Building Performance Diagnostics in Finchley
Finchley is classic North London suburbia — leafy 1930s semis and detached houses, larger family homes and pockets near Hampstead Garden Suburb. Here the conversation is increasingly fabric-first upgrades and heat pump readiness, underpinned by measured assessment.
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 Finchley.
- 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 Finchley, and how they perform.
The typical Finchley home is an inter-war cavity-walled semi or detached house with a pitched, loft-insulated roof. Early cavities may be unfilled, partially filled or have slumped insulation, and large bay windows introduce thermal bridges — all of which determine how well a low-temperature heating system would perform.
- 1930s cavity-wall semis & detached houses
- Larger inter-war family homes
- Hampstead Garden Suburb-edge properties
- Post-war and modern infill housing
- Extended and loft-converted houses
Thermal Imaging Surveys in Finchley
In Finchley, thermal imaging confirms cavity-wall and loft insulation condition and finds the cold spots that would undermine a heat pump.
- 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 Finchley
We confirm whether Finchley damp is condensation in an extension, a bridged cavity or a localised defect.
- 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 Finchley
Cavity condition, loft insulation, glazing and floor losses lead the heat-loss picture and determine heat pump readiness.
- 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 Finchley
Blower door testing quantifies the background leakage that matters for both comfort and low-temperature heating.
- 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 deliver a sequenced fabric-first upgrade — insulation, airtightness and ventilation — to get a Finchley home heat-pump-ready, then verify it.
- 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 Finchley.
A technical, building-physics-led specialist in Finchley.
Book a Building Performance Survey in Finchley.
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.