Home Additions & ADU in Progreso - One Fixed Price, Permits Handled

Fast, Reliable Home Additions & ADU Across Progreso

Adding square footage to a home in Progreso, TX typically runs between $45,000 and $130,000, and most ADU construction projects land in the $90,000 to $220,000 range depending on whether you’re converting an existing structure or building new from the slab up. Those are real numbers from this market, where expansive clay soil and flood-zone requirements near the bridge corridor can add costs that a contractor from McAllen might never mention until the bill arrives. Barrett & Sons Construction has been doing Home Additions & ADU work across the lower Rio Grande Valley since 1998, and we handle Progreso jobs with written change orders on everything, permits pulled on every eligible project, and Tom Barrett’s name on the contract. Call (877) 610-1318 and you’ll get a live person, not a voicemail box.

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Why Barrett & Sons Construction Is Progreso’s Preferred Home Additions & ADU Company

Tom Barrett runs this company the way he’s run it for over 29 years: his sons are on-site most days, the crews are background-checked and uniformed, and the phone rings to a person, 24/7. When a homeowner in the 78579 zip code calls about a room addition or an ADU, they talk to someone who knows what the soil out here does to a slab and why elevation certificates matter west of the bridge. That’s the kind of thing you can’t fake with a franchise.

Progreso homeowners consistently tell us the same story about the last contractor they hired: a quote given over the phone, a different number at the door, and permits treated like a suggestion. We don’t work that way. Every scope, every allowance, every price change arrives as a written change order before work happens. The permit inspector works for you, not for me, which is why we like having him on site. Ask anyone on your street, or look up the license number yourself. Tom Barrett publishes his name, his address, and his license number for exactly that reason.

If you’re planning a Kitchen Remodeling in Progreso as part of a larger addition, or adding a Bathroom Remodeling in Progreso to a new ADU, we handle that in-house rather than subbing it out to a stranger. Our Progreso customers get one contract, one schedule, and one name to call if something isn’t right. And the 90-Day Done Right Promise is written on every job we do here: if it’s not done right, Tom comes back and makes it right, one call.

Our Home Additions & ADU Services in Progreso

ADU Design & Permitting

An accessory dwelling unit in Progreso starts with questions most contractors skip: is the lot in a FEMA flood zone, what’s the soil doing under the slab, and did the original house ever get a certificate of occupancy? Much of the housing south of Highway 281 was built incrementally, sometimes without permits, which means the ADU plans often have to bring the existing structure into compliance first. We handle that. Permits pulled, inspections signed, plans drawn to match what Hidalgo County actually enforces out here, not what worked in a Meritage subdivision up north.

Garage Conversion ADU

Garage conversions in Progreso run $30,000 to $80,000, and they make sense on the small colonia-style lots where there’s no room to build out. The challenge here is the foundation. A lot of older garages were poured thin and flat on expansive clay, and by the time someone wants to live in one, the slab has heaved or cracked enough that you’re pouring new footings rather than framing on top of what’s there. We inspect before we quote, because a garage conversion that ignores the slab is a call Tom doesn’t want to get next summer.

New Detached ADU

A new detached ADU in Progreso typically runs $90,000 to $220,000, and the price difference comes down to flood elevation, utility connections, and the condition of the ground you’re building on. The black gumbo soil west of town swells with rain and shrinks in drought, which means we over-engineer the footings and, in flood-designated areas, raise the finished floor above the base flood elevation. Techo-Bloc and Cambridge pavers from our hardscape inventory often finish the walkway between the main house and the ADU, tying the two structures together instead of leaving a dirt path.

Junior ADU & Interior Conversion

A junior ADU inside the existing footprint is the most affordable way to add a legal second unit in Progreso, and on the older colonia homes it usually means converting a back bedroom or a closed-in porch that was never properly permitted. We see a lot of these: a porch somebody closed in with a wood frame and a window AC unit in 1998, now being asked to function as a kitchen with a bath. The work is really about correcting what was never done right, bringing the space up to code, and giving it its own entrance and utility subpanel.

Trusted Brands We Service in Progreso

We don’t install mystery brands off a van. On our Progreso hardscape and site prep work, we use Belgard, Techo-Bloc, and Cambridge Pavers materials you can look up, order from any supply house, and verify the specs on before we even show up. For concrete work tied to additions and ADU pads, we rely on Quikrete and Oldcastle mixes appropriate for the expansive soils here, not whatever’s cheapest at the big-box store. Keeping those brands stocked means faster turnaround for Progreso customers and fewer delays waiting on freight from Houston.

Common Home Additions & ADU Problems We See in Progreso Homes

• Slab heave and cracking from expansive clay. The black gumbo soil across Progreso swells dramatically in the rainy season and shrinks in dry heat, which moves slabs and cracks walls. Any addition has to be designed for that movement or you’ll be chasing cracks forever.
• Incremental, unpermitted construction on older colonia lots. We regularly find mixed-material additions, concrete block meeting wood frame, and electrical work that was never signed off. A new ADU often has to include bringing the original structure up to code first.
• Flood-zone elevation requirements near the Rio Grande corridor. Properties west of the Progreso International Bridge frequently sit in FEMA-designated flood zones, meaning new construction and additions require elevation certificates and flood-compliant slab or pier designs that add cost and permitting complexity.
• Heat-related material degradation and compressed work windows. Summer heat indices regularly exceed 110°F in the lower Rio Grande Valley, which shortens productive outdoor hours and accelerates wear on roofing, sealants, and caulking. We schedule pours and framing to beat the worst of the afternoon heat.

Pricing for Home Additions & ADU in Progreso, TX

We Also Serve Cities Near Progreso

Beyond Progreso, our crews work regularly in Mercedes, La Feria, Harlingen, and San Benito. If you’re just outside the 78579 zip code, call (877) 610-1318 and ask. We’ll tell you straight whether we serve your road. No trip charge inside the county, and a free second opinion on any written estimate you’ve already received.

FAQs - Home Additions & ADU in Progreso