Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
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AfterRemodeling Company in Sonoma, CA
Home remodeling in Sonoma runs $9,000 – $130,000 depending on scope, with most kitchen and bath projects falling between $14,000 – $45,000 and whole-home or addition work climbing higher. We’re Penhallow Remodeling, and we handle kitchen remodels, bathroom remodels, and whole-home renovations for Sonoma homeowners navigating one of the most complex permitting environments in the Bay Area. Whether you’re updating a 1950s ranch near the plaza or rebuilding a hillside estate after the 2017 fires, our crews work from the San Francisco Bay Area office and serve Sonoma directly. Call (936) 259-2607 to schedule your free estimate.
Why Sonoma Homes Are Different
Sonoma’s housing stock is a study in contrasts. Near the historic plaza, Spanish Colonial adobes and Victorian-era cottages sit under Sonoma’s historic preservation review, which adds a design-review layer to any exterior change. The flatlands hold mid-century ranches and 1970s tract homes with original layouts that no longer fit how families live. On the surrounding hillsides, large rural estates carry secondary structures, barns, and guest houses, many rebuilt after the Nuns Fire to California’s hardened construction standards.
The terrain and climate create real construction challenges. Seasonal Diablo winds push fire risk to extreme levels from August through October, making fire-resistant detailing and defensible-space grading mandatory on hillside projects, not optional. Winter rains concentrate heavily here, and the valley’s clay-heavy soils expand and contract dramatically, stressing slab-on-grade foundations and requiring soil engineering before any new pour.
The permit stack is where out-of-area contractors stumble. Hillside parcels often need a Sonoma County grading permit, biological resources clearance for oak woodland and riparian setbacks, and Sonoma Valley Fire District defensible-space sign-off before a building permit can even be issued. That timeline and cost belong in your project plan from day one.
Our Main Sonoma Services
These are the three services Sonoma homeowners call us about most often.
General Contractor in Sonoma
We coordinate the full scope of residential construction, from structural repairs to finished carpentry, with one point of contact and one written price. In Sonoma, that means managing the pre-permit stack on hillside parcels, scheduling inspections around the county’s timeline, and ensuring fire-hardened detailing meets current code on any rebuild or major renovation. Our background-checked, uniformed crews handle the coordination so you don’t have to chase subcontractors. General Contractor in Sonoma covers our full capabilities.
Bathroom Remodeling in Sonoma
Bathroom projects here range from compact guest bath updates in historic plaza cottages to spa-style master baths in hillside estates with wine-country views. We work within Sonoma’s varied plumbing configurations, from original galvanized in pre-war homes to modern PEX in post-fire rebuilds, and we specify moisture-resistant cement board substrate behind every tile installation. Our written price covers demo, rough plumbing, electrical, finishes, and fixture installation with no change orders. Bathroom Remodeling in Sonoma has the details.
Kitchen Remodeling in Sonoma
Kitchens are the heart of most Sonoma remodels, whether we’re opening up a closed 1960s ranch layout or designing a chef’s kitchen for a vineyard estate. We install KraftMaid and Wellborn cabinetry, Cambria, Silestone, and Caesarstone countertops, and Kohler and Moen fixtures, with every selection backed by our 365-Day Done Right Promise. The written price you receive before work starts includes cabinets, counters, backsplash, flooring, lighting, and appliance rough-in. Kitchen Remodeling in Sonoma walks through our process.
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.
- 4
You approve before work beginsNothing starts until you say go.
Home Remodeling in Sonoma
Home remodeling in Sonoma means working across eras and conditions, from historic adobes with thick walls and unlevel floors to fire-hardened new construction with engineered substrates and Class A assemblies. We handle whole-home renovations that reconfigure flow for modern living, luxury upgrades that match vineyard-estate expectations, and structural renovations that address the clay-soil foundation movement common in lower-lying neighborhoods. Our Home Remodeling hub covers our full approach, and every Sonoma project starts with a written price and a written 365-Day Done Right Promise.
Whole House Remodel
Signs you need it
Your floor plan hasn’t been updated since the original build, rooms feel disconnected, or you’re combining a post-fire rebuild with unfinished older sections of the property.
What it costs in Sonoma
Whole house remodels typically range from $45,000 – $130,000 depending on square footage, structural changes, and finish level, with hillside properties often landing higher due to access and fire-hardening requirements.
How we do it
We start with a structural assessment, develop a phased plan that keeps you housed if possible, coordinate all trades through one schedule, and finish with a walkthrough where any item on the punch list gets resolved before final payment.
