Penhallow Remodeling construction team

Remodeling Company in Sebastopol - Licensed & Insured, Written Fixed-Price Quotes

Free on-site estimate and a written, line-item quote before any work begins. One contract, one crew, one accountable point of contact. Licensed, insured, permits handled.

✓ Licensed & Insured ✓ Written quotes ✓ Permits handled
Schedule Free Estimate

Call to schedule your free estimate

🛡 Licensed & Insured 📝 Written Fixed-Price Quotes 💲 No Change Orders · Free Estimates
Every visit starts with

Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled

Your dream remodel for as low as $199/month*on approved credit; ask for current terms
Styles & brands we work with

Kitchen remodeling
Kitchen remodeling
Bathroom remodeling
Bathroom remodeling
Home additions & ADU
Home additions & ADU
Roofing
Roofing
Windows & doors
Windows & doors
Driveway & pavers
Driveway & pavers
Fence
Fence

Before & after – our own jobs

Before - Recent ProjectBeforeAfter - Recent ProjectAfter
Recent Project
Before - Full RestorationBeforeAfter - Full RestorationAfter
Full Restoration
Before - Complete UpgradeBeforeAfter - Complete UpgradeAfter
Complete Upgrade

Remodeling Company in Sebastopol, CA

Home remodeling in Sebastopol runs $9,000 – $130,000 depending on whether you’re updating a single bathroom or reworking an entire farmhouse built during the Gravenstein apple boom. We handle kitchen remodels, bathroom renovations, and whole-home transformations for the unique housing stock here, from late-Victorian farmhouses to owner-built straw bale structures to mid-century ranches sitting on compacted orchard clay. Our crews work with the marine fog corridor that keeps Sebastopol cooler and wetter than Santa Rosa, and we know which permits require flood-zone elevation checks before we pull a single cabinet. Call (936) 259-2607 to schedule your free estimate.

Call (936) 259-2607

Why Sebastopol Homes Are Different

Sebastopol’s housing stock tells the story of three distinct eras. The late-Victorian and Craftsman-era farmhouses date to the Gravenstein apple boom, with balloon framing, knob-and-tube remnants, and foundations that settled unevenly on former orchard land. The mid-century ranches came later, often slab-on-grade with galley kitchens and single bathrooms that don’t match how families live now. And scattered throughout, you’ll find one of California’s highest concentrations of owner-built alternative structures, straw bale, timber frame, and cob, each with its own structural logic and moisture-management needs.

The Laguna de Santa Rosa floodplain shapes what we can build and where. FEMA-mapped AE and X-shaded zones extend into normal-looking residential parcels on the south and west sides, requiring finished floor elevations 12 – 24 inches above grade. Skip that determination early, and you’re redesigning entry steps, garage slabs, and utility stub-outs mid-project. The marine air corridor funnels Pacific fog inland year-round, keeping ambient humidity high enough to drive mold and rot in older wood-frame walls if envelope detailing isn’t precise. Winter rainfall saturates the heavy clay soils from November through April, making excavation and slab work highly seasonal. Every job here sits at the intersection of green-building expectations and floodplain compliance, a combination unique to this city.

Our Main Sebastopol Services

Most calls we get from Sebastopol homeowners fall into three categories: whole-project oversight, bathroom updates, and kitchen reconfigurations. Here’s what each looks like here.

General Contractor in Sebastopol

We serve as the single point of contact for projects that span multiple trades, coordinating electricians, plumbers, and finish carpenters through Sebastopol’s permit process. That includes flood-zone elevation certificates when the parcel sits near the Laguna, and green-building method approvals when owners want straw bale infill or passive solar orientation. Our General Contractor in Sebastopol page breaks down how we handle permitting, scheduling, and the written price guarantee for multi-phase jobs.

