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Belgard Home Additions & ADU: The Fort Worth Owner’s Guide
A full Belgard home addition or ADU in Fort Worth typically runs $45,000 to $130,000 installed, depending on square footage, foundation work, and whether you’re building up or out. We’re a Fort Worth general contractor that plans and builds additions and ADUs with Belgard hardscape integration, from paver tie-ins to retaining walls that connect the new structure to your existing yard. Most homeowners call us after they’ve noticed cracking in the transition between the house and the new slab, or when drainage from the addition starts washing out their Belgard pavers.
Here’s the reality with additions and ADUs in Fort Worth: the structure is only as good as the site prep under it. Our North Texas clay soil expands and contracts hard with every wet-dry cycle, and a slab poured without proper compaction will move. When it moves, it pulls away from Belgard paver patios, walkways, and driveways at the seams. That’s the part most people don’t plan for, and it’s the part we see fail first on projects that weren’t built with the soil in mind.
Which Belgard Models This Applies To
Belgard doesn’t manufacture additions or ADUs. Belgard makes the hardscape systems that surround them: pavers, retaining wall blocks, permeable paver systems, and edge restraints. The compatibility question is about which Belgard product lines work with your addition’s foundation and drainage plan. We regularly tie Mirage Porcelain Pavers, Dublin Cobble, and Urbana Stone into new additions and ADU foundations across Fort Worth.
The gotcha most homeowners miss: an addition adds roof runoff that wasn’t in the original drainage plan. If your Belgard paver patio sits at the base of the new roofline, you need a paver base with proper slope and a drainage channel, or the first hard rain undermines the sand bedding and your pavers start sinking. We also see homeowners match old paver colors to new pavers and end up with a two-tone patch job because Belgard shifts dye lots between production runs. If you’re tying an addition into existing Belgard work, pull a paver, take it to a supplier, and match the actual current stock, not the catalog color.
Styles & brands we work with
Signs Your Belgard Home Additions & ADU Is Failing
- Cracks at the slab-to-paver transition. The addition’s slab is moving independently from the paver base beneath it. In Fort Worth’s clay soil, this usually means the paver base wasn’t compacted to the same depth as the foundation prep.
- Pavers sinking near the new downspouts. Roof runoff from the addition is concentrating at one discharge point and washing out the sand bedding under your Belgard pavers. You’ll see a visible dip within the first wet season.
- Gaps opening between the addition’s foundation and the patio. This is differential settlement. The house and the paver area are on different compaction planes, and the paver side is winning.
- Efflorescence (white chalky film) on retaining wall blocks near the addition. Water is wicking through the wall because the addition changed the grade. It’s not structural failure yet, but it tells you drainage isn’t working.
- ADU slab edge spalling or crumbling. This is usually a bad pour or insufficient rebar cover at the edge, made worse by Fort Worth’s freeze-thaw cycles. The exposed aggregate starts flaking within a few winters.
See the difference
Before
After
Before
After
Before
AfterReplacement Cost & What’s Included
Here’s what we quote in Fort Worth, in writing, before any work starts:
- Full home addition (400 – 800 sq ft): $45,000 – $130,000
- ADU construction (detached, 500 – 900 sq ft): $90,000 – $220,000
- Garage conversion to living space: $30,000 – $80,000
- Belgard paver patio repair (sunken or shifted): $3,500 – $11,000 for full reset
- Drainage correction at pavers: $2,000 – $6,500 depending on run length and channel type
The range depends on whether we’re working with an existing slab or pouring new, how much site grading the addition needs, and whether the Belgard hardscape around it needs resetting or full replacement. Every quote includes the written price, the scope in plain language, and the 365-Day Done Right Promise in writing. If it’s not done right, we make it right.
DIY or Call Us?
You can safely check your own drainage. Look at where your downspouts discharge after a heavy Fort Worth rain. If water pools against the paver edge or within three feet of the addition’s foundation, that’s a problem you’ve spotted, and yes, extending a downspout is a Saturday job. What you shouldn’t DIY is resetting Belgard pavers on a large scale or touching the structural connection between an addition’s foundation and existing hardscape. Pulling up 200 square feet of pavers, re-compacting the base, and getting the slope right is skilled work, and getting the slope wrong means you do it twice. If you’re seeing slab movement or foundation cracks, that’s not a pavers conversation. Call us at (682) 841-6652 and we’ll come look at the whole picture.
FAQs
A properly installed Belgard paver system with a compacted base and correct slope should last 25 to 30 years in Fort Worth, even with our clay soil, as long as the drainage from the addition was designed correctly from day one. The pavers themselves don’t fail; the base and drainage underneath them do.
Yes, if the base is still solid. We can pull the affected rows, re-compact, reset, and re-sand without touching the rest of the patio. If the base has washed out or the pavers have shifted over a large area, a full reset is cheaper long-term than patching it every two years. Call (682) 841-6652 for an exact assessment.
A home addition runs 3 to 6 months. A detached ADU runs 4 to 8 months depending on permits, utility runs, and weather windows. Fort Worth’s permit review timeline moves the schedule more than the actual build does, and we’ll walk you through that before we start.
We stock paver base, bedding sand, edge restraints, and polymeric sand on the truck for immediate transition repairs. For matching specific Belgard pavers, we pull the exact color and style from local Fort Worth suppliers to match your existing run, because the dye lots shift and we don’t guess. Call (682) 841-6652 and we’ll confirm what we need to source before the estimate.
If your addition or ADU plans in Fort Worth involve Belgard hardscape, get the site prep and drainage right the first time, or pay for it twice. We’ll put the price in writing, tell you who’s showing up, and photograph the work before and after. Call (682) 841-6652 to schedule your free estimate. The work talks. We just back it up.
Written by Luca Romano, Owner & Lead Remodeler, Sawyer Remodel Fort Worth at Sawyer Remodel Fort Worth, serving Fort Worth and nearby areas.
