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 Cotati, CA
Home remodeling in Cotati runs $9,000 – $130,000 depending on scope, with most whole-house projects falling between $45,000 and $130,000. We’re Penhallow Remodeling, and we handle kitchen remodels, bathroom renovations, and whole-home transformations for Cotati’s wood-frame ranch homes and the older properties near the hexagonal downtown grid. Our crews work from the San Francisco Bay Area office and serve Cotati locally, bringing written prices and the 365-Day Done Right Promise to every job. Call (936) 259-2607 to schedule your free estimate.
Why Cotati Homes Are Different
Cotati’s housing stock tells a clear story. The bulk of residential construction happened between the 1960s and 1980s, leaving neighborhoods full of modest wood-frame ranches and tract homes, many built with unbraced cripple-wall foundations that don’t meet current seismic standards. The Rodgers Creek Fault runs just east of the city, so soft-story seismic retrofitting is a constant conversation on our job sites.
Then there’s the downtown hexagonal street grid, laid out in the 1890s and radiating from a central plaza. Those irregular lot geometries create atypical setbacks and non-rectangular building envelopes that complicate every permitted addition or accessory structure in the historic core. A contractor who treats a Cotati downtown lot like a standard rectangle will hit surprises at plan check.
Hydrology adds another layer. Cotati sits within the Laguna de Santa Rosa floodplain corridor, and FEMA Special Flood Hazard designations in portions of the city trigger elevated slab requirements, flood-resistant material specs, and additional permitting steps that upland neighbors like Rohnert Park simply don’t face. With 28 – 30 inches of winter rainfall annually, site drainage and moisture management aren’t afterthoughts here, they’re built into the foundation details from day one.
Our Main Cotati Services
Most Cotati homeowners who call us start with one of these three projects:
General Contractor in Cotati
We manage permitted additions, seismic retrofits, and structural updates for Cotati’s aging ranch stock and the trickier infill projects near the hexagonal downtown core. Our crews know Sonoma County’s CALGreen amendments and local inspection schedules, which out-of-area subs routinely underestimate. Every job gets a written price before work starts and a defined arrival window. General Contractor in Cotati
Bathroom Remodeling in Cotati
Cotati’s 1960s – 70s bathrooms are typically compact, with galvanized supply lines and original tile-over-tub setups that don’t age well in our wet winters. We replace these with moisture-resistant cement board substrate, proper exhaust ventilation, and fixtures from Kohler and Moen that carry their own warranties alongside our 365-Day Done Right Promise. Bathroom Remodeling in Cotati
Kitchen Remodeling in Cotati
Kitchens in Cotati’s ranch and tract homes often have galley or U-shaped layouts with limited wall space for cabinet runs. We reconfigure these with KraftMaid or Wellborn cabinetry, Cambria or Silestone countertops, and lighting plans that compensate for the original small window openings. Every quote is itemized and fixed before demo day. Kitchen Remodeling in Cotati
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 Cotati
Whole-home remodeling in Cotati means working with the specific conditions of 1960s – 1980s wood-frame construction: unbraced cripple walls that need seismic attention, original electrical panels at capacity, and floor plans designed for a different era of family life. We regularly see projects where the homeowner wants to open up the main living area, add square footage toward the rear yard, or bring an aging ranch up to current energy and safety codes. Our Home Remodeling process starts with a site assessment that accounts for Cotati’s floodplain constraints, irregular downtown lot lines, and the inspection requirements that Sonoma County’s CALGreen amendments add to the standard California code cycle.
Whole House Remodel
Signs you need it
Your home has the original 100-amp electrical service, single-pane aluminum windows, a floor plan with three small bedrooms and one bath, and you’re considering moving rather than fixing what you already own.
What it costs in Cotati
A whole house remodel in Cotati typically runs $45,000 – $130,000, with most projects landing in the $60,000 – $90,000 range depending on whether we’re moving walls, upgrading the electrical service, or adding conditioned square footage.
How we do it
We start with a written scope and fixed price, then sequence the work so you’re not living in a construction zone for months: rough electrical and plumbing first, followed by structural changes, insulation and drywall, then finishes and fixture installation, with a final punch walk and the 365-Day Done Right Promise in writing.
Home Renovation
Signs you need it
Your home is structurally sound but dated, with worn flooring, tired kitchens and baths, inefficient heating, and a general sense that the space doesn’t match how you actually live.
