Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Window Company in Half Moon Bay, CA
Windows and doors in Half Moon Bay do not fail the way they fail ten miles inland. The persistent salt-laden marine fog that sits over this stretch of the Pacific coast works on window frames, hardware, and seals year-round, and we see the result in nearly every home we walk through: corroded aluminum sliders, fogged double panes, and wood jambs rotting from the outside in. Whether you own a Victorian in Spanishtown or an Oceana tract home from the 1970s, the right window and door specifications here are a real decision, not a formality. Call us at (903) 354-7134 and we’ll walk you through what your house actually needs.
Why Half Moon Bay Homes Are Different
Half Moon Bay’s marine layer is among the most persistent on the California coast. Unlike San Francisco fog that burns off by noon, this one hangs around, keeping relative humidity near or above 80% for long stretches and depositing salt continuously on every exposed surface. What that means for window and door work is concrete: glazing seals degrade faster, wood sills and jambs rot from the outside in, and any ferrous fastener or non-marine aluminum hardware oxidizes within a few seasons. The housing stock makes it more specific. The historic Spanishtown core holds late-1800s and early-1900s Victorian-era wood-frame homes where framing around old windows is often compromised and the rough openings are never square. The Oceana planned community on the south end, which makes up a dominant portion of the city’s residential inventory, carries tract homes now 40 to 50 years old, and many still have their original aluminum-frame sliding glass doors and early double-pane windows. Those originals are visibly corroding and thermally inadequate, and in Oceana homes especially, the hidden rot problem runs deep: salt-fog wicks behind original aluminum sliders over decades, and the damage in the OSB and redwood framing is often invisible until demolition starts. Contractors who size replacements to exact original rough openings here routinely uncover framing repairs they did not plan for, which is why we price Half Moon Bay jobs with that reality built in from the first visit.
Our Main Half Moon Bay Services
The three services Half Moon Bay homeowners call us about most are window replacement, new-construction window installation, and entry or patio door installation. Each has its own page for this city, because each one hits different parts of the house and carries different coastal-code and product considerations.
Window Replacement in Half Moon Bay
Replacing existing windows in Half Moon Bay usually means pulling corroded aluminum or rotted wood frames out of openings that have been absorbing salt fog for decades. The right replacement here is rarely a like-for-like swap: most homes need marine-grade frames, stainless-steel hardware, and multi-pane low-e glass to hold up against the marine air. See our Window Replacement in Half Moon Bay page for local pricing and what a typical Oceana or Spanishtown replacement involves.

Window Installation in Half Moon Bay
New window installation in Half Moon Bay covers additions, remodels, and new builds where the openings are being framed fresh. That means the flashing, water-resistant barrier, and rough-opening details can be done correctly from day one rather than corrected after the fact, which matters more here than almost anywhere else in the Bay Area. See our Window Installation in Half Moon Bay page for how we approach coastal new construction and what it costs.

Door Installation in Half Moon Bay
Door installation in Half Moon Bay is where the salt air does some of its most visible damage. Entry doors facing the ocean take direct wet fog for hundreds of hours a year, and sliding patio doors in Oceana homes are frequently the original aluminum units, now noisy, pitted, and thermally useless. Fiberglass and clad-wood doors with stainless hardware are the practical choice here. See our Door Installation in Half Moon Bay page for options and pricing specific to this coast.

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 Half Moon Bay
We carry eight manufacturer lines and stock the ones that matter most for this coastline: PGT and CGI impact-rated products, ECO Window Systems energy-efficient frames, and Therma-Tru entry doors. In Half Moon Bay we keep common coastal-mandated parts on hand, which keeps turnaround on repairs and replacements shorter than ordering from a distributor. See our brands for the full list.
Pricing for Window Company in Half Moon Bay, CA
| Service | Typical range in Half Moon Bay |
|---|---|
| Single window replacement | $800-$1,600 installed |
| Double-pane window replacement | $900-$2,100 per window |
| Bay window replacement | $2,500-$5,500 installed |
| Patio sliding glass door replacement | $1,800-$4,200 installed |
| French door replacement | $2,200-$4,800 installed |
| Front entry door replacement | $1,500-$3,800 installed |
| Window glass replacement | $350-$850 per pane |
| Window frame repair | $400-$1,200 per window |
| Marine-grade hardware upgrade | $250-$600 per unit |
What pushes a Half Moon Bay price toward the higher end of these ranges is almost always framing: hidden rot around old aluminum sliders in Oceana and Victorian-era homes in Spanishtown requires opening up more of the wall than a standard replacement. Every estimate we hand you is a written price before any work starts, and it does not change at the door.
Neighborhoods We Serve in Half Moon Bay
We work across Half Moon Bay, from the historic downtown grid to the south-end tract communities and the smaller residential pockets in between. Most of our Half Moon Bay calls come from:
- Spanishtown and the historic downtown core
- Oceana and the south-end planned community
- Arleta Park
- Frenchmans Creek
- Miramar and the coastal bluff streets
Response time across Half Moon Bay is typically within one business day for estimates, and the same for scheduling once you approve your written quote.
Service Area – Cities Near Half Moon Bay
Our Half Moon Bay crews also serve the surrounding mid-peninsula and coastside communities. If you’re in El Granada, CA, Burlingame, CA, Millbrae, CA, or Belmont, CA, the same coastal pricing and product guidance applies, adjusted for your home’s exposure and age.
Serving Half Moon Bay, CA - Our Local Coverage Area
We’re based in the Half Moon Bay 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 Half Moon Bay
Yes. Window and door replacement in Half Moon Bay generally requires a building permit, and we handle the permit application, the inspection scheduling, and any corrections the city asks for. The permit cost is included in your written estimate, not added later. Call (903) 354-7134 if you want specifics on your project.
Some Half Moon Bay homeowners associations, particularly in planned communities on the south end, have architectural review requirements for window and door changes. We prepare the spec sheets and product drawings your HOA will ask for, and we coordinate the review as part of the estimate process. Bring us your HOA’s guidelines and we’ll match the product to them.
We typically schedule estimates within one business day of your call. The appointment includes the measurement visit, a conversation about your home’s exposure and framing condition, and a written quote delivered before any work is approved. Call (903) 354-7134 to get on the schedule.
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 Half Moon Bay 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










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