Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Before
After
Before
After
Before
AfterWindow Company in Montclair, CA
Window and door work in Montclair, CA comes down to three things: afternoon heat, older housing stock, and the Santa Ana winds that push hard against west-facing openings every fall. Whether you’re swapping out single-pane aluminum sliders on a 1970s ranch or replacing a patio door in a newer build near the Montclair Plaza, the job has to hold up to real temperature swings and real wind. That’s the work we do at Juniper Windows & Doors. Call us at (682) 281-2168 and we’ll give you a written price before anything gets ordered.
Why Montclair Homes Are Different
Montclair sits in the Pomona Valley, which means summers are hot and dry, winters cool off at night, and the wind can arrive suddenly. Homes here were built in waves: a lot of the original stock from the 1950s and 60s, then steady infill through the 1980s and 90s. That older housing means things like wood frame windows with worn sashes, patio doors that don’t track anymore, and glazing that was fine when U-factor wasn’t a word anyone knew. In the neighborhoods around Mission Boulevard and Holt Avenue, we regularly see west-facing windows with sun-bleached frames and seals that gave out years ago.
The city’s compact grid also means many homes sit on modest lots, so we’re often working in tight side yards or on second-story windows that take extra ladder work. Montclair doesn’t overload homeowners with a local historic-district board, but standard city building permits do apply when the opening changes size or a door moves to a different wall. We pull those permits and the work gets inspected. It’s part of the written price, same as the glass and the hardware.
Our Main Montclair Services
Most Montclair homeowners call us for one of three jobs: replacing windows that leak air, installing new windows as part of a larger renovation, or swapping an entry or patio door. Each service has its own Montclair page with pricing and specifics; here’s what matters at a glance.
Window Replacement in Montclair
Old windows in Montclair tend to fail in predictable ways: fogged glass, sticking tracks, and glazing putty that’s crumbling out of the frame. Window Replacement in Montclair covers full frame swaps and pocket replacements where the existing opening stays intact. In older Montclair neighborhoods, we often recommend full-frame work when the original flange is warped or there’s hidden rot around the rough opening. You get a written price covering materials, labor, permits when needed, and disposal of the old windows. We carry PGT and CWS lines for the heat and wind conditions here.
Window Installation in Montclair
New construction and additions need windows installed into fresh rough openings, which is a different discipline than replacement work. Window Installation in Montclair covers new builds, room additions, and garage conversions across the city. Proper flashing matters more in Montclair because of the dry-then-wet cycle: winters bring rain, summers bring intense sun, and a poorly flashed window shows itself fast. Our installers back-flash, sill-pan, and tape every new opening before the window goes in. Everything gets a written quote and the 365-Day Done Right Promise.
Door Replacement in Montclair
Front doors, patio sliders, and French doors all take a beating in Montclair heat. Door Replacement in Montclair handles everything from a single entry door to a full sliding-glass replacement. We see a lot of patio doors with tracks full of grit from dry landscaping and rollers that have worn flat. A new Therma-Tru entry door or a CWS slider makes an immediate difference in both temperature stability and how the house feels when you walk through the door. We measure, order, install, and remove the old unit, all in writing.
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 Montclair
We service and install products from PGT, CGI, CWS, ViewLux, and Therma-Tru. Montclair jobs routinely involve PGT impact-rated windows and Therma-Tru entry doors, and we keep the most common components in local stock so a replacement part doesn’t leave a hole in the wall for weeks. See our brands for the full lineup.
Pricing for Window Company in Montclair, CA
Here’s what Montclair homeowners typically see, based on the jobs we’ve quoted in this market. These are installed prices with materials included.
| Service | Typical range in Montclair |
|---|---|
| Single window replacement (standard size, vinyl or aluminum) | $600 – $1,150 per window |
| Single window replacement (wood or fiberglass) | $1,100 – $2,200 per window |
| Standard patio door replacement (sliding glass) | $1,800 – $3,400 per door |
| Entry door replacement (steel or fiberglass, standard size) | $1,400 – $2,800 per door |
| New construction window installation (per opening, standard size) | $400 – $850 per opening |
| Full-frame window replacement (including interior trim) | $850 – $1,800 per window |
| Pocket window replacement (glass and sash only, existing frame) | $500 – $950 per window |
| French door replacement (pair, standard width) | $2,200 – $4,500 per pair |
| Custom-shaped or oversized window (fixed or picture) | $1,300 – $3,000 per window |
| Garage door side-lite or transom installation | $700 – $1,500 per unit |
Prices in Montclair move with a few things: second-story access that requires scaffolding, stucco repair around the opening, and custom sizing on older homes with non-standard rough openings. Whatever the scope, the number we write down for you is the number you pay. Nobody adjusts it at the door.
Neighborhoods We Serve in Montclair
We work throughout Montclair, from the neighborhoods north of the 10 toward the hills, to the streets around Moreno and State, and down toward the Ontario line. Response across the city is typically same-week for scheduling and same-day for quote requests.
- North Montclair, near Arrow Highway
- Downtown, around Holt Avenue and Mission Boulevard
- Montclair Plaza area
- The Kingsley Street corridor
- South Montclair, near the Pomona border
Service Area – Cities Near Montclair
Beyond Montclair, our crews regularly work in Claremont, CA, Ontario, CA, Pomona, CA, and La Verne, CA. If you live along the Montclair border with any of those cities, call us and we’ll confirm coverage. Scheduling is coordinated from our Inland Empire office, and crews serve the Montclair area directly.
Serving Montclair, CA - Our Local Coverage Area
We’re based in the Montclair 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 Montclair
Most Montclair jobs can be scheduled within the same week, depending on product lead time. Standard windows and doors are often in stock at our local supplier; custom sizes from PGT or CWS typically add two to four weeks. Call (682) 281-2168 and we’ll give you a specific timeline with your written quote.
For like-for-like replacements where the opening stays the same size, Montclair generally doesn’t require a building permit. If the opening changes, a wall is modified, or a door moves, a permit is required and the work gets inspected. We pull permits as part of the written price, so there’s no separate surprise line item. Call (682) 281-2168 with your specific scope and we’ll confirm what your project needs.
Some Montclair HOAs restrict window frame colors, muntin patterns, or door styles. Before we order anything, we’ll work from your HOA’s design guidelines and make sure the product we quote matches what’s approved. We don’t treat HOA rules as an afterthought; they get checked at the start so you don’t end up re-ordering. Call (682) 281-2168 if you’re unsure what your association allows.
Get a free written estimate for any window or door project in Montclair. Call (682) 281-2168 and a live person answers, 24/7. We’ll lock your price in writing before any work starts, and every installation is covered by the 365-Day Done Right Promise. Led by Sean Mackey, Juniper Windows & Doors is part of the Relay Home Co. family, and the Montclair team answers to one standard: the number on the page is the number you pay.
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 Montclair 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.