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 Daly City
Patio door installation in Daly City runs $1,800 – $4,600 for a standard slider replacement, and most jobs wrap in one day once the door is on site. The price depends on the opening size, the frame material you pick, and whether the rough opening needs re-leveling before we set the new unit. Our crews know Daly City’s fog line, its sloping lots, and the local permit process, so we scope the job correctly before a single screw turns. Call (817) 686-2228 for a written, no-pressure estimate. We serve every district in Daly City, from Westlake and St. Francis Heights to the Bayshore edge and Crocker-Amazon.
Meridian Windows & Doors is the windows-and-doors specialist within the Garrison Partners network. Dispatch and scheduling are coordinated from our San Francisco Bay Area office, and crews handle Daly City jobs locally. A meridian is a fixed line you measure everything against – that is what the name means and how we run every install.
Why Meridian Windows & Doors Is Daly City’s Preferred Patio Door Installation Company
Daly City homeowners have dealt with enough no-show contractors and vague estimates. We run differently. Every project is part of the Garrison Partners family, held to The Garrison Standard since 2009, and every price goes on paper before work starts. The price does not move at the door.
Our installers are background-checked, uniformed technicians, so you know exactly who is walking through your house. The phones are answered by a live person around the clock – no voicemail loops, no next-business-day callbacks. That matters on a Wednesday afternoon when a stuck slider has your living room sealed shut.
We carry eight manufacturer lines – PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux – because Daly City homes face different exposures depending on whether you sit on a Westlake hillside or down near the old Bayshore zone. The right door gets spec’d for your opening, not the one that happens to be in stock. Every install is covered in writing by our 365-Day Done Right Promise: if the work fails within one year, we come back at no charge. Free second visit included.
Elliot Vance leads our team and sets the standard for how we handle Daly City jobs: straight answers, clean openings, and a written guarantee on every threshold we touch.
Sliding Door Replacement in Daly City
Sliding Door Replacement in Daly City is the most common patio door job we handle, and it usually starts with a door that no longer glides, a fogged or failed sealed unit, or a frame that has started letting moisture into the subfloor. We remove the old panel and track, inspect the rough opening for rot, re-level the threshold if the house has settled, and set a new door that seals tightly against Daly City’s damp marine air.
Most sliding door replacements in Daly City run $1,800 – $3,600 for a standard glass slider. The final number moves based on opening width, whether you want impact-rated glazing, and whether we find hidden damage behind the old jamb. We write all of that down before we start; if rot discovery forces a scope change, we show you exactly what we found and price the fix in writing before proceeding.
Rot Repair Under the Threshold
Old aluminum sliders on Daly City homes often sit on tired subfloor framing. Fog moisture seeps in through poorly flashed door pans and rots what is underneath. We cut out the damaged section, patch it properly, and re-flash the opening before the new door goes in. That flashing work is the part that keeps the same problem from returning next winter.
Sloping Lots and Binding Doors
Many Daly City homes are built on graded hillsides. When the ground shifts slightly, the door opening drifts out of square and the slider starts binding. We shim and re-level the opening before setting the new frame, so the door moves the way it should on day one and a year later.
Sliding Door Installation in Daly City
Sliding Door Installation in Daly City means putting a new opening in a wall or replacing an old hinged door with a glass slider. It is a bigger job than a straight replacement because it involves header work, wall modification, and often a permit with inspection. We handle the full scope, from structural assessment to final trim and caulk.
A new sliding door installation in Daly City typically runs $3,000 – $4,600. The range accounts for framing modifications, the door unit itself, and finish work. If the wall is load-bearing, the header work adds cost – but we price the full job before any wall opens up.
Framing and Header Work
Cutting a new opening in a Daly City wall means understanding the framing behind it. Older homes in Westlake and Serramonte often have non-standard stud spacing or altered layouts. We inspect the wall before quoting so the labor estimate reflects what is actually there, not a guess.
Permits and Rough Opening Inspection
A new opening requires a building permit in Daly City, and the inspector will want to see the header and framing before the door is set. We pull the permit, schedule the inspection, and make sure the job passes. The goal is a finished door with a closed permit file and no open questions left for you.
Trusted Brands We Service in Daly City
We are authorized to install and replace patio doors from PGT, CGI, CWS, and ES Windows, among the eight lines in our portfolio. For Daly City specifically, we often recommend PGT for impact-rated sliders on fog-facing exposures and CWS for their narrower frame profiles that suit mid-century Daly City homes. We do not push a brand because it happens to be available. We spec it because it is the right one for your opening and your exposure. Parts and warranty service are handled directly through our Daly City crews, so follow-up is quick and local.
