Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
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AfterFast, Reliable Door Installation Across Los Altos
Door installation in Los Altos, CA typically costs $2,800-$11,500 depending on the door type, material, and whether Title 24 documentation is required. Most standard entry door replacements run $2,800-$5,200, while custom fiberglass or wood-clad units with architect coordination land between $6,500-$11,500. Sightline Windows & Doors has installed doors across Los Altos neighborhoods from the Woodland Acres flats to the hillside lots off Page Mill Road, and we know this housing stock. Original 1960s aluminum sliders and single-pane entry doors dominate the ranch homes here, and we’ve seen exactly how Los Altos’s alkaline soil and morning marine layer accelerate their failure. That local knowledge means we don’t show up guessing. Call (509) 265-6387 to schedule a measured survey and get your written price before any work starts.
Why Sightline Windows & Doors Is Los Altos’s Preferred Door Installation Company
Los Altos homeowners research before they call. They read the three-star reviews, they want the price named on the page, and they want documentation they can hold. We operate the same way. Our Door Installation process starts with a measured survey you keep. The written quote and that survey are the same document, per Haven Clause 1. No verbal estimate, no revision after the fact.
We replaced a corroded 8-foot original aluminum slider at a 1962 ranch on Jardin Drive with a custom fiberglass Therma-Tru unit about eighteen months ago. The original track had fused to the concrete threshold, the rollers were long discontinued, and the sills were rotted in two places that only became visible after we pulled the frame. We set a new treated jamb, matched the home’s low-profile stucco reveal, and coordinated the insulated low-E glass package with the architect’s Title 24 documentation. The client pre-ordered 14 weeks out because the lead time on the door set the calendar, not our labor. That’s how it works in Los Altos.
Every Sightline technician is background-checked, uniformed, and identified by license number before arrival. You’ll know who’s at your door before they ring the bell. And every job leaves a documented photo record when it’s finished. That’s Haven Clause 4: Evidence on every job.
Our Door Installation Services in Los Altos
Entry Doors
A new entry door on a Los Altos ranch is rarely just a door swap. The original units are typically hollow-core or thin aluminum-frame doors, and the surrounding jamb often shows water damage from decades of marine-layer condensation. We spec entry doors by performance tier: fiberglass from Therma-Tru for moderate budgets, wood-clad when the architect wants natural grain, and custom millwork when the home’s facade demands something you can’t pull from a catalog. Los Altos homes routinely have wider-than-standard front openings, so most entry door projects here involve some degree of custom jamb work and threshold rebuild.
Hurricane-Proof Front & Entry Doors
Los Altos doesn’t sit in a hurricane zone, but the same impact-rated engineering that protects coastal Florida translates directly to the security and sound isolation many homeowners want here. We install impact-rated entry doors from PGT and CGI, both of which carry documented design pressure ratings. For Los Altos specifically, the more practical benefit is acoustic isolation: doors along Foothill Expressway, El Camino Real, and any property within earshot of Highway 280 benefit measurably from impact-rated construction even without storm exposure. It’s quiet that sells these doors in this city, not weather.
French & Double Doors
French and double doors in Los Altos usually replace two things at once: a deteriorated aluminum slider and a dated rear facade. We’ve installed double door systems throughout the North Los Altos and Country Club neighborhoods, and the most common request is a lift-and-slide or French-style unit that opens onto a patio or pool area. The key local consideration is threshold design. Los Altos’s alkaline soil corrodes aluminum thresholds at the concrete interface, so we specify treated lumber jambs and composite thresholds by default. You’ll get a door that opens cleanly 10 years from now, not one that grinds against a corroded track.
Replacement Doors
Replacement doors are the single highest-volume request we see across Los Altos’s 94022 and 94024 zip codes. The trigger is almost always the original 1960s slider. The aluminum track has corroded into the concrete, the rollers are discontinued, and repair costs approach 60-70% of full replacement without solving the root problem. We pull the old unit, inspect the rough opening for sill rot, replace any damaged framing, and install a new door with documented U-factor and SHGC ratings. If you’re selling your home or pulling a remodel permit, that documentation is what Title 24 compliance requires.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
BeforeAfterTrusted Brands We Service in Los Altos
We draw from eight manufacturer lines and specify by what the opening requires, not by what’s sitting in a warehouse. For Los Altos, the three we most commonly recommend are ViewLux for custom aluminum and European lift-and-slide systems, PGT for impact-rated doors where acoustic and security performance matter, and Therma-Tru for fiberglass entry doors that hold paint and resist the marine-layer moisture we see most mornings. Every brand we install carries documented performance specs, and we provide those specs in writing with your quote. No exceptions.
Common Door Installation Problems We See in Los Altos Homes
- Corroded aluminum slider tracks fused to concrete thresholds. Los Altos’s alkaline soils accelerate corrosion at the exact point where 1960s-era aluminum door tracks meet the concrete slab. Once the track is fused, rollers can’t be replaced and the door cannot be repaired economically. Full replacement is usually the only sound option.
