Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable General Contractor Across Sunnyvale
Most Sunnyvale homes were built between 1950 and 1975, and the walls in those houses hide things you won’t find in a newer Cupertino build: original 60-amp electrical panels, galvanized steel plumbing, and framing that predates modern code. A general contractor who knows Sunnyvale plans for what’s behind the drywall before quoting the job, not after demo starts. We’re Mason Remodeling, and we’ve been opening walls in this city long enough to know which Lakewood Village ranches still have their original supply lines and which Birdland homes have already been re-wired. Call (803) 680-2547 for a written price before any work begins.
Why Mason Remodeling Is Sunnyvale’s Preferred General Contractor Company
Homeowners in Sunnyvale call us because we lead with the two things that matter most: who is coming to your door and what the job will cost. Every crew member is background-checked, identity-verified, and introduced to you by name and photo before the visit, then shows a photo ID badge at the door. That’s our Threshold Standard, and it’s not optional on any job we run here. Isaac Pruett, who leads our team, insists on it for every project, from a small bathroom update near Washington Park to a full home addition off Fremont Avenue.
We deliver a written price before any work starts on every single project. No verbal estimate that grows, no allowances that drift upward without a written basis. Sunnyvale homeowners appreciate that predictability, especially when a kitchen demo reveals the galvanized pipes we told them to expect. And our 365-Day Done Right Promise backs the completed work: if something isn’t right within a year of completion, we make it right at no cost to you.
Styles & brands we work with
Residential General Contractor in Sunnyvale
Residential General Contractor work in Sunnyvale means managing the entire construction process from first permit to final inspection, and it typically runs between $14,000 and $45,000 for a kitchen remodel or $9,000 to $28,000 for a bathroom, while a home addition lands between $45,000 and $130,000 depending on scope and site conditions. The job involves demolition, rough-in, drywall, finish work, and the inspections in between. When a Sunnyvale homeowner notices a sagging floor in a 1960s ranch near Serra Park, or wants to open the kitchen toward the backyard on a Ponderosa Park lot, that’s the moment to call a general contractor rather than three separate trades.
Scope and Permits
We pull permits on every project that requires them, and in Sunnyvale that’s most structural, electrical, and plumbing work. The city requires a permit for kitchen and bath remodels, additions, and garage conversions, and our team handles that paperwork before the first tool is unpacked. When rough-in passes its framing and electrical inspection sign-off, we keep moving without stalling the job.
What We Coordinate
We bring the schedule, the trade partners, and the material procurement under one roof so you aren’t chasing an electrician mid-project. Our project includes the written change-order process if old wiring or plumbing surfaces, so nothing gets added to your bill without your signature. The goal is simple: the job ends with a city-stamped final inspection and a clean, durable result.
Hire a General Contractor in Sunnyvale
Hire a General Contractor in Sunnyvale when the job touches structure, utilities, or multiple trades and you want one accountable team instead of a rotating cast of subs. The work generally costs $45,000 to $130,000 for a full home addition, $90,000 to $220,000 for an ADU in a sunny Sunnyvale backyard, and $30,000 to $80,000 for a garage conversion. We write a fixed price for the full scope, then manage the rough phases, the inspections, and the finish work through to the final walkthrough.
How We Price the Job
Before we quote anything, we open enough of the picture to know what we’re dealing with: panel capacity, pipe material, joist condition, and the city’s inspection expectations. That’s why our Sunnyvale quotes differ from a photo-based estimate from someone who never visited the house. We account for the city’s older housing stock up front, then put the number in writing before any work begins.
Who Shows Up at Your Door
You’ll receive the name and photo of every technician before the visit, and they’ll show you a photo ID badge when they arrive in a clean marked uniform. No strangers, no guessing. That’s the Threshold Standard, and it’s how every project in Sunnyvale runs, from a bathroom remodel near Ortega Park to a whole-home job off Wolfe Road.
Trusted Brands We Service in Sunnyvale
We work with specification-grade material partners including KraftMaid and Wellborn for cabinetry, and Cambria, Silestone, and Caesarstone for countertops, so Sunnyvale homeowners get access to professional-grade products without chasing a showroom on their own. A Dvele or Abodu prefab panel arriving in Sunnyvale still needs a general contractor to handle the foundation, utility connections, and interior finish. We stock structural Sakrete mixes for local slab and anchor work. Whether you’re choosing a Kohler tub for a Birdland bath or a Techo-Bloc paver for the walk-up, we coordinate delivery and storage so materials sit on site when the crew is ready for them, not a month early.
