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 Florida homeowners arrive naming - the most Miami-Dade certifications in the industry$$$
- More Miami-Dade NOA certifications than any other line we quote
- WinGuard, EnergyVue and ClassicVue Max systems built for every wind zone
- 99% on-time delivery keeps your install date on the calendar
CGIThe heavyweight impact line$$$$$
- Large-missile impact ratings for the strictest wind zones
- Architectural-grade aluminum with commercial-depth frames
- The line we quote when protection is the whole point
CWSThe Florida value pick$$
- Vinyl systems built in Florida for Florida codes
- Strong energy packages at the friendliest price point
- The smart start for whole-home replacements on a budget
ESWSlim lines, big glass$$$$
- Narrow-sightline aluminum for modern elevations
- Oversized openings and floor-to-ceiling glass
- Impact-rated without the bunker look
ECOThe aluminum impact workhorse$$$
- Miami-built aluminum impact systems
- A strong price-to-protection ratio for coastal homes
- Proven inventory lines with short lead times
Fast, Reliable Door Installation Across Los Altos
Door installation in Los Altos comes with a set of rules most contractors never mention until the inspector shows up. Design review approval, Eichler sightline requirements, and permit-triggered code upgrades are part of the job here, not exceptions to it. Our crews work Los Altos neighborhoods every week, from Country Club to North Los Altos to the ranch homes off Foothill Expressway, so we know what the planning department expects before we touch a single hinge. If you’re planning a front door, patio slider, or full exterior door replacement in Los Altos, call (669) 333-7786 for a free estimate and a written price before any work starts.
Why Westlight Windows San Jose Is Los Altos’s Preferred Door Installation Company
We’ve been installing doors in Los Altos long enough to know that every neighborhood has its own rhythm. The mid-century homes off El Monte Road need different handling than the newer builds near Rancho San Antonio Open Space Preserve. Our Door Installation team carries eight manufacturer lines, including Therma-Tru entry doors and PGT impact-rated sliders, so we can match the exact stile width and sightline a Los Altos design review board wants to see.
Owen Satterfield, who leads our crews, has walked more Los Altos door openings than he can count, and he’s the one who signs off on every written quote. When you call, a live person answers. Not a voicemail box. Not a chatbot. Someone who can schedule your free estimate, talk through design review concerns, and get a technician to your Los Altos home on the day we said we’d be there.
Reviews from Los Altos customers consistently mention the same things: we showed up in the window we gave, we left the site cleaner than we found it, and we put every promise in writing. That’s the Kingswell Guarantee, and it applies to every single job in Los Altos. Written price before work starts. Real arrival window. Clean job site. Written guarantee at completion. If the work fails within the guarantee period, we come back and fix it at no charge. No phone tag. No negotiation.
Door Repair in Los Altos
Door Repair in Los Altos usually means one of three things: a slider that’s dragging on its track, a front entry door that’s sagging or sticking, or a threshold that’s letting water seep into the subfloor. Original Eichler sliders and 1950s ranch doors are the most common calls we get, and the fix often runs $180 – $540 depending on whether we’re replacing rollers, rehanging the slab, or rebuilding a rotted jamb. Los Altos homes with original aluminum frames tend to have hidden corrosion behind the trim, so we always inspect the rough opening before quoting the repair.
Slider Track and Roller Work
When a heavy glass slider starts grinding, the rollers are usually shot. On Eichler doors, the original roller housings are often discontinued, so we retrofit new stainless rollers into the existing track rather than tearing out the frame. That keeps the mid-century sightline intact and saves you a design review headache. Typical cost: $200 – $480.
Jamb and Threshold Repair
A soft spot at the bottom of the jamb means water’s been getting in for a while. We cut out the rot, replace the affected framing, install a proper sill pan and flashing, and set the door back plumb. Skipping the sill pan is how Los Altos homeowners end up with the same leak two winters later. Jamb rebuilds run $400 – $900 depending on how far the rot traveled.
Exterior Door Installation in Los Altos
Exterior Door Installation in Los Altos typically runs $2,800 – $7,500 for a standard single entry door, and $4,500 – $12,000 for a sliding patio door or French double door, including the permit and any code-triggered structural work. The range is wider here than in most Bay Area cities because Los Altos design review boards often require custom sizing, specific stile profiles, or materials that match the original home. If your home is mid-century or Eichler, expect the higher end of that range, because off-the-shelf doors won’t pass review.
Front Entry Doors
A new front door in Los Altos has to do three jobs: match the neighborhood’s architectural character, seal against winter storms and summer heat, and open smoothly for decades. We install Therma-Tru and ViewLux entry doors most often because they offer custom sizing and finish options that satisfy design review boards. A solid wood look with modern insulation gets approved faster than a style that fights the house.
Sliding and French Doors
When a Los Altos patio slider fails, it’s rarely just the door. The original waterproofing under the threshold has usually failed too, and the rim joist below may be soft. Our exterior door installation process includes cutting back the old flashing, repairing any rotted framing, and installing a thermally broken aluminum or impact-rated slider that matches the original stile width. French double doors work well on ranches and newer builds, but we always check the header span first, especially on post-and-beam Eichlers where the load path matters.