Home Renovation
Signs you need it
Specific systems or rooms are failing, outdated, or out of character with the rest of the home, but a full gut isn’t necessary or budgeted.
What it costs in Sonoma
Targeted home renovations typically run $9,000 – $45,000 for kitchen or bath focused work, with smaller single-room projects starting around $5,000 – $12,000.
How we do it
We isolate the renovation zone to limit dust and disruption, match new finishes to existing materials where they remain visible, and pull permits for any structural, electrical, or plumbing changes.
What Home Remodeling Costs in Sonoma
| Item | Typical range in Sonoma |
|---|---|
| Small bathroom remodel | $5,000 – $12,000 |
| Bathroom remodel | $9,000 – $28,000 |
| Small kitchen remodel | $9,000 – $20,000 |
| Kitchen remodel | $14,000 – $45,000 |
| Home addition | $45,000 – $130,000 |
Do you pull permits for home remodeling in Sonoma?
Yes, we pull all required permits and schedule inspections. In Sonoma, that often means coordinating with the city, Sonoma County, and Sonoma Valley Fire District before work begins. Call (936) 259-2607 and we’ll walk through what your specific project requires.
Will the price change once work starts?
No. The Kingswell Way requires a written price before any work starts, and that number appears on your invoice. If you request changes during the project, we write a change order with a new fixed price before proceeding. Call (936) 259-2607 for your written estimate.
Brands We Service in Sonoma
We install and service products from recognized trade brands including KraftMaid, Wellborn, Cambria, Silestone, Caesarstone, Kohler, Moen, and James Hardie, with parts sourced through our Bay Area supply network for consistent turnaround. For specialized prefab and modular projects, we also work with our brands including Abodu, Cover, and Dvele.
Pricing for Remodeling Company in Sonoma, CA
| Service | Typical range in Sonoma |
|---|---|
| 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 |
| Small bathroom remodel | $5,000 – $12,000 |
| Walk-in shower installation | $4,500 – $12,000 |
| Tub-to-shower conversion | $3,500 – $10,000 |
| Home addition | $45,000 – $130,000 |
| ADU construction | $90,000 – $220,000 |
| Garage conversion | $30,000 – $80,000 |
| Roof replacement | $8,000 – $20,000 |
Prices in Sonoma trend toward the higher end of these ranges for hillside properties with complex access, fire-hardening requirements, or extensive pre-permit work. Every homeowner receives a written, line-item price before any work starts, guaranteed under the Kingswell standard.
Neighborhoods We Serve in Sonoma
Our crews work across Sonoma’s varied neighborhoods, from the historic core to the rural hillsides. Most projects can be estimated within a few days of your call, with scheduling coordinated from our Bay Area office.
- Sonoma Historic District (Plaza area)
- Agua Caliente
- Fetters Hot Springs
- El Verano
- Sonoma Hills and Vineyards
Service Area – Cities Near Sonoma
We serve homeowners throughout the Sonoma Valley and surrounding communities. Our crews regularly work in Boyes Hot Springs, CA, just south of the city limits, and in Petaluma, CA to the west. We also handle projects in Novato, CA and Cotati, CA, bringing the same written pricing and 365-Day Done Right Promise to every job.
Serving Sonoma, CA - Our Local Coverage Area
We’re based in the Sonoma 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 Sonoma
Simple interior remodels may clear in 2 – 4 weeks, but hillside projects often require 6 – 12 weeks for grading, biological resources, and fire district clearances before the building permit issues. We build realistic timelines into every written estimate.
Yes, we regularly remodel historic properties subject to Sonoma’s preservation review. We coordinate the design review process and specify materials that meet both code and historic compatibility standards.
Our 365-Day Done Right Promise covers it. If the work fails inside the guarantee period, we come back and fix it at no charge. The guarantee is included in writing on every project, no exceptions.
What happens when you call
- 1A real person answersNo phone trees - talk to a local construction pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Sonoma Customers Say
"Kitchen and dining room opened up into one space. They were honest about which wall could come down and which couldn't, no sugarcoating. Dust was kept way down with plastic everywhere."
- Oscar Benitez"Redid two bathrooms at once. The crew protected the floors and cleaned up every single day before leaving. Quote was detailed and there were no mystery charges at the end."
- Tricia Dawson"Full home refresh before we sold. They were straight about what was worth doing and what wasn't to get our money back. On time, on budget, and it sold in a week."
- Monica Vaughn