Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Door Installation Across Mountain View
Door installation in Mountain View usually costs between $1,800 and $6,500, depending on whether we’re hanging a standard exterior door, replacing an old aluminum slider, or rebuilding an opening for a designer slab. Most entry door replacements in Mountain View take one or two days on site, but high-end custom doors ordered from manufacturers like Therma-Tru or ViewLux can take six to twelve weeks just to arrive. Call (562) 478-8017 for a written line-item quote before anything gets ordered.
We know Mountain View’s streets well – the ranch tracts in Monta Loma and Rex Manor, the narrow Craftsman lots near Castro Street, the newer builds up toward Shoreline. Every neighborhood has its own quirks when it comes to door framing, and we plan for that before the first cut. You get a fixed price in writing, a team that covers your floors and furniture with drop cloths, and a door that actually closes square against the salt air and Delta wind.
Why Lightwell Windows & Doors Is Mountain View’s Preferred Door Installation Company
Keith Yamada leads our Mountain View work, and his name goes on every job we schedule. That’s how the Door Installation team operates – one person accountable, not a rotating cast. When a homeowner in Waverly Park or Old Mountain View asks who will show up, we can say exactly who. We’re part of the Cedarwell network, operating to the Cedarwell Care Promise since 2010, and the 365-Day Done Right Promise applies to every install in Mountain View, not just the easy ones.
We answer the phone with a live person 24/7, which matters when a new door won’t latch at 9pm and you want a voice, not a voicemail tree. Our technicians are background-checked and uniformed, so you know who’s at your door before they knock. And we put every price in writing before any work starts – no change order that wasn’t discussed first, no end-of-day surprise. The C.A.R.E. values aren’t a slogan on our van; they’re how the crew behaves: Clean up like it’s our own home, Ask before moving anything, Respect your time and quiet hours, Explain the price before the work.
Door Repair in Mountain View
Door repair in Mountain View most often means fixing what the marine air has eaten: a corroded aluminum threshold, a rotted wood sill under a hollow-core patio door, or misaligned hardware that the coastal fog and Delta wind have worked loose over the years. A standard door repair here typically runs $250 to $900, depending on whether we’re replacing hinges and weatherstripping or pulling the slab and rebuilding the sill assembly.
Slab Replacement and Re-Hang
Sometimes the door itself is fine but the slab has swollen or sagged against the frame. We remove it, re-plane or shim the jamb, and re-hang with fresh hardware. On older Mountain View ranches, the original hollow-core slabs are often too far gone – delaminated from years of moisture cycling – and a replacement makes more sense than a repair.
Threshold and Weatherseal Correction
If water has been getting under the door during winter storms, the threshold and flashing usually need to come out. We re-seat the assembly, replace the sill pan where needed, and set new weatherstripping so the door seals against the persistent Bay humidity. This is a one-day job on most ranch homes in Monta Loma or Waverly Park.
Exterior Door Installation in Mountain View
Exterior door installation in Mountain View means removing what’s there now – often an original 1950s aluminum slider with corroded edges and no weatherseal integrity – and setting a properly flash framed, weather-rated door in its place. A standard fiberglass entry door runs $1,800 to $3,400 installed; a full-system replacement with sidelites or a custom slab from Therma-Tru or CGI lands between $4,000 and $6,500, depending on the rough opening work required.
Front Entry Doors
Entry doors on Mountain View’s ranch homes sit directly in the path of the afternoon Delta breeze coming off the flatlands. We spec for design pressure, not just looks, so the weatherstripping and hardware can handle sustained wind load on west- and northwest-facing openings. Every installs gets written pressure specs, not a guess.
Patio and Slider Replacement
Replacing an old aluminum slider with a hinged French door or a new sliding system is one of the most common upgrades in Rex Manor and Monta Loma. The original sliders were set on thin-gauge bucks that are rarely square or level anymore, so we typically re-frame the opening before the new door arrives. That’s included in the written quote, not discovered on install day.
Trusted Brands We Service in Mountain View
We carry eight manufacturer brands and stock local parts for the ones Mountain View homeowners choose most: ViewLux, PGT, CGI, and CWS among them. That means we recommend the door that fits your home and your opening – not the one our vendor happens to sell. If your Mountain View project needs a hurricane-rated assembly for a west-facing exposure, PGT and CGI both make systems we can order with written design pressure ratings. ViewLux gives us the architectural-glass options that Old Mountain View homeowners want near Castro Street. Parts and hardware for these brands are kept in local inventory, so warranty service moves faster than a six-week factory order.