General Contractor in Sebastopol

Bathroom Remodeling in Sebastopol

Bathrooms in Sebastopol’s older farmhouses often started as converted porches or additions with no original insulation, while ranch-era baths are typically 5-by-8 feet with a tub nobody uses. We reconfigure these spaces for modern use, accounting for the chronic moisture that fog and clay soils push through foundation cracks and wall cavities. Our Bathroom Remodeling in Sebastopol page covers tub-to-shower conversions, walk-in shower installs, and vanity upgrades with real price ranges.

Bathroom Remodeling in Sebastopol

Kitchen Remodeling in Sebastopol

Kitchens here range from farmhouse originals with sloping floors and no ventilation to 1970s galley layouts walled off from living spaces. We open floor plans where structure allows, upgrade electrical for modern appliance loads, and specify materials that handle Sebastopol’s humidity, cement board substrate behind tile backsplashes, moisture-resistant cabinet boxes, and quartz counters that won’t absorb fog-season damp. See our Kitchen Remodeling in Sebastopol page for cabinet lines, countertop options, and island configurations.

Kitchen Remodeling in Sebastopol
Need help today?Fast, friendly service and a no-obligation free estimate.

Call (936) 259-2607

What happens when you call

  1. 1
    A real person answersNo phone trees - you reach a local pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched.
  3. 3
    A background-checked tech heads outLicensed & insured, dispatched right away.
  4. 4
    You approve before work beginsNothing starts until you say go.

Home Remodeling in Sebastopol

Home remodeling in Sebastopol means working with housing that spans 120 years of construction methods, each with its own structural surprises and moisture vulnerabilities. We’ve reworked Victorian farmhouses with balloon framing and no shear walls, reinforced cob walls for seismic compliance, and lifted entire floor systems in flood-zone parcels to meet FEMA elevation requirements. The Home Remodeling hub covers our full approach, but here’s what Sebastopol-specific jobs look like.

Whole House Remodel

Signs you need it

Your home has multiple systems failing simultaneously, outdated electrical, galvanized plumbing, uninsulated walls, and a floor plan that doesn’t function for your family, or you’ve purchased a fixer in a flood zone and need to bring everything up to code before occupancy.

What it costs in Sebastopol

A whole house remodel in Sebastopol typically runs $45,000 – $130,000 for extensive work, with flood-zone foundation lifts, seismic retrofitting for pre-1940s framing, and green-building method integration adding to the scope compared to standard Santa Rosa projects.

How we do it

We start with a structural assessment and flood-zone determination, then phase the work so you’re never without essential systems, pulling permits through Sonoma County with elevation certificates where required and specifying moisture-resistant materials throughout.

Home Renovation

Signs you need it

Specific rooms or systems need updating, your kitchen functions but looks tired, your bathroom has water damage, or your energy bills spike because 1960s insulation can’t handle Sebastopol’s marine climate.

What it costs in Sebastopol

Targeted home renovations in Sebastopol range from $5,000 for a small bathroom refresh to $45,000 for a full kitchen reconfiguration, with humidity-specific material upgrades and potential asbestos or lead remediation in pre-1978 homes adding modestly to baseline costs.

How we do it

We isolate the work area to keep your home livable, test for hazardous materials in homes built before 1978, and specify vapor-barrier details and mold-resistant finishes that account for the fog corridor’s year-round moisture load.

What Home Remodeling Costs in Sebastopol

Item Typical range in Sebastopol
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
ADU Construction $90,000 – $220,000
Garage Conversion $30,000 – $80,000

How long does a whole house remodel take in Sebastopol?

Most whole house remodels in Sebastopol take 4 – 8 months from permit to final walkthrough, with flood-zone projects adding 2 – 4 weeks for elevation certificate review and foundation work weather delays from November through April. We build that timeline into your written schedule before work starts, and our 365-Day Done Right Promise covers every phase. Call (936) 259-2607 for a detailed timeline with your free estimate.

Do you handle permits for alternative construction methods in Sebastopol?

Yes, we’ve permitted straw bale infill, rammed earth retrofits, and passive solar additions through Sonoma County, and we know which details the local building department expects to see for non-standard assemblies. We pull all permits and schedule inspections as part of your project, with no markup on permit fees. Call (936) 259-2607 to discuss your specific method and schedule a free estimate.

