Building Performance Diagnostics in Borehamwood
Borehamwood is a Hertfordshire commuter town of inter-war and post-war semis, council-built estates and modern developments. We diagnose cavity-wall condition, heat loss and condensation by measurement, and can carry out the remedial works.
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 Borehamwood.
- 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 Borehamwood, and how they perform.
Most Borehamwood homes are cavity-walled houses from the 1930s onward, alongside post-war council and ex-council estates. Cavity and loft insulation condition varies, and a rented sector adds occupancy-driven condensation and ventilation pressures.
- 1930s cavity-wall semis & terraces
- Post-war council & ex-council estates
- Modern estate houses & flats
- Extended and loft-converted homes
- Let properties and HMOs
Thermal Imaging Surveys