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 Patio Door Installation Across San Carlos
Most patio door replacements in San Carlos we quote run $2,800 – $6,500 installed, depending on the door system, the condition of the existing rough opening, and whether we’re pulling a permit with the city. That price goes on paper before any work starts, and it doesn’t move at the door. If you’re off Alameda de las Pulgas or up in the hills near Brittan Avenue, our crews know exactly what your house throws at a patio door, because we’ve worked those streets. Call (817) 686-2228 and Elliott or the team will give you a straight answer on what the job costs and how long it’ll take.
A meridian is a fixed line you measure everything against. That’s what the name means and how we run every install. We show up when we say, price honestly, and stand behind the work for a full year in writing.
Why Meridian Windows & Doors Is San Carlos’s Preferred Patio Door Installation Company
San Carlos homeowners don’t need a sales pitch. They need a crew that will actually show up on Brittan Avenue on a Tuesday, pull the old slider without tearing up the stucco, and leave the job site cleaner than they found it. That’s the reputation we’ve built here. Our technicians are background-checked and uniformed. You’ll know exactly who’s walking through your door before they ever step foot on your property.
We’re part of the Garrison Partners family and have operated to The Garrison Standard since 2009. That means every install follows the same written protocol: scope the opening, photograph the existing conditions, price the job in writing, pull the permit if your jurisdiction requires one, and stand behind the work. Dispatch and scheduling run through our San Francisco Bay Area office; the crews serving San Carlos live and work locally in the mid-peninsula.
Our phones are answered by a live person 24 hours a day. Not a voicemail loop, not a next-business-day callback. You call, someone picks up. That matters when you’re trying to lock in a date around a house full of kids, a commute up the 101, or a tenant moving out of a rental on Laurel Street.
Sliding Door Installation in San Carlos
Sliding door installation in San Carlos is the most common patio door job we perform, and it’s rarely as simple as swapping the panel. The 1960s and 1970s ranch homes that line the flatlands between El Camino Real and the Caltrain tracks were built slab-on-grade. The original aluminum slider often sits directly on the mudsill, and after fifty winters of rain blowing in off the western hills, that wood has usually started to go. We quote the door, but we scope the opening.
Opening and Header Assessment
Before we order anything, we check the rough opening for square and the header for rot. In older San Carlos stucco homes, we regularly find the original slider was shimmed to hide a settled header. A new door won’t close cleanly against a crooked opening, so sometimes the right fix is reframing, not a nicer door.
Low-E Glazing and Title 24
Most San Carlos homes fall under the 2022 California Building Code with Climate Zone 3 energy rules. That means the glazing package on your new slider has to meet specific U-factor and SHGC numbers, not just look good in a showroom. We typically spec low-E glass (a thin coating that reflects heat while letting light through) so the door passes inspection without a second visit.
Patio Door Repair in San Carlos
Patio door repair in San Carlos usually comes down to three failure points: a corroded track, a rotted sill, or an out-of-square opening. The door gets blamed, but the drainage does not. If your patio door faces west or sits under an unflashed awning, you’ve been catching winter rain for years, and that water has to go somewhere. Usually it’s into the track, then the sill, then the framing.
Track and Roller Service
When the panel starts dragging or won’t latch, the first thing we check is the track and rollers. On 1980s aluminum sliders, the track often corrodes where the screen door sits. We can sometimes clean and re-align the rollers. If the track is pitted or the wheels are flat-spotted, replacing them makes the door operate like new again, provided the frame underneath is still sound.
Sill and Header Repair
If water has been wicking into the sill, the real repair is under the door. We pull the slider, assess how far the rot has traveled, and replace the damaged wood with pressure-treated stock or composite. Then we flash and seal the opening so the new door isn’t inheriting the old door’s problems. A water test at the sill confirms the fix before we call the job done.
Trusted Brands We Service in San Carlos
We’re authorized to install and replace products from eight manufacturer lines, including PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux. For Patio Door Installation work around San Carlos, we most often spec Therma-Tru for smooth-star sliders, PGT for impact-rated options, and ViewLux when a homeowner wants a more contemporary frame profile. Because we stock common parts for these three brands locally, a repair or adjustment doesn’t have to wait on a freight shipment from the east coast. The right product gets spec’d for the specific job, not whichever model happens to be sitting in inventory.
