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Before
AfterMighty Buildings Windows & Doors: The Fort Lauderdale Owner’s Guide
We stock and install Mighty Buildings-compatible windows and doors in Fort Lauderdale, with typical installed replacement costs running $4,500-$15,000 for window systems and $8,000-$25,000 for impact-rated door assemblies. Most standard sizes are available same-day through our network, though custom Mighty Buildings specs often need 10-14 days. Most owners discover a problem when they feel salt-air drafts around the frame, spot condensation between glass layers, or the sash won’t lock flush anymore - usually after a tropical storm season has stressed the seals.
Which Mighty Buildings Models This Applies To
Mighty Buildings produces prefabricated residential units across several product lines, and the window and door packages vary by generation. The Mighty Mod series uses standard dimensional rough openings - typically 60″ × 96″ for sliding glass doors and 36″ × 72″ for operable windows - but the fastening method differs from conventional stick-built frames. Mighty Duo and Mighty Core units shipped after 2021 use a proprietary extruded aluminum frame with integrated thermal break; earlier units used a simpler vinyl-clad system that’s now harder to source OEM.
To identify your part, check the etched code in the glass corner (usually the interior lower right) and the sticker on the frame header. The code prefix “MB-AL-” indicates the aluminum thermal-break series; “MB-VC-” indicates vinyl-clad. We carry quality aftermarket equivalents from PGT and CGI that meet Miami-Dade HVHZ certification and fit the Mighty Buildings rough openings without field modification, which matters because the factory tolerances on these units are tighter than site-built framing. Rowan Construction Group Fort Lauderdale is an independent service provider, not affiliated with Mighty Buildings.
Signs Your Mighty Buildings Windows & Doors Is Failing
- Visible moisture between glass panes. The insulated glass unit (IGU) seal has failed, allowing humid Fort Lauderdale air to penetrate. The desiccant inside becomes saturated, and the fogging will not clear - the IGU needs replacement, not cleaning.
- Sash drags or sticks in the track. The roller assembly or balance mechanism has corroded, common within 6-8 years in coastal zip codes where salt air accelerates wear. Forcing it risks cracking the frame or shattering the glass.
- Frame pulls away from the rough opening at the corners. The structural silicone or fastening clip has degraded; this is a water intrusion risk during our summer storms and can rot the OSB sheathing behind the unit if left unaddressed.
- Locking points don’t engage fully. The multi-point hardware has shifted or the keepers have worn - a security and wind-load issue, since impact-rated assemblies depend on continuous compression around the perimeter to perform under pressure.
- Exterior frame caulk is cracking or missing. UV exposure in Fort Lauderdale breaks down sealant faster than inland markets. Gaps here let wind-driven rain behind the flange, which is how we find hidden damage on Victoria Park jobs where mature tree canopy traps moisture against the wall.
Before
AfterReplacement Cost & What’s Included
For Fort Lauderdale properties, standard Mighty Buildings window replacement runs $4,500-$15,000 installed; impact-rated door assemblies run $8,000-$25,000. The spread depends on three factors: whether the unit is standard or custom dimension, whether the rough opening needs reframing (common when we find water damage behind the failed unit), and whether you select OEM Mighty Buildings spec or Miami-Dade-certified aftermarket.
Our quotes are flat and written before work starts - Clause 1 of the Haven Standard. Every replacement includes removal and disposal of the old unit, new fasteners and flashing tape, spray-foam perimeter seal, exterior grade sealant, and a documented photo record of the rough opening condition before the new unit goes in. The 365-Day Done Right Promise covers the installation; manufacturer warranty on the glass and frame passes through directly.
DIY or Call Us?
An owner can safely check the etched glass code and frame sticker to identify the series, and can clear weep holes at the sill with a piece of wire if they’re clogged with debris - that’s maintenance, not repair. What we don’t recommend: removing a Mighty Buildings window or door yourself. These units are heavier than standard site-built products (the aluminum thermal-break frames add 30-40% weight), and the integrated flashing system requires specific sequencing to maintain the water barrier. Get it wrong and you’ve compromised the wall cavity.
Under Clause 1, we’ll put the price in writing before anyone picks up a tool. Call (754) 254-7676 to schedule your free estimate.
FAQs
Expect 12-18 years for coastal-exposed units, less if the exterior sealant isn’t refreshed every 5-7 years. The salt air and UV load here is harder on frames and hardware than inland Florida markets. Call (754) 254-7676 for an exact quote on replacement - estimates are free.
No. Once the seal between glass panes fails, the inert gas escapes and the desiccant saturates. Defogging services are temporary; the only fix is IGU replacement or full unit replacement if the frame system is obsolete. We stock standard IGU sizes for Mighty Buildings-compatible frames. Call (754) 254-7676 for an exact quote - estimates are free.
A standard window replacement takes 2-4 hours per opening; a sliding glass door assembly takes a full day including trim and sealant cure time. We pull permits when required and schedule inspections so the job isn’t held up. Call (754) 254-7676 to schedule your free estimate.
We stock common roller assemblies, balance mechanisms, and multi-point hardware for Mighty Buildings-compatible systems, plus standard IGU dimensions. Custom-color frames or oversized units ship from our PGT or CGI distributor, typically 10-14 days. We’ll tell you what’s in stock before we schedule. Call (754) 254-7676 to confirm availability for your model.
Written by Grant Rowan, Owner, Rowan Construction Group - Fort Lauderdale, FL at Rowan Construction Group Fort Lauderdale, serving Fort Lauderdale and nearby areas.