Building Performance Diagnostics in Highgate
Highgate is one of London's most heritage-sensitive neighbourhoods — large Georgian, Victorian and Edwardian homes, conservation areas and Listed buildings. With substantial heat-loss budgets and strict constraints, owners here need careful, building-physics-led retrofit advice.
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 Highgate.
- 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 Highgate, and how they perform.
Highgate's houses are typically large solid-wall period properties with original joinery, generous rooms and significant external wall and roof areas, giving a high absolute heat demand. Conservation and Listed status usually rules out external insulation, making modelled internal insulation, secondary glazing and airtightness the realistic levers.
- Large Georgian & Victorian period houses
- Edwardian detached & semi-detached homes
- Listed and conservation-area properties
- Period houses converted into apartments
- Mews and coach-house conversions
Thermal Imaging Surveys in Highgate
In Highgate, thermal imaging surveys large period homes to prioritise where insulation and airtightness work is both safe and worthwhile.
- 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 Highgate
Measured surface-temperature and humidity data give Highgate's heritage homes an accurate condensation-versus-damp diagnosis.
- 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 Highgate
Solid walls, sash windows, bays and large roofs lead the substantial heat-loss budgets typical of Highgate.
- 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 Highgate
Blower door testing locates the draughts in large period homes that extra heating never fully overcomes.
- 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 plan and deliver sequenced, condensation-safe heritage retrofit — airtightness, modelled insulation and ventilation — and verify the comfort gain.
- 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 Highgate.
A technical, building-physics-led specialist in Highgate.
Book a Building Performance Survey in Highgate.
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.