Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Home Additions & ADU Across Progreso
If you’re living in Progreso and your house has started feeling too small for the people inside it, you already know the hard part isn’t deciding to add space. While you’re planning your project, you may also want to consider whether Windows & Doors in Progreso need updating as part of the work. It’s finding a contractor who understands what your home actually is. A straight answer on cost: a home addition in Progreso typically runs $45,000-$130,000, and a new detached ADU falls between $90,000 and $220,000. Those numbers assume a contractor who pulls real permits and writes real change orders. Call Barrett & Sons Construction at (877) 610-1318 and we’ll give you a line-item written estimate for exactly what you want built, whether that’s a garage conversion, a second story, or a freestanding ADU for your grown kids or your parents.
What makes Progreso different from every other Hidalgo County town we serve is what’s standing on your lot right now. Much of the housing stock west of the Progreso International Bridge corridor grew up as colonia-style development: homes built in stages, sometimes with concrete block here and wood frame there, poured slabs in one section and pier supports in another. Adding a room or an ADU to that kind of property isn’t a clean bolt-on job. It takes a crew that knows how to look at what’s already there, bring it up to code without pretending it’s something it isn’t, and design an addition that won’t fight the soil underneath it. Tom Barrett has been running jobs like this since 1998, and his sons are the ones who show up in Progreso.
Why Barrett & Sons Construction Is Progreso’s Preferred Home Additions & ADU Company
Start with this: Tom Barrett’s name, his address, and his license number are published and verifiable. Look them up before you sign anything. That’s not a marketing line. It’s how Tom has run Barrett & Sons Construction since 1998, and it’s why homeowners in Progreso who’ve been burned by a big-name outfit with a call center tend to call us for the next job.
Every price we quote comes as a written change order before any scope change touches the job. If an allowance shifts, you get the number on paper first. The permit inspector works for you, not for us, which is exactly why we pull permits on every eligible addition or ADU project in Progreso. You’ll see Tom’s sons on-site most days, not a crew of strangers from two counties over. We serve Progreso directly from our scheduling office in the Dallas-Fort Worth area, and a live person answers the phone 24 hours a day, seven days a week. No voicemail box. No out-of-state call center.
We also publish our standing offers so there’s no guesswork: $40 off any repair over $200, a free second opinion on any written estimate you’ve gotten, no trip charge anywhere inside the county, and a permanent 10% discount for seniors and veterans. The work itself is backed by a written 90-Day Done Right Promise. If it’s not done right, one call brings Tom back.
Our Home Additions & ADU Services in Progreso
We do four types of home additions and ADU work more than anything else in Progreso, and each one has its own rhythm here. For homeowners also looking at exterior work, our Progreso Roofing services can be bundled with larger projects.
ADU Design & Permitting
An accessory dwelling unit in Progreso rarely starts with a blank lot. It usually starts with a side yard that was never platted for another structure, a flood zone map that says something you don’t want to hear, or a house that was built before anyone asked for a permit at all. We handle the design work and the permitting as one continuous job, including the elevation certificates and flood-compliant slab or pier designs that Hidalgo County and FEMA require on properties near the bridge corridor. You get the drawings, the permit, and the inspection sign-offs. The permit inspector works for you, not for us, and we’re glad he does.
Garage Conversion ADU
Plenty of Progreso homes have attached or semi-attached garages that were used as workshops, storage, or informal living space for years before anyone called the city. Converting that square footage into a legal ADU, with proper plumbing, insulation, and an electrical panel that can actually handle the load, typically runs $30,000-$80,000 in this market. The part that catches people off guard is the foundation. If your garage slab has moved with the black gumbo soil underneath it, you need to know that before you frame walls. We check it first.
New Detached ADU
When you’re building a freestanding ADU in Progreso, you’re not just adding a bedroom and a bathroom. You’re adding a structure that has to survive the same expansive clay that’s cracked driveways and slabs across the lower Rio Grande Valley for generations. A new detached ADU here typically lands between $90,000 and $220,000 depending on size, finishes, and whether we’re tying into an existing septic system or bringing new utility lines to the site. We design the foundation for the soil, not for a pretty render.
