General Contractor in Windsor - Licensed & Insured, Written Fixed-Price Quotes

Fast, Reliable General Contractor Across Windsor

If you’re planning Kitchen Remodeling in Windsor, a bathroom update, or a whole-home project, you’re probably wondering what it’ll actually cost and whether the contractor will show up when they say they will. A mid-size kitchen remodel in Windsor typically runs $14,000 – $45,000 depending on cabinet line, countertop material, and whether you’re moving plumbing. A bathroom remodel lands between $9,000 and $28,000. We put every number in writing before the first tool comes off the truck, and the price you sign is the price you pay. Call (936) 259-2607 for a free estimate.

Call (936) 259-2607

Our crews work throughout Windsor, from the subdivisions off Old Redwood Highway to the newer streets near Foothill Regional Park. Scheduling comes from our San Francisco Bay Area office, but the people doing the work are local, uniformed, and background-checked. You’ll know exactly who’s walking into your home.

Key Takeaways

• Chapter 7A compliance is not optional in Windsor. Virtually every permitted exterior project must meet California’s ignition-resistant construction standards. We spec it from day one.
• Written pricing before work starts. The number on your quote is the number on your invoice. Always.
• 365-Day Done Right Promise. If the work fails inside a year, we come back and fix it at no charge. It’s in writing on every project.
• A live person answers the phone 24/7. No voicemail maze. Call (936) 259-2607 and you’ll get a real human.

Why Penhallow Remodeling Is Windsor’s Preferred General Contractor Company

Windsor homeowners have a specific set of problems, and we’ve spent enough time inside these tract houses to know them by heart. Most of Windsor’s housing stock was built in the 1990s and 2000s after incorporation in 1992, which means whole neighborhoods are hitting the same renovation milestones at the same time. Original composite roofing is failing. Windows are losing their seals. OSB sheathing behind stucco is showing its age. When a Windsor customer calls about a kitchen remodel, we already know the rough plumbing layout, the likely subfloor condition, and whether the original framing used 16-inch or 24-inch centers. That kind of familiarity cuts days off planning and keeps the price honest.

Trevor Nash runs our Windsor projects the same way he’s run every job since the Kingswell standard was established in 2004: say the price before the work, show up in the window we gave, leave the place cleaner than we found it. Windsor customers tell us that’s the difference they notice first. We’re not chasing volume. We’re building a reputation in one town, street by street.

Reviews from Windsor homeowners consistently mention two things: we answer the phone, and we do what the contract says. Call (936) 259-2607 and you’ll get a live person. Every time.

Hire a General Contractor in Windsor

When you hire a General Contractor in Windsor, you’re really hiring someone to manage three things: the permit process, the sequence of trades, and the budget. That first piece matters more here than almost anywhere else in Sonoma County. Windsor sits inside a designated High Fire Hazard Severity Zone, and that changes what gets approved and what gets flagged. A contractor who pulls permits in Petaluma or Cotati and then tries to run the same playbook in Windsor will stall at the first inspection. We don’t.

Permit and Code Management

Exterior work, including re-roofs, siding, decking, and window swaps, has to meet California Chapter 7A ignition-resistant construction standards. That means Class A roofing assemblies, ember-resistant vents, and ignition-resistant exterior materials. We handle the permit set, the inspections, and the paperwork so you’re not the one trying to decode Title 24.

Interior Remodel Scope and Sequencing

Interior work, like a kitchen or bath remodel, follows a different path but the same discipline. We scope the demo, verify what’s behind the walls, and lock the schedule before the first cabinet gets ordered. A home addition in Windsor runs $45,000 – $130,000. A garage conversion runs $30,000 – $80,000. We’ll tell you exactly what drives the number up or down, and then we’ll put it in writing. For more on how we think, see our General Contractor approach.

General Contractor Services in Windsor

Our General Contractor Services in Windsor cover the full range of residential remodeling, from single-room updates to whole-home reconfigurations. The work you need depends on the age of your house and what’s already been done to it. If you’re in one of the 1990s tract subdivisions, you may be looking at the first major remodel since original construction. If you’re in one of the few custom homes on the edges of town, the scope usually involves updating outdated systems and finishes. Either way, we start with a written scope and a written price.

Kitchen and Bath Remodeling

These are the projects we do most in Windsor. Expect a small kitchen remodel to land between $9,000 and $20,000, a full kitchen between $14,000 and $45,000, and a bathroom anywhere from $9,000 up to $28,000. Cabinet lines like KraftMaid and Wellborn, countertops from Cambria and Silestone, and fixtures from Kohler and Moen all carry their own warranties alongside ours.

Whole Home and Addition Work

Whole-home remodels and room additions demand more from the permit side, especially when the exterior shell is touched. A home addition in Windsor runs $45,000 to $130,000, and if it involves any exterior envelope change, Chapter 7A applies. We’ve also worked on projects where homeowners considered prefab options from companies like Abodu and Dvele. Our job is to make sure the site work, foundation, and tie-ins are done right so the structure performs.

This page is specifically for folks looking for General Contractor in Windsor, not the broader Sonoma County market. Different code overlay, different housing stock, different player.

Trusted Brands We Service in Windsor

We install and service material from brands that stand behind their products, because our 365-Day Done Right Promise is stronger when the materials carry their own warranty too. For Windsor kitchens we use KraftMaid and Wellborn cabinetry, Cambria and Silestone quartz, and Kohler or Moen fixtures. Exterior work gets James Hardie siding and Therma-Tru doors when ignition-resistant product is required. For homeowners considering modern prefab construction, we’re familiar working alongside companies like Cover and Mighty Buildings on site prep and finishes. We’ll give you the straight answer on which product fits your budget and your permit requirements.

Common General Contractor Problems We See in Windsor Homes

• Cheap exterior bids that ignore Chapter 7A. A roofer prices standard three-tab with plastic ridge vents and never mentions ember-resistant vents or Class A roofing. The permit gets flagged, the job stalls, and the price climbs. It happens constantly to Windsor homeowners who don’t know what to ask for.
• Same-age housing failing in sync. Windsor’s tract neighborhoods were built in the 1990s and early 2000s, so original roofing, windows, and OSB sheathing are aging out together. That’s why you’ll see three re-roofs on the same street in one season. It also means contractors get stretched thin the same way, which is why we sequence inspection sign-offs carefully.
• Clay soil movement near Windsor Creek. The lower-lying subdivisions have expansive clay soils that shift with winter rains. That movement shows up as cracked tile, sticking doors, and small foundation cracks. We account for it in any remodel scope that touches flooring or structural walls.
• Verbal change orders on mid-project discoveries. Older tract homes hide surprises: compromised subfloor under original tile, outdated wiring, moisture behind the shower surround. A contractor who didn’t verify what’s behind the wall will hit you with a verbal number mid-demo. We pre-inspect where possible and put any change in writing before we proceed.

Pricing for General Contractor in Windsor, CA

We Also Serve Cities Near Windsor

Our crews work primarily in Windsor but we take jobs in the surrounding towns when the schedule allows. That includes Healdsburg, Santa Rosa, Sebastopol, and Calistoga. If you’re just over the line in any of those communities, the same Windsor standard applies: written price up front, written guarantee, and a live person on the phone. Call (936) 259-2607 and we’ll tell you if we can get to your job.

FAQs About General Contractor in Windsor