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Tremron Home Additions & ADU: The Houston Owner’s Guide
A Tremron home addition or ADU project in Houston typically runs $45,000 to $130,000 for a full build, with detached ADUs landing between $90,000 and $220,000 depending on square footage and foundation work. We install and build these projects on a written scope with a fixed price before any tools come out, which is the only way a project this size should ever start. Most Houston owners call us because an existing Tremron paver patio, walkway, or driveway section has begun to fail under the addition’s new roofline or drainage path, or because the original paver install was never sloped correctly for our rainfall and the base is now washing out.
What you’re likely seeing is one of two things. Either the pavers under the addition’s drip line are sinking and separating at the joints, or you’re planning the addition and need to know whether the existing Tremron base can carry the new load. Both answers come from reading the base, not the paver. The paver itself is rarely the problem. In Houston, the base and the slope are where additions and ADU connections fail first, because our clay soil shifts with every wet-dry cycle and what looked flat in March is a birdbath by September.
Which Tremron Models This Applies To
This applies to the full Tremron paver line we commonly tie into Houston additions and ADUs: the Jacksonville series, the River series, the Bella pavers, and Tremron’s tumbled options that homeowners often choose for pool decks and walkways tied to a new ADU. The compatibility concern is almost never the paver pattern. It’s whether the existing installation has a proper aggregate base, edge restraint, and a slope of at least 2 percent away from the new structure.
Here’s the compatibility gotcha most Houston owners don’t see coming: Tremron pavers installed as a patio are not engineered to carry a room addition’s new point loads along the perimeter. When we tie an addition into an existing paver area, we’re not just setting more pavers. We’re cutting back to undisturbed soil, checking what’s under the old base, and often pulling out the first three to four feet of the old paver field to install a compacted base that can handle the new structure’s drainage and foot traffic. If you’re building a detached ADU, the paving around it becomes a drainage system first and a walking surface second. That distinction drives everything about the bid.
OEM versus aftermarket matters less for pavers than it does for the base materials beneath them. Tremron’s product is the visible surface, and we use it when the homeowner wants the pattern to match what’s already on site. But the real specification is what’s underneath: a minimum 4 to 6 inches of compacted aggregate for walkways, and up to 10 to 12 inches for driveways or any area that will carry pavers adjacent to a new slab. We call out that base depth by the foot in the written scope because that’s where the dollar amount moves in Houston, not in the paver itself.
Styles & brands we work with
Signs Your Tremron Home Addition or ADU Paving Is Failing
- Pavers have dropped along the addition’s drip line. Every Houston gutter that empties against a paver edge is cutting a trench through the base. You’ll see a sunken line of pavers following the roofline, and it will get worse with each heavy rain unless the water is piped away or the base is rebuilt with proper slope.
- Joint sand has washed out and weeds are showing through. Sand is not the structural layer. When the joints stay empty and the pavers shift underfoot, it usually means water is moving under the field and carrying the bedding sand with it. The fix is not just sweeping in more sand. It’s finding where the water is entering and correcting the grade.
- A paver edge has started to flare or separate. This is an edge-restraint failure. A concrete or plastic edge that wasn’t pinned down lets the outside course of pavers drift outward until the pattern opens up. On a Houston lot with any slope at all, that drift accelerates after the first big storm.
- Water pools against the new ADU slab after a normal rain. This is the one that gets expensive. Water sitting against a new foundation or slab introduces hydrostatic pressure over time, and in Houston’s clay soil that pressure doesn’t go away. We flag this in writing during the estimate because by the time you see a crack at the slab corner, the drainage correction is the cheap part.
- Pavers near a downspout splash block have sunk into a bowl. A single uncontrolled downspout can displace enough base material in one Houston wet season to sink a 4-by-4 paver area by several inches. The fix is extending the leader, cutting a swale, or tying the downspout into a solid drain. Then we reset the pavers on a repaired base.
See the difference
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AfterReplacement Cost & What’s Included
For the paver work tied to a Houston home addition or ADU, most replacement and reinstallation scopes run between $4,500 and $18,000 depending on how much of the old base we remove, how deep the new aggregate goes, and whether we’re tying into an existing Tremron pattern or starting fresh. The full addition itself ranges from $45,000 to $130,000 for a room addition, and a detached ADU runs $90,000 to $220,000. Those numbers assume a written scope, a fixed price, and a permit pulled by someone who knows what Harris County wants to see on the drainage plan.
Every line item is itemized. You’ll see the paver count, the base material, the edge restraint, the drainage correction, and the labor as separate charges. That way when the final invoice matches the original number, it’s because nothing was hidden at the start. For paver work and any part of the addition, the work falls under the 365-Day Done Right Promise. If the paving fails, shifts, or drains wrong inside that first year, we come back and correct it at no charge. That’s in writing, signed before the first tool comes off the truck.
DIY or Call Us?
You can safely do one thing: watch where your water goes during the next Houston rain. Note which downspouts empty against paver edges and where the first puddles form. That information makes our estimate faster and more accurate. What you shouldn’t do is pull up a sunken paver field and start rebuilding the base yourself. Most homeowners add too little aggregate, skip the compaction, and make the slope worse than it was. Then we’re charging more to fix the DIY attempt than the original failure.
If the pavers butt against a new slab, a foundation, or a gas line stub, leave it alone. Digging blind next to a new foundation is how you hit a drain line or undermine the slab’s bearing soil. This kind of repair is not about strength. It’s about getting the water away and the base right. Call us at (940) 289-7658 and we’ll read the site, explain what we’re seeing in plain terms, and put a number on it before you decide anything.
FAQs
With a proper base and drainage, a Tremron paver field should hold its finish and plane for 20 to 25 years in Houston. What usually fails first is not the paver. It’s the base washing out under the edges or at the downspouts. If the initial install had the right aggregate depth and slope, the pavers themselves are not the weak point.
Yes, and that’s usually the right call. We lift the affected pavers, remove the failed base under that section, re-compact new aggregate at the correct depth, and relay the pavers to match the surrounding field. For an isolated sunken area smaller than 40 square feet, this is a same-day repair on most Houston properties. If the problem runs along an entire foundation edge, you’re looking at a larger reset. Call (940) 289-7658 and we’ll tell you which one you have after looking at it.
A typical paver repair adjacent to a Houston addition or ADU takes one to two working days on site. That includes base removal, re-compaction, drainage correction at the problem area, and reinstallation. Larger fields or full driveways may run three to four days. We put the schedule in writing with the price so a two-day scope never turns into a two-week surprise.
We work directly with area suppliers to match existing Tremron patterns and colors, and we coordinate delivery so the pavers are on site when the crew is ready. We also work with KraftMaid, Cambria, and Silestone on the interior side of Houston additions, so the same crew can carry the project from slab to finish. Matching an older Tremron paver color takes an extra day of coordination, which we’ll note in the estimate up front.
Straight scope, straight number – that’s the whole conversation. If you’re planning a Houston addition or ADU, or you’ve got failing pavers against an existing slab, call Bradford Remodeling Co Houston at (940) 289-7658. Curtis Lane and the crew will read the site, write the scope, and hand you a fixed price before anything gets ordered.
Written by Curtis Lane, Owner, Bradford Remodeling Co Houston at Bradford Remodeling Co Houston, serving Houston and nearby areas.
