Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Unilock Windows & Doors: The San Francisco Owner’s Guide
We stock and install Unilock-compatible windows and doors across San Francisco, with most hardware swaps and sash replacements running $350 to $1,200 installed depending on the part and the series. If your Unilock window won’t latch, won’t stay open, or is letting fog roll straight through the frame, we can usually source the part same week and have it in the same day it arrives. Most homeowners discover the failure the hard way: a window that suddenly drops shut, a lock that spins without catching, or a patio door that grinds against its track after years of coastal salt air.
Unilock makes a tight product, but San Francisco is a hard place for any window or door. The fog, the salt, the temperature swings between the Sunset and the Mission. That’s a lot for a hardware set to absorb. Our crews have pulled apart enough Unilock units in Richmond, Noe Valley, and the Outer Sunset to know exactly where they fail and why.
Which Unilock Models This Applies To
Unilock’s current lineup covers casement, awning, single-hung, sliding, and tilt-and-turn windows, plus hinged and sliding patio doors. The older Unilock lines, particularly the tilt-and-turn units from the late 1990s and early 2000s, used a multi-point locking rail that later series deprecated. If you have a tilt-and-turn window with a long handle that rotates 180 degrees, that’s a series we’ve replaced hardware on more times than we can count.
The compatibility gotcha most owners miss: the hinge and lock hardware is series-specific, not universal. Unilock stamps a serial number on the frame edge or the bottom of the sash, usually a two-letter prefix followed by digits. Get us that code and we can match the hardware without guesswork. On the OEM versus aftermarket question: for Unilock specifically, the OEM hardware is still manufactured and we prefer it for locking mechanisms and tilt-latch assemblies. For weatherstripping and balance shoes, quality aftermarket equivalents perform well and cost less. We’ll tell you which side of that line your part falls on before we order anything.
Styles & brands we work with
Signs Your Unilock Windows & Doors Is Failing
- Window drops or won’t stay up. The balance shoe or spiral balance has stripped. Common on Unilock single-hung windows after 10 to 15 years, especially in older homes near the bay where salt air accelerates the plastic wear.
- Handle turns but nothing catches. The multi-point locking gearbox inside the handle assembly has stripped its teeth. We see this on Unilock tilt-and-turn windows that get forced when the sash is slightly out of alignment.
- Drafts around the sash even when closed. The weatherstripping has compressed or the hinge has sagged enough to break the seal. In the Outer Sunset this means actual fog droplets coming through the gap, not just cold air.
- Patio door grinds or skips on the track. The roller assembly has worn flat or the track has filled with debris. Unilock sliding doors use a specific roller profile that wears unevenly if the door is out of square.
- Lock spins without engaging. The lock cylinder retention clip has failed or the strike plate shifted. Either way, the door or window no longer secures, and that’s a call we treat seriously.
See the difference
Before
After
Before
After
Before
AfterReplacement Cost & What’s Included
For Unilock window and door hardware in San Francisco, here’s the pricing picture we give homeowners before any work starts:
| Part / Service | Installed Price Range |
|---|---|
| Balance shoe or spiral balance (per window) | $120 – $240 |
| Tilt latch or sash lock assembly | $95 – $210 |
| Multi-point lock gearbox (tilt-and-turn) | $350 – $680 |
| Roller assembly (sliding patio door) | $180 – $390 |
| Weatherstripping kit (per window or door) | $130 – $320 |
| Full single window unit replacement | $5,310 – $17,700 |
What drives the range is the part itself, the series, and how much adjustment the sash needs once we’re in there. Every price is written before we start, no numbers that move at the door. The work is covered by our 365-Day Done Right Promise: if the hardware we install fails within the first year, we come back and correct it at no charge. That’s The Garrison Standard in writing.
DIY or Call Us?
Here’s the honest split. You can safely inspect the weatherstripping, note the serial number on the frame, and check whether the sash sits square in the opening. Those observations save us time. What you should not DIY is pulling the sash out to replace a balance shoe or forcing a tilt-and-turn window open when the gearbox jams. A tensioned balance under load can snap back hard enough to break glass or a finger, and a bound tilt-and-turn sash can drop suddenly when the hinge releases. We’ve seen both. If the window fights you, leave it. Call (831) 610-5598 and we’ll send a background-checked, uniformed tech who has handled more of these than any weekend tutorial could prepare you for.
FAQs
We typically see Unilock frames and glass hold up for 20 to 30 years in San Francisco, but the hardware is a shorter story. Locks, balances, and rollers usually need attention around year 8 to 12, especially within a few blocks of the ocean where salt air eats through surface coatings faster. Call (831) 610-5598 for an assessment of your specific units.
In most cases the hardware can be repaired or replaced without touching the frame or glass. We replace the failed component, realign the sash, and test the operation. Full unit replacement is only warranted when the frame has rot, the glass seal has failed, or the homeowner wants upgraded insulation and glazing. We’ll never sell you a window when a $200 part fixes the problem.
Most single-part replacements run 45 minutes to two hours once the part is in hand. Multi-point lock gearboxes and patio door roller assemblies take longer because we re-square the sash or door before we call it done. You’ll have a written scope and a straight timeline before we start.
We keep common balance shoes, tilt latches, and weatherstripping on the truck for the Unilock series we see most often in San Francisco. Specific gearboxes and roller assemblies are ordered per job, typically arriving within three to five business days. We also stock compatible parts for KraftMaid, Cambria, and Silestone lines, so one call covers most of the hardware in a remodeled home.
If you’re in San Francisco and you’ve got a Unilock window or door that isn’t doing its job, call (831) 610-5598 for a free estimate. We’ll tell you the part, the price, and the timeline before we order anything. Straight number, real scope, no surprises at close-out.
Written by Curtis Lane, Owner, Bradford Remodeling Co – San Francisco, CA at Bradford Remodeling Co San Francisco, serving San Francisco and nearby areas.
