Outcomes for developers & juristic persons

• Complaint rate ↓, buyer satisfaction ↑
• Predictable handover—clear targets & verification
• Retrofit options where construction is complete

Typical issues we fix

• Party-wall noise (voices/TV), door/soffit leakage, flanking
• Footfall/impact from upper units; stairwell and lift noise
• Façade/traffic noise; balcony and window leakage
• Mechanical noise (FCUs, compressors, pumps)

Design & verification targets (typical ranges)

Parameter	Target (typ.)	Notes
Background noise	Bedrooms ≤ 30–35 dB(A)	Night; HVAC included
Airborne isolation (inter-unit)	DnT,w 50–55 (≈ STC/Rw 50–55)	Detailing & flanking critical
Impact noise (vertical)	L’nT,w ≤ 58	Floor build-ups & resilient layers
Façade sound insulation	D2m,nT,w 35–40	Site exposure dependent
Reverberation (living spaces)	RT60 ≈ 0.4–0.6 s	Comfort & speech clarity

Scope of work

1. Diagnosis: complaint logs, sample tests, leakage mapping
2. Modelling & options: partitions, floors, façades
3. Detail design: drawings, junctions, BoQ
4. Implementation support: RFIs, site QA
5. Verification: ISO 16283, ISO 3382-2, report pack

FAQs

Can we retrofit with minimal disruption?

Yes—targeted door/partition upgrades, resilient underlays, and balcony/façade sealing are staged by stack or floor.

What data do you need?

Plans/sections, wall/floor build-ups, MEP schedules, complaint logs, unit matrix.