Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Belgard Home Additions & ADU: The Houston Owner’s Guide
Belgard home additions and ADU construction in Houston typically runs $45,000 to $130,000 for a complete addition, and $90,000 to $220,000 for a detached ADU, depending on square footage, foundation method, and finish level. Most Houston homeowners call us after a specific failure: a concrete paver wall that’s shifted with the clay soil, a retaining edge that’s pulled away from a slab, or a doorway threshold that no longer seals after two or three summers of Houston heat and expanding gumbo clay. Those are the symptoms that bring families to this page, and they’re almost always repairable.
The written price comes before any work begins. That’s a promise we make on every project, and it matters more on additions than anywhere else. A $120,000 ADU is not a job where you find out the real number halfway through. Drop cloths go down, shoe covers go on at the door, and Graham Stein reviews the scope with you before the first tool comes out of the truck.
Which Belgard Models This Applies To
Belgard’s product line splits into two families that matter for Houston additions and ADUs: interlocking concrete pavers (used for walkways, patio floors, drive aprons, and outdoor living spaces attached to the addition) and modular retaining wall blocks (used to hold grade, frame raised patios, or level a steep Meyerland or Heights lot before a slab goes down). The compatibility question usually isn’t about a single model number. It’s about the series: Belgard’s Holland Stone, Urban Stone, and Dublin Cobble lines are the three most common paver series in Houston’s residential market, while Anchor and Diamond Pro are the frequent retaining wall choices.
Identifying what you have is straightforward: check the top face of any paver for the Belgard stamp, then measure thickness. Houston installers typically use 60mm pavers for pedestrian surfaces and 80mm for driveways or areas that will carry vehicle weight. The most common mismatch we see is an owner who has 60mm pavers on a walkway and a contractor quoting 80mm replacements. That changes the underlayment and the price. For retaining walls, the gotcha in Houston is mortarless versus mortar-set. Most Belgard retaining walls are mortarless dry-stack, but many Houston builders mortar-set them against the clay movement, which changes how a repair is approached.
Elmstead Remodeling Houston is an independent service provider and is not affiliated with Belgard. We install and repair Belgard-compatible materials alongside other named brands we work with daily, including KraftMaid, Cambria, and Silestone.
Styles & brands we work with
Signs Your Belgard Home Additions & ADU Is Failing
- Pavers sinking or lipping at the threshold. Houston’s clay soil expands and contracts sharply. Water pools at the edge where the paver meets the slab, the sand base washes out underneath, and the paver tips. This is the single most common failure on Belgard patios and walkways tied to home additions in Houston.
- Retaining wall leaning into or away from the addition. Nearly always drainage. Houston’s rain comes in short, heavy bursts, and a wall without weep holes or proper gravel backfill holds that water, hydraulically pushing the wall. You see this a lot in Bellaire and West University, where lots are flat and water has nowhere to go.
- Gaps widening between pavers at the expansion joint. Where pavers meet a foundation wall or a concrete step, the joint should stay consistent. When it’s a quarter-inch wide one month and a half-inch the next, the base course has failed and is shifting.
- Efflorescence heavy enough to look like white paint. Some mineral bloom is normal. A thick, recurring crust means water is moving through the bed continuously, which is a drainage issue, not just a cosmetic one.
- Loose or rocking pavers scattered across the surface. One or two can be reset. Ten or more means the edge restraint has failed and the whole field is slowly spreading. That’s a re-set job, not a spot fix.
See the difference
Before
After
Before
After
Before
AfterReplacement Cost & What’s Included
In Houston, a Belgard-compatible addition or ADU project typically lands between $45,000 and $130,000 for a home addition and $90,000 to $220,000 for a detached ADU. Within those ranges, the big drivers are foundation type (pier-and-beam repairs cost differently than slab-on-grade), whether the existing roofline ties in cleanly or needs modification, and the level of finish. Garage conversions near the Energy Corridor, for example, often come in at the lower end, $30,000 to $80,000, because the structure already exists.
For paver and hardscape repair scoped within a larger addition, the line items are more modest and usually run between $3,500 and $11,000 depending on square footage and how much base excavation is required. Every quote we write includes parts, labor, haul-off of failed material, new base course, and the walkthrough. The 365-Day Done Right Promise covers the completed work. If it isn’t done right after we’ve left, we come back and make it right.
DIY or Call Us?
What a homeowner can safely do is simple: photograph the failure, measure the affected area, and check whether water is pooling anywhere near the problem. That tells us half the story before we arrive. What a homeowner should not do is start pulling up pavers and digging out the base. This is not a dangerous part like a high-tension garage spring or an electrical panel, but it does involve pattern layout, base compaction, and drainage correction. When the repair is done wrong, the same pavers fail again in 18 months, and now you’ve paid twice.
The question that matters is whether this is a paver field that can be re-set and re-compacted, or a drainage problem that needs a French drain or new swale first. In Houston, it’s usually the drainage. Call us at (254) 272-5240 and we’ll walk the site with you before any check changes hands. A written price and a covered floor before any work begins – that is where the trust starts.
FAQs
A properly installed Belgard paver surface in Houston typically lasts 20 to 30 years before the base course needs attention, though edge restraint and drainage corrections are often needed at the 10 to 15 year mark because of the clay soil movement. The pavers themselves last longer than the base. Call (254) 272-5240 if you want us to assess your specific patio or walkway.
Yes, if the blocks are intact and the failure is from water buildup or a compromised base, the wall can usually be dismantled, the drainage corrected, and the blocks re-stacked. The repair is often a third to half the cost of replacement. We’ll tell you honestly if the blocks are too far gone to reuse.
A paver re-set or patio repair near a Houston addition typically takes two to four days depending on square footage and base work. A full home addition or ADU runs on a much longer timeline, usually several months, and we give you a written schedule before we start. Nobody should ever go to bed surprised about what’s happening the next morning.
We keep common Belgard-compatible pavers and matching edge restraints on hand for Houston’s most popular series, and we source less common lines same-week from local Houston suppliers. If you have an older or discontinued series, we can usually find a color-matched alternative or source the original through our supplier network.
If your Belgard home addition or ADU has a failing paver field, retaining wall, or drainage issue, call Elmstead Remodeling Houston at (254) 272-5240. We’ll come look, give you a written price before any work begins, and leave the house cleaner than we found it.
Written by Graham Stein, Owner, Elmstead Remodeling Houston at Elmstead Remodeling Houston, serving Houston and nearby areas.
