Cover ADU in Selma, TX | Seedling ADU San Antonio
We provide independent Cover ADU service across Selma, TX, from panel repairs and door realignment to full studio and 1-bed builds. The thing that sets our Cover work apart here is the clay: Selma’s expansive soils move with every wet-dry cycle, and Cover’s panelized walls react to that movement in predictable ways we plan for before the first panel goes up. If you’re dealing with a sticking door, a separating wall seam, or planning a new Home Addition Contractor - Selma build, call (210) 981-6358 for a free estimate from a team that works with these units every week.

Why Selma Residents Choose Us for Cover Service

Most builders in the San Antonio area know traditional stick framing. Cover builds differently. Its panels are fabricated off-site to tight tolerances, then assembled on your Selma lot as a structural shell by a Garage Conversion Contractor in Selma. When something shifts, the fix isn’t always obvious to a general contractor who’s never touched a panelized system. We have. Our crew has repaired and built Cover ADUs across Selma and knows what a healthy seam looks like versus one that’s starting to separate from soil movement.
Ben Ortega leads our ADU work, and he’s the first to say that a Cover unit on Selma clay needs a different foundation approach than the same unit on rock. He grew up in East Los Angeles, learned framing in a vocational program at East Los Angeles College, and spent years on residential jobs across Southern California before moving to Texas. Around San Antonio, including builds near the King William Historic District, he’s learned this region’s soil, permitting rhythm, and summer heat the hard way: by building through them. “Tell me what you need the space to do, and we’ll figure out the rest from there.” That’s how he opens most conversations, and it’s how we approach every Cover job in Selma.
We are an independent Cover service provider. We are not manufacturer-affiliated or authorized. That independence means we recommend what’s right for your Selma lot, not what a corporate program tells us to sell.
Common Cover ADU Problems We Solve in Selma
- Sticking or binding doors and windows from slab movement. Selma’s clay-heavy soils expand when wet and contract during dry spells. That movement transfers through the slab into Cover’s panel connections, which can shift door and window frames by as little as 1/8 inch. That’s enough to make a door drag. We realign panels, adjust framing, and where needed re-level the affected section.
- Perimeter flashing separation at roof-wall intersections. Cover’s roof-wall junction uses perimeter flashing that’s precise when installed. But thermal movement from Selma’s hot summers, combined with clay soil shift, works that flashing loose over two or three seasons. We see it most often on west-facing elevations. The fix is removal, inspection of the underlayment, and reinstallation with Cover-specified fasteners.
- HVAC condensate line blockages in humid summers. Selma humidity pushes mini-split and ducted units hard from May through September. Condensate lines in Cover ADUs are routed through tight panel cavities. When algae or debris builds up, water backs up and overflows inside the wall cavity. We clear the line, check the drain pitch, and add a float switch where needed.
- Gaps opening at wall-to-floor edge trim from slab heave. When Selma clay pushes a slab edge up even a quarter inch, the interior edge trim separates from the floor. It’s a cosmetic issue most of the time, but it can signal real structural movement underneath. We check for both before deciding whether a simple re-secure will hold or the slab needs attention.
- Wall panel damage from impact or moisture intrusion. Whether it’s a lawn mower strike, a wind-blown branch, or water getting behind a seam, damaged panels break the airtightness Cover relies on. For damage beyond 30% of a wall section, we recommend replacing the panel rather than patching, because a patch on a structural panel compromises the whole system’s performance.
Cover Service in Selma: What Local Conditions Mean for Your Equipment
Here’s a fact that matters if you’re planning a Cover ADU in Selma: the Retama Springs HOA specifically allows detached ADUs only if they do not exceed 800 square feet and match the primary home’s exterior materials. That restriction makes Cover’s compact panelized models a frequent fit, but it demands careful elevation planning to avoid variances. Push past 800 square feet and you’re applying for an exception. Use exterior finishes that don’t match the main house and you’ll get flagged. Cover’s Studio and S Series fit neatly under that threshold in most configurations, which is why we see so many of them in Retama Springs. But the elevation needs thought. A panelized shell on a slab that’s slightly too low can funnel water toward the foundation during Selma’s heavy afternoon thunderstorms. We plan slab height and drainage before the panels arrive, because fixing a low slab after the fact means tearing out what you just built. That’s also why our pricing conversations in Selma always start with the lot, not the floor plan.
Cover Models & Products We Service in Selma
We work on the full Cover lineup: the Studio, S Series (one bedroom), M Series (two bedroom), and L Series (larger custom configurations). Each behaves a little differently under Selma conditions. The Studio’s smaller footprint means less slab contact and generally fewer soil-related issues. The M and L Series, with longer wall runs and more roof area, are more sensitive to thermal movement and need more attention at flashing and seam details.
Our parts approach is straightforward: where structural integrity is at stake, we use Cover’s specified fasteners and sealants. For non-critical finishes like interior trim or cabinet hardware, we source quality aftermarket equivalents to keep costs reasonable without sacrificing function. That balance matters for Selma homeowners who want their ADU to last twenty years but don’t want to pay luxury-brand markups on every last screw. We keep the most common Cover-specific hardware on hand in our San Antonio service yard, which means shorter turnaround for Selma jobs.
Cover Service Pricing in Selma
What you’ll pay depends on what’s actually wrong and what it takes to fix it correctly. Here are our typical Selma ranges:

- Diagnostic visit with written findings: $125 – $200, credited toward repair if we do the work
- Door or window realignment (single opening): $250 – $600
- Flashing repair at roof-wall intersection: $400 – $900 per elevation
- HVAC condensate line clearing with float switch install: $200 – $450
- Wall panel replacement: $1,800 – $4,000 depending on panel size, access, and finish matching
- New Cover Studio ADU complete build: $140,000 – $190,000 depending on site work, foundation requirements, and interior finishes
- New Cover S Series (1-bed) build: $190,000 – $250,000
These are estimates based on recent Selma projects. A free site visit gets you a written, line-item price before any work starts. Call (210) 981-6358 and Ben or one of our team will walk the job with you.
Serving Selma, TX - Our Local Coverage Area
We’re based in the Selma area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs – Cover ADU in Selma
Yes, but only with the right foundation design. Selma’s expansive clay means a standard slab pour will eventually crack or heave under a Cover ADU’s panelized load. We recommend a foundation system that accounts for soil movement, typically a reinforced slab with proper grading, drainage, and sometimes soil treatment or deep piers depending on your lot. The panels themselves are strong. The ground they sit on is what needs the planning.
Retama Springs caps detached ADUs at 800 square feet and requires exterior materials to match the primary home. We prepare the documentation the HOA needs: elevation drawings, material schedules, setback measurements, and the grading plan. Most Cover Studio and S Series configurations fit the size limit, but we’ll flag any elevation or finish issues before you spend money on an application. Call (210) 981-6358 if you want us to review your plat and HOA packet.
This is almost always soil movement, not a door problem. Selma’s clay expands with moisture. Swollen ground pushes up on the slab, which shifts the wall panel alignment and makes the door bind. When the soil dries in winter, the slab settles back and the door swings free. The fix is stabilizing the foundation edge and realigning the affected panels, not planing the door. That’s a temporary hack that makes the real problem worse.
For superficial scratches or small dents, repair is cheaper. But if more than 30% of the panel’s surface is compromised, we recommend replacement. A patched panel won’t hold the same airtightness or structural performance, and Selma’s humidity will find the weak point. Replacement costs more upfront, but it preserves the building envelope and avoids bigger moisture problems later. For a free assessment, call (210) 981-6358.
Yes. Selma requires a mechanical permit for the mini-split or ducted HVAC system installed in your Cover ADU, separate from the building permit for the structure itself. We handle both. The mechanical inspection covers refrigerant line routing, condensate drain termination, and electrical disconnect placement. Missing that separate permit is a common problem when a handyman does the HVAC work. We make sure it’s pulled and passed.
Service Areas Near Selma
Our crew covers Selma and the surrounding communities. We regularly serve Cover service in San Antonio, Cover service in New Braunfels, and neighborhoods throughout the I-35 corridor. See our full Selma service area page or explore our Cover sales & service overview for details on everything we handle.
Book Your Cover Service in Selma Today
One call gets Ben or a senior tech on the line, a straight answer about what you’re dealing with, and a free estimate scheduled. No call center. No pressure. Call (210) 981-6358 and tell us what’s going on with your Cover ADU in Selma. We’ll take it from there.
Written by Ben Ortega, Owner at Seedling ADU San Antonio, serving Selma and the San Antonio region for several years.