Common Patio Door Installation Problems We See in San Carlos Homes
- Rot inside the mudsill on slab-on-grade ranches. Pre-1970s construction often has the slider sitting directly on the original mudsill. Decades of winter rain exposure leave that wood soft and compressible, so the door sags and the header no longer carries its load properly.
- Corroded tracks on west-facing doors. San Carlos gets roughly 22 inches of rain a year, concentrated in a few heavy months. A patio door facing west toward the coastal hills takes the brunt of it, and if the awning was never flashed, the aluminum track pays the price.
- Out-of-square rough openings hidden behind shims. Stucco homes from the 1950s and 1960s settle over time. The original installer shimmed the slider to fit a square door into a not-square hole. When we swap the door, we find the real condition of the opening, and that can change the scope.
- Title 24 energy-code mismatches. A homeowner orders a door by how it looks in a catalog, but the glass package doesn’t meet the climate zone requirements. The door arrives, the inspector checks the U-factor and SHGC, and the project stalls until the right glazing gets ordered.
Pricing for Patio Door Installation in San Carlos, CA
A basic sliding patio door with standard low-E glass and a direct swap into a clean opening typically runs $2,800 – $3,800 in San Carlos. Step up to a Therma-Tru or PGT model with a SmartTouch lock, better U-factor, or a custom color, and the price lands between $4,200 – $5,800. If we’re pulling and reframing the opening because of rot or out-of-square framing, expect the total to hit $5,500 – $7,500. Those numbers include labor, disposal, new door, flashing, sealant, and written line-item pricing before any work starts. The only thing that changes the price once work begins is what we find behind the stucco. Call (817) 686-2228 for a free estimate, and we’ll tell you what your specific house needs.
We Also Serve Cities Near San Carlos
Our Patio Door Installation in San Carlos crew works the mid-peninsula daily, and we regularly handle installs in Belmont, Redwood City, Atherton, and Menlo Park. If you’re in a neighboring city with a similar slab-on-grade ranch or a newer hillside build, the same written-price process and 365-day guarantee apply. Call (817) 686-2228 and we’ll schedule a time that works for your street.
Serving San Carlos, CA - Our Local Coverage Area
We’re based in the San Carlos 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 Patio Door Installation in San Carlos
Yes, San Carlos requires a building permit when the patio door opening is being altered, reframed, or upsized. A direct same-size swap that doesn’t touch the framing or the header is typically exempt, but if we find rot in the mudsill and have to cut back the wall, the permit gets pulled. We handle the paperwork, schedule the inspection, and make sure the door passes on the first visit. Call (817) 686-2228 and we’ll tell you which category your job falls into.
A straightforward swap in San Carlos with no framing work is a one-day job, usually finished by mid-afternoon. If we’re reframing the opening because of rot or a settled header, allow two to three days for the construction work plus one inspection visit. The real calendar risk is material lead time; custom-painted or odd-sized Therma-Tru and PGT doors sometimes need ten to fourteen days from order to delivery. We’ll give you a written schedule before you commit.
The price we write down in San Carlos includes the door, hardware, flashing, sealant, disposal of the old slider, labor for our uniformed technicians, the permit if applicable, and a written 365-day guarantee on the entire installation. If anything fails within that year, we come back at no charge. Nothing is excluded as a “labor-only” loophole, and the second visit is free if our work doesn’t hold up. Call (817) 686-2228 for a line-item quote.
The short answer: what’s behind the stucco. If the header is rotted, if the rough opening is out-of-square, or if we discover termite damage in the mudsill, the scope expands because the framing has to be repaired before the new door goes in. That’s not a change order trick; it’s what the house actually needs. Elliot Vance walks every San Carlos job site before we open the wall, and we show you photos of what we found before any additional work is approved.
Often, yes. If the panel is still sealed, the frame is square, and the problem is a corroded track or worn rollers, repair is the right call and it typically costs $225 – $600 in San Carlos. If the sill is rotted or the glazing has failed, replacement starts making more sense because you’re paying labor twice otherwise. We’ll tell you honestly which way to go; we don’t push a new door when a repair does the job. Call (817) 686-2228 and we’ll walk you through it.
Written by Elliot Vance, Owner at Meridian Windows & Doors, providing patio door installation and repair across San Carlos, CA and the mid-peninsula.