Building Performance Diagnostics · East London · E2

Building Performance Diagnostics in Bethnal Green

Bethnal Green holds some of London's oldest housing — Georgian and early-Victorian terraces, the historic Boundary Estate and dense later conversions. Heritage constraints are the rule here, so condensation-safe, building-physics-led retrofit advice matters more than ever.

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 Bethnal Green.

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 · Bethnal Green

The buildings of Bethnal Green, and how they perform.

Much of the stock is solid brick, often in conservation areas or Listed, where external insulation is not permitted and internal insulation must be modelled carefully to avoid interstitial condensation. The Boundary Estate (1900) brings load-bearing brick mansion blocks with their own ventilation and moisture characteristics.

Typical properties in Bethnal Green
  • Georgian & early-Victorian solid-brick terraces
  • Boundary Estate mansion blocks (early municipal housing)
  • Listed and conservation-area properties
  • Terraces converted into flats
  • Warehouse and workshop conversions

Thermal Imaging Surveys in Bethnal Green

In Bethnal Green, thermal imaging guides where (and whether) internal insulation is safe on heritage solid walls.

  • 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 Bethnal Green

With so much misdiagnosed damp in old E2 stock, we rely on measured surface temperature, humidity and dew-point margins to find the true cause.

  • 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 Bethnal Green

Solid walls, single glazing and uninsulated top-floor ceilings dominate heat loss across Bethnal Green's period buildings.

  • 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 Bethnal Green

Blower door testing and smoke tracing locate the chimney, floor and sash-box leakage typical of E2 terraces.

  • 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

Where heritage allows, we specify vapour-open, hygrothermally-modelled internal insulation and can carry out the works with verification.

  • 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 Bethnal Green.

Mould in the corners of period flats with cold solid walls and no extract
Heritage-fabric constraints making conventional insulation high-risk
Damp at low level on solid walls misread as rising damp
Condensation on single-glazed and secondary-glazed windows
Cold mansion-block bedrooms with chronic winter condensation
Draughts through original floorboards, sash boxes and chimney flues
Poor cross-ventilation in single-aspect conversion flats
Why choose RetrofitIQ

A technical, building-physics-led specialist in Bethnal Green.

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 Bethnal Green

Book a Building Performance Survey in Bethnal Green.

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.