Building Performance Diagnostics · West London · TW8

Building Performance Diagnostics in Brentford

Brentford has been transformed by riverside and canal-side regeneration — airtight new-build apartments alongside pockets of older Victorian terraces. The new stock raises modern questions of overheating, ventilation and acoustics, while the older homes face the familiar solid-wall issues.

One company, the whole process

Investigation only, remedial works, or a complete retrofit — your choice.

RetrofitIQ is not only a diagnostics company. We take projects from first investigation through to verified improvement — and you decide how far we go. Engage us for an investigation on its own, for an investigation plus targeted remedial works, or for a complete building-performance and retrofit project in Brentford.

Investigate
Diagnose
Design
Remediate
Verify
Remediation & retrofit works we can carry out
  • Airtightness improvements & draught-proofing
  • Internal wall insulation (IWI)
  • External wall insulation (EWI)
  • Loft & roof insulation
  • Suspended floor & underfloor insulation
  • Thermal-bridge detailing & correction
  • Extract ventilation & MVHR installation
  • Soundproofing & acoustic upgrades
  • General building-fabric improvements
Local building stock · Brentford

The buildings of Brentford, and how they perform.

New Brentford developments are tight, mechanically-ventilated apartments with large glazed elevations facing the Thames and Grand Union Canal, prone to summer overheating and ventilation-commissioning faults. The remaining Victorian terraces are solid-wall with the usual heat-loss and condensation characteristics.

Typical properties in Brentford
  • New-build riverside & canal-side apartments
  • Mechanically-ventilated (MVHR) flats
  • Victorian solid-wall terraces
  • Mixed-use residential developments
  • Converted flats and live-work units

Thermal Imaging Surveys in Brentford

In Brentford, thermal imaging checks slab-edge and frame thermal bridges in new flats and solid-wall loss in the older terraces.

  • Mapping heat loss through walls, roofs and floors
  • Locating missing, slumped or incomplete insulation
  • Identifying thermal bridging and cold spots
  • Highlighting surfaces at risk of condensation
  • Revealing hidden defects behind finishes

Damp, Condensation & Mould Investigations in Brentford

Condensation in Brentford's new flats is usually localised to cold bridges or under-ventilated rooms; we measure to pinpoint it.

  • Separating condensation from penetrating and rising damp
  • Finding mould behind wardrobes, furniture and in cold corners
  • Measuring relative humidity, surface temperature and dew point
  • Assessing ventilation provision and moisture sources
  • Combining thermal imaging with a building-physics review

Heat Loss & Energy Efficiency Surveys in Brentford

For new-builds the priority is solar control and ventilation heat recovery; for terraces it is solid-wall loss.

  • Pinpointing where heat escapes — walls, floors, roofs, windows and doors
  • Setting fabric-first retrofit priorities in the right order
  • Quantifying the impact of each potential improvement
  • Assessing heat pump readiness where relevant
  • Producing a clear, costed improvement plan

Blower Door Testing & Airtightness in Brentford

New flats are already tight — our focus is ventilation commissioning and airflow measurement; older homes need leakage testing.

  • Measuring air leakage and uncontrolled heat loss (ACH₅₀)
  • Locating draughts with smoke tracing
  • Identifying leakage paths through floors, lofts and services
  • Guiding targeted airtightness improvements
  • Verifying performance before and after retrofit works

Retrofit & Building Physics Advice

We can re-commission ventilation, add solar control and acoustic measures, or insulate older terraces — then verify.

  • A fabric-first, Passive House-informed approach
  • Retrofit advice aligned with PAS 2035 principles
  • Internal and external wall insulation risk assessment
  • Thermal-bridge reduction and condensation-risk modelling
  • A coherent ventilation strategy to protect health and fabric
What we see locally

Common building performance problems in Brentford.

New-build apartments overheating behind large glazed elevations
MVHR systems never commissioned, balanced or maintained
Stuffy, high-CO₂ bedrooms despite a mechanical system
Condensation at cold slab-edge and frame thermal bridges
Noise transfer between apartments and from plant
Cold, solid-wall older terraces with high heating bills
Poor filtration and indoor air quality near busy roads
Why choose RetrofitIQ

A technical, building-physics-led specialist in Brentford.

Certified Passive House Designer
Building-physics-led diagnostics
FLIR thermal imaging
Calibrated moisture readings
Blower door / airtightness testing
Clear, costed reports and recommendations
End-to-end: investigation through to verified works
Fully insured, London-based specialists
Get started in Brentford

Book a Building Performance Survey in Brentford.

Request a thermal imaging, damp, condensation or heat loss investigation — or speak to us about a full retrofit. We diagnose by measurement and, where you want it, carry out and verify the works.