Cover Garage Conversion ADU Nationwide

Cover Garage Conversion ADU: The Upland Owner’s Guide

We stock and install Cover-compatible garage conversion ADU systems in Upland, with typical installed pricing running $85,000-$145,000 all-in from permit set through final inspection. Most Cover garage conversion projects we handle in Upland move from signed contract to certificate of occupancy in 6-10 months, depending on San Bernardino County’s current plan-check queue. Homeowners usually discover something’s wrong when the modular unit arrives but doesn’t mate cleanly with their existing garage slab, or when the city’s inspector flags a discrepancy between Cover’s shop drawings and field conditions - both scenarios we’ve handled repeatedly along the Upland Lemon Avenue corridor and near the Euclid Avenue historic district.

Call (840) 212-3065

Which Cover Models This Applies To

Cover produces several garage conversion ADU configurations, and the compatibility details matter more than the marketing name. The current Cover lineup includes the Cover Garage Studio (single-story, 400-550 square feet), the Cover Garage Suite (two-story or expanded footprint up to 750 square feet), and earlier pilot-program units installed in 2019-2021 that carry different connection details at the slab and roof junctions.

To identify your exact unit, check the metal data plate mounted on the electrical panel enclosure - it lists the model series, manufacturing date, and the specific foundation connection type (post-tension slab anchor, stem-wall bolt pattern, or floating slab isolation detail). The 2019-2021 pilot units used a 4-inch stem-wall requirement that conflicts with many Upland garage slabs poured in the 1970s-1990s, which were typically 3.5 inches with minimal rebar. Newer Cover units specify a 6-inch thickened edge, which we address with a targeted slab modification rather than full replacement.

We specify OEM Cover components where the structural or weather-sealing integration is critical - foundation anchors, roof-to-wall transition flashing, and the proprietary electrical chase grommets. For finish-level items like interior trim kits, flooring transitions, and window hardware, we source quality aftermarket equivalents that match Cover’s specs at lower lead times. Read the clause, then read the cost range - if either one surprises you, we haven’t done our job yet.

Signs Your Cover Garage Conversion ADU Is Failing

• Slab separation or cracking at the perimeter. The Cover unit’s weight distribution and the original garage slab weren’t properly reconciled during installation. In Upland, where expansive clay soils shift with winter rains and summer dryness, this shows up as a gap between the module base and the concrete edge, often first visible near the driveway apron where vehicle loading adds stress.
• Water intrusion at the roof-to-existing-house wall junction. Cover’s flashing detail requires a precise overlap sequence with the existing structure’s weather barrier. When this fails, staining appears on the interior drywall within 12-18 months of installation, typically after the first hard rain season - Upland’s January-March period is when we get the most calls.
• HVAC short-cycling or inability to maintain set temperature. Cover units ship with a dedicated mini-split system sized to the module’s envelope. If the garage’s original insulation was left in place or the ductless line set was improperly charged during field connection, the compressor works overtime and fails prematurely. We see this on units installed by generalists who didn’t read Cover’s commissioning sequence.
• Electrical panel nuisance tripping or GFI failures. The Cover electrical chase penetrates the existing garage wall to tie into the main service. If the grommet wasn’t seated correctly or the conduit fill exceeds code, moisture or rodent intrusion causes intermittent faults. Upland’s warm-season ant activity compounds this when they colonize the chase cavity.
• Doors or windows that bind seasonally. The module’s steel frame and the existing structure move on different schedules. Without the specified isolation joint and flexible trim, seasonal expansion causes operational interference. This is usually a specification miss rather than a manufacturing defect - the part was right, the interface detail was wrong.

Replacement Cost & What’s Included

Cover garage conversion ADU remediation in Upland typically ranges from $12,000 for targeted slab and flashing repairs to $45,000+ for full module removal and reinstallation with corrected foundation and utility connections. The spread reflects whether we’re fixing an interface detail or addressing a fundamental specification error from the original install.

Our line-item written quotes break out: permit amendment or new permit ($2,800-$4,500 with San Bernardino County), slab modification or replacement ($6,500-$18,000 depending on square footage and soil conditions), weather-sealing and flashing reconstruction ($3,200-$7,800), HVAC recommissioning or replacement ($2,800-$6,500), and electrical chase rebuild with proper grommet and conduit ($1,800-$4,200). Under Haven Standard Clause 1, this price is fixed at signing - no change orders, no door-side additions. Every project includes a documented photo record at each visit and our 365-Day Done Right Promise in writing.

DIY or Call Us?

There’s a clear boundary between what an Upland homeowner can safely assess and where professional involvement becomes mandatory. You can verify your Cover model from the data plate, photograph any cracks or staining for documentation, and check that exterior drains are clear of debris - all useful first steps that help us diagnose faster when you call.

What you should not attempt: slab modification (structural and permit-triggering), electrical chase disassembly (energized components and code compliance), or roof flashing removal (fall risk and weather-sealing complexity). The Cover system’s integration with your existing structure means errors in any of these zones cascade into permit failures, warranty voids, and safety hazards. We’ve rebuilt three Upland installations in the past two years where well-intentioned DIY work had to be undone before the real fix could begin. Call (840) 212-3065 and we’ll schedule a site walk - estimates are free, and we carry the full Cover specification library on our tablets.

FAQs