James Hardie Garage Conversion Contractor in Dallas: What to Know First
If you own a home in Dallas clad in James Hardie siding and you’re planning to convert the garage, you need a contractor who understands how that siding ties into the new living space. We’re Lodgewick ADU Dallas, and we handle these conversions from the first framing inspection to the final coat of paint. A typical garage conversion in Dallas runs anywhere from $80,000 to $150,000 depending on whether you’re adding a bathroom, what the foundation needs, and how much of the existing Hardie siding we have to cut, patch, or blend. We give you a written price before any work starts, and that price doesn’t change at the door. If you’re still in the planning stage, call (361) 204-4652 and we’ll walk you through what your specific garage will take.
How James Hardie Products Fail – and How We Fix Them
James Hardie makes a good product, but garage conversions put stress on siding in ways a normal exterior wall never sees. Here’s what we run into on Dallas jobs.
- HardiePlank lap siding butted tight against the old garage slab. When we convert a garage to living space, the floor typically gets raised and insulated, which changes the exterior grade line. If the bottom course of HardiePlank was installed tight to the old slab, that course now sits buried or wicks moisture. We pull the bottom two courses, flash the transition with metal Z-flashing, and re-install with the factory-required 6-inch ground clearance.
- HardiePanel vertical siding around the old garage door opening. Once the overhead door comes out and a wall goes in, the panel seams rarely line up. You see a patchwork of caulk and odd cuts. We re-sheath the opening and install full HardiePanel sheets matched to the existing reveal, then prime every raw edge with Hardie’s recommended primer before paint, because edge wicking is the #1 cause of premature failure on cut panels.
- HardieTrim boards cracking at fastener points. HardieTrim is dense and brittle. When a garage door opening gets framed in, the new corners and window surrounds often crack within a year if the installer over-drove nails or used the wrong fastener pattern. We hand-nail or use the specified corrosion-resistant screws with a 3/4-inch setback, and we pre-drill near board ends. That’s the difference between a trim job that lasts ten years and one that splits in the first freeze-thaw cycle we get in Dallas.
- HardieSoffit panels getting punctured during electrical rough-in. New circuits for a garage conversion have to go somewhere, and electricians often run them through the existing soffit. HardieSoffit is brittle once it’s up, and a careless drill hole becomes a visible crack. We coordinate the rough-in so soffit panels come down before wiring goes through, then get re-installed properly, with new panels ordered if any crack beyond repair.
- Faded or chalked color that makes patching obvious. James Hardie’s ColorPlus finish fades in the Dallas sun, especially on south and west exposures. If we patch with fresh pre-finished product, you see the color difference immediately. On most conversions we plan for a full repaint of that elevation using a high-quality acrylic exterior paint matched to the existing color, so the new wall doesn’t look like a patch.
Our James Hardie Garage Conversion Contractor Process
Here’s how a garage conversion with James Hardie siding goes when we’re on the job.
- 1
Site walk and written estimate. We measure the garage, check the foundation, look at the existing siding condition, and hand you a written price. No call-back pricing games.
- 2
Permitting and plan coordination. A garage conversion in Dallas requires permits, and we pull them. We handle the drawings, the city submittal, and the inspections.
- 3
Structural and envelope work. The garage door comes out, the new wall gets framed and sheathed, and we address the siding transitions at the same time, because doing it in one pass means fewer cracks and fewer leaks later.
- 4
Rough-in and insulation. Electrical, plumbing if you’re adding a bath, and full insulation. This is where we protect the surrounding Hardie siding from damage rather than treating it as an afterthought.
- 5
Drywall, finish work, and siding blend. Walls close up, trim goes in, and we cut, patch, flash, and paint the Hardie siding so the exterior looks like it was always this way.
- 6
Final walkthrough. Russ Delmar walks every finished unit himself before you get the key. If the punch list isn’t done, the invoice doesn’t go out. That’s just how we run it.
What James Hardie Garage Conversion Contractor Costs in Dallas
You should know the numbers before you commit to anything. Here are honest ranges for the James Hardie siding portion of a garage conversion in Dallas.
- Patch and blend around a removed garage door: $2,500 to $6,000 depending on siding type, panel matching, and paint scope.
- Replace damaged HardiePlank courses: $1,200 to $3,500 per wall section, including flashing and paint.
- Full exterior repaint after conversion: $4,000 to $9,000 for a typical two-car garage exterior.
- New Hardie siding on the converted wall only: $3,500 to $8,000 installed, painted, and flashed.
What moves the price: whether your exact Hardie color is still available, how much trim we have to custom-match, and whether the existing install was done right to begin with. Most of the cost overruns we see on Hardie work come from fixing somebody else’s bad flash or bad cuts. Call (361) 204-4652 for a written estimate on your specific garage. Estimates are free.
Why Dallas Homeowners Call Lodgewick ADU Dallas for James Hardie Work
We’re the ADU company of the Kingswell family, and every job runs on The Kingswell Guarantee: a written price before work begins, a defined arrival window, a clean job site, and a written guarantee on every project. If the work isn’t right within 365 days, we come back and make it right. No arguing, no invoice. That’s the 365-Day Done Right Promise, and it’s in writing before we start. Our crew wears uniforms, passes background checks, and knows these siding systems because we’ve cut and flashed more Hardie on conversions in Dallas than we can count. If your project calls for a different ADU approach, we also work with Abodu, Cover, and Dvele systems. We are an independent James Hardie service provider, not a factory-authorized dealer, which means we tell you what’s actually best for your home, not what the manufacturer’s sales rep wants sold this quarter.
FAQs
Will converting my garage void the James Hardie siding warranty? The siding warranty itself is not tied to the occupancy of the building, but improper cutting, fastening, or flashing during the conversion can give Hardie a reason to deny a claim for related failures. That’s why we follow the published install specs for every cut and every transition, and we document the work with photos in case you ever need to file.
Can you match my existing James Hardie color? Usually, yes. If the ColorPlus finish on your home has faded, we recommend a full repaint of the affected elevation rather than spot-touching fresh pre-finished product that will look visibly different. We can color-match to the existing shade and use a high-quality exterior acrylic.
How long does a garage conversion take in Dallas? A standard attached garage conversion with a bathroom addition typically runs 10 to 14 weeks from first inspection to final walkthrough. The siding work usually happens in two phases: one during the framing and one after the drywall is up.
Do you repair Hardie siding on a garage without doing a full conversion? Yes. We handle siding-only repairs and patch jobs on existing Hardie installations, whether you’re planning a conversion later or just need water damage fixed now. Call (361) 204-4652 for a straight answer on what it’ll cost.
What’s the biggest mistake contractors make on Hardie siding during a conversion? Rushing the flashing at the floor-to-wall transition on the new living space. The old garage slab sits low, the new insulated floor sits higher, and if water gets behind that bottom course, the framing rots from the inside. We flash it properly and inspect it before we close up. That’s the kind of thing that separates a conversion that lasts from one that needs a tear-out in five years.
Call Lodgewick ADU Dallas
If you have a James Hardie-clad garage and you’re serious about converting it, call (361) 204-4652 for a free estimate. Russ Delmar and our whole crew will give you a written number, a real arrival window, and a guarantee in writing. If we wouldn’t let our own family live in it, it’s not done yet.
Written by Russ Delmar, Owner, Lodgewick ADU Dallas at Lodgewick ADU Dallas, serving Dallas and nearby areas.