Common Door Installation Problems We See in Mountain View Homes
- Corroded original aluminum slider bucks. In Monta Loma and Rex Manor particularly, the 1950s buck that held the original patio slider is often so corroded it’s out of plane by half an inch or more. You can’t hang a new door on that; the opening has to be re-framed.
- Rotted wood sills under hollow-core doors. The salt-tinged marine moisture off the southern end of San Francisco Bay rots unsealed wood sills far faster than inland cities like Cupertino. A slab swap that ignores the sill fails again within one season.
- West-facing doors that leak wind and water. The sustained Delta breeze across the flatlands pushes rain and air through poorly sealed weatherstripping on west- and northwest-facing doors. This is a design pressure problem, not a cosmetic one.
- Non-standard rough openings in Craftsman homes. The original wood openings near Castro Street were built before standard door sizes existed. A modern pre-hung door almost never fits without a jamb-and-head rebuild.
Pricing for Door Installation in Mountain View, CA
Here’s what Mountain View homeowners can expect, in writing, before any order is placed.
- Standard exterior door replacement: $1,800 – $3,400
- Custom front entry door with sidelite: $3,500 – $5,500
- Full designer door system (slab, jamb, hardware, finish): $4,500 – $6,500+
- Door repair (hinges, threshold, weatherseal, re-hang): $250 – $900
What moves the number is the rough opening. If the existing buck is sound and square, we hang the door and go. If it’s a 1950s aluminum buck that’s corroded out of plane, or an Old Mountain View opening with no reusable framing, the labor goes up because we’re rebuilding the opening, not just hanging a slab. That gets priced in writing before we order anything. Call (562) 478-8017 for a free estimate on your specific door – the quote is line-itemed and fixed, no surprises at the end.
We Also Serve Cities Near Mountain View
We regularly handle door installation for homeowners in Mountain View and the surrounding communities – Los Altos, Sunnyvale, Stanford, and Cupertino. Scheduling is coordinated from the brand’s San Francisco Bay Area office, and crews serve Mountain View locally. If you’re a few minutes up El Camino or across the Stevens Creek boundary, we can usually fit your door into the same week.
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 About Door Installation in Mountain View
Because high-end slabs from manufacturers like Therma-Tru and ViewLux are built to your exact size and finish spec, not pulled from a warehouse shelf. In Mountain View, that lead time runs six to twelve weeks, and the schedule is set by the factory, not by our labor crew. We order as soon as the written quote is approved, and we do all the rough-opening work – re-framing, jamb rebuild, flashing – before delivery day so the door can be hung as soon as it lands. The price is fixed in writing at order time. Call (562) 478-8017 to start the process.
Usually yes, but not by simply swapping the slab. The original aluminum sliders in Monta Loma were set on thin-gauge bucks that are rarely square or structurally sound anymore. We pull the full jamb assembly back to the studs, re-square the rough opening, and build out proper framing for the new door. That work is included in the written quote before you approve anything.
Yes. The original wood openings in that era were built before standard door sizing existed, so a modern pre-hung door almost never drops in. Door installation there becomes a jamb-and-head rebuild – new framing, new head, new threshold – done carefully to match the home’s original proportions. The process takes a little longer, but the written price reflects the full scope, not a surprise add-on later.
It does, more than most people expect. Mountain View sits a couple of miles from the southern end of San Francisco Bay, and the persistent morning fog and salt-tinged air oxidize aluminum frames and rot wood sills faster than inland cities like Sunnyvale or Campbell. We specify fiberglass or composite doors for most exterior openings here, and we always set a corrosion-resistant threshold and flashing system rather than reusing whatever was there. A design decision that ignores the marine layer fails within a season or two.
The door is priced from the manufacturer’s current quote at the time you approve it, and the labor is priced from the measured rough opening and the scope we’ve already inspected. We write all of it down – slab, jamb, hardware, finish, re-framing, flashing, cleanup – before the order goes out. If the factory changes their price after that, we don’t pass it on. The number you approve is the number you pay, covered by the 365-Day Done Right Promise. Call (562) 478-8017 for a free written estimate.
Written by Keith Yamada, Owner at Lightwell Windows & Doors, serving Mountain View since 2010.










Before
After
Before
After
Before
After