Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Before
After
Before
After
Before
AfterFast, Reliable Windows & Doors Across Kentfield
Windows and doors in Kentfield take a beating most Bay Area homes never see. This unincorporated pocket of Marin sits at the base of the hills where marine air stalls, drops its moisture, and keeps working on wood framing, seals, and thresholds all season long. A window that performs fine in Larkspur or Corte Madera will often show rot and warping within a decade here, simply because Kentfield averages two to three times the rainfall of San Francisco. If you’ve noticed drafts, sticking sashes, fogged glass, or a door that won’t latch after years of seasonal swelling, that’s the Kentfield climate doing its work. Barrett & Sons Construction handles window and door replacement with that reality in mind, from College of Marin-adjacent streets up through the hillside parcels near Kent Woodlands. Call us at (877) 610-1318 to have Tom or one of his sons come take a look, on your schedule, with a written line-item quote before any commitment.
Why Barrett & Sons Construction Is Kentfield’s Preferred Windows & Doors Company
We’ve been owner-operated since 1998, and Tom Barrett’s sons run the crews that show up at your door. That’s not a franchise pitch. It means the person measuring your window openings is the same name on the contract, and if something is not right 90 days later, the written Done Right Promise means Tom comes back and fixes it with one phone call. No case number. No out-of-state call center. Our office coordinates scheduling for Kentfield jobs through our San Francisco Bay Area base, and a live person answers at (877) 610-1318 any hour of any day.
We’ve worked enough homes off Sir Francis Drake Boulevard and up through the sloped residential streets to know what Marin County’s building department will ask for before they sign off on a window or door replacement. Kentfield is unincorporated, which means permits run through the county, not a city hall. That adds a review layer most valley-floor towns never deal with, including Wildland-Urban Interface fire-resistant requirements for homes near the hill edges. We pull permits on every eligible job. We’ve never told a customer permits were optional, and we don’t plan to start. We also publish Tom Barrett’s name, address, and license number openly. Look us up before you sign anything.
Our customers in Kentfield tend to ask the same two things no matter the project: “Will the price change once work starts?” and “Will the inspector actually come?” On the first question, every allowance and every price change arrives as a written change order before work proceeds. You’ll never open a bill and find a surprise. On the second, yes, the inspector comes, and we welcome him. The permit inspector works for you, not for us.
You can read more about how we approach this trade on our Windows & Doors page, and if you’re also weighing a fence along the uphill side of your lot, our Fence Installation in Kentfield crew handles those projects with the same permitting discipline.
Our Windows & Doors Services in Kentfield
Window Installation
Kentfield’s mid-century homes, most built between the 1950s and 1970s, were framed for single-pane windows and generous overhangs. New double-pane or triple-pane units are heavier, which means the rough openings often need reframing, not just caulk and trim. We handle the full scope, from structural opening adjustments to final flashing and exterior trim. Many Kentfield homes sit on stepped or post-and-pier foundations that have settled over decades of heavy rainfall, so we square every opening before the window goes in, not after.
Door Installation
Exterior doors in Kentfield catch the worst of the wind-driven rain that sweeps up from the south and west. A poorly flashed threshold here fails fast. We install fiberglass, steel, and solid wood doors with proper sill pans, flashing, and weatherstripping rated for wet, exposed conditions. We also replace interior doors for Kentfield homeowners who want to update solid slab doors from the original build while they’re at it.
Window Replacement
If your home still has original aluminum or wood single-pane windows, you’re losing heat on cold foggy nights and fighting moisture intrusion every winter. A typical full-home window replacement in Kentfield runs $4,500 to $15,000 depending on the window count, style, frame material, and whether the openings need reframing. We walk you through the options before you commit to anything, and you’ll see the actual material costs on the written quote. No allowances buried in a verbal estimate.
Impact Windows & Doors
This matters more in Kentfield than most people expect. The parcels nearest the Kent Woodlands edge and the hillside streets above Sir Francis Drake Boulevard fall inside Marin County’s Wildland-Urban Interface zone, which means the county fire marshal enforces fire-resistant construction standards for windows, doors, vents, and cladding. We carry impact-rated window and door lines that meet WUI requirements without looking like a commercial storefront. If you’re replacing windows on a hillside parcel, talk to us before you order materials. The compliance path is easier when you plan for it from the start.
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.
Trusted Brands We Service in Kentfield
We install Andersen and Marvin windows and doors because they’re brands you can look up, and because their factory documentation makes Marin County permit review simpler. For sliding and patio doors on wet, wind-exposed sides of the house, Marvin’s extruded aluminum cladding holds up better against Kentfield’s long wet season than vinyl alternatives. We don’t carry mystery brands off the back of a van. We also stock common weatherstripping, seals, and hardware locally so a simple repair doesn’t wait on a freight shipment. Whether you need a full replacement or just a threshold that finally seats correctly, we can quote it accurately on the first visit. And if you’re updating the walkway or driveway approach while we’re on site, we also handle Driveway & Pavers in Kentfield with materials you can verify, like Belgard and Techo-Bloc.