- Interior sill rot hidden behind the door frame. Morning marine layer condenses on aged single-pane aluminum frames, and that moisture wicks into interior sills. Homeowners often discover the rot only after we remove the old door. We document it photographically and include the repair in the written scope before proceeding.
- Title 24 compliance failures on legacy doors. Los Altos building enforcement requires documented U-factor and SHGC for any permit-pulled door replacement. Original doors installed in the 1960s and 1970s have no such documentation, which stalls sales and remodels. We provide the necessary documentation with every installation.
- Undersized rough openings that don’t match modern door specs. Postwar ranch homes in Los Altos were framed for thin aluminum doors. Modern fiberglass and wood-clad units need deeper jambs and wider rough openings. We handle the framing work as part of the job, not as a change order.
Pricing for Door Installation in Los Altos, CA
A standard entry door replacement in Los Altos runs $2,800-$5,200 installed, including jamb repair and basic trim. French or double door systems typically land between $4,500-$8,500 depending on width, sightline, and glass package. Custom fiberglass or wood-clad units with architect coordination, custom millwork, or Title 24 documentation range from $6,500-$11,500. Here’s what’s included in every quote: the measured survey you keep, the written scope, the door and hardware, installation labor, any required framing or threshold work, and the documented photo record at completion. Long lead times on custom doors are quoted at the time of order, and the price is fixed in writing before anything gets manufactured. Call (509) 265-6387 for a free estimate. If you have a competitor’s written quote, bring it to us. We’ll review it at no charge.
We Also Serve Cities Near Los Altos
Our crews serve Door Installation in Los Altos and the surrounding Peninsula communities. We regularly work in Mountain View, Palo Alto, Menlo Park, and Sunnyvale. Same standard, same written-price policy, same documented photo record. If you’re in a neighboring city, you get the full Haven Standard without exception.
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 - Door Installation in Los Altos
The original aluminum tracks have almost always corroded into the concrete threshold, and the roller hardware has been discontinued for decades. Los Altos’s alkaline soil makes this corrosion worse than in neighboring cities with different soil chemistry. Repairing a fused track requires cutting out the threshold and rebuilding it, which costs nearly as much as a full door replacement and still leaves you with an old single-pane unit that leaks heat and fails Title 24 inspection. Call (509) 265-6387 and we’ll show you the condition of your track during the survey.
Every permit-pulled door replacement in Los Altos must include documented U-factor and SHGC ratings for the new door. Original 1960s and 1970s doors have no such documentation, so any remodel or sale that triggers a building inspection will flag non-compliant doors. We provide the compliance paperwork as part of every installation, and the architect or designer on your project receives it directly for their permit package.
Fiberglass with a wood-grain finish is the most common choice for entry doors because it holds paint well in Los Altos’s marine-layer climate and doesn’t warp. Wood-clad units appear frequently on architect-led remodels where the natural grain needs to match existing millwork. For patio and rear openings, European lift-and-slide systems from ViewLux have become the standard on high-budget teardown replacements. We’ll spec material by performance tier and show you the difference in writing.
Custom doors, especially lift-and-slide systems and architect-specified millwork, typically have 10-16 week manufacturing lead times. We order only after your written quote is approved, and the price is fixed before manufacturing begins. That means the calendar is set by the lead time, not by our labor. If your schedule requires a door sooner, we’ll tell you which models are available faster and what the tradeoff is. Call us and we’ll map out the timeline from survey to installation.
Yes. We work directly with architects and designers on Los Altos projects to match stucco reveals, existing sightlines, and the specific proportions of postwar ranch facades. We’ve matched low-profile reveals on 1960s ranch homes along Jardin Drive, and we’ve coordinated custom millwork on larger contemporary replacements in the hills. The measured survey captures the exact dimensions and reveal depths, and that document becomes the basis for fabrication. Bring us drawings or a photo of the facade and we’ll spec the door to match.
We schedule measured surveys across Los Altos five days a week, and our scheduling team works from the San Francisco Bay Area office to coordinate local crews. In most cases, we can have a technician at your door within 3-5 business days of your call, depending on your availability. Call (509) 265-6387 and we’ll find a time that works.
Every Sightline installation carries the 365-Day Done Right Promise, which is written into the Haven Standard, not offered as a courtesy. If anything isn’t done right within the first year, we make it right. The scope is documented in writing before work starts, and the photo record at completion is your evidence of what was installed. That’s Haven Clause 5.
Get Your Written Price for Door Installation in Los Altos
You deserve to see the price before a tool is lifted. Call (509) 265-6387 to schedule your free measured survey in Los Altos. You’ll get the survey to keep, a written quote that cannot differ from that document, and a clear scope of work with every dollar accounted for. Bring us a competitor’s written estimate and we’ll review it at no charge.
Written by Sonia Raman, Owner at Sightline Windows & Doors, serving Los Altos under the Haven Standard since 2012.
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