Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable General Contractor Across Cotati
If you’re planning a kitchen remodel, bathroom update, room addition, or ADU in Cotati, you need a general contractor who knows this city’s housing stock, permit process, and real construction costs. Most Cotati jobs run $14,000 to $45,000 for a kitchen, $9,000 to $28,000 for a bathroom, and $45,000 to $130,000 for a home addition, depending on what’s behind the walls once work begins. Call Mason Remodeling at (803) 680-2547 for a written price before any tool leaves the truck.
Cotati’s mix of older downtown blocks and 1970s – 80s infill subdivisions means no two houses here are alike under the surface. That’s exactly why we pull permits, open the floor, and check what’s actually there before we hand you a number. Our crews serve Cotati locally, with scheduling coordinated from the brand’s San Francisco Bay Area office, and a live person answers every call, 24 hours a day, 7 days a week.
Why Mason Remodeling Is Cotati’s Preferred General Contractor Company
Cotati homeowners keep hiring us because we put everything in writing before work starts. Not a verbal estimate. Not a “rough range.” A written price with scope, allowances, and change order terms. That matters in a city where houses on Henry Street, Gravenstein Highway, and the older blocks near Cotati’s downtown core hide different foundation types from one property to the next.
The Threshold Standard applies to every crew member who shows up at your Cotati door: background-checked, identity-verified, in a clean marked uniform, with a photo ID badge. You get the technician’s name and photo before the visit. Isaac Pruett leads our team and keeps the same standard on every job, from a small bathroom vanity replacement to a full ADU build near La Plaza Park.
Our 365-Day Done Right Promise covers every completed Cotati project. If work isn’t right within a year of completion, we make it right at no cost to you. The guarantee’s terms are written plainly: what’s covered, what’s excluded, and for how long. No fine print surprises.
Styles & brands we work with
Hire a General Contractor in Cotati
Hire a General Contractor in Cotati means bringing on someone to coordinate the whole job: permits, demolition, structural work, electrical, plumbing, tile, cabinetry, finishes, and final inspection sign-off. Cotati homeowners typically bring us in when a kitchen or bathroom is beyond cosmetic updates, when a room addition changes the roofline or footprint, or when an ADU needs plans, inspections, and a foundation from scratch. Expect to pay $14,000 to $45,000 for a kitchen remodel and $9,000 to $28,000 for a bathroom remodel in Cotati.
Permit, Subfloor, and Load-Bearing Checks
Before we price anything, we determine what your Cotati house actually has under the tile and behind the drywall. That means a permit pull and, on older homes, opening a floor section. We’d rather find a rotted subfloor or an undersized beam before the cabinets arrive than after.
Written Scope, Allowances, and Change Orders
Every Cotati project gets a written price before work begins. If something changes once we open a wall, you see the change order in writing, with the dollar figure, before we proceed. No verbal handshakes on money.
General Contractor Services in Cotati
General Contractor Services in Cotati cover the work where structural, plumbing, electrical, and finish trades all have to sequence correctly. A kitchen remodel on a 1970s Cotati single-story often involves moving a load-bearing wall, running a new dedicated circuit for the range, and relocating a plumbing vent. Those aren’t line items you guess at. They’re line items we price after we see the house.
Kitchen, Bath, and Whole-Home Remodels
We run complete kitchen and bathroom remodels, plus whole-home remodels, pulling permits and scheduling inspections for each trade. On Cotati homes with pier-and-post foundations, we check level and moisture before setting cabinets. On slab homes, we verify drain locations before the carpenter cuts anything.
