Acoustic underlay for Bromley flat conversions
Complaints from the flat below almost always trace to two things: no acoustic underlay, or an underlay bridging the wall via the skirting. Around Bickley we've retrofitted hundreds of flats where the original fit passed sound testing then failed a year later because the perimeter wasn't isolated. We fix both — underlay spec and perimeter isolation strip.
What acoustic underlay for flat conversions in Bromley actually involves
Complaints from the flat below almost always trace to two things: no acoustic underlay, or an underlay bridging the wall via the skirting. Around Bickley we've retrofitted hundreds of flats where the original fit passed sound testing then failed a year later because the perimeter wasn't isolated. We fix both — underlay spec and perimeter isolation strip.
Bickley homes often have deep voids under timber boards — extra noggins before LVT.
Before we quote a lvt job in Bromley
- Bromley subfloor reality
Bickley homes often have deep voids under timber boards — extra noggins before LVT.
- Pattern direction
Plank run follows the longest sightline; in narrow Bromley hallways that means front-door to kitchen.
- Door undercut
We trim doors on the day so they swing cleanly over glue-down LVT — no scraping, no callbacks.
- Rubber-crumb and cork-composite underlays rated ΔLw 18–21dB
- Meets typical London leasehold requirement (≥17dB impact reduction)
- Signed spec sheet supplied for managing agent / freeholder approval
- Perimeter isolation strip fitted so plank noise doesn't bridge the wall
Recap — 18–21dB rated acoustic underlays fitted across BR1/BR2 flat conversions, with perimeter isolation and paperwork.
“Punctuality, Quality, Value — recommended.” — Falgun, verified Google review
Postcodes: BR1/BR2 · Routes: the A21 and A222 · Common build: Bickley detached homes.
Covering Bickley, Shortlands, Plaistow.
Relevant finishes for acoustic underlay for flat conversions
Acoustic Underlay for Flat Conversions in Bromley — common questions
We provide the underlay's independent test certificate (BS EN ISO 717-2) plus a photo record of the perimeter strip and floor build-up. That's enough for 95% of Bromley managing agents; full on-site sound testing is a separate acoustic-consultant job.
A 5–10mm foam strip around the wall edge stops the plank layer touching the wall or skirting. Without it, footfall bridges into the party wall and the downstairs flat still hears it — even with a great underlay. We fit it as standard.
Only by lifting the LVT first. If the LVT is glue-down we usually replace it; if it's click-lock we can lift, add underlay and refit — subject to a condition check on site.
Usually yes on Bromley leasehold flats. We supply the underlay spec sheet and product data ahead of the fit so you can get written approval — most agents turn it round in a week.