Common General Contractor Problems We See in Sunnyvale Homes
- Original 60-amp electrical service. Houses built between 1950 and 1975 in Sunnyvale frequently still run on a 60-amp panel and single-wire circuits. The city will not sign off on a kitchen or addition until that panel is upgraded, which is a cost and a timetable factor we build into the written price.
- Galvanized steel supply plumbing. These pipes corrode from the inside out, and when a wall comes open we often find restriction, pinhole leaks, or both. Re-piping a kitchen or bath run is not a luxury here; it’s the difference between passing inspection and opening the wall again later.
- Swollen subfloors from slow valve leaks. A small leak under a bathroom sink or behind a shower valve can saturate the subfloor for years before anyone notices. By the time we demo, the joists may need sistering and the subfloor may need replacement before finish flooring can go down.
- Photo-only estimates that miss all of the above. A quote built from a few phone photos cannot see panel capacity, pipe material, or joist condition. When those surprises surface after demo in Sunnyvale, they land as change orders, and the homeowner is stuck holding an inaccurate number.
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AfterPricing for General Contractor in Sunnyvale, CA
Here are the honest line-item ranges for the most common general contractor projects we quote in Sunnyvale:
| Project | Price Range |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Small Kitchen Remodel | $9,000 – $20,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
Sunnyvale’s older housing stock is the biggest cost driver: a 1960s home that still has its original panel and galvanized pipes will land on the higher end of these ranges when the work requires upgrades to pass inspection. A newer or already-updated home lands lower. Call (803) 680-2547 for a free written estimate with exact numbers for your project.
We Also Serve Cities Near Sunnyvale
From our San Francisco Bay Area office, we run General Contractor work throughout Sunnyvale and dispatch crews locally. We also serve homeowners in Mountain View, Santa Clara, Cupertino, and Los Altos who want the same written pricing and verified-crew standard.
Serving Sunnyvale, CA - Our Local Coverage Area
We’re based in the Sunnyvale 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 Sunnyvale
Yes, you need a permit for a kitchen remodel in Sunnyvale, and the city requires permits for most structural, electrical, plumbing, and mechanical work. A general contractor who pulls the proper permits and passes the city’s inspections protects the value of your home and keeps the work legal. Call (803) 680-2547 and we’ll confirm which permits apply to your specific project.
Sunnyvale remodels get change orders because houses built between 1950 and 1975 routinely hide original 60-amp electrical panels, galvanized plumbing, or water-damaged subfloors behind the walls, and a photo-based quote never sees them. The fix rarely lands on the original number unless the contractor pre-scopes for it. We write a fixed, line-item price that accounts for what we can verify, then note what could change and why, in writing, before work starts.
A kitchen remodel in Sunnyvale typically takes 6 to 10 weeks from demo to final inspection, a bathroom 4 to 6 weeks, and a home addition 4 to 8 months depending on scope and the city’s inspection schedule. Sunnyvale’s building department processes permits on its own calendar, and older homes often require an electrical panel upgrade that adds to the schedule. We provide a written project calendar at the start so you know what to expect.
The biggest price drivers in Sunnyvale are the home’s age, the condition of the electrical panel and plumbing, the square footage, and the material tier you choose (KraftMaid vs. custom cabinetry, Cambria vs. standard laminate). A small bath that needs re-piping and a panel upgrade will outprice a larger bath in a newer home. We show you these drivers in a line-item quote so you can adjust scope before we start, not after.
No, we won’t start tomorrow on a remodel, because a properly permitted and accurately priced Sunnyvale project requires site verification, material ordering, and the city’s permit process before any demolition begins. Anyone who starts a remodel the day after you call is skipping a step you’ll pay for later. We move as fast as the process honestly allows and keep you informed at every step. Call (803) 680-2547 to schedule your free estimate and we’ll give you a written timeline from day one.
Get a Written Price from a Sunnyvale General Contractor
You deserve to know exactly what your remodel will cost before the first wall comes down. You deserve to know who is walking through your door, by name and by photo, before they ring the bell. And you deserve a contractor who stands behind the work for a full year after it’s done. That is what Mason Remodeling delivers in Sunnyvale, on every project, no exceptions. Call (803) 680-2547 now to schedule your free written estimate, and we’ll walk your home with you, answer your questions in plain language, and hand you a number before any work begins.
Written by Isaac Pruett, Owner at Mason Remodeling, serving Sunnyvale, CA.
