Therma-Tru Door Installation Nationwide

Therma-Tru Door Installation: The San Francisco Owner’s Guide

Therma-Tru door installation in San Francisco typically runs $1,400 – $3,600 installed, depending on whether we’re replacing a slab, a pre-hung unit, or retrofitting hardware and weatherstripping on an existing frame. Most single-door replacements are done in one day. The way owners usually find us: a door that suddenly binds at the top corner, a threshold that’s let fog-damp air in for so long the subfloor’s starting to complain, or a Therma-Tru frame that’s outlived its weatherseal and now whistles every time the wind comes off the Pacific.

Call (831) 273-7126

Which Therma-Tru Models This Applies To

We install and service the full Therma-Tru residential lineup: Classic-Craft, Fiber-Classic, Smooth-Star, Pulse, and the newer Benchmark and entry-door series. The compatibility gotcha most San Francisco homeowners hit is this: Therma-Tru makes its frames in roughly a dozen standard jamb depths, and homes here run the gamut, from 1950s Sunset District stucco with 4-9/16″ walls to Marina District builds that need a 6-9/16″ or deeper jamb extension. If you order the wrong jamb depth, the door arrives and doesn’t sit flush with your interior wall; that’s a two-week delay and a restocking fee, not a quick shim fix. When we quote a Therma-Tru installation, we measure the jamb depth, the rough opening, and the slab swing before any numbers go on paper. That’s how Elliot Vance learned to do it after two decades of California retrofits, and it’s how our crew does every job. On the OEM-versus-aftermarket question: for weatherstripping, sweeps, and adjustable sills, Therma-Tru OEM parts fit every time and we keep common sizes stocked. For hinges and locksets, quality aftermarket from Emtek and Baldwin work well provided the bore is standard 2-1/8″. For slabs and frames, go OEM; the composite material and the swing tolerances are not something you want an imitation version of.

Signs Your Therma-Tru Door Installation Is Failing

• Binding or dragging at the top or latch side. This usually means foundation settling or hinge wear has shifted the weight of the slab. San Francisco’s clay-rich soil expands and contracts with our wet winters and dry summers, and over a decade that movement shows up at the door first.
• Visible daylight or a draft around the perimeter. The compression weatherstrip on Therma-Tru doors is good for roughly 8 to 12 years before it flattens. Once it flattens, ocean air gets in, and your heating bill tells you before your hand does.
• Water staining at the bottom corners of the interior trim. This is almost always a failed sill cap or an improperly pitched threshold. In fog-heavy neighborhoods like the Richmond and Sunset, that moisture sits on the paint and migrates into the jamb legs within a couple of seasons.
• Fogging or condensation between glass panes in the door lite. The insulated glass seal has failed. Therma-Tru’s door lites are replaced as a unit; you don’t rebuild the glass at home.
• Loose or sagging hinge screws that won’t stay tightened. The screw holes in the frame have stripped from repeated stress, or the original installer used short screws that never reached the framing. Meridian Windows and Doors reinforces the hinge backing and resets the door square.

Replacement Cost & What’s Included

For San Francisco, here’s what we tell homeowners to expect, installed by our crew:

• Slab replacement (door only, existing frame kept): $800 – $1,600. Covers a new Therma-Tru slab, hinge routing, weatherstrip replacement, bore and latch trim where needed.
• Pre-hung replacement (new slab and frame, same opening): $1,700 – $2,900. Includes demolition, jamb depth adjustment, shimming square, insulation, interior and exterior trim, caulk, and full perimeter seal.
• Full system install with sidelites or transom (common in Pacific Heights and St. Francis Wood entries): $2,600 – $5,200. Multiple lites, double check: frame anchoring, sill pan, cap flashing, and finished trim.
• Threshold, sweep, or weatherstrip replacement only: $140 – $380, done in under two hours in most cases.

You get a written, line-item price before any work starts, and that price does not move at the door. Every Therma-Tru installation from Meridian Windows and Doors is covered by our 365-Day Done Right Promise in writing. If anything fails in that first year, we come back at no charge. We’re an independent service provider; we’re not affiliated with Therma-Tru, which means we spec the part that’s right for your opening, not the one we’re told to sell.

DIY or Call Us?

What an owner can safely check: whether the door slab is visibly sagging from the hinge side (a coin-gap test along the top will show it), whether the threshold screws have come loose, and whether the weatherstrip has obviously flattened across the top. What we don’t recommend doing at home is removing a pre-hung Therma-Tru unit or trying to reset the frame. The composite material is forgiving, but the framing anchor points and the sill pan are not; one wrong pry at the threshold and you’ve torn the water barrier, and that’s a water intrusion issue inside a wall cavity you can’t see from downstairs. If you’re uncertain about what you’re looking at, call (831) 273-7126. A five-minute conversation with one of our people usually tells us whether you’ve got a quick fix or a full replacement.

FAQs

Key Takeaways

• Therma-Tru door installation in San Francisco runs $1,400 – $3,600 for most single-door jobs; full entry systems with sidelites run higher.
• San Francisco’s fog and clay soil mean weatherstrip compression and foundation-driven frame shift are the two most common failure points we see.
• You get a written line-item price before work starts, and it doesn’t move at the door.
• Our crew works to The Garrison Standard, with background-checked, uniformed technicians on every call.
• Meridian Windows and Doors is an independent service provider, not affiliated with Therma-Tru. We also stock parts and install product from PGT, CGI, and CWS.

If your Therma-Tru door has been dragging, leaking, or letting the fog in around the edges, we’ll measure the opening, tell you exactly what’s wrong, and put a fixed price in writing before any work starts. Call (831) 273-7126 to schedule a free estimate. The door is the one part of your house that meets the weather every single day; when it’s no longer doing that job, it’s worth a careful look. And as Elliot says around the shop: measure twice, order once, the window doesn’t care about your schedule. The same goes for the door.

Written by Elliot Vance, Owner, Meridian Windows and Doors San Francisco at Meridian Windows and Doors San Francisco, serving San Francisco and nearby areas.