Common Windows & Doors Problems We See in Kentfield Homes
- Chronic wood rot at sills and thresholds. Kentfield’s orographic lift effect delivers 50 to 60 inches of rain a year, more than double San Francisco’s total. South and west-facing sills on older homes soak, dry, and soak again until the wood turns spongy. We replace the rot, not just caulk over it.
- Sticking or binding doors from foundation movement. The post-and-pier and stepped foundations under many hillside homes shift during heavy seasonal rainfall. A door that latched fine in September may bind by February. The fix often starts with squaring the frame, not planing the door down.
- Fogged double-pane glass from failed seals. This is not always age. Condensation between panes often traces back to water getting behind the frame through failed flashing, especially on the windward side of the house. Replacing just the glass without addressing the flashing means it happens again.
- Drafty original windows on mid-century homes. Kentfield’s 1950s and 1960s builds were framed for single-pane windows. New double-pane units are heavier and need properly sized openings. Generic installers sometimes cut corners on reframing, and the gaps show up as drafts within a season.
Pricing for Windows & Doors in Kentfield, CA
Window replacement in Kentfield typically runs $4,500 to $15,000 for a whole-home project, while impact window installation on WUI-adjacent parcels starts around $8,000 and can reach $25,000 for larger hillside homes with many openings. Door installation varies widely by material: a quality fiberglass entry door with proper flashing and hardware usually falls between $1,500 and $5,000 installed, while custom wood or impact-rated doors run higher. Sliding and patio door replacement on Kentfield’s wetter exposures often costs $2,500 to $9,000 depending on size and glass package. These ranges reflect Marin County permit requirements, WUI material costs where applicable, and the reality of working on sloped lots where access and shoring add labor. You’ll get fixed pricing in writing before work starts, not an estimate that drifts upward after demo day. Call (877) 610-1318 for a free estimate on your specific home.
We Also Serve Cities Near Kentfield
Barrett & Sons works throughout central Marin, including Larkspur, San Anselmo, Corte Madera, and Fairfax. The same permitting discipline and written pricing applies wherever we go. Find the full local picture on our Windows & Doors in Kentfield page, and if the job crosses trade lines, ask us about the other services we provide across the county.
Serving Kentfield, CA - Our Local Coverage Area
We’re based in the Kentfield 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 - Windows & Doors in Kentfield
We schedule estimates in Kentfield within a few business days, and often sooner when there’s an active leak or failed door. There’s no trip charge inside Marin County, and a live person answers at (877) 610-1318 around the clock to get you on the calendar.
Yes. We work regularly on the sloped streets above Sir Francis Drake Boulevard, including homes near Kent Woodlands and the College of Marin edges. Those parcels often fall inside Marin County’s WUI zone, which means fire-resistant window and door requirements apply, and we plan for that from the first site visit, not after the materials arrive.
For a broken pane or a door that won’t secure, we prioritize repairs and can usually get a crew member out quickly to assess and temporarily secure the opening until a permanent replacement is ordered. Call (877) 610-1318 and we’ll tell you honestly what the timeline looks like for your specific situation.
Kentfield is unincorporated, so permits and inspections run through Marin County rather than a municipal building department, and many hillside parcels carry WUI fire-resistant material requirements that add cost. Rainfall and slope conditions also mean more substantial flashing, shoring, and sometimes structural opening work. A typical window replacement here runs $4,500 to $15,000, and impact-rated work on WUI parcels runs $8,000 to $25,000. A quote from a valley-floor contractor who doesn’t account for county-level requirements may come in lower and then climb once the inspector is involved. Our quotes are fixed and in writing before work starts, with no surprises at the end.
Every project includes our written 90-Day Done Right Promise. If something is not right, Tom Barrett comes back and makes it right with one call. That warranty sits on top of the manufacturer’s warranty from the window and door brand, and it’s written on the contract, not buried in fine print. Call (877) 610-1318 for an exact quote on your project; estimates are free.
Contact Barrett & Sons Construction in Kentfield
If you’re tired of quotes that shift and contractors who vanish after the check clears, give us a call. We’ve been owner-operated since 1998, the sons run the crews, permits get pulled on every eligible job, and our pricing arrives in writing before a single nail moves. Call (877) 610-1318 to schedule your free estimate for windows, doors, or any of our related services in Kentfield. We serve the whole community, from the flats near Sir Francis Drake to the hill-edge parcels near Kent Woodlands.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Kentfield and Marin County.