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Mighty Buildings Windows & Doors: The Pompano Beach Owner’s Guide
We stock and install Mighty Buildings-compatible windows and doors across Pompano Beach, with most replacements running $4,500-$15,000 for standard window jobs and $8,000-$25,000 for impact-rated installations. Most Mighty Buildings units we see in Pompano Beach are the prefabricated panel systems shipped to Florida between 2019 and 2023, where the aluminum frame thermal breaks and the dual-pane seals face accelerated wear from our salt-laden coastal air. Owners usually discover the problem when a window won’t stay open on its own, when condensation appears between panes that won’t wipe away, or when a door slab starts catching on the jamb after the composite frame shifts in our summer humidity cycles.
Which Mighty Buildings Models This Applies To
Mighty Buildings shipped three primary window and door configurations to the Florida market: the MB-1 Series fixed and operable vinyl windows (2019-2021), the MB-2 Series thermally broken aluminum frames with low-E glass (2021-2023), and the limited MB-Impact line rated for HVHZ zones including Broward County. The MB-1 units carry a stamped label in the top rail of the sash, visible when you slide the window open, showing a 10-digit serial starting with “MB1-FL.” The MB-2 labels moved to the frame edge and start with “MB2-HVHZ” for the impact-rated variants.
The compatibility gotcha we run into most often in Pompano Beach: Mighty Buildings used two different jamb depths depending on whether the unit was factory-installed in their ADU shells or retrofitted into conventional framing. The ADU-spec jambs run 4-9/16 inches, while retrofits are typically 3-1/4 inches. Ordering the wrong depth means the interior trim won’t seat flush, and we’ve seen homeowners in Harbor Village eat a three-week reorder delay because the initial measurement grabbed the sash width instead of the frame depth.
On OEM versus aftermarket: Mighty Buildings sources their glass from Cardinal IG, but the extrusions are proprietary. We can match Cardinal’s LoE-272 or LoE-366 coatings through our distributor, but the frame extrusions require either factory order or a custom-milled aluminum replacement that we fabricate in-shop. For most Pompano Beach customers, the aftermarket frame with OEM-equivalent glass saves 15-20 percent and carries the same Miami-Dade notice of acceptance when properly spec’d.
Signs Your Mighty Buildings Windows & Doors Is Failing

- Sash won’t stay open or slams shut. The coil balance system in MB-1 and MB-2 double-hungs uses a constant-force spring cartridge that corrodes in our salt air; once tension drops below 8 pounds, the sash becomes a counterweight with no counter. We replace the cartridge, not the whole sash, unless the pivot bar is also worn.
- Fog or condensation between panes that you can’t wipe off. This means the insulating glass unit (IGU) seal has failed, letting moist Pompano Beach air into the argon-filled cavity. The desiccant inside the spacer bar saturates in 2-4 years of Florida exposure once the seal breaches, and the glass is done, not repairable.
- Door sticks or rubs at the top corner, especially after rain. Mighty Buildings’ composite frame material expands at a different rate than the aluminum threshold; in our humidity, the frame swells while the threshold stays put. The fix is resetting the frame with composite-compatible shims, not planing the door, which voids the fire rating.
- Visible corrosion pitting on exterior aluminum cladding. Pompano Beach’s coastal corrosion zone, within 3 miles of the Intracoastal, attacks anodized aluminum that isn’t marine-grade. MB-1 frames used 6063-T5 alloy with standard anodizing; we upgrade replacements to 6063-T6 with a 25-micron anodized finish or Kynar 500 paint.
- Hardware operates roughly or the multipoint lock won’t engage all points. The MB-2 French and sliding doors use a Fuhr or Hoppe multipoint system; the salt air cakes the mechanism and the points fall out of alignment. Lubrication helps for a season, but once the cam wears, the whole mechanism needs replacement to maintain the impact rating.
Before
AfterReplacement Cost & What’s Included
| Scope | Typical Range in Pompano Beach |
|---|---|
| Single window replacement (MB-1 or MB-2, standard size) | $450-$1,200 |
| Full window replacement, typical Pompano Beach home (10-15 units) | $4,500-$15,000 |
| Impact-rated window replacement (MB-Impact or HVHZ retrofit) | $8,000-$25,000 |
| Mighty Buildings entry door with frame reset | $1,800-$4,500 |
| Sliding glass door, multipoint lock included | $2,200-$5,500 |
What drives the range: unit size, whether the original frame can be preserved (insert replacement) versus full-frame tearout, and whether we’re matching existing interior trim or replacing it. Impact-rated glass adds roughly 40 percent to the material cost but is non-negotiable in Broward’s HVHZ zone, per the Florida Building Code.
Every replacement includes removal and disposal of the old unit, installation per manufacturer spec, exterior seal with OSI Quad Max or equivalent, interior trim repair or replacement, and a written warranty on both parts and labor. Under Clause 1 of the Haven Standard, you get the full written price before anyone picks up a tool. No change proceeds without a signed change order. Our 365-Day Done Right Promise covers the installation; glass defects carry the manufacturer’s warranty, which we file on your behalf.
DIY or Call Us?

