New windows and doors improve comfort, cut energy bills and add long-term value to your home. Westlight Windows San Jose pairs proven product lines with our own installing crews for lasting performance - and a price we put in writing.
Choose your installer
The unit is half the job - the install is the other half. Our own background-checked crews measure, set, seal and insulate every opening, and they know the lines we quote inside and out because they install them every week.
Select the right products
Compare styles, materials and glass packages side by side until the fit is right for your rooms, your budget and your goals. The product-line comparison below is the place to start.
Prepare your home for install
Before install day we walk you through a short checklist - furniture pulled back, treatments down, a clear path to each opening - so install day is watch-it-happen, not scramble.
Compare the Lines We Quote
Every project is priced on the same lines, side by side - the price indicators below are relative, and your consultant shows exact numbers on your actual openings.
PGTThe line homeowners arrive naming - the most impact certifications in the industry$$$
- More impact certifications than any other line we quote
- WinGuard, EnergyVue and ClassicVue Max systems built for every wind zone
- 99% on-time delivery keeps your install date on the calendar
CGIThe heavyweight impact line$$$$$
- Large-missile impact ratings for the strictest wind zones
- Architectural-grade aluminum with commercial-depth frames
- The line we quote when protection is the whole point
CWSThe value pick$$
- Vinyl systems built to strict wind codes
- Strong energy packages at the friendliest price point
- The smart start for whole-home replacements on a budget
ESWSlim lines, big glass$$$$
- Narrow-sightline aluminum for modern elevations
- Oversized openings and floor-to-ceiling glass
- Impact-rated without the bunker look
ECOThe aluminum impact workhorse$$$
- Factory-built aluminum impact systems
- A strong price-to-protection ratio for coastal homes
- Proven inventory lines with short lead times
Mr-Glass Windows & Doors in Mountain View, CA | Westlight Windows San Jose
Westlight Windows San Jose provides independent Mr-Glass repair, retrofit, and Window Replacement in Mountain View service across the area. We are not a manufacturer-authorized shop and never have been. What that means for you: we make repair-versus-replace calls based on what the frame actually needs, not what a brand program tells us to sell. If you own a mid-century Mountain View home with original Mr-Glass aluminum windows or a 3-lite slider, call (669) 333-7786 for a straight answer and a written estimate.
Why Mountain View Residents Choose Us for Mr-Glass Service
We know the Mr-Glass product line from the inside of the frame outward. The 200 Series single-hung, the 400 Series horizontal slider, the 800 Series 3-lite rolling door, the 600 Series casement: we’ve rebuilt every one of them in this town, and we know where each model tends to fail. Owen Satterfield, our owner, has spent the better part of two decades installing and replacing windows and doors across the South Bay, and he started in the trade because the work is measurable: a frame either fits square or it doesn’t, and a customer either feels the draft or they don’t. That’s the lens we bring to every Mr-Glass service call in Mountain View.
You get real Mr-Glass familiarity, OEM-compatible parts when they’ll outlast aftermarket, and a crew that understands Mountain View housing. You also get the Kingswell Guarantee on every job: a written price before any work starts, a committed arrival window, a clean job site, and a written guarantee on the completed work. Learn more about our Mr-Glass sales & service approach.
Common Mr-Glass Windows & Doors Problems We Solve in Mountain View
- Seized rollers on 800 Series 3-lite sliding doors. The original steel bearings inside these rollers corrode after decades of fog-belt moisture, and once they bind, the door snaps the track or won’t move at all. In Monta Loma and Rex Manor, where the marine layer rolls in most evenings, this is the single most common Mr-Glass repair we do. We mill out the corroded bearings, install stainless rollers with sealed tracks, and get the door gliding again. Replacement only comes up if the track itself is deformed.
- Fogged glass on 200 Series single-hungs. Morning condensation works its way into the thermal break adhesive at the aluminum frame corners. Once that seal separates, you get interior frost, visible fog between the panes, and a window that no longer insulates. We replace the failed insulated glass unit and re-seal the frame, preserving the original window rather than selling you a full replacement you may not need.
- Uneven sashes on 400 Series sliders. The vinyl balance springs in these windows fatigue after 30-plus years of Mountain View’s cool, damp evenings. One side drops, the sash scrapes the track, and eventually it jams. We replace the balance springs with precision-milled kits that match the original profile, so the window opens and closes level again.
- Brittle weatherstripping on casement and awning windows. Long dry summers followed by damp fog seasons bake and crack the original seals. In Eichler homes with open-plan living areas, that means evening marine-layer air leaks straight into the house. We install new weatherseal matched to the original frame dimensions, cutting the draft and the condensation in one pass.
- Cold-air bleed on original single-pane setups. Single-pane aluminum frames were never designed for overnight fog condensation, and in Mountain View they radiate cold directly into the living space. We routinely retrofit these with dual-pane low-E inserts that preserve the original frame profile and sightlines while stopping the chill.
