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 San Mateo, CA
Window and door work in San Mateo comes down to three things: aging housing stock, coastal air, and the geometry of the Peninsula. Most homes here were built between the 1940s and 1970s, which means original single-pane sashes, wood frames that have been soaking up marine moisture for fifty years, and door openings that were never square to begin with. Add in the morning fog rolling off the Bay and the salt breeze coming up from the Pacific, and you get a specific set of failure patterns we see across San Mateo: swelling, sticking sashes, fogged glass, and entry doors that don’t seal. We’re Juniper Windows & Doors, part of the Relay Home Co. family since 2001. Every San Mateo job gets a written price before work starts, a live arrival time, and photo updates as the job moves. Call (682) 281-2168 for a free estimate.
Why San Mateo Homes Are Different
Marine air is the quiet constant here. Homes west of El Camino Real, in neighborhoods like Baywood and Aragon, sit close enough to the water that aluminum window frames oxidize faster and unsealed wood doors pick up moisture you can feel in the hinges. Homes north of the 92, around North Central and Shoreview, tend to be smaller postwar bungalows with original single-pane windows that run about 40 percent less efficient than a modern double-pane unit. Homes up in the San Mateo Highlands and Clearview, on the hillside lots that face the Bay, get real wind exposure: a west-facing window up there takes far more pressure than one tucked into a downtown San Mateo lot. Hillside lots also mean steeper approaches, more equipment handling, and the need to flash windows and doors correctly the first time. Sean Mackey and our installers plan for all of that before the job starts. Several San Mateo HOAs, including those in the larger master-planned pockets, require architectural review for front-facing changes, and we’ll help you put together the spec details boards ask for.
Our Main San Mateo Services
San Mateo homeowners call us most for two things: pulling out old windows that don’t open anymore, and replacing doors that don’t seal. Each service has its own dedicated San Mateo page with detailed pricing and what to expect.
Window Replacement in San Mateo
Most replacement jobs in San Mateo involve removing original wood or aluminum sashes and putting in new framed units with updated glass. The biggest local variable is what’s behind the old frame: some San Mateo homes have intact rough openings, others have dry rot after decades of fog and rain. We inspect the opening before we quote, write the price, and don’t change it once work begins. You’ll get before-and-after photos and a live arrival time through the Relay Visibility Guarantee. See typical San Mateo pricing and timelines on our Window Replacement in San Mateo page.
Window Installation in San Mateo
Window installation in San Mateo usually means new-construction or major renovation work: no existing unit to pull, a fresh rough opening, new flashing, and a window set tight into an exterior that will face decades of Bay wind. It’s the right service when walls are open, a room addition is going up, or an old window opening is being enlarged. We flash and seal for marine exposure, and we set the frame level on older San Mateo foundations that have settled out of square. Details are on our Window Installation in San Mateo page.
Door Replacement in San Mateo
Door replacement in San Mateo covers entry doors, back doors, and patio sliders, and the recurring issue is the same: a door that once sealed a 1962 opening now lets daylight around the jamb because the house has settled and the weatherstripping is shot. We swap the slab or the entire pre-hung unit, depending on what the opening will support, and we set the threshold so it actually meets the bottom sweep. Coastal moisture is harder on doors here than heat is. Read more on our Door Replacement in San Mateo page.
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 San Mateo
We work with eight product lines, and for San Mateo homes we most often spec PGT impact-rated windows, Therma-Tru entry doors, and ViewLux glass packages. PGT and CGI units handle wind exposure in the Highlands; CWS aluminum frames suit mid-century homes. We stock common replacement parts locally and can order full units in about two to three weeks. Choose from the full our brands catalog during your estimate.
Pricing for Window Company in San Mateo, CA
| Service | Typical range in San Mateo |
|---|---|
| Window replacement (per window, standard double-hung) | $540 – $1,300 |
| Window replacement (per window, casement or specialty shape) | $900 – $2,400 |
| Window installation (new construction, per standard window) | $700 – $1,900 |
| Door replacement (interior slab, per door) | $350 – $900 |
| Door replacement (front entry, pre-hung steel or fiberglass) | $1,900 – $4,200 |
| Patio sliding door replacement | $1,700 – $4,100 |
| French door or multi-panel exterior door replacement | $2,600 – $6,300 |
| Full-frame window replacement (per window, including trim | $800 – $2,000 |
| Dual-pane glass replacement (per pane | $250 – $650 |
Prices in San Mateo climb when the opening needs reframing, when rot is present, or when HOA review forces a specific finish or brand. Whatever the number is, you get it in writing before anything starts, and it doesn’t move at the door.
Neighborhoods We Serve in San Mateo
We work across San Mateo, from the flatlands to the hillsides. Response times are usually same-week; we’ll give you a live arrival time the day before the job and you can track it from your phone.
- Baywood
- Aragon
- San Mateo Highlands
- North Central
- Shoreview
Service Area – Cities Near San Mateo
If you’re just outside San Mateo, we also work in Burlingame, CA to the north, Belmont, CA to the south, and Millbrae, CA right up the 101. Over the hill, San Carlos, CA homeowners call us for the same marine-wear window and door work. Every job in every city gets the same written-price standard.
Serving San Mateo, CA - Our Local Coverage Area
We’re based in the San Mateo 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 San Mateo
Most San Mateo estimates happen within three to five business days. We give you a live arrival time you can track from your phone, and the estimate is free. Call (682) 281-2168 to get on the schedule.
Many do, especially for front-facing exterior changes. We’ll help with the spec sheet: dimensions, finish, sometimes an impact-rating requirement. Getting approval before we order materials avoids install-day surprises.
Yes. Hillside lots in the Highlands and Clearview need extra care with flashing and drainage because water moves downhill and wind hits those exposures harder. We quote that work the same way: written price, no change orders. Call (682) 281-2168 for an exact quote on your property.
To schedule a free estimate, call Juniper Windows & Doors at (682) 281-2168. We’ll give you a written price for your San Mateo windows or doors, a live arrival time, and the 365-Day Done Right Promise covering parts and labor for a full year after installation.
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 San Mateo Customers Say
"Front door looks great and shuts well. The threshold is sealed well and the lock lines up with the strike."
- Rory F."Quote came in the app with options for glass. Easy to compare."
- Vera L."Door replacement. Installer texted when on his way and finished by lunch. Tight and clean."
- Neil B.