Cover ADU Builders Nationwide

Cover ADU Builders in San Antonio: What to Know First

Benson ADU San Antonio builds and installs Cover ADUs across San Antonio as an independent service provider, not a Cover-authorized dealer. Our team handles everything from foundation prep and utility hookups to final finish work, and we’re known for putting a written price on the table before any work begins. If you own a Cover unit or you’re planning to buy one, call (430) 258-2928 and we’ll walk you through what your site actually needs.

Call (430) 258-2928

This page is for San Antonio homeowners who already have a Cover ADU on order, are considering one, or need a builder who can execute the site work Cover’s factory team doesn’t touch. Cover builds the module in their factory. That’s the easy part. What happens on your lot in San Antonio, from drainage to setbacks to tying into your existing electrical panel, that’s where we come in.

Quick reality check: a Cover ADU is a precision-built prefab unit, but it still needs a real foundation, real permits, and real site work before it becomes a legal dwelling. Troy Eastman has been building ADUs in San Antonio for several years now, including jobs near the King William Historic District where setback rules get tight. He’ll tell you the same thing every time: “The number goes on paper first. Everything else follows from there.”

How Cover Products Fail – and How We Fix Them

Cover units are well-engineered, but San Antonio’s climate and soil create specific failure points we see repeatedly. Here’s what we’ve learned fixing them:

• Foundation settlement at the module joints. Cover’s steel-framed modules sit on a perimeter foundation, and San Antonio’s expansive clay soil moves more than homeowners expect. We see hairline cracks at interior wall seams and slight door misalignment within the first two wet-dry seasons. The fix is proper soil prep before the module lands, plus re-shimming and seam repair if movement has already started.
• HVAC condensation in high-humidity months. San Antonio summers push humidity past 80% for weeks. Cover’s compact wall cavities mean the mini-split lines and condensate runs need careful insulation at installation. We’ve corrected sweaty supply lines and dripping condensate pans in units where the original install was rushed.
• Exterior cladding expansion in direct Texas sun. Cover’s panelized exterior skins expand noticeably on west-facing walls that take full afternoon heat. If the expansion gaps weren’t set correctly during install, panels can bind or bow slightly. Our fix is realigning panel fasteners and restoring factory-spec gaps before resealing.
• Utility stub-out misalignment. Cover ships with specific rough-in locations for plumbing and electrical. If the site contractor’s stub-outs are off by even two inches, the module can’t drop cleanly onto the foundation. We pre-verify every measurement against Cover’s shop drawings before concrete is poured, not after.
• Flashing failures at roof-to-wall transitions. Cover’s flat roof system relies on precise flashing details where the parapet meets wall panels. San Antonio’s intense UV breaks down cheap sealants within three to five years. We use commercial-grade flashing and sealant rated for this climate, then inspect every joint before sign-off.

Our Cover ADU Builders Process

Here’s how a Cover ADU job goes with us, start to finish:

1. 1
   Site walk and honest assessment. We visit your lot, check access, slope, soil condition, and existing utilities. We tell you what the site needs, not what sounds good in a sales pitch.
2. 2
   Written price, no verbal nonsense. You get a line-item price covering foundation, utilities, permits, and finishing work. That number doesn’t change unless you change the scope.
3. 3
   Foundation and utility rough-in. We pour to Cover’s exact specs, with stub-outs verified against the factory drawings twice before concrete goes in.
4. 4
   Module delivery and set. We coordinate with Cover’s delivery team, then handle the crane set and structural connections per the installation manual, including seismic and wind detailing required in this region.
5. 5
   Finish work and inspection. We complete electrical final connections, plumbing tie-ins, drywall touch-ups at seams, exterior trim, and any site drainage work. Then we walk the whole unit with you before the city inspector arrives.
6. 6
   365-Day Done Right Promise. One year after completion, if anything in our scope isn’t right, we come back and fix it. In writing, no arguments.

Why San Antonio Homeowners Call Benson ADU San Antonio for Cover Work

Most contractors in San Antonio will say yes to an ADU job and figure it out as they go. We don’t work that way. Every Cover project we take gets a written price before work starts, a real schedule with live updates, and techs who show up in uniform and pass a background check. You know who’s on your property and what they’re doing there.

We’re also the only builder in the region pairing Cover with other prefab options like Abodu and Dvele, plus materials from James Hardie. That matters because sometimes a Cover unit isn’t the right fit for a specific lot, and you deserve to hear that before you spend six figures. We’ll tell you straight, then put the number on paper. The 365-Day Done Right Promise backs every job, and if a covered repair fails, we come back free.