Room Additions, ADUs, and Garage Conversions
Room additions, ADU construction, and garage conversions bring their own Cotati-specific questions: setbacks on older lots, foundation type, and whether the existing service panel has capacity. We handle plans, permits, inspections, and construction through final sign-off.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Cotati
We stock and install specification-grade products Cotati homeowners can actually go see and touch before committing. Cabinetry from KraftMaid and Wellborn. Countertops from Cambria, Silestone, and Caesarstone. Fixtures from Kohler and Moen. For Cotati ADU and modular builds, we’ve worked around the details of Brand names like Abodu, Cover, and Dvele, and we know how their panelized systems interact with Sonoma County permit requirements. When you pick a material early, we hold your cost line and keep lead times out of your finish date.
See the difference
Before
After
Before
After
Before
AfterCommon General Contractor Problems We See in Cotati Homes
- Pier-and-post foundations with uneven settlement. Older downtown Cotati homes often sit on pier-and-post systems that have shifted over decades. Before tile goes down, we check level and fix what needs fixing.
- Wet subfloors under old kitchens and baths. On 1970s – 80s Cotati infill homes, we regularly find moisture staining around old supply lines and wax rings. The fix has to happen before new flooring goes in.
- Load-bearing walls where open-concept plans want them gone. In the Henry Street area, we’ve removed load-bearing walls that carried roof loads from a truss system. The beam installation and permit inspection are non-negotiable.
- Undersized electrical panels. Cotati homes from the 70s and 80s often don’t have capacity for a modern induction range, tankless water heater, or EV charger. We plan the panel upgrade into the scope before it becomes a mid-job surprise.
Pricing for General Contractor in Cotati, CA
| Cotati Project | Price Range |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Small Kitchen Remodel | $9,000 – $20,000 |
| Cabinet Installation | $4,000 – $13,000 |
| Countertop Installation | $2,000 – $6,500 |
| Bathroom Remodel | $9,000 – $28,000 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
What moves a Cotati job toward the top of these ranges? Structural work, foundation repairs, panel upgrades, and high-end materials. What moves it toward the bottom? Smaller footprints, fewer wall changes, and mid-range finishes. We give you the written line-item breakdown before you commit, and we don’t change the number unless you approve a change order. Call (803) 680-2547 for a free estimate.
We Also Serve Cities Near Cotati
Mason Remodeling runs crews through Cotati and the surrounding area, including Rohnert Park, Petaluma, Santa Rosa, and Sebastopol. If you’re a few exits away on 101 or out toward the west county, the same written price and General Contractor team covers your job. Scheduling stays local to your city.
Serving Cotati, CA - Our Local Coverage Area
We’re based in the Cotati 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 Cotati
Yes, in most cases. Any Cotati remodel that touches plumbing, electrical, structural walls, or changes the building footprint requires a permit through the City of Cotati and Sonoma County. We pull the permits, schedule the inspections, and make sure every trade signs off before we call the job done. Call (803) 680-2547 for a free estimate and a clear permit checklist for your project.
Hidden conditions: rotted subfloor, undersized beams, moved plumbing, outdated electrical panels, and foundation issues that were never visible before demolition. We minimize those surprises by opening the floor and pulling the permit before we finalize the price. Any change after that gets a written change order with a dollar amount before we touch it. Call (803) 680-2547 to talk through your project.
We write everything down. Scope of work, allowances, payment draws, and change orders are all in writing before work begins. The 365-Day Done Right Promise covers workmanship for a full year after completion. If something isn’t right, we return at no charge. Call (803) 680-2547 for a written price before your project starts.
A Cotati kitchen remodel typically runs 6 to 10 weeks from demo to final inspection, and a bathroom runs 3 to 6 weeks, depending on structural work and material lead times. We sequence trades so your house isn’t torn up longer than necessary, and we give you a calendar in writing before we start.
Yes. We coordinate plans, engineering, permits, foundations, framing, and all finishes for Cotati ADUs and room additions. ADU construction in Cotati generally runs $90,000 to $220,000, and home additions run $45,000 to $130,000, depending on size and site conditions. Call (803) 680-2547 and we’ll give you a written breakdown.
Written by Isaac Pruett, Owner at Mason Remodeling, serving Cotati with written pricing and verified crews since 2004.