Trusted Brands We Service in Los Altos
We stock and install doors from Therma-Tru, ViewLux, PGT, and Mr-Glass, which means your Los Altos project isn’t held hostage by a single manufacturer’s lead time. Therma-Tru entry doors give us the widest range of custom sizing and finish options for design review. PGT covers impact-rated sliding doors, which Los Altos homeowners on exposed lots sometimes choose for storm season. Mr-Glass handles custom aluminum work that matches Eichler original frames. Door Installation in Los Altos moves faster when the right product is already on our shelf, and we keep common replacement parts local so repairs don’t wait on a freight truck.
Common Door Installation Problems We See in Los Altos Homes
- Permit-triggered wiring and framing upgrades. Opening up an exterior wall on an older Los Altos home often triggers code requirements for grounding, AFCI breakers, or shear-wall upgrades. If your contractor doesn’t pre-scope this, the change order lands after the wall is open. We inspect first and write allowances into the contract so the price doesn’t move unexpectedly.
- Non-standard Eichler door openings. Original Eichler door openings are sized to a mid-century grid, not a modern standard. Off-the-shelf replacements leave unsightly infill or violate the design review setback for the original stile width. We order custom-sized slabs and frames that sit exactly where the original door sat.
- Failed threshold waterproofing. On 1950s and 60s ranches, the sill pan and flashing under the door often degrade decades before the door itself fails. Replacing the door alone without addressing the sill pan and flashing leads to repeat leaks within two seasons. We treat every exterior door replacement as a waterproofing project, not just a swap.
- Header reinforcement on post-and-beam homes. Eichlers and many mid-century Los Altos homes use post-and-beam construction, so removing a door frame can compromise the header span. When we replaced an original sliding patio door on an Eichler in the Country Club neighborhood, the jamb had rot hidden behind aluminum trim and the post-and-beam header needed a steel reinforcement plate before we could set the new impact-rated glazing. We cut back the failed waterproofing, installed a custom-sized thermally broken aluminum slider that matched the narrow stile profile, and the project passed design review without comment.
Pricing for Door Installation in Los Altos, CA
Here’s what you can expect to pay for door work in Los Altos. Entry door replacement: $2,800 – $7,500 installed. Sliding patio door or French double door: $4,500 – $12,000 installed. Door repair, including rollers, rehanging, or jamb rebuild: $180 – $900. These ranges include the door, labor, finish trim, and typical Los Altos permit costs. What moves the price within the range is the condition of the rough opening, whether design review requires custom sizing, and any code-triggered electrical or structural work. You’ll get a written line-item quote before any work begins, and that price doesn’t change at the door. Call (669) 333-7786 for your free estimate.
We Also Serve Cities Near Los Altos
Our crews cover Los Altos and the surrounding communities including Mountain View, Stanford, Menlo Park, and Sunnyvale. If you’re in one of these nearby cities facing a door replacement or repair, we bring the same written pricing, design review knowledge, and Kingswell Guarantee to the job. Call (669) 333-7786 to schedule.
Serving Los Altos, CA - Our Local Coverage Area
We’re based in the Los Altos 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 Door Installation in Los Altos
Yes, in many Los Altos neighborhoods, exterior door changes require design review approval, especially for mid-century modern and Eichler homes. The review board evaluates whether the new door matches the original sightlines, stile widths, and materials. We prepare the documentation and specifications the board wants to see, and our custom door orders are built to satisfy those requirements before the permit is submitted. Call (669) 333-7786 and we’ll check whether your specific street triggers design review.
Expect rot behind the aluminum trim, failed threshold waterproofing, and possibly a header that needs reinforcement on post-and-beam construction. On Eichlers, the rough opening is usually a non-standard size, which means a custom door. We pre-scope all of this before quoting, and any code upgrades get written into the contract as allowances, not surprise change orders. Estimates are free, so call (669) 333-7786 and we’ll inspect the opening properly.
Yes, we’ve done it many times in Los Altos, including the Country Club neighborhood. The key is a custom-sized thermally broken aluminum slider with narrow stiles that match the original profile. Design review boards in Los Altos often mandate this exact approach. We’ve also added steel reinforcement plates to headers when the post-and-beam frame needed it, and the projects passed review without comment. Call (669) 333-7786 to talk through your Eichler’s specific opening.
We cut back the rotted material to solid wood, replace the damaged jamb and any affected rim joist or subfloor, install a new sill pan and flashing, and then set the new door plumb and sealed. This is a common repair on 1950s Los Altos ranches where the original waterproofing failed years ago. The work runs $400 – $900 for the framing repair, plus the cost of the new door if it’s being replaced. Call (669) 333-7786 for an exact quote.
Thermally broken aluminum and fiberglass entry doors hold up best in Los Altos. The Mediterranean climate means heat gain and UV exposure matter more than extreme cold, so we recommend low-e glazing on any door with glass panels and weather stripping rated for winter storm sealing. Fiberglass entry doors from Therma-Tru resist warping better than solid wood under Los Altos’s dry summer heat. Call (669) 333-7786 and we’ll match the material to your home’s orientation and exposure.
Call Westlight Windows San Jose at (669) 333-7786 for your free door installation estimate in Los Altos. You’ll get a written price before any work starts, a real arrival window, and the Kingswell Guarantee in writing. Owen Satterfield and our Los Altos crews are ready to make your door project right.
Written by Owen Satterfield, Owner at Westlight Windows San Jose, serving Los Altos with door installation and repair.
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.