How quickly can you test in Worcestershire?

We are based in Worcester, so Worcestershire is our home county. Same-day response is often possible. Call 01386 365145 to check current availability.

Part E · As Built Testing

Sound Insulation Testing
in Worcestershire

Your local accredited sound testing provider, based in Worcester. Airborne and impact testing across Worcester, Malvern, Droitwich, Evesham, Bromsgrove and Redditch.

Book a Sound Test How the test works

24 hr

report turnaround
after test

Combined

with air tightness
on same visit

Book a Test

Same-week slots available across Worcestershire

First name

Last name

Email address

Phone number

Development type

Number of units

Upload drawings (PDF)

✓

Thanks — we'll confirm availability and pricing within one working day.

Sound insulation testing in Worcestershire

Your local accredited sound testing provider, based in Worcester.

Sound insulation testing equipment in Worcestershire

Worcestershire is our home county. Based in Worcester city centre, we have the fastest response times and deepest local relationships with building control teams anywhere in our service area. For sound insulation testing, that local knowledge matters — we understand the construction types, the common conversion projects, and the acoustic challenges specific to the region.

Sound insulation testing measures how effectively separating walls and floors prevent sound from passing between adjoining dwellings. Airborne tests measure speech and music transmission (DnT,w + Ctr in dB); impact tests measure footstep noise through floors (L'nT,w in dB).

Part E of the Building Regulations requires all new build attached dwellings, apartments, and material change-of-use conversions to demonstrate acceptable sound insulation performance before building control sign-off.

Beyond compliance, good sound insulation is one of the strongest predictors of resident satisfaction. Flanking transmission, poor junction detailing, and incomplete acoustic barriers are the most common causes of failure — all preventable with design-stage decisions and on-site quality control.

Part E minimum standards

≥ 45 dB

DnT,w + Ctr — airborne sound insulation, new build walls & floors

Impact floors must achieve ≤ 62 dB L'nT,w. Conversions benefit from a relaxed standard of ≥ 43 dB for airborne sound insulation.

Construction type determines test scope. The number and type of separating elements in your development dictates how many individual tests are required.

The test process

What happens on the day of your sound test.

A typical sound test takes between two and four hours on site, depending on the number of separating elements.

Site readiness check

We confirm the property meets minimum preparation requirements — all finishes complete, no floor coverings on separating floors, no background noise from construction.

Airborne wall tests

Loudspeaker generates a defined sound level in the source room. Precision microphone measures the received level in the adjoining room. Conducted on all separating party walls.

Floor tests (airborne & impact)

Airborne floor test measures sound passing through the separating floor. Impact test uses a calibrated tapping machine on the floor above and measures the resulting noise below.

Report & certificate

Full test report with DnT,w + Ctr and L'nT,w results issued within 24 hours. Pass certificates for Building Control. Failure reports include guidance on likely causes.

Preparation

Getting your build ready — and avoiding a re-test.

Sound insulation tests are highly sensitive to on-site conditions. Background noise from construction activity, incomplete finishes, and floor coverings on separating floors can all invalidate a test or produce a misleading result. Proper preparation is the single most effective way to avoid a failed test and the cost of a return visit.

The floor coverings rule is particularly important: carpet, laminate, or vinyl on a separating floor will affect the impact test result. All floor coverings must be removed from separating floors before testing. We flag this at the point of booking, but it remains one of the most common reasons for a wasted site visit.

We recommend using the pre-booking checklist below to confirm your site is ready. For larger developments or projects with unusual construction details, we can arrange a pre-test consultation to review the acoustic design and identify any risks before the formal test date.

Pre-test checklist

All windows & doors fitted and closedExternal openings must be fully operational and properly weather-sealed.

All walls, floors & ceilings finishedPlaster, plasterboard, and all acoustic layers must be complete on separating elements.

No floor coverings on separating floorsCarpet, laminate, vinyl — all must be removed from separating floors before impact testing.

Skirting & electrical fittedAll junction details, skirting boards, and electrical back-boxes must be installed and sealed.

No construction activity on siteBackground noise invalidates sound test readings. All trades must stop during the test.

Access to both sides of separating elementsWe need access to both dwellings either side of the separating wall or floor being tested.

240v power availableOur loudspeaker and tapping machine require mains power in both the source and receiving rooms.

Towns we cover in Worcestershire

Sound insulation testing across Worcestershire.

Based in Worcester with the fastest response times in our home county.

Worcester

Sound insulation testing for city centre apartments, conversions, and attached dwellings.

Malvern

Covering Great Malvern, Malvern Hills district.

Droitwich

Testing across Droitwich Spa and surrounding villages.

Evesham

Sound testing for developments in the Vale of Evesham.

Bromsgrove & Redditch

North Worcestershire border areas.

Kidderminster & Bewdley

Wyre Forest district.

Wider England & Wales

Our test certificates are valid nationally. Contact us wherever your site is.

We also cover: Birmingham, Gloucestershire, Bristol & Somerset, Warwickshire

FAQ

Common questions about sound insulation testing in Worcestershire.

It depends on the dwelling type. Separating walls between houses or apartments require airborne testing only. Separating floors between apartments require both airborne and impact testing. Houses with no separating floors only need airborne wall tests.

We provide a full report with the test result, the shortfall, and guidance on likely causes. Common causes of failure include flanking transmission, unsealed penetrations, incomplete plaster skimming, and missing acoustic membranes.

We provide remediation advice and arrange a re-test once the issues have been addressed.

Yes, and we actively encourage it. Both tests are typically required at the same completion stage, and conducting them on the same visit reduces disruption and cost for your site team.

We're based in Worcester — same-day response is often possible. Worcestershire is our home county, so we have the fastest response times in our entire service area. Call 01386 365145 to check current availability.

Yes. We test all dwelling types that fall under Part E of the Building Regulations, including conversions and Houses in Multiple Occupation. Conversions benefit from a relaxed standard of 43 dB compared to 45 dB for new builds.

A typical semi-detached house with separating wall tests takes around 2 hours on site. A full apartment block with airborne and impact testing on multiple separating elements can take a full day.

Yes. Part E allows a minimum of 43 dB DnT,w + Ctr for conversions compared to 45 dB for new builds. The same testing methodology is used, but older buildings present additional flanking risks due to their construction type.

Sound Insulation Testingin Worcestershire