Cover Garage Conversion ADU: The Fort Worth Owner’s Guide
If your Cover garage conversion ADU has a failing exterior panel, door seal, or weatherproofing component, you’re looking at a typical installed replacement cost of $340 to $1,900 in Fort Worth, depending on the part and where it sits in the building envelope. We stock the most common Cover-compatible parts on our trucks and can usually have the failed component swapped out within one visit. Most owners discover the problem the same way: a draft near the floor, a soft spot underfoot, or water staining along a seam where the prefabricated panels meet. By that point, the seal has already been compromised for weeks or months, and the longer it sits, the more likely you are dealing with framing damage behind the panel, not just a cosmetic fix.
We’re an independent Fort Worth ADU and conversion contractor, not affiliated with Cover, but we work on their garage conversion systems regularly because they’re built with modular panel assemblies that follow predictable failure patterns. Knowing which generation of Cover panel you have matters: early-run garage conversion units used a different weatherseal channel than current production, and the two are not interchangeable. If you call us, we’ll ask for the serial label location and a few photos before we head out, so the right part is on the truck the first time.
Key Takeaways
- Cover garage conversion ADU part replacement in Fort Worth typically runs $340 to $1,900 installed.
- The most common failure is weatherseal compression along panel seams, not the structural panel itself.
- We carry Cover-compatible seals, thresholds, and panel trim on our service trucks.
- Workmanship on the replacement is covered by our 365-Day Done Right Promise.
- Always confirm the panel generation before purchasing parts; early and current Cover systems are not cross-compatible.
Which Cover Models This Applies To
Cover’s garage conversion product line has shipped in two primary panel generations since the company began serving the Texas market. The first-generation panels, common in units delivered before 2021, used a narrow channel weatherseal that seats into an aluminum extrusion at the base plate. Current-production panels use a wider T-shaped gasket that overlaps the seam by about 18 millimeters. The two are visually similar, but installing a first-generation seal on a current-generation panel leaves a gap that leaks within the first heavy rain, and installing a current seal on an early panel typically pinches and tears within weeks. We check the panel stamp before we quote any part.
When a Cover garage conversion part fails, you have three routes: OEM replacement through the company’s parts channel, a quality aftermarket equivalent, or a custom-fabricated piece for retired panel lines. In Fort Worth, OEM lead times have run anywhere from three to ten weeks depending on the part. Quality aftermarket seals and thresholds from the commercial door industry often match or exceed OEM performance at a lower price and are available same-week. For retired first-generation panels that Cover no longer stocks, we fabricate replacements locally in our Fort Worth shop using matching dimensions and a more UV-resistant EPDM compound than the original. That matters in North Texas summers, where rooftop and south-facing wall temperatures can reach 140 degrees and break down original rubber parts years before the manufacturer’s general guidance would suggest.
Signs Your Cover Garage Conversion ADU Is Failing
- Drafts around the bottom plate or corner seams. The weatherseal has compressed past the point of recovery, usually because the slab settled slightly under the panel. The panel structure itself is often fine; the gasket is the sacrificial piece.
- Water staining on drywall or base trim near the floor line. This usually points to a failed threshold transition where the garage slab meets the prefab wall panel. In Fort Worth homes built on clay-heavy soil, slab movement of even a quarter inch is common, and any movement widens the gap.
- Mildew smell inside the converted space with no visible leak. Moisture has migrated behind the interior finish, usually from a joint left unsealed at the panel-to-panel connection. By the time you smell it, the cavity behind the panel has been damp long enough for mold to establish.
- Doors or windows within the converted space binding or failing to latch. In a modular system like Cover’s, doors are hung within opening frames that rely on the surrounding panels staying plumb. When the panel seat or gasket fails, slight movement changes the reveal and the door no longer closes clean.
- Visible spider-web cracking in the exterior panel coating. This is a coating adhesion failure, not just a cosmetic issue. Once the coating loses bond, the underlying panel absorbs moisture and can begin to delaminate. We see this most often on west-facing walls in Fort Worth, where late-afternoon heat cycles are brutal on factory finishes.
Replacement Cost & What’s Included
| Repair Type | Typical Fort Worth Cost Range (Installed) | What’s Included |
|---|---|---|
| Weatherseal replacement (per panel seam) | $340 – $590 | Removal of failed gasket, surface prep, new seal, tooling, disposal |
| Threshold transition rebuild | $480 – $960 | Remove old threshold, inspect subfloor, install new transition, re-seal |
| Panel trim / corner post replacement | $420 – $1,100 | Fabricate or source matching trim, install, seal all connection points |
| Panel re-coating (per wall section) | $750 – $1,900 | Surface prep, adhesion primer, two-coat factory-spec finish, sealant work |
Every quote we write for a Cover garage conversion ADU part in Fort Worth is a fixed, line-item price delivered before we order a single part or remove a single screw. That price covers the part, the labor, surface prep, fasteners, sealants, and removal of the failed component. If the number changes at any point before we start, that’s a conversation with you first, not a surprise on the invoice. The repair itself is covered by our 365-Day Done Right Promise, which means if anything we touched fails within a full calendar year of the work, we return and make it right without another invoice.
DIY or Call Us?
Replacing a weatherseal or exterior threshold on a Cover garage conversion ADU is a moderate-skill job that goes sideways in ways that are not obvious from a YouTube video. The failures we see from DIY attempts in Fort Worth typically involve two things: using the wrong adhesive for North Texas temperature swings, or over-torquing fasteners into the aluminum panel channel and stripping the extrusion. At that point, a $140 seal replacement becomes a $700 panel repair. The other honest issue is height and awkward access: panel seams that run along a wall require working from a ladder positioned close to a finished wall, and one slip with a utility knife against factory coating is a repair bill that dwarfs the original job.
What you can safely do is identify the failure and photograph it. Walk the interior perimeter of the converted space on the next rainy day and look for any dampness along the slab line. Check for visible gaps between the wall panel and the bottom plate. If you have a finish-cracked panel, take a daylight photo that shows the full wall section. Then call us at (682) 255-2399 and send the photos; we’ll tell you honestly whether this is a same-week fix or something that can wait until a convenient time. The estimate is free, and the advice is the same whether we do the work or you decide to handle it.
FAQs
A Cover weatherseal in the Fort Worth climate typically lasts 4 to 7 years before it begins showing compression failure at the slab transition, with west-facing walls trending toward the shorter end and shaded walls stretching longer. The factory EPDM compound was not formulated for the sustained 140-plus-degree surface temperatures common on North Texas exterior walls in July and August.
No repair technique restores a compressed EPDM weatherseal once it has lost its rebound, and patching a torn gasket with caulk or tape holds for a few weeks at best. We replace the seal with a fresh piece, and in some cases we re-engineer the channel with a higher-performance EPDM compound that carries a longer lifespan in Fort Worth’s UV environment.
Most panel seal, threshold, and trim replacements on a Cover garage conversion ADU take between 2 and 5 hours on site, including cleanup and a walk-around to confirm the repair is watertight. More involved work like full panel re-coating takes a full day or two depending on wall area and weather.
We carry the common Cover-compatible weatherseal profiles, threshold materials, trim stock, and panel fasteners on our Fort Worth service trucks, so most replacement jobs can be completed in a single visit. If the part requires fabrication or OEM-only ordering, we will tell you that honestly during the initial phone call and confirm a timeline before scheduling.
Written by Miles Hartwell, Owner, Sutton ADU Fort Worth, serving Fort Worth and nearby areas.
