subfloor prep

Our 1950s bungalow has original subfloor planks — is that stable enough for tile?

Can OSB subfloor cause problems with certain types of flooring?

Our condo board says we need STC-rated underlayment before installing new floors — what does that actually mean and how much more does it usually cost?

Is self-leveling compound necessary for every flooring installation?

Our floor slopes toward one corner — is that normal settling or serious?

How thick should the plywood subfloor be for hardwood installation?

There's old adhesive residue stuck to the concrete — how is that removed properly?

The floors aren't level between rooms — can that be corrected before new install?

Our basement slab has hairline cracks — is that a problem for vinyl or laminate?

Should sagging floor joists be corrected before any new flooring goes down?

Our main floor slopes slightly — does that need structural correction before installing new hardwood?

Can I install flooring over old asbestos tile safely?

The basement smells dusty after removing carpet — how should the slab be prepped before new flooring?

Our hardwood feels slightly bouncy — does that mean subfloor issues?

Our condo board requires specific underlayment thickness — how do we verify compliance before install?