Brands We Service in Sebastopol

We specify materials that hold up to Sebastopol’s marine climate and back them with our written guarantee. That means KraftMaid and Wellborn cabinetry with moisture-resistant construction, Cambria, Silestone, and Caesarstone quartz counters that won’t absorb fog-season damp, and Kohler, Moen, and Delta fixtures with solid brass internals. For exterior work, we use James Hardie fiber-cement siding and Therma-Tru entry systems. See our brands for the full list. Most parts are available through Bay Area distributors with 3 – 5 day turnaround, so we don’t leave your kitchen torn apart waiting for a faucet.

Pricing for Remodeling Company in Sebastopol, CA

Service Typical range in Sebastopol
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 Sebastopol push toward the higher end when flood-zone foundation work is required, when existing structures need seismic retrofitting for open floor plans, or when alternative construction methods need specialized engineering review. We give you a written, line-item price before any work starts, so the number on day one is the number on the invoice. No change orders unless you add scope.

Neighborhoods We Serve in Sebastopol

Our crews work across Sebastopol’s varied terrain, from the in-town parcels near the Laguna de Santa Rosa to the hillside properties off Bodega Highway. Dispatch and scheduling are coordinated from our San Francisco Bay Area office, with local crews serving Sebastopol directly. Most estimates are scheduled within 48 hours of your call.

  • Downtown Sebastopol
  • Laguna Vista area
  • Pleasant Hill / west side
  • Valley Ford corridor
  • Bodega Highway hills

Service Area – Cities Near Sebastopol

We serve homeowners throughout central Sonoma County. Our crews regularly work in Santa Rosa, CA, where the climate shifts noticeably east of the fog corridor, and in Rohnert Park, CA, with its concentration of mid-century ranch homes. We also handle projects in Cotati, CA, and Windsor, CA, bringing the same written pricing and 365-Day Done Right Promise to each job.

Serving Sebastopol, CA - Our Local Coverage Area

We’re based in the Sebastopol 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 Sebastopol

Ready to get started? Free estimates · Written quotes before work starts response in Sebastopol
Call (936) 259-2607

What happens when you call

  1. 1
    A real person answersNo phone trees - talk to a local construction pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
  3. 3
    We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
  4. 4
    You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.

What Sebastopol Customers Say

★★★★★ 5.0 from 6+ reviews

"Did our whole kitchen. The written estimate held, which after reading remodel nightmares online I did not take for granted. Showed up every morning on time and the crew was clean and polite."

- Warren Updike

"We'd been burned by a contractor before who disappeared halfway. Penhallow finished on time and stood behind everything. The written price gave me peace of mind the whole way."

- Simone Clarke

"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

How It Works in Sebastopol

Getting your construction handled is simple and fast.

1

Call or Request a Free Estimate

Tell us about your construction needs and we provide an upfront, transparent quote - no obligation, no hidden fees.

2

Licensed Technician Dispatched

A background-checked, certified technician arrives in Sebastopol - typically within 30-60 minutes, with parts stocked on the truck.

3

Problem Solved, Guaranteed

We complete the job to your full satisfaction, backed by our warranty and 100% satisfaction guarantee.

Current Offers

Bring these savings to your next appointment.

Free On-Site Estimate & Written Quote

No obligation. We measure, price the job in writing, and the quote is yours to keep.

Expires Mar 31, 2027
Always

Written Price Before Any Work Starts

Expires Mar 31, 2027
Included

Written Guarantee on Every Repair

Expires Mar 31, 2027
Free

Free Second Visit if the Repair Fails

Expires Mar 31, 2027

Request a Free Estimate

Tell us what's going on in Sebastopol - we'll get back to you fast. No obligation.

By submitting this form, you acknowledge our Privacy Policy and agree that you may be contacted by call, text, or email regarding your project, including by the service partners who may complete the work.

Prefer to text? Text Now
Call Now - 24/7 Dispatch
Areas We Serve
Call Now - 24/7 Dispatch