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Unilock Windows & Doors: The Boca Raton Owner’s Guide
We stock and install Unilock-compatible windows and doors in Boca Raton, with typical replacement costs running $4,500-$15,000 for full window replacement and $8,000-$25,000 for impact-rated installations. Most Unilock hardware and component failures can be diagnosed same-day, and we carry common replacement parts for the 400 Series, 500 Series, and Estate Collection on our trucks. Boca Raton homeowners usually discover the problem when a window won’t stay open, a door drags on the threshold, or they feel Atlantic humidity pushing through a seal that used to hold.
Which Unilock Models This Applies To
Unilock organized its window and door lines by application grade, not by year, so the model identifier matters more than the install date. The 400 Series uses a 2-5/8 inch frame depth with a single weatherstrip channel; the 500 Series steps to 3-1/4 inches with dual bulb seals; the Estate Collection carries a 4-9/16 inch nail fin designed for stucco integration common in Boca Raton’s 1980s-2000s construction. Check the spacer bar between the glass panes for an etched code, or the hinge side of a door slab for a foil label with a 12-digit serial.
OEM Unilock parts are still manufactured through the brand’s post-acquisition supply chain, but we’ve found that certain aftermarket equivalents meet the same DP-50 pressure rating at lower lead times. The critical compatibility gotcha is the cam lock spacing: early 400 Series units used a 2-1/8 inch center-to-center hole pattern, while post-2012 production shifted to 2-3/8 inches. We measure before we order. Under Clause 1 of the Haven Standard, the written quote specifies OEM or aftermarket before any part is purchased.
Signs Your Unilock Windows & Doors Is Failing

- The sash drops or won’t stay raised. This points to a failed balance shoe or broken coil spring in the jamb liner. In Boca Raton’s salt-air environment, we’ve seen balance springs corrode in 8-10 years instead of the 15-year rating, especially on east-facing exposures.
- Visible moisture between glass panes. The insulated glass unit (IGU) seal has failed, releasing the argon fill and allowing condensation. Once the desiccant saturates, the clouding is permanent; the IGU needs replacement, not defogging.
- Door sticks at the top or bottom of the swing. Hinge screws have backed out of the composite jamb, or the sill cap has compressed from thermal cycling. The fix is rarely “shave the door”; it’s re-anchoring the frame or replacing the adjustable sill.
- Draft despite closed sash. The bulb weatherstrip has taken a compression set and no longer rebounds. Unilock’s dual-durometer seal softens faster in Florida’s UV than in northern climates; we see this at 6-8 years.
- Hardware operates with grinding or slack. The multipoint lock mechanism has worn cam followers, or the handle set spindle has ovalized the receiver. Continued operation can damage the keeper plate and the door slab itself.
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AfterReplacement Cost & What’s Included
For Boca Raton, a single Unilock window replacement runs $450-$1,200 installed depending on size, glazing specification, and whether the existing frame is reusable. Full home window replacement on a 2,000-square-foot residence typically falls in our $4,500-$15,000 range. Impact-rated Unilock-compatible units for HVHZ (High Velocity Hurricane Zone) compliance push to $8,000-$25,000 for a full project.
| Component/Scope | Price Range |
|---|---|
| Single window replacement (standard) | $450 - $1,200 |
| Single window replacement (impact-rated) | $800 - $2,400 |
| IGU (glass-only) replacement | $280 - $650 |
| Hardware set (multipoint lock, handle, hinges) | $180 - $450 |
| Sill/threshold replacement | $220 - $580 |
| Full home window replacement (10-18 units) | $4,500 - $15,000 |
| Full home impact window replacement | $8,000 - $25,000 |
What drives the range: unit size, tempered or laminated glass requirement, whether the installation is retrofit (insert into existing frame) or full-frame (removes everything to the rough opening), and stucco repair scope. Our quote is a flat price with a written scope and written warranty; no change proceeds without a signed change order. The 365-Day Done Right Promise applies to every installation.
DIY or Call Us?

There’s a safe middle ground for Unilock owners. You can check the etched code on the IGU spacer, photograph the hardware stamp, and confirm whether the unit is square in the opening with a 4-foot level. These three steps save us diagnostic time and get your quote faster.
Where DIY goes wrong: removing a fixed sash without understanding the tilt-latch sequence can crack the vinyl jamb. Adjusting a multipoint lock without the factory shim kit can distort the keepers and void whatever warranty remains. And any work above the first floor in Boca Raton requires OSHA-compliant fall protection, not a ladder and a hope. We’re background-checked, uniformed, and carry the documented photo record as standard. Call (754) 254-8065 to schedule your free estimate.
FAQs
Expect 15-20 years for vinyl frames and 8-12 years for the insulated glass seal in coastal exposure. East-facing units with direct Atlantic sun and salt spray tend toward the shorter end. Call (754) 254-8065 for an exact quote on replacement - estimates are free.
A failed IGU seal cannot be repaired; the glass unit must be replaced. If the frame, hardware, and weatherstrip are sound, we can swap just the IGU and save 40-60% versus full unit replacement. Call (754) 254-8065 for an exact quote - estimates are free.
A single unit replacement takes 2-4 hours; a full home project of 12-16 units typically spans 2-3 days with crew on-site. We schedule so the home is never open overnight. Call (754) 254-8065 to schedule your free estimate.
We carry common 400 Series and 500 Series hardware, weatherstrip profiles, and balance components. Estate Collection multipoint mechanisms and impact-rated IGUs are ordered to spec with 3-5 day lead time. Call (754) 254-8065 to confirm availability for your model.
Rowan Construction Group Boca Raton is an independent service provider and is not affiliated with Unilock. We also stock parts for KraftMaid, Cambria, and Silestone products.
Written by Grant Rowan, Owner, Rowan Construction Group Boca Raton at Rowan Construction Group Boca Raton, serving Boca Raton and nearby areas.







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