New windows and doors improve comfort, cut energy bills and add long-term value to your home. Meridian Windows and Doors San Francisco 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 homeowners arrive naming - the most impact certifications in the industry$$$
- More impact certifications than any other line we quote
- WinGuard, EnergyVue and ClassicVue Max systems built for every wind zone
- 99% on-time delivery keeps your install date on the calendar
CGIThe heavyweight impact line$$$$$
- Large-missile impact ratings for the strictest wind zones
- Architectural-grade aluminum with commercial-depth frames
- The line we quote when protection is the whole point
CWSThe value pick$$
- Vinyl systems built to strict wind codes
- Strong energy packages at the friendliest price point
- The smart start for whole-home replacements on a budget
ESWSlim lines, big glass$$$$
- Narrow-sightline aluminum for modern elevations
- Oversized openings and floor-to-ceiling glass
- Impact-rated without the bunker look
ECOThe aluminum impact workhorse$$$
- Factory-built aluminum impact systems
- A strong price-to-protection ratio for coastal homes
- Proven inventory lines with short lead times
CWS Patio Door Installation in San Francisco: What to Know First
We install and replace CWS patio doors throughout San Francisco as an independent CWS service provider. Most CWS patio door installations take one full day on site, and the price goes on paper before any work starts. If you own a CWS door that’s binding, leaking, or simply past its useful life, call (831) 273-7126 for a free estimate with real numbers, not a range you’ll have to negotiate later.
This page is written for CWS owners in San Francisco who need straight answers: what fails, what it costs, what we do differently, and whether repair or replacement makes sense. Elliot Vance, our owner, still walks every final inspection himself because a door that doesn’t seal right is a callback waiting to happen. If you’re in the Richmond, Sunset, Noe Valley, or anywhere else in the city, here’s what you need to know before you make one call.
How CWS Products Fail – and How We Fix Them
CWS builds a solid door. But every manufacturer has patterns, and after years of working on CWS patio doors in San Francisco, we see the same five failures repeat. Here’s what they are, why they happen, and what we do about them:
- Roller failure on the Series 600 sliding patio door. The factory rollers CWS uses on the 600 series are nylon-wheeled and tend to flatten over time, especially when the track collects the fine grit that blows in off Ocean Beach. A flattened roller makes the panel drag, then the homeowner forces it, and the track gets scored. We replace rollers with stainless-steel wheeled assemblies rather than OEM nylon, which costs slightly more up front and lasts years longer. The fix is usually a half-day job.
- Weep-hole clogging on the Series 3000 multi-slide door. The CWS 3000 series has weep channels that drain water from the lower track. Fog-season debris and San Francisco’s fine dust clog those channels, water pools, and eventually the interior floor shows staining at the threshold. We clear the weep system, verify drainage with a water test, and re-bed the threshold if the damage has already started. This is one of the most common CWS-specific calls we get in the Outer Richmond.
- Header sag on older CWS French-style patio doors. In homes built before the 1990s, especially Victorians near Alamo Square and Pacific Heights, the rough openings were framed for single-pane doors that weigh far less than a modern double-pane CWS unit. Over time the header settles slightly, the door binds at the top corner, and the lock hardware stops aligning. We shim and re-square the opening before the new door goes in, because a new CWS door installed into a sagging opening is just a warranty claim waiting to happen.
- Weatherstripping compression set in fog-belt locations. CWS doors use compression-style weatherstripping that works well in a dry climate. In the Sunset and Richmond, where humidity runs high year-round and salt air is a constant, that weatherstripping compresses and loses rebound faster than the manufacturer’s spec suggests. We replace it with a silicone-bulb profile that holds its shape longer in marine air. It’s an aftermarket part, not OEM, and it’s a better match for this climate.
- Lock misalignment after settling on hillside lots. San Francisco homes on sloped lots settle unevenly, and a CWS patio door installed without accounting for that will eventually show a latch that scrapes or a deadbolt that won’t throw. We check the foundation-relative level before installation and, where needed, install the door with a slight intentional offset so the hardware stays aligned as the structure continues to move. That’s not a manufacturer spec; it’s something you learn after installing doors on enough Twin Peaks hillsides.
Our CWS Patio Door Installation Process
Every CWS job follows the same sequence, whether it’s a single sliding patio door in the Marina or a full multi-slide replacement in Sea Cliff. No shortcuts, no surprises:
- 1
Phone call and schedule. A live person answers at (831) 273-7126. We ask about your current door, the opening size, and what’s failing. If you have the original CWS paperwork or a serial number, great. If not, we’ll work from measurements and photos.
- 2
On-site measurement and written estimate. We come out, measure the opening in three places, check for square, and inspect the threshold and rough framing. Then we write the price down. It doesn’t move at the door.
- 3
Parts decision: OEM vs. quality aftermarket. For warranty-sensitive situations, we order CWS OEM parts. For long-term durability issues, like the roller and weatherstripping examples above, we specify an aftermarket part and explain exactly why it’s the better call in San Francisco’s climate.