Common Patio Door Installation Problems We See in Daly City Homes
- Fog-driven moisture behind old door pans. Daly City’s marine layer keeps door pans damp for months at a time. When the original flashing fails, moisture sits against the subfloor framing and rot spreads before anyone notices. We open the threshold and inspect before quoting the replacement so the price reflects the real scope.
- Pitted aluminum slider tracks. Salt air and grit off the Pacific settle into old aluminum tracks and eat the metal. Homeowners often think the glass is the problem when actually the frame and rollers are done. We replace the whole assembly, not just the panel.
- Sliders binding on settled hillside openings. Daly City’s sloping lots shift over time, and a door that once glided starts dragging. Re-leveling the rough opening before setting the new frame is often the difference between a door that works for a decade and one that binds again in two years.
- Drafty rooms from failed seals. Old sealed units go flat and let fog chill creep in. In Daly City’s Westlake district, we replaced a failed 6-foot slider with a PGT impact-rated unit and had to re-flash the sill after finding rot in the original subfloor framing; the new door’s E-coated jamb and tracked drain system were chosen specifically because the old opening faced the fog-rolling Pacific side. The homeowner later said the room no longer felt drafty at night, which tracks with fresher glazing and tighter shim lines.
Pricing for Patio Door Installation in Daly City, CA
Here is what you can expect to pay for patio door work in Daly City:
| Job Type | Typical Daly City Range | What Moves the Price |
|---|---|---|
| Sliding door replacement (standard glass slider) | $1,800 – $3,600 | Opening width, frame material, rot repair if found |
| Impact-rated sliding door replacement | $2,500 – $4,200 | Glazing spec, wind load requirements, frame construction |
| New sliding door installation (new opening) | $3,000 – $4,600 | Header work, permits, wall condition, finish trim |
| Sliding door repair (rollers, track, latch) | $180 – $450 | Part type, track replacement if pitted |
These are the honest Daly City market ranges based on the jobs we quote here every week. Coastal exposure above Gellert or near Westlake can push a door spec toward impact-rated glazing, which adds cost but returns it in stubbornness against fog and storm weather. Whether you are near Serramonte, St. Francis Heights, or up in the Bayshore hills, the right number is the one we put in writing before work starts. Call (817) 686-2228 for a free written estimate – no pressure, just the real number.
We Also Serve Cities Near Daly City
Our crews also cover Patio Door Installation work in Brisbane, South San Francisco, San Bruno, and Pacifica. If you live in Daly City or just over the line, the same written pricing and 365-Day Done Right Promise applies.
Serving Daly City, CA - Our Local Coverage Area
We’re based in the Daly City 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 Daly City
If you are swapping an existing door into the same opening, a permit is often not required in Daly City. A new opening or a change in the rough opening size does require a building permit and an inspection. We check the specific requirements for your job before quoting, and when a permit is needed, we pull it and coordinate the inspection ourselves. Call (817) 686-2228 and we will tell you exactly which path applies to your opening.
A standard slider replacement is typically a one-day job once the door is on site. New installations requiring header work, a permit inspection, and finish trim usually take two to three days total, including the inspection wait. We lay out the full calendar in writing before the first day of work.
Impact-rated glazing means the door is built and tested to withstand wind pressure and flying debris, and its frame is engineered to stay in the opening under storm loading. For Daly City homes facing the fog-rolling Pacific side, impact-rated glass and the associated E-coated jamb and tracked drain system are often the difference between a threshold that stays dry and one that rots out from the inside. We recommend it for exposed elevations, not every house.
Yes, low-E glass, which is a thin coating that reflects heat while letting light through, reduces the heat that escapes through sliding glass in winter and blocks solar gain in summer. A tight new slider with low-E glazing and a properly flashed sill will use less energy than a 20-year-old unit with a failed seal. In Daly City’s damp climate, the bigger win is often reducing the drafts and moisture creep that make a room feel cold even when the thermostat says otherwise.
Sliding doors make better use of the tight rooms and steep lot constraints common in Daly City homes, since they don’t swing into living space or onto a sloped patio. A hinged French door may suit a wide, flat opening, but many Daly City rooms benefit from the compact footprint of a slider. We will show you what fits your opening and your budget, in writing, before you commit.
Written by Elliot Vance, Owner at Meridian Windows & Doors, serving Daly City since the Garrison Standard has applied to every job.
Get Your Written Estimate
Patio door installation in Daly City is a job that deserves a straight answer and a price that doesn’t move. We deliver both. The estimate is free, the scope is written down before any work starts, and the whole job is covered by a 365-day written guarantee. Call (817) 686-2228 to schedule your free estimate today. Our live-person line is open around the clock, and a Daly City crew will walk your opening and give you the real number, line by line.