A new rear addition with a vaulted beamed ceiling and tall windows
General Contractor · Gardena, CA

General Contractor in Gardena - Written Fixed-Price Quotes, Permits Handled

Free on-site estimate and a written, line-item quote before any work begins. One contract, one crew, one accountable point of contact. Licensed, insured, permits handled.

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A second-story addition that matches the existing roofline
A wide opening with a new beam where the kitchen wall was removed
A remodeled primary suite with built-in wardrobes and a window seat
New painted shaker cabinets with an organized deep drawer
A remodeled hall bathroom with patterned floor tile and painted walls
A remodeled staircase with wood treads and a slim metal railing
A small remodeled galley kitchen with cabinets to the ceiling
A low-threshold walk-in shower with a bench and grab bar
Every visit starts with

Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled

Your dream remodel for as low as$199/month*On approved credit; ask for current terms
Get your free estimate

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.

Call (803) 680-2547

Why Mason Remodeling Is Gardena’s Preferred General Contractor Company

A single-story rear room addition with tall windows and a new patio

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.

Explore

Styles & brands we work with

Kitchen remodeling
Kitchen remodeling
Bathroom remodeling
Bathroom remodeling
Home additions & ADU
Home additions & ADU
Roofing
Roofing
Windows & doors
Windows & doors
Driveway & pavers
Driveway & pavers
Fence
Fence

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 garage converted into a guest room and home office

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.

Before & after

See the difference

Before - Recent ProjectBeforeAfter - Recent ProjectAfter
Recent Project
Before - Full RestorationBeforeAfter - Full RestorationAfter
Full Restoration
Before - Complete UpgradeBeforeAfter - Complete UpgradeAfter
Complete Upgrade

Common 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

Why Gardena Chooses Mason Remodeling

We set the standard for general contractor in Gardena.

No Change-Order Surprises

The written quote you sign is the price you pay. Anything we find mid-job gets priced and approved by you in writing before we touch it.

Licensed & Insured

Fully certified technicians who meet all local and state licensing requirements.

Upfront Pricing

No hidden fees, no surprises. You approve the price before any work begins.

Guaranteed Work

Every repair and installation is backed by our workmanship warranty and satisfaction guarantee.

How It Works in Gardena

Getting your general contractor handled is simple and fast.

1

Call or Request a Free Estimate

Tell us about your general contractor needs and we provide an upfront, transparent quote - no obligation, no hidden fees.

2

Licensed Technician Dispatched

A background-checked, certified technician arrives in Gardena - typically within 30-60 minutes, with parts stocked on the truck.

3

Problem Solved, Guaranteed

We complete the job to your full satisfaction, backed by our warranty and 100% satisfaction guarantee.

What happens when you call

  1. 1
    A real person answersNo phone trees - talk to a local general contractor pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
  3. 3
    We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
  4. 4
    You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.

What Gardena Customers Say

Trusted by homeowners across Gardena and surrounding areas.

★★★★★

"Good work on the hall bath. They found a rotted subfloor, which added cost, but showed me photos and a clear price first."

Neil P. · Verified customer
★★★★★

"Great quality tile work. The countertop template slipped by a week, but the project lead explained and kept us updated."

Susan Y. · Verified customer
★★★★★

"Basement refinish with egress window. Drywall finish is smooth and the electrician was tidy."

Kyle S. · Verified customer

Ideas for every room in the house

Built-ins, window seats, family rooms and staircases: the changes that make a whole house work better.

Read our remodeling guides
A walk-in shower with large-format tile and a built-in nicheA remodeled family room with new windows and a window seatA stone counter, tile backsplash and open shelf after a kitchen remodelA remodeled hall bathroom with subway tile and a floating vanityA finished basement family room with a media wall and wet barA walk-in pantry with wood shelving

More remodeling services in Gardena

Every project below starts the same way: a free on-site visit and a written price.

Getting started with Mason

Every project starts with a conversation and a written price. Here is how to take the first step.

A project lead measuring a kitchen with the homeowner during a free estimate

Free on-site estimate

A project lead walks the job with you, measures it and hands you a written, line-item price. No obligation.

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A remodeling crew arriving at a home with lumber and tools

Find your local team

Each location is independently owned and works to the same written standard. Enter your ZIP code to reach yours.

A worker laying floor protection and a dust barrier before work starts

Read our written promise

What we promise on every job, written down, with the terms spelled out before any work starts.

Our promise

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No obligation. We measure, price the job in writing, and the quote is yours to keep.

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Written Guarantee on Every Repair

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Free Second Visit if the Repair Fails

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