Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
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AfterWindow Company in Inverness, CA
Window and door work in Inverness runs into conditions you won’t find twenty minutes inland. Salt air off Tomales Bay, fog pouring over the Point Reyes headlands, and a housing stock of 1920s-to-1960s wood-frame cottages mean most jobs here are replacements on original single-pane assemblies, not fresh installs. We’re Westlight Windows & Doors, an independently owned and operated Kingswell location, and we carry eight manufacturer lines so the product matches the marine environment rather than fighting it. Most Inverness window replacements run $900-$1,500 per window installed. Call (903) 354-7134 for a written price before any work starts.
Why Inverness Homes Are Different
Inverness sits in a fog-and-wind corridor that keeps standard residential components degrading faster than almost anywhere else in Marin County. The persistent marine layer means wood sills rot within a decade without aggressive sealing. Aluminum frames pit and corrode. Foam weatherstripping compresses and fails in two to three seasons. We routinely open up walls on these cottages and find the original tongue-and-groove framing around the sash has turned soft enough to push a screwdriver through.
Most homes here are small wood-frame cottages and cabins built between the 1920s and 1960s as seasonal retreats, then converted to full-time living without envelope upgrades. The windows are typically single-pane wood sash with hardware original to the mid-century build. Because Point Reyes National Seashore wraps three sides of the community, new construction is essentially nonexistent. Every job we do in Inverness is replacement work on aging assemblies.
The regulatory layer matters too. If the replacement changes a window’s exterior appearance or size even slightly, the job often triggers a Coastal Development Permit under Marin County’s certified Local Coastal Program. Homeowners routinely underestimate that step, and it shifts both the timeline and the cost. We flag it early, before a quote is even written.
Our Main Inverness Services
Most Inverness homeowners reach out about two things: swapping failed single-pane windows for marine-grade systems, and replacing doors that have warped or corroded in the salt air. Each of these has its own page where we’ve laid out local conditions, pricing, and what the job looks like start to finish.
Window Replacement in Inverness
Replacement here almost always means pulling out original wood sash and installing something that can hold up to fog, wind, and salt. We carry marine-grade fiberglass and vinyl systems, plus impact-rated lines from PGT and CGI for homes that face the open exposure off the Point Reyes headlands. We handle the coastal permit question up front, so you know before work begins whether your replacement triggers a Marin County review. Window Replacement in Inverness covers pricing ranges, product options, and what to expect from a coastal retrofit.
Window Installation in Inverness
Installation in Inverness means fitting a new unit into an existing coastal-era opening, and the detail work is where it gets specific: flashing details that shed wind-driven rain, sealing schedules that stand up to salt air, and weatherstripping that won’t compress into uselessness after two seasons. We set the price in writing before any work starts, and we honor the arrival window we give you. Window Installation in Inverness walks through the process step by step, including how we handle rot repair around existing openings.
Door Installation in Inverness
Exterior doors in Inverness take a beating: wind-driven moisture, salt spray, and temperature swings that make wood swell and contract. We install fiberglass entry systems from Therma-Tru that won’t warp the way wood doors do in this climate, along with hardware rated for coastal exposure. A door that binds in the jamb or lets daylight through the threshold is a common call here. Door Installation in Inverness details pricing, product options, and how we handle out-of-square openings on older cottages.
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.
Brands We Service in Inverness
We service and install products from eight manufacturer lines, and for Inverness work we most often specify PGT and CGI impact-rated windows, CWS for vinyl replacement, and ViewLux for picture-window clarity on bay-facing walls. Parts are stocked locally through our supply network, which keeps turnaround on service calls shorter than ordering from out of state. See the full list on our brands page.
Pricing for Window Company in Inverness, CA
| Service | Typical range in Inverness |
|---|---|
| Single window replacement (standard size) | $900-$1,500 installed |
| Single window replacement (oversized or custom) | $1,500-$2,500 installed |
| Bay or bow window replacement | $2,500-$6,500 installed |
| Full home window replacement (small cottage) | $9,000-$15,000 installed |
| Full home window replacement (larger home) | $15,000-$50,000 installed |
| Rotted sill repair around existing opening | $300-$800 per window |
| Exterior door replacement (standard single) | $1,200-$3,000 installed |
| Sliding glass door replacement | $1,800-$4,500 installed |
| French door replacement | $2,500-$7,000 installed |
| Storm door installation | $350-$850 installed |
What pushes price up in Inverness specifically is rot repair around existing openings and the coastal permit application when a replacement changes exterior appearance. You’ll get a written price before any work starts, and that number doesn’t change at the door. No revised invoices, no surprise add-ons.
Neighborhoods We Serve in Inverness
We work throughout Inverness and the surrounding coastal zone, from the bay side to the ridge. Our crews are familiar with the permit triggers on parcels inside the Local Coastal Program boundary and the rot patterns common to these older cottages.
- Downtown Inverness and the commercial corridor
- The hillside streets above Sir Francis Drake Boulevard
- Bayfront properties along Tomales Bay
- The residential pockets off Vision Road and Camino del Mar
- Cottages on the approach to Pierce Point Road
For most Inverness jobs, we can get a crew to your property within a few business days of signing the quote. Exact scheduling depends on the coastal permit timeline when one applies.
Service Area – Cities Near Inverness
Beyond Inverness, Westlight serves a stretch of Marin and southern Sonoma County. We’re active in Petaluma, CA, Novato, CA, Cotati, CA, and Fairfax, CA. If you’re in one of those towns and dealing with the same marine-layer wear or an aging wood-framed home, the same written-price promise and guarantee apply.
Serving Inverness, CA - Our Local Coverage Area
We’re based in the Inverness 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 Window Company in Inverness
Often, yes. If the replacement changes the exterior appearance or size of the opening even slightly, Marin County’s Local Coastal Program likely requires a Coastal Development Permit. We assess each job during the estimate and flag the permit requirement before you sign anything.
Most single-window replacements finish in one day. A full cottage replacement typically runs three to five working days. If a coastal permit is required, that adds timeline before the installation date, not to the install itself. Call (903) 354-7134 for a schedule estimate specific to your property.
In Inverness, yes. Salt air and persistent moisture cause wood rot and hardware corrosion far faster than inland Marin. Standard builder-grade components fail within a few seasons. That’s why we specify marine-grade fiberglass or vinyl, and why the product line matters more here than in most towns.
If your windows or doors are showing their age against this climate, call (903) 354-7134 to schedule a free estimate. Owen and the Westlight team will give you a written price before any work begins, and everything goes in writing before a single screw turns.
What happens when you call
- 1A real person answersNo phone trees - talk to a local windows & doors 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 Inverness Customers Say
"Got quotes from three companies. Westlight wasn't the cheapest but they were the only one who measured everything carefully and put it all in writing. Worth it. No surprises on install day."
- Craig Dillard"Our sliding patio door had come off its track years ago and we just lived with it. New one is smooth as butter. They hauled off the old one and vacuumed up before they left."
- Jessica Landry"Replaced eight drafty old windows that were basically single pane. The house is warmer already and the street noise is way down. Crew was on time both days and the price was exactly the quote."
- Harold Bemis