Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
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Westlight Windows & Doors is a window company serving Tiburon, CA, where homes from the 1950s through 1980s hold original aluminum-frame single-pane picture windows that face salt-laden bay air every day. That combination reshapes every job here: material choices matter more, view glass is non-negotiable, and marine exposure shortens the life of standard hardware. If you need windows or doors replaced or installed on a Tiburon hillside home, call us at (903) 354-7134 for a free estimate with a written price before any work starts.
Why Tiburon Homes Are Different
Tiburon sits on a peninsula, and the homes on its bay-facing slopes take the full force of prevailing breezes off San Francisco Bay. Salt air corrodes aluminum frames, pits hardware, compromises insulated glass seals, and eats weatherstripping noticeably faster than in Marin towns just a few miles inland. In Paradise Cay and along the lower waterfront, standard aluminum-clad windows can show frame oxidation and hardware failure within five to seven years. That is why we treat marine-grade fiberglass frames and stainless steel hardware as the starting point for anything within a few hundred feet of the water line, not as an optional upgrade.
The housing stock drives decisions too. Mid-century hillside construction from the 1950s through the 1980s dominates, with heavily glazed elevations built to frame views of Angel Island and the Bay. Many of those original single-pane glass panels are still in place, decades past their service life. Closer to Old Town and Ark Row, older wood-frame homes show accelerated rot and paint failure on window sills and door jambs from persistent bay moisture. Every job we price in Tiburon accounts for these local pressures before the first screw turns.
Our Main Tiburon Services
Most Tiburon homeowners call us about two things: replacing old windows that have failed, and installing new windows or doors that will hold up to bay-side conditions. Here is what each involves in Tiburon.
Window Replacement in Tiburon
Replacing a Tiburon window means pulling out aluminum-framed single panes and setting in glass that preserves the view while standing up to salt air. Low-e glazing (a thin coating that reflects heat back into the room in winter and out in summer) matters here, because bay winds strip heat from large glass elevations. We match frame material to proximity to the water, and we write the price before work begins. Window Replacement in Tiburon has the full breakdown.
Window Installation in Tiburon
New window installation in Tiburon is often part of a larger project: a remodel, a room addition, or a wall of glass that turns a hillside living space toward the Bay. The framing, flashing, and sealing details are different on a sloped lot with wind-driven rain than on a flat inland parcel. We handle all of it, from product selection to final cleanup. Window Installation in Tiburon covers the specifics.
Door Installation in Tiburon
Entry doors in Tiburon take a beating from salt air and afternoon wind, and wood frames near Old Town rot faster than most people expect. We install Therma-Tru entry doors and other lines matched to exposure level, with hardware specified for marine conditions. A door here is not just a door: it is the first thing that fails when weather gets past the finish. Door Installation in Tiburon explains the options.
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 Tiburon
We carry eight manufacturer lines, and for Tiburon we lean on the ones built for coastal conditions: PGT and CGI for impact-rated glass, CWS for custom window walls, and ViewLux for large-format view windows. Our brands page shows every line we stock and install.
Pricing for Window Company in Tiburon, CA
| Service | Typical range in Tiburon |
|---|---|
| Single window replacement | $700 - $1,400 installed |
| Full-home window replacement (8-12 windows) | $8,000 - $18,000 installed |
| New window installation (new opening) | $1,200 - $3,000 per window installed |
| Entry door installation (single) | $1,500 - $3,500 installed |
| Patio door installation | $2,500 - $6,000 installed |
| Marine-grade fiberglass window upgrade | Adds 15-25% over standard aluminum-clad |
| Impact-rated glass (PGT or CGI) | Adds 10-20% per window depending on size |
| Full-home window and door package | $12,000 - $30,000 installed |
What pushes price up in Tiburon is location relative to the water line and the size of the glass panels. Large view windows and marine-grade frames cost more because they must perform differently. Whatever the scope, you receive a written price before any work starts, and that price does not change at the door.
Neighborhoods We Serve in Tiburon
We work across the Tiburon peninsula, from the hillside streets above Main Street down to the waterfront. We schedule jobs by neighborhood each week, and most Tiburon appointments can be scheduled within a few business days. Neighborhoods we regularly serve include:
- Paradise Cay
- Old Town Tiburon / Ark Row
- Belveron
- Reed Heights
- Hill Haven / Sugar Loaf
Service Area – Cities Near Tiburon
Westlight Windows & Doors is an independently owned and operated Kingswell location, and our Bay Area office coordinates scheduling for Tiburon and nearby communities. While this page focuses on Tiburon, our crews also serve San Francisco, CA, San Jose, CA, San Diego, CA, and Los Angeles, CA. Each area has its own page with local conditions and pricing.
Serving Tiburon, CA - Our Local Coverage Area
We’re based in the Tiburon 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 Tiburon
Most Tiburon appointments can be scheduled within a few business days. We give every homeowner a real arrival window before the visit, and a real person answers our phone 24 hours a day to set that up. Call (903) 354-7134 and you will speak to a person, not a voicemail box.
Many Tiburon hillside and waterfront communities have HOAs with specific rules about window styles, frame colors, and glass types. We cannot file those applications for you, but we can provide the product specifications and cut sheets your HOA will ask for. Start with a call to (903) 354-7134 for a free estimate.
Most window and door replacements in Tiburon require a Marin County building permit, especially when the opening size changes or structural framing is involved. We handle the permit application and schedule the required inspections. The permit cost is included in your written price before work begins. Call (903) 354-7134 and we will walk you through what your specific job needs.
Call (903) 354-7134 to schedule a free estimate with Westlight Windows & Doors. You will get a written price before any work starts, and a written guarantee when the job is done.
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 Tiburon 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