Junior ADU & Interior Conversion
Sometimes the space you need is already under your roof. A junior ADU, a converted attached sunroom, or an enclosed patio turned into a proper year-round living space can give you a rental unit or a place for aging parents without the footprint of a new structure. These jobs in Progreso often mean opening up walls that were framed with mixed materials two or three decades ago and bringing electrical and plumbing up to code. The finish work matters, but the code work is what makes it real.
If your addition plans grow into a full Kitchen Remodeling in Progreso or you’re already rethinking the Bathroom Remodeling in Progreso in the existing part of the house, we can fold that into one scope of work so you’re not living through two separate construction projects.
Trusted Brands We Service in Progreso
When we build additions and ADUs in Progreso, we build with materials you can look up. For exterior hardscape and patio areas around a new addition, we install Belgard and Cambridge Pavers, not mystery-brand products off the back of a van. For interior finish work and structural products, we carry lines our crews have installed for years and can stand behind. If you want a brand name in writing before you sign, just ask. The allowance that isn’t on paper is a surprise waiting for a date.
Common Home Additions & ADU Problems We See in Progreso Homes
- Foundation movement from black gumbo soil. Progreso sits on heavy expansive clay that swells after rain and shrinks in drought. We see slab heave, cracked stem walls, and pier systems that have shifted enough to throw door frames out of square before a new addition ever goes up.
- Mixed-material existing construction. A lot of owner-built homes in the 78579 zip code combine concrete block, wood-frame additions, and metal roofing with no single structural approach. Tying new work into that requires an engineer’s eye, not a template.
- Flood zone surprises near the bridge corridor. Properties west of Progreso International Bridge frequently fall in FEMA-designated flood zones tied to historic Rio Grande overflow. New construction and additions there need elevation certificates and flood-compliant designs that inland contractors rarely think about.
- Manufactured homes on pier systems. Many Progreso properties have mobile or manufactured homes that were set on piers decades ago. Adding a room or ADU next to one means checking the original pier condition, because the soil hasn’t been static since the home was placed.
Pricing for Home Additions & ADU in Progreso, TX
Here’s what you can expect in Progreso, in real numbers. A standard room addition runs $45,000-$130,000. A new detached ADU runs $90,000-$220,000. A garage conversion typically lands between $30,000 and $80,000. What moves those numbers inside the range is square footage, foundation type, flood zone requirements, and whether we’re working around an existing structure that needs its own remediation first. We don’t give you a lowball number and hope you won’t read the fine print. Every scope, every allowance, every price change comes as a written change order before work happens. Call (877) 610-1318 for a free, written, line-item estimate on your Progreso addition or ADU. No trip charge inside the county.
We Also Serve Cities Near Progreso
Our Progreso crews work the whole lower Rio Grande Valley, so if you live in Mercedes, La Feria, Harlingen, or San Benito, we’ll come to you the same way we come to Progreso: with a name you can verify, a written estimate, and permits pulled. Call (877) 610-1318 and ask for Tom or one of his sons.
Serving Progreso, TX - Our Local Coverage Area
We’re based in the Progreso 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 - Home Additions & ADU in Progreso
Most room additions in Progreso take 8 to 16 weeks from permit to final inspection, and a new detached ADU usually runs 5 to 8 months depending on size and flood zone work. The timeline starts when the permit is issued, not when the contract is signed. Call (877) 610-1318 and we’ll give you a written schedule with your estimate.
Yes, we work throughout the 78579 zip code, including the older colonia-style lots west of the bridge corridor and the newer subdivisions on the east side of town. We know the difference in foundation types, utility access, and permit history from block to block. That’s the advantage of a crew that’s been working the lower Rio Grande Valley for years, not weeks.
A garage conversion ADU in Progreso typically runs $30,000-$80,000, depending on whether the existing slab can be used, how much electrical and plumbing work is required, and whether the garage was ever properly permitted in the first place. Call (877) 610-1318 for an exact written quote. Estimates are free.
Only if the scope changes, and if the scope changes, you’ll get a written change order with the new number before a single nail moves. We don’t do surprise invoices at the end. The allowance that isn’t on paper is a surprise waiting for a date, and Tom Barrett has refused to work that way since 1998.
Yes. Every addition and ADU we build in Progreso is backed by our written 90-Day Done Right Promise. If something’s not done right, one call brings Tom back to make it right. That promise is written on the contract, not buried in fine print. Call (877) 610-1318 to schedule your free estimate.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Progreso since 1998.







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