Cover Garage Conversion ADU: The Los Angeles Owner’s Guide
If you own a Cover-built garage conversion ADU in Los Angeles and a door, window, or envelope component has failed, we stock and install Cover-compatible replacement parts, with most swaps priced between $350 and $1,450 installed depending on the component. Most owners discover the failure the same way: a door that no longer seals against the June marine layer, a window crank that sheared off, or weatherstripping that’s crumbling after three or four Los Angeles summers. We can usually get the right part matched to your Cover unit within two to three business days, and our crew handles the full replacement.
Which Cover Models This Applies To
Cover produces panelized ADUs in a few standard footprints, and the parts we replace most often are the entry door assemblies, aluminum-frame windows, and the perimeter seal systems where the wall panels meet the foundation. The compatibility gotcha with Cover units is this: the wall panel thickness varies between their earlier 2018-2021 builds and the current generation, which means the door jamb depth and window flange depth are not interchangeable, even when the rough opening looks identical. Before ordering, we measure the jamb depth and check the serial tag on the unit’s electrical panel door, which lists the build year and factory lot code. For most Cover components, we recommend OEM-spec parts rather than generic aftermarket, because Cover’s aluminum window extrusions use a slightly narrower frame profile than standard residential windows, and a generic replacement rarely seats correctly without modifying the panel opening.
Signs Your Cover Garage Conversion ADU Is Failing
- Door won’t latch or drags against the frame: This is usually thermal movement in the panelized wall, which shifts seasonally in Los Angeles’s wet-dry cycles. The strike plate needs realignment or the hinge pack has sagged.
- Condensation or fogging between double-pane window glass: The glazing seal has failed. In LA, afternoon sun on a west-facing Cover unit accelerates seal failure faster than any other exposure, and once fog forms, the insulated glass unit needs replacement.
- Draft or visible daylight around the entry door perimeter: The compression weatherstripping Cover installs at the factory breaks down after four to six years, especially on units that face direct afternoon sun in the Valley or on the Eastside.
- Window crank or sash hardware snapped or stripped: Aluminum hardware corrodes near the coast, and grit from dry Santa Ana winds accelerates wear on the crank gears. The crank assembly is replaceable without swapping the whole window.
- Water staining on the interior drywall near the wall-to-floor connection: This points to a failed sill gasket or perimeter seal at the panel base. If caught early, it’s a reseal job; left alone, it leads to subfloor rot that becomes a much larger repair.
Replacement Cost & What’s Included
Installed replacement pricing for Cover garage conversion ADU components in Los Angeles runs in this range:
- Entry door weatherstripping and threshold reseal: $180 – $320 installed
- Window crank or sash hardware replacement: $140 – $280 installed, per window
- Insulated glass unit replacement (fogged double pane): $380 – $750 installed, per window
- Full entry door assembly replacement: $850 – $1,450 installed, depends on door width and jamb depth
- Perimeter sill gasket replacement (partial wall run): $400 – $900 installed
Every price we give is a written, line-item price before work starts, and it includes the part, labor, disposal of the old component, and a written guarantee under the 365-Day Done Right Promise. The range on door assemblies comes down to whether your Cover unit was built before or after 2021, because the jamb depth changed and older units sometimes need a custom-shimmed frame. Russ Delmar has walked enough of these jobs in Eagle Rock, Highland Park, and the Valley to know that a Cover unit’s failure point is usually the seal, not the structure, and he prices the fix honestly rather than selling a full rebuild.
DIY or Call Us?
You can safely check a few things before calling: confirm the serial tag on the electrical panel door so we know the build year, photograph the failed component with a tape measure for scale, and note whether the problem gets worse in the late afternoon when the wall is hottest. What you should not attempt is removing a Cover wall panel or cutting into the aluminum window frame to force a generic replacement to fit. The panelized walls carry structural load, and cutting the wrong flange can compromise the entire corner connection. Entry door swaps on these units involve tensioned hinge packs and precisely shimmed jambs, and a door that’s hung a quarter degree off will bind within weeks. Call us at (254) 602-5618 and we’ll match the part to your specific Cover build and have a tech out to swap it correctly.
FAQs
Plan on four to seven years for compression weatherstripping and window hardware, and eight to twelve years for insulated glass units, depending on sun exposure. Coastal units in Santa Monica or Playa del Rey lose hardware faster to salt corrosion, while Valley units lose seals faster to heat. Call (254) 602-5618 and we’ll assess your specific unit’s age and exposure.
Some components can, yes: door strike plates can be realigned, window cranks can be swapped without replacing the sash, and early-stage sill seal gaps can be re-caulked. Fogged double-pane glass cannot be repaired, only replaced. We’ll tell you honestly which applies to your unit after a quick inspection.
A window crank or weatherstripping swap takes under two hours on site. A full entry door assembly or insulated glass unit takes half a day, including cleanup and a final seal check. We schedule a specific arrival window and keep it.
We stock common Cover-compatible weatherstripping, window hardware, and door thresholds in our service van, and we order OEM-spec insulated glass and door assemblies directly, matched to your unit’s serial tag. We also work with parts for Abodu and Dvele units, and we can usually have the correct component in hand within two to three business days.
Written by Russ Delmar, Owner, Lodgewick ADU Builders at Lodgewick ADU Builders, serving Los Angeles and nearby areas.