There’s a short list of what a Mighty Buildings owner can safely check: verify the serial label location, measure the frame depth with a tape measure (not the sash), and photograph any corrosion or seal failure for documentation. Beyond that, the risks stack fast.
Window and door replacement in Florida involves working at height, handling heavy tempered or laminated glass that can shatter unpredictably if edge-damaged, and maintaining the continuous water barrier that our rain events demand. The MB-2 impact units weigh 8-12 pounds per square foot; a 6-foot slider is a two-person lift minimum, and a dropped corner on a tile floor is a $400 mistake before installation starts. More critically, improper flashing or sealant application voids the HVHZ rating and invites water intrusion that won’t show until the wall cavity is rotted.
We carry Mighty Buildings-compatible frame extrusions, Cardinal IG units, and the correct multipoint hardware on our trucks for most common sizes. Call (754) 714-6540 and we’ll confirm fitment from your serial number before we dispatch.
FAQs
In our coastal climate, expect 12-18 years from the MB-1 vinyl units and 15-22 years from the MB-2 aluminum frames with proper maintenance. The IGU seals are typically the first failure point; we see desiccant saturation at year 10-14 on west-facing elevations that take the afternoon sun and salt spray together. Call (754) 714-6540 for an exact quote on replacement - estimates are free.
No. Once moisture breaches the IGU seal, the desiccant is saturated and the low-E coating degrades from oxygen exposure. We replace the sealed glass unit while preserving your frame, which cuts cost roughly in half versus full-frame replacement. Call (754) 714-6540 for an exact quote - estimates are free.
A single window, 2-3 hours. A full-home replacement of 12-15 units, 2-3 days with sequencing to maintain security overnight. We don’t leave open rough openings; temporary secure panels go in if weather delays the final install. Call (754) 714-6540 to schedule - estimates are free.
We stock MB-1 and MB-2 compatible frame extrusions, Cardinal IG replacements in common sizes, coil balance cartridges, and multipoint lock hardware for the Fuhr and Hoppe systems. Proprietary Mighty Buildings extrusions require a 10-14 day factory order; we keep the measurements on file to expedite reorder if your size isn’t on the truck. Call (754) 714-6540 to check current stock against your serial number - estimates are free.
We also stock and install parts for KraftMaid cabinetry, Cambria and Silestone surfacing, and fifty-plus other vetted brands - the sourcing depth that lets us put honest numbers in writing.
Measure twice, say it once, show your work. That’s how we’ve kept projects within a few percent of the agreed price across 4,000-plus jobs since 2007. If your Mighty Buildings windows or doors are showing any of the symptoms above, call (754) 714-6540 to schedule your free estimate. We’ll review your serial numbers, confirm what’s in stock, and deliver a written price before any work starts - because Clause 1 of the Haven Standard is the whole point.
Written by Grant Rowan, Owner, Rowan Construction Group Pompano Beach at Rowan Construction Group Pompano Beach, serving Pompano Beach and nearby areas.







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