- 4
Installation day. Background-checked, uniformed technicians arrive on time. We remove the old door, address any framing issues, install the new CWS unit, seal the threshold and perimeter, and clean the glass and track.
- 5
Testing and walk-through. We cycle the door 10 times, check the lock alignment, run a water test on the weep system, and walk the entire job with you. Elliot or a lead technician signs off before we leave.
- 6
The 365-Day Done Right Promise. Every CWS installation is covered in writing for a full year. If the door fails within that period, we come back at no charge. No labor exclusions, no fine print.
What CWS Patio Door Installation Costs in San Francisco
Here are the numbers we typically quote for CWS patio door installations in San Francisco. These are installed prices including labor, fasteners, sealant, and the written warranty:
| Job Type | Typical Installed Price Range |
|---|---|
| CWS sliding patio door, single panel, direct replacement | $1,800 – $2,900 |
| CWS French-style patio door, double panel | $2,500 – $4,200 |
| CWS Series 3000 multi-slide (3-panel) | $4,500 – $7,500 |
| Roller replacement and track realignment (parts + labor) | $180 – $350 per panel |
| Weatherstripping replacement, full perimeter | $150 – $300 |
What moves the price: opening size, whether the existing rough framing is square, whether we’re doing a straight replacement or a full tear-out, and whether any glass is tempered. San Francisco building code may require tempered glass on certain patio door applications depending on proximity to the floor and the door’s height. We pull permits when the job requires them and pass inspection before we call it done. Call (831) 273-7126 for a written quote on your specific door. Estimates are free.
Why San Francisco Homeowners Call Meridian Windows and Doors San Francisco for CWS Work
A meridian is a fixed line you measure everything against. That’s what the name means and how we run every install. We’re part of the Garrison Partners family, operating to The Garrison Standard since 2009. We’re locally owned and operated, not a franchise dispatch center.
Every job gets a written price before a single screw turns. Every installation is covered by the 365-Day Done Right Promise: if it’s not done right, we make it right, in writing, for a full year. Our phones are answered by a live person 24 hours a day, every day of the year, because a patio door that won’t lock at 8 p.m. shouldn’t wait until morning. Our technicians are background-checked, uniformed, and trained on CWS products specifically. And because we stock eight manufacturer lines including PGT, CGI, ES Windows, and ECO Window Systems, we’ll tell you honestly when a CWS replacement is still the right call and when another brand fits the opening better. The right product for the job, not the one that happens to be in stock.
FAQs
No, not when the installation is performed correctly by a qualified contractor. As an independent CWS service provider, we follow CWS installation specifications and use OEM parts where warranty compliance matters. The manufacturer warranty covers the door; our 365-Day Done Right Promise covers the labor. Call (831) 273-7126 if you’d like us to review your specific warranty terms.
In most cases, yes. CWS parts availability for models produced in the last 15 – 20 years is good, and when an OEM part is discontinued or backordered, we can usually source a compatible aftermarket replacement. We’ll tell you the difference in cost and expected lifespan before we order. Call (831) 273-7126 with your model number if you have it, or a photo of the door if you don’t.
If the frame is solid, the glass is intact, and the failure is mechanical – a roller, weatherstripping, or a lock – repair usually makes financial sense. If the frame shows rot, the glass has blown (fog between panes), or the door no longer seals against wind-driven rain, replacement is the better long-term call. We’ll give you an honest assessment either way, and the repair price goes in writing before we start. Call (831) 273-7126 for a free evaluation.
Most single-door installations are completed in one day. Multi-slide systems take two to three days depending on panel count and whether we’re re-framing the opening. San Francisco permits and inspections can add lead time, and we handle both. Measure twice, order once – the window doesn’t care about your schedule, and neither does a custom-ordered CWS door.
Yes, and this is where experience matters. Older buildings in San Francisco – Victorians, Edwardians, and mid-century flats – have rough openings that are rarely square, often have settled headers, and sometimes hide dry rot behind the trim. We’ve installed extensively in neighborhoods like Alamo Square, Pacific Heights, and the Inner Sunset, and we account for framing issues before the door goes in rather than discovering them after the old one comes out. Call (831) 273-7126 and tell us about your building; we’ll know the right questions to ask.
Get Your Free CWS Patio Door Estimate
If you own a CWS patio door in San Francisco that needs replacing – or one that’s failing and you’re not sure whether to repair or replace – call (831) 273-7126. We’ll schedule a measurement visit, write the price down, and walk you through exactly what the job will take. No pressure, no door-to-door tactics. Just a fixed line, measured twice, done right.
Written by Elliot Vance, Owner, Meridian Windows and Doors San Francisco at Meridian Windows and Doors San Francisco, serving San Francisco and nearby areas.
Six Reasons Homeowners Choose Meridian Windows and Doors San Francisco
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.