Flooring is a finish layer, so it inherits every problem beneath it. Squeaks, loose panels, old adhesive, soft spots, and height changes can remain visible or audible after expensive material is installed.
Why This Decision Belongs in Preconstruction
Brewerytown and West Philadelphia houses may have hardwood over plank subfloor, plywood patches, tile underlayment, old vinyl, and several generations of fasteners.
What Local Properties Change
After selective demolition, evaluate whether the base is structurally sound, sufficiently flat for the selected finish, dry, and properly fastened. If the subfloor moves because framing below is deflecting, that structural cause should be addressed.
What to Verify Before Work Starts
Measure finished heights at doors, stairs, kitchens, bathrooms, and connecting rooms. Underlayment, membranes, tile, hardwood, or floating floors can change appliance, trim, and threshold clearances.
How the Finished Work Should Perform
Once the base is ready, choose the finish for wear, maintenance, moisture exposure, sound, and visual continuity rather than using the new floor to hide old defects.
Frequently Asked Questions
Can LVP be installed over an uneven subfloor?
Floating floors still require a sufficiently flat and stable base; product tolerances vary.
Do squeaks mean the subfloor must be replaced?
Not always. Loose fastening or movement between layers can sometimes be corrected without full replacement.
Should old flooring be removed before final measurements?
Selective demolition can reveal hidden layers and give more accurate height information before installation decisions.
Plan the Next Step
PHS can coordinate demolition, subfloor repair, transitions, trim, and flooring installation so the finished surface starts with a stable base.
Helpful source: U.S. Department of Energy – Home Upgrades