Mr-Glass Service in Mountain View: What Local Conditions Mean for Your Equipment
Here’s the thing about Mr-Glass windows and doors in this particular city: Mountain View’s mix of mid-century Eichler and ranch homes, many with original single-pane aluminum windows, sits squarely in a marine-influenced climate that attacks these frames a very specific way. The fog rolls in off the bay almost every evening, condenses on the single-pane glass, and drips down into the aluminum frame channels. Over decades, that constant moisture cycle corrodes roller bearings, breaks down thermal seal adhesive, and makes homes feel ten degrees cooler at night than the thermometer outside would suggest. In the Monta Loma and Rex Manor tracts specifically, you can still find hundreds of original Mr-Glass 3-lite sliding doors with thin frames that were never designed for this. We routinely rebuild roller tracks and upgrade to dual-pane inserts that preserve the slender sightlines while stopping the cold-air bleed. That specific problem, at that specific scale, doesn’t exist in Sunnyvale or Cupertino the same way, because those cities have proportionally fewer of these original mid-century aluminum installations. Mountain View has them in concentration.
Mr-Glass Models & Products We Service in Mountain View
We service the Mr-Glass 200 Series single-hung, the 400 Series horizontal slider, the 600 Series casement, and the 800 Series 3-lite rolling door. Whenever OEM Mr-Glass parts are available and will outlast alternatives, we install them. When they aren’t, we use precision-milled aftermarket roller kits, balance springs, and weatherseal cut to match the original frame tolerances. We stock common parts for these four model lines locally, which means faster turnaround for Mountain View service calls. We recommend full replacement only when the frame itself has corroded or lost its thermal isolation completely. Our full-frame replacement, energy-efficient upgrade, and Window Installation - Mountain View work all carries the same Kingswell Guarantee: written price first, written guarantee on completion.
Mr-Glass Service Pricing in Mountain View
Mr-Glass service costs in Mountain View vary by the job. Rebuilding a seized 3-lite slider roller assembly typically runs $180 to $420 per panel, depending on how many rollers are seized and whether the track needs milling. Replacing a failed insulated glass unit in a 200 Series single-hung starts around $220 and goes up with glass size and low-E specification. Balance spring replacement on a 400 Series slider normally lands between $150 and $300 per sash. Dual-pane retrofits on original single-pane Mr-Glass frames in Mountain View run higher because we match the new insulated glass to the original thin-frame profile, and that’s a custom-cut job. Every estimate is free and written in line-item detail before any work begins. Call (669) 333-7786 and we’ll walk you through what your repair will actually cost.
Serving Mountain View, CA - Our Local Coverage Area
We’re based in the Mountain View 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 – Mr-Glass Windows & Doors in Mountain View
Yes. We rebuild the original frame in place. The rollers, track, and weatherseal get replaced, but the slender aluminum profile stays exactly as it was when the house was built. We’ve done this dozens of times in Rex Manor and Monta Loma.
Yes. The frost means the insulated glass unit has lost its seal and the thermal break adhesive at the frame corners has failed. We replace the glass unit and re-seal the frame. It’s a repair, not a full window replacement, and it costs less than you’d expect. Call (669) 333-7786 for a specific number.
We do. Eichler construction uses non-structural window frames set into post-and-beam openings, so we replace the window without touching the structural posts or beams. Our crew has worked on enough Eichlers in Mountain View to know exactly where the frame ends and the structure begins.
The balance springs have fatigued. We replace them with precision-milled springs matched to the original profile, then re-align the sash. The window opens level afterward. On cool evenings, the vinyl frame contracts slightly, which is why the scrape only shows up then, but the spring replacement fixes it year-round.
Yes. We install dual-pane low-E inserts into the existing Mr-Glass frames, which meets current energy standards while keeping the original sightlines and frame profile. The slender aluminum look stays. The single-pane chill goes away. Call (669) 333-7786 for a free estimate on your specific windows.
Service Areas Near Mountain View
Our crews serve Mountain View and the surrounding cities, including Sunnyvale, Cupertino, Woodside, the wider Mountain View service area, and the neighboring communities of Mr-Glass service in San Jose and Mr-Glass service in Fremont. If you’re on the edge of town, call and ask; we probably still cover it.
Book Your Mr-Glass Service in Mountain View Today
Call (669) 333-7786 to schedule your free estimate. We’ll look at your Mr-Glass windows or doors, tell you what’s actually wrong, and hand you a written price before anything starts. Owen and the crew answer the phone, not a voicemail box.
Written by Owen Satterfield, Owner at Westlight Windows San Jose, serving Mountain View since 2009.
Six Reasons Homeowners Choose Westlight Windows San Jose
Laminated glass and reinforced frames hold up to wind-driven rain, hail and flying debris, so your openings stay sealed when the weather turns.
Low-E insulated impact glass from our manufacturer lines commonly cuts monthly cooling bills 20-30%.
Laminated impact glass shuts out up to 40% of outside noise - traffic, neighbors, weather.
Monitoring services run $30-90 a month. Laminated impact glass resists forced entry around the clock, with no subscription.
Tighter seals and insulated glass even out hot and cold rooms and stop the drafts at the frame.
A full impact package upgrades curb appeal, buyer confidence and appraised value in one project.