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A new rear addition with a vaulted beamed ceiling and tall windows

Boxabl Windows & Doors Nationwide

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A wide opening with a new beam where the kitchen wall was removed
A garage converted into a guest room and home office
A whole-home remodel with the living, dining and kitchen areas opened up
A galley kitchen opened up to the dining room with a new peninsula
A walk-in shower with large-format tile and a built-in niche
A remodeled family room with new windows and a window seat
A stone counter, tile backsplash and open shelf after a kitchen remodel
A remodeled hall bathroom with subway tile and a floating vanity
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Boxabl Windows & Doors: The Tampa Owner’s Guide

We stock and install Boxabl-compatible windows and doors in Tampa, with typical installed pricing ranging from $450 to $1,900 per window and $800 to $3,200 per door depending on size, glass package, and hardware. If you’ve noticed a draft, condensation between panes, or a latch that no longer seats, you’re probably looking at a seal or hardware failure – and we can usually match the part and get it swapped within a week. Most Boxabl owners discover the problem the same way: a humid Tampa morning fogs the glass from the inside, or the entry door starts catching on the jamb after two summers of heat and rain.

Call (850) 779-4017

Elmstead Remodeling Tampa is an independent service provider and not affiliated with Boxabl, but we’ve handled enough Boxabl units across Hillsborough and Pinellas to know exactly which window and door assemblies these structures use. Graham Stein has pulled enough of them apart to tell you which seals fail first and why.

Which Boxabl Models This Applies To

A finished backyard cottage with a small covered porch

Boxabl’s Casita and Casita XL units share a common window and door system, which makes parts matching simpler than it looks. The standard Casita uses a 48-inch by 48-inch double-pane window with a vinyl frame and a low-E glass package, while the entry door is a 36-inch by 80-inch steel or fiberglass unit with a multipoint lock. The XL adds a second window on the long wall and occasionally a sliding glass door, depending on the build batch.

Here’s the compatibility gotcha we see in Tampa regularly: Boxabl changed window suppliers at least twice during production ramp-up, so two Casitas built six months apart can have slightly different frame profiles and glass thicknesses. Before ordering anything, check the small white label on the inside of the window frame – it’ll show a manufacturer code and a date. Measure the visible glass, not the frame. If the label is faded or gone, a photo of the frame corner profile sent to us is usually enough to identify the right replacement. For doors, the hinge spacing and latch position matter more than the door slab itself. In most cases, a quality aftermarket window or door from a manufacturer like PGT or Jeld-Wen will fit with minor shimming and perform better in Florida humidity than the original. We also stock parts for KraftMaid, Cambria, and Silestone cabinetry and countertop systems for owners doing broader upgrades.

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Styles & brands we work with

Kitchen remodeling
Kitchen remodeling
Bathroom remodeling
Bathroom remodeling
Home additions & ADU
Home additions & ADU
Roofing
Roofing
Windows & doors
Windows & doors
Driveway & pavers
Driveway & pavers
Fence
Fence

Signs Your Boxabl Windows & Doors Is Failing

  • Condensation or fog between the panes. This means the insulated glass seal has failed and moisture has entered the air gap. In Tampa’s climate, this happens faster than in dry regions because the humidity differential constantly works against the seal.
  • The window no longer stays open or closes flush. Vinyl frame warping from heat cycles can cause the sash to bind. We’ve seen Casita windows in Tampa warped by as little as 3/16 of an inch, which is enough to break the weather seal.
  • You can see daylight around the door edges. The door slab or the weatherstripping has shifted. On Boxabl units, the door frame is anchored to a steel chassis, so any settling or flex in the foundation transfers directly to the door alignment.
  • The multipoint lock grinds or only partially engages. Boxabl entry doors use a European-style multipoint hardware set. Fine sand from Florida soil works into the mechanism and wears the gear teeth, causing the lock to bind.
  • Water stains on the interior wall below the window. This is usually a failed perimeter seal or a clogged weep hole. In Tampa’s heavy afternoon storms, a blocked weep channel will overflow water right down the interior drywall.
Before & after

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Recent Project
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Full Restoration
Before - Complete UpgradeBeforeAfter - Complete UpgradeAfter
Complete Upgrade

Replacement Cost & What’s Included

A single-story rear room addition with tall windows and a new patio

For a single Boxabl Casita window replacement in Tampa, you’re looking at $450 to $900 installed. A standard entry door runs $800 to $1,800. A sliding glass door, which shows up on some XL builds, lands between $1,200 and $3,200 depending on whether it’s a two-panel or three-panel unit and what glass package you choose. The spread comes down to three things: whether we’re replacing just the glass and hardware versus the full frame, which window supplier your Casita batch used, and whether any water damage around the opening needs repair before the new unit goes in.

Every quote is a written, fixed price before we touch the first screw. That includes the part, the labor, the disposal of the old unit, and the clean-up. We bring drop cloths and shoe covers on every visit, and we photograph the work area before we leave so you can see exactly what got cleaned. The 365-Day Done Right Promise covers the install – if something isn’t right after the job is done, we come back and make it right.

DIY or Call Us?

A homeowner can safely do a few things before calling: check for clogged weep holes at the base of the window track, tighten hinge screws on the door, and run a dollar bill along the weatherstripping to test for gaps. Those are diagnostic steps, not fixes.

What we recommend against is pulling a Boxabl window or door yourself. The window is set into the steel chassis with structural adhesive, not just screws, and getting it out without damaging the opening or the wall finish takes heat tools and patience. The door is simpler mechanically but heavier than it looks, and if the frame has shifted, a new slab alone won’t fix the underlying alignment. If the thought of cutting structural adhesive on a steel frame in 90-degree heat sounds like a bad Saturday, call (850) 779-4017 and let us do the sweating.

We write it down before we start so nobody is guessing mid-project.

FAQs

A second-story addition that matches the existing roofline

Getting started with Elmstead in Tampa

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