What it costs in Cotati
Home renovation projects in Cotati typically range from $9,000 for focused room updates to $45,000 for more extensive cosmetic and systems refreshes that leave the footprint intact.
How we do it
We assess which elements are worth keeping, specify replacement materials from recognized brands like James Hardie siding or Therma-Tru doors, and coordinate the trades so flooring, painting, and fixture installation happen in the right sequence with one clean job site standard.
What Home Remodeling Costs in Cotati
| Item | Typical range in Cotati |
|---|---|
| Whole House Remodel | $45,000 – $130,000 |
| Home Addition | $45,000 – $130,000 |
| Kitchen Remodel | $14,000 – $45,000 |
| Small Kitchen Remodel | $9,000 – $20,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Small Bathroom Remodel | $5,000 – $12,000 |
| Garage Conversion | $30,000 – $80,000 |
| ADU Construction | $90,000 – $220,000 |
How long does a whole house remodel take in Cotati?
Most whole house remodels in Cotati take 3 – 5 months from permit approval to final inspection, with Sonoma County’s CALGreen review adding 2 – 4 weeks to the permitting timeline compared to simpler jurisdictions. Call (936) 259-2607 and we’ll walk you through the schedule for your specific project.
Will the price change once work starts?
No. We give you a written, line-item price before any work begins, and that number is the number on your invoice. The only way the price changes is if you add scope, and even then we write the change order and you approve it before we proceed.
Brands We Service in Cotati
We install and service materials from recognized trade brands: KraftMaid and Wellborn cabinetry, Cambria, Silestone and Caesarstone countertops, Kohler, Moen, Blanco and Delta fixtures, James Hardie siding, and Therma-Tru entry systems. For accessory dwelling units and backyard studios, we also work with Abodu, Cover, and Dvele prefabricated systems when the site and zoning allow. Most standard parts are stocked through our San Francisco Bay Area supply chain with 24 – 48 hour turnaround. See our brands for the full list.
Pricing for Remodeling Company in Cotati, CA
| Service | Typical range in Cotati |
|---|---|
| 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 |
Three factors push Cotati projects toward the higher end: floodplain-related foundation and material requirements in FEMA-designated zones, seismic retrofitting tied to unbraced cripple walls, and the irregular lot geometries near the hexagonal downtown that demand custom structural solutions. Whatever your project involves, you’ll get the written price before we start, not a ballpark that shifts at the door.
Neighborhoods We Serve in Cotati
Our crews work across Cotati’s full residential map, from the 1960s ranch tracts near the golf course to the tighter lots around the hexagonal downtown core and the newer infill near East Cotati Avenue. Dispatch and scheduling are coordinated from our San Francisco Bay Area office, with crews typically arriving within the window we give you.
- Downtown Cotati (hexagonal grid historic district)
- West Cotati / Golf Course area ranch tracts
- East Cotati Avenue corridor
- La Plaza neighborhood
- Roblar Road area
Service Area – Cities Near Cotati
We serve Cotati homeowners directly and also take projects in the surrounding communities where our crews are already working. If you’re in Rohnert Park, CA, Petaluma, CA, Santa Rosa, CA, or Sebastopol, CA, the same written pricing, background-checked uniformed technicians, and 365-Day Done Right Promise apply. Call (936) 259-2607 and we’ll confirm coverage for your address.
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 Remodeling Company in Cotati
Yes. We handle the full permit application, plan submission, and inspection scheduling with the City of Cotati and Sonoma County as required. For projects in the FEMA floodplain or the historic hexagonal district, we manage the additional review layers that out-of-area contractors often miss.
Most Cotati neighborhoods don’t have active HOAs, but the downtown hexagonal historic district and some newer developments do have design review or architectural guidelines. We review these requirements during our initial site assessment and include any needed documentation in our permit package.
Yes, and we do so regularly. Cotati floodplain projects require elevated slabs, flood-resistant materials below the base flood elevation, and additional permitting steps. We account for these requirements in our written price and timeline from the first meeting, not as surprises after work begins. Call (936) 259-2607 to discuss your specific property.
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 Cotati Customers Say
"Gutted and redid the master bath. They gave me a schedule and actually stuck to it. Any time there was a choice to make they called me instead of guessing. Love the result."
- Kayla Benton"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