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Blanco Home Additions & ADU: The Houston Owner’s Guide
If you’re planning a home addition or ADU in Houston and you’ve got Blanco fixtures or finishes already in the home, the short answer is this: Bradford Remodeling Co Houston installs and integrates Blanco-compatible components into new construction and addition work, with full home additions running $45,000 to $130,000 and ADU construction running $90,000 to $220,000. Most homeowners discover they need this level of work when a foundation issue, storm damage, or a growing family pushes them past the point where a smaller remodel solves the problem.
The trigger is usually one of three things: a failed load-bearing wall from years of Houston humidity and shifting soil, a Blanco sink or faucet setup that can’t be moved without reworking the substrate, or an aging layout that no longer fits how the house actually gets used. By the time you’re pricing additions, you’re not fixing a part anymore; you’re fixing the room around it. We’re an independent service provider, not affiliated with Blanco, but we work with their product lines regularly and know how their specs interact with Houston’s climate.
Which Blanco Models This Applies To
Blanco’s kitchen and bath fixtures fall into a few families that come up constantly on addition work in Houston: the Silgranit composite sinks (Precis, Diamond, and Performa series), the Steelart stainless lines, and their faucet lines including the Culina and Linus series. The compatibility gotcha most homeowners hit is this: Blanco Silgranit sinks have a tighter-than-standard bowl radius, which means the cutout template must match the exact series number printed on the underside of the sink, not just the overall dimensions. A Precis 30 and a Diamond 30 are not interchangeable templates. If you can’t read the label anymore, measure the corner radius with a straightedge; Silgranit bowls run a 10mm radius on the Precis line and closer to 15mm on the Diamond line.
For additions and ADUs, we’re typically speccing these fixtures into new cabinetry from KraftMaid or Wellborn, which we also install. The OEM decision matters here: Blanco’s warranty only covers the fixture itself, and it’s void if the installation wasn’t done to their mounting spec. A quality aftermarket mounting clip or strainer from a supplier like Keeney will hold fine, but for anything that touches the drain seal or the under-mount adhesive bond, we order OEM Blanco parts. In Houston heat, silicone bedding compound breaks down faster than in drier climates, so we use a polyurethane adhesive on under-mount installs to avoid the failure we see most often: sink edges pulling away from the substrate after three to five summers.
Styles & brands we work with
Signs Your Blanco Home Additions & ADU Is Failing
- Countertop separation at the sink edge. If you can slide a business card between the Silgranit rim and the countertop, the adhesive bond has failed. Houston’s humidity and heat cycling cause the substrate to expand and contract, and once the bond breaks, water gets into the cabinet box behind it.
- Visible movement when you press down on the sink rim. A properly mounted Blanco sink should not flex, period. Movement means the under-mount clips have loosened or the counter substrate has swelled from moisture. This is a structural warning, not a cosmetic one.
- Rust staining around the drain flange on a Steelart sink. Blanco’s stainless is a high-nickel alloy, so rust at the drain almost always points to a failed seal or a galvanic reaction from an aftermarket drain basket that isn’t spec-matched. The sink itself rarely rusts; the hardware around it does.
- Faucet base leaking or wobbling on a Blanco Culina or Linus. The O-rings in Blanco cartridges are durable, but Houston’s hard water leaves mineral scale that wears them faster than the national average. A wobble at the base usually means the mounting nut backed off or the O-ring has hardened.
- Cabinet swelling or soft spots directly under a Blanco sink. This is the trailing symptom of a leak that’s been ignored for months. By the time the cabinet box shows it, you’re usually replacing the cabinet, the sill, and possibly a section of subfloor.
See the difference
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After
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AfterReplacement Cost & What’s Included
When the failure is limited to a Blanco fixture inside an existing footprint, the fixture replacement itself runs from $350 to $1,200 in labor plus parts. But this page is for owners looking at full additions and ADUs in Houston, and those numbers are bigger for a reason. A home addition runs $45,000 to $130,000 depending on square footage, foundation work, and whether you’re tying into existing plumbing and electrical or running new service. An ADU runs $90,000 to $220,000 based on size, permitting, utility connections, and finish level.
What drives the spread is simple: foundation type, site access, and the age of your existing mechanical systems. A slab-on-grade addition with easy access and a 200-amp panel with spare capacity sits at the low end. A pier-and-beam addition with a full kitchen rough-in and a panel upgrade sits at the high end. Every Bradford Remodeling Co Houston project gets a written price before work starts, with parts and labor separated so you can see exactly what you’re paying for. The 365-Day Done Right Promise covers the completed work in writing: if it fails within a year, we return and correct it at no charge. If a Blanco fixture we installed develops a defect during that window, we handle the correction on our dime, not yours.
DIY or Call Us?
Some things on this page are safe to check yourself: read the model label on the underside of your sink, measure the bowl radius if you’re ordering a replacement, and test for movement or separation at the rim. That’s inspection, and it’s useful information when you call us.
What you should not DIY is removing an under-mounted Blanco sink, re-bedding it, or doing any structural work around it. When a sink drops, it can take the countertop, the cabinet face frame, and the flooring with it. More importantly, if you’re planning an addition or ADU, you’re working around bearing walls, foundation ties, and new utility runs. Houston’s building code has specific requirements for tie-downs on additions, and getting the flashing detail wrong on a wet wall is how you end up with mold behind a brand new Blanco vanity in year two. Curtis Lane reads a scope of work the way other guys read a box score, and he’ll tell you straight: the inspection is yours to do. The remediation is ours. Call (940) 289-7658 for an honest assessment and a written number before anything gets touched.
FAQs
A Blanco Silgranit sink is built to last 20 to 30 years under normal use, but the mounting bond underneath it typically fails in Houston between years five and eight if it was installed with standard silicone instead of a polyurethane adhesive. The fixture survives; the installation doesn’t. Call (940) 289-7658 if you’re seeing separation at the rim, and we’ll give you a straight answer on whether it’s a re-bed or a full replacement.
Yes, if the sink itself is intact and the substrate is sound, we can remove, clean, and re-bed the fixture with the correct adhesive and new mounting hardware. If the cabinet or subfloor has taken on water, repair stops being the cheaper option. Call (940) 289-7658 and we’ll tell you which side of the line you’re on before you spend a dollar.
A standard single-room addition typically runs 8 to 14 weeks from permit approval to final walk-through, and a full ADU runs 4 to 8 months depending on utility connections and finish level. The variables are permit review times, foundation weather delays, and material lead times from our documented brands. We give you a written scope and timeline before work starts, and the 365-Day Done Right Promise means the clock on our guarantee starts the day we hand you the signed completion documents.
We do not warehouse Blanco fixtures, but we have accounts with their distribution network and can get OEM drain assemblies, mounting kits, and strainers in Houston within days. We stock the installation materials that fail most often here: polyurethane adhesive, stainless mounting clips, and spec-matched drain baskets. Call (940) 289-7658 and we’ll check availability the same day.
Written by Curtis Lane, Owner, Bradford Remodeling Co Houston at Bradford Remodeling Co Houston, serving Houston and nearby areas.
