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
Therma-Tru Patio Door Installation in San Francisco: What to Know First
We provide independent Therma-Tru patio door installation across San Francisco, from Sunset District sliding doors to Marina District French units. Most Therma-Tru patio door replacements run one to two days on site once the door arrives, which typically takes two to four weeks from order. The price goes on paper before the first screw turns, and it does not move at the door. Call (831) 273-7126 for a free written estimate.
This page is for Therma-Tru owners who need a patio door installed right the first time. If you’ve had a contractor no-show or quote one number and charge another, you’re in the right place. Elliot Vance and his crew know Therma-Tru units inside out, and we put every commitment in writing.
How Therma-Tru Products Fail – and How We Fix Them
- Roller assembly wear on Smooth-Star sliding patio doors. These doors are popular in San Francisco condos and mid-century homes around the Richmond and Sunset districts. The original nylon rollers flatten over five to eight years of daily use and dragging, leaving the door to scrape the track. We replace the roller cartridges with aftermarket units that carry a better load rating than the factory originals, then re-align the panel so it rides without binding.
- Threshold rot on older Therma-Tru frame-and-panel systems. San Francisco fog is relentless. Moisture collects along the sill, and on doors installed before 2010, the aluminum cladding doesn’t always reach far enough under the threshold. We see this on hillside homes in Noe Valley and Glen Park where decks meet patio doors. The fix is a full threshold replacement with a composite sill that won’t absorb water, followed by a proper saddle flashing under the door.
- Warped panels on Fiber-Classic hinged patio doors. The Fiber-Classic line uses a fiberglass skin over a wood frame. When the factory paint chips or the bottom sweep fails, moisture gets into the core and the panel bows. Replace the sweep, fix the weatherstripping, and in severe cases, swap the panel. We never try to straighten a warped Therma-Tru panel with a heat gun. It doesn’t hold, and it voids the manufacturer’s warranty.
- Lock and multi-point hardware drift on Classic-Craft patio units. The multi-point lock is nice until it isn’t. The gearbox and connecting rods drift out of alignment, and then the handle won’t throw or the door won’t seal. We reset the linkage, replace the gearbox when it’s stripped, and lube the mechanism with a dry film. This is a 45-minute fix if caught early. Let it go, and you’re replacing the entire hardware set.
- Fogged glass in insulated units on any Therma-Tru patio line. San Francisco’s temperature swings put real stress on the seal between the panes. Once that seal fails, you get condensation inside the glass that never goes away. We replace the insulated glass unit, matching the low-E coating and the argon fill. If the door is older and the frame is still square, glass replacement is cheaper than a new door.
Our Therma-Tru Patio Door Installation Process
- 1
Call and schedule. A live person answers at (831) 273-7126, 24 hours a day. No voicemail loops.
- 2
Site measurement and assessment. We come out, measure rough opening dimensions, inspect the existing frame, and check for the hidden problems San Francisco buildings throw at you: settled headers, out-of-plumb jambs, and non-standard openings in older homes.
- 3
Parts decision and written quote. We spec the door, decide between OEM Therma-Tru components and quality aftermarket where the factory part is backordered or overpriced, and give you a line-item price in writing. That number does not change at the door.
- 4
Installation. We remove the old door, verify the rough opening, set the new unit with proper flashing and insulation, and align every panel and lock. The crew follows The Garrison Code on your job site: clean work area, protected floors, no loose debris.
- 5
Test and walk-through. We operate the door repeatedly, check the seal, test the lock, and do a final walk-through with you. Elliot Vance still does his own final inspection on every job.
- 6
Written guarantee. Your installation is covered by the 365-Day Done Right Promise. If it fails within a year, we come back at no charge.
What Therma-Tru Patio Door Installation Costs in San Francisco
Ballpark figures so you can self-qualify before calling. Therma-Tru patio door installation in San Francisco typically runs:
- Sliding patio door replacement (standard 6-foot Smooth-Star): $2,300 – $3,800 installed
- Hinged French patio door (Fiber-Classic, double panel): $3,200 – $5,100 installed
- Classic-Craft patio door with multi-point lock: $4,500 – $7,000 installed
- Insulated glass replacement only (if frame is solid): $500 – $1,100 per panel
- Threshold replacement with composite sill: $350 – $650
What moves the price: door size, whether you need a custom rough opening, whether rot in the subfloor or framing needs repair, and which hardware set you choose. San Francisco also adds access challenges: parking can be tight, and some Victorians need second-floor adjustments with narrow stairways. We factor all of that into the written quote, so you’re never surprised at the end. Call (831) 273-7126 for an exact price.
Why San Francisco Homeowners Call Meridian Windows and Doors San Francisco for Therma-Tru Work
We’re the windows-and-doors specialist under the Garrison Partners umbrella, held to The Garrison Standard since 2009. A meridian is a fixed line you measure everything against. That’s what the name means and how we run every install.
Every Therma-Tru job gets a written price before work starts, a background-checked uniformed technician on site, and the 365-Day Done Right Promise. If it fails within a year, we come back at no charge. We stock eight manufacturer lines, so if a Therma-Tru panel isn’t the right call for your opening or your budget, we can spec PGT, CGI, CWS, or ES Windows instead. The right door for the job, not just the one we happen to carry. That’s what independent service gives you.
FAQs
Yes, we can install a customer-supplied Therma-Tru patio door, but we’ll inspect it first. Measure twice, order once – the window doesn’t care about your schedule. If the door is the wrong size or was damaged in shipping, we’ll tell you before we start, not after we’ve cut into your wall. The warranty on our labor still applies for the full 365 days.
No. Therma-Tru’s manufacturer warranty covers defects in the door itself, not installation errors. That’s why we put our own warranty in writing: 365 days, and if the work fails, we return at no charge. We also install in a way that preserves your manufacturer coverage, using approved flashing methods and never drilling holes that would void the warranty.
A typical sliding patio door replacement takes one day on site. Hinged French units with a new threshold may take two. The lead time is usually the door itself: two to four weeks from order to delivery, depending on the series and finish.
Depends on the frame. If the frame is square, not rotted, and the glass is still clear, a roller replacement, new threshold, or hardware fix makes sense and usually runs $350 to $1,100. If the frame is warped from moisture or the glass seal has failed in multiple panels, replacement costs less over three years than repeated repairs. We’ll show you both numbers and let you decide. Call (831) 273-7126 for a free estimate.
No. We’re an independent Therma-Tru service provider. That’s the point: we’re not tied to one manufacturer, so we can tell you honestly when a Therma-Tru door is worth repairing and when a PGT or CGI door would serve you better. Our recommendations follow the condition of your opening and your budget, not a sales quota.
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.