardena since 2004.










