A remodeled home with a front porch on a quiet street at golden hour
Simi Valley, CA

Remodeling Company in Simi Valley - Written Fixed-Price Quotes, Permits Handled

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An open living space after a whole-home remodel
A remodeled living room with built-in shelves around the fireplace
A whole-home remodel with the living, dining and kitchen areas opened up
A remodeled family room with new windows and a window seat
A remodeled primary suite with built-in wardrobes and a window seat
A finished backyard cottage with a small covered porch
A remodeled kitchen with painted cabinets and a farmhouse sink
A remodeled primary bathroom with a soaking tub and walk-in shower
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Remodeling Company in Simi Valley, CA

Mason Remodeling handles kitchen, bath, and whole-home projects across Simi Valley with a written price delivered before any work begins. Homeowners here deal with a specific mix of 1960s and 1970s tract homes, hillside lots with drainage quirks, and HOA requirements that change from one neighborhood to the next. If you’re planning a remodel, call (803) 680-2547 to schedule a free estimate. We’ll walk the project with you, explain what Simi Valley’s building department will want to see, and put every dollar in writing before you commit to anything.

Call (803) 680-2547

Why Simi Valley Homes Are Different

A home office with a built-in desk and shelves

Most Simi Valley housing stock dates from the 1960s through the 1980s, which means three things on nearly every remodel: original galvanized plumbing that’s near the end of its service life, electrical panels sized for a much lighter appliance load, and floor plans that were built before open-concept living became standard. Homes in the older pockets near the 118, around Sycamore Drive and Cochran Street, often have slab foundations, so relocating a kitchen sink or adding a bathroom means cutting concrete rather than running lines through a crawlspace.

Simi Valley’s summer heat and Santa Ana winds shape exterior and window decisions. Stucco is the dominant exterior, and it holds up well to the dry heat, but old single-pane windows in those 70s-era homes let conditioned air escape fast. Hillside lots in areas like Wood Ranch and Big Sky face erosion and drainage rules that flat neighborhoods never deal with. Some HOAs, especially in Wood Ranch and the newer developments off Madera Road, require design review before you can change exterior paint, windows, or rooflines. We account for that approval timeline in the schedule so it doesn’t surprise you mid-project.

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

Our Main Simi Valley Services

Three services carry most of the calls we get from Simi Valley homeowners. Each one has its own page with pricing, timeline, and what to expect.

General Contractor in Simi Valley

A general contractor holds the project together: permits, scheduling, subcontractors, inspections, and the daily walkthrough that catches mistakes before they’re buried behind drywall. In Simi Valley, that often means coordinating with the city’s building department on hillside foundation or retaining wall questions, and pulling the right trade specialists for electrical and plumbing work in older homes. If you’re planning an addition, a structural change, or a project with more than two trades involved, start with our General Contractor in Simi Valley page. It covers what a GC actually does and what to ask before you sign.

General Contractor in Simi Valley

Bathroom Remodeling in Simi Valley

Simi Valley bathrooms from the 70s and 80s are compact by today’s standards, so a good remodel is usually about working smarter within the original footprint: niche storage, curbless showers, and vanities sized for real daily use rather than photo shoots. Water damage hiding behind old tile and failing shower pans is common in this housing era, and we scope for it during the estimate so it doesn’t become a surprise change order. Our Bathroom Remodeling in Simi Valley page walks through the cost, typical timeline, and what a tile-ready shower really requires.

Bathroom Remodeling in Simi Valley

Home Remodeling in Simi Valley

Whole-home remodels in Simi Valley usually happen because the floor plan fights the way a family actually lives now. Kitchens cut off from the living space, a bedroom that should be a home office, a garage that needs to become a guest suite. These projects touch framing, electrical, insulation, and often exterior work, and they need a single point of accountability across all of it. Visit our Home Remodeling in Simi Valley page for the full scope of what a whole-home project includes and where the budget typically goes.

Home Remodeling in Simi Valley
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What happens when you call

  1. 1
    A real person answersNo phone trees - you reach a local pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched.
  3. 3
    A background-checked tech heads outLicensed & insured, dispatched right away.
  4. 4
    You approve before work beginsNothing starts until you say go.

Brands We Service in Simi Valley

Simi Valley homeowners who choose prefab or panelized construction often ask about Abodu and Cover for ADUs, and Dvele for high-efficiency panelized homes. Our crews service these systems alongside traditional stick-framed work. Parts and materials are stocked through our regional suppliers, and standard components typically arrive within a week. Learn more on our brands page.

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

Pricing for Remodeling Company in Simi Valley, CA

Service Typical range in Simi Valley
Kitchen Remodel $14,000 – $45,000
Bathroom Remodel $9,000 – $28,000
Small Bathroom Remodel $5,000 – $12,000
Walk-In Shower Installation $4,500 – $12,000
Countertop Installation $2,000 – $6,500
Window Replacement $4,500 – $15,000
Home Addition $45,000 – $130,000
ADU Construction $90,000 – $220,000
Garage Conversion $30,000 – $80,000
Roof Replacement $8,000 – $20,000

Simi Valley pricing gets pushed upward by hillside access, older slab foundations that require concrete cutting, and HOA-required design reviews that add time to the front end. Our written price is delivered before any work starts, on every project, every time. That number covers the scope we agreed on, and it doesn’t grow on the final bill unless you change the scope yourself.

Neighborhoods We Serve in Simi Valley

A remodeled staircase with wood treads and a slim metal railing

We work throughout Simi Valley, from the older neighborhoods near the 118 to the newer developments along the west side.

  • Wood Ranch
  • Big Sky
  • Texas Tract
  • Central Simi Valley
  • Indian Hills

We schedule most estimates within a few business days across the whole Simi Valley area, with the shortest lead times in the central and eastern neighborhoods.

Service Area – Cities Near Simi Valley

Mason Remodeling also serves homeowners in Moorpark, CA, Oak Park, CA, Thousand Oaks, CA, and Westlake Village, CA. If you’re in one of those cities and planning a remodel, the same written-price standard applies. Dispatch and scheduling are coordinated from our Los Angeles office, with crews serving Simi Valley locally.

Serving Simi Valley, CA - Our Local Coverage Area

We’re based in the Simi Valley 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 Remodeling Company in Simi Valley

A finished basement family room with a media wall and wet bar

Ready to get started? Free estimates · Free in-home estimates response in Simi Valley
Call (803) 680-2547

What happens when you call

  1. 1
    A real person answersNo phone trees - talk to a local construction 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 Simi Valley Customers Say

★★★★★ 4.8 from 8+ reviews

"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.

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

- Susan Y.

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

- Kyle S.

How It Works in Simi Valley

Getting your construction handled is simple and fast.

1

Call or Request a Free Estimate

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

2

Licensed Technician Dispatched

A background-checked, certified technician arrives in Simi Valley - 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.

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 dining nook with a built-in banquetteA remodeled laundry and mudroom with a bench, cubbies and painted cabinetsA built-in window seat in a bay windowA single-story rear room addition with tall windows and a new patioAn open kitchen and dining area after a remodelA freestanding soaking tub in a remodeled primary bathroom

More remodeling services in Simi Valley

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

Current Offers

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Free On-Site Estimate & Written Quote

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Written Price Before Any Work Starts

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Written Guarantee on Every Repair

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