Flooring Installation for Houston Metro Homes

Yes, if anything is being glued down — and it’s cheap insurance either way. Concrete on grade pulls moisture from the soil for its whole life, and many older slabs in this region were poured with no vapour retarder beneath them. Two methods are accepted: ASTM F2170, where relative-humidity probes sit in holes drilled into the slab and are read after roughly 24 hours, and ASTM F1869 calcium-chloride domes, which measure vapour coming off the surface. Manufacturers publish a limit, often somewhere in the 75–85% RH range, and installing over a wetter slab voids the warranty. A slab can look bone dry, feel dry and still test well over the limit, because vapour isn’t visible.

You can, and it’s the highest-risk floor you can choose in this climate — we’d rather say that before you spend the money. Most homes here are slab-on-grade, so there are no joists to nail into. Solid wood then needs either a full glue-down over a moisture barrier or a plywood sleeper system, which raises the finished floor by roughly three-quarters to one inch and forces changes at doors, stair noses, dishwashers and thresholds. Solid stock also moves a lot with humidity, and indoor humidity here swings widely between a heated winter house and a shut-up August one. That shows up as gaps in one season and cupping in another. Engineered plank gives the same real timber surface with a fraction of the movement.

Start from water and traffic, not from looks. Rigid-core LVP is the sensible default for living areas and bedrooms: waterproof core, quiet underfoot, forgiving of a slab that moves, fastest to install — but it dents under heavy point loads and can never be refinished. Porcelain tile is the most durable option and the only one that genuinely doesn’t care about standing water, so it belongs in baths, laundries and entries; it’s hard underfoot, needs the flattest substrate and needs movement joints. Engineered wood is for when you want real timber and will keep it out of wet rooms. Plenty of homes end up with two of the three, and that’s a good answer rather than a compromise.

Sometimes, and it’s always worth asking, because tile removal is often the single biggest labour line on a flooring job. Going over the top works when the existing surface is well bonded, sounds solid everywhere with no hollow spots, is flat enough for the new material, and when the added height won’t trap doors, a dishwasher or the top stair riser. The trade-off is that it rules out treating the slab for moisture, and you inherit whatever is underneath. One safety point: in houses built before the 1980s, cut-back adhesive and 9-inch vinyl tile may contain asbestos, so leaving them undisturbed is sometimes the better call — and if they must come up, they get tested first.

Flooring can be levelled; a moving slab cannot. The expansive clay under this region swells and shrinks seasonally, so a slab can be measurably out of level and still be behaving normally — or it can be telling you about a drainage or foundation problem that new flooring will not fix. We measure deviation over 10-foot spans and compare it to what your material actually allows, commonly around 3/16 inch in 10 feet for planks and 1/8 inch in 10 feet for large-format tile. Modest deviations get ground and filled. Large ones, or cracks with vertical displacement between the two sides, mean a structural engineer looks at it first. Static hairline cracks are normally handled with an uncoupling or crack-isolation membrane under tile.

Two reasons, and one of them isn’t negotiable. The first is height: mortar-set tile plus its membrane usually finishes noticeably higher than an 8 mm plank, so something has to bridge that step in the doorway. The second is movement. Floating floors expand and contract as one sheet, need a gap at every wall and vertical, and most manufacturers cap how long a single uninterrupted run can be before a T-moulding is required — often somewhere around 30 to 40 feet, which a long hallway will exceed. You can reduce transitions by carrying one material across more of the house, or by planning the layout so any necessary break lands under a door that closes rather than in open floor.

As a planning guide: about a day of demolition and haul-out per large area, one to two days of subfloor prep, then roughly 300 to 500 square feet of plank installed per day — more across open runs, less in small cut-heavy rooms. Tile runs slower because mortar and grout need cure time before anyone walks on it. Self-levelling underlayment and moisture-mitigation coatings each add drying days that cannot be compressed by adding people. Most clients stay put and we phase the work room by room, keeping a clear path to a bathroom and a bedroom. That is slower than working in an empty house, so tell us up front which you want and we’ll schedule it that way.

Replacing a floor finish like-for-like usually doesn’t need a building permit, but the rules you’re under follow the address, not the mailing city — some areas are unincorporated, and some subdivisions answer to an HOA architectural committee under Texas Property Code Ch. 209 rather than to a permit office. In a stacked or attached unit, the governing documents often set a sound-transmission requirement that dictates the underlayment. Flood history matters more. If flooring is part of a larger repair on a home in a mapped floodplain, its cost counts toward the 50% substantial-improvement threshold (Harris County Sec. 2.45 and the equivalent municipal floodplain ordinance), which can push the whole structure into floodplain compliance. Only the floodplain office can give you a binding answer on that, and it’s worth the phone call before you sign anything.