Building Performance Diagnostics in Croydon
Croydon spans Victorian terraces, post-war tower blocks, suburban semis and a wave of new-build regeneration in the town centre. This broad mix means very different performance issues across the borough, all of which we diagnose and can remediate.
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 Croydon.
- 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
The buildings of Croydon, and how they perform.
Croydon's older terraces are solid-wall; its post-war flats are concrete-framed with thermal bridges; its suburban semis are cavity-walled; and its new towers are tight, mechanically-ventilated and prone to overheating. Each construction type calls for a different, evidence-led approach.
- Victorian solid-wall terraces
- Post-war council & concrete-framed flats
- 1930s cavity-wall suburban semis
- New-build town-centre apartments
- Converted and let properties
Thermal Imaging Surveys in Croydon
In Croydon, thermal imaging adapts to each stock — solid-wall loss, concrete bridges, cavity checks and new-build details.
- 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 Croydon
We measure to separate condensation from genuine damp across Croydon's varied housing.
- 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 Croydon
Solid walls, concrete bridges, cavity condition and glazing all feature depending on the property type.
- 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 Croydon
Blower door testing quantifies draughts in older homes; new flats need ventilation commissioning.
- 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 insulate, air-seal, improve ventilation or re-commission systems, then verify the outcome.
- 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
Common building performance problems in Croydon.
A technical, building-physics-led specialist in Croydon.
Book a Building Performance Survey in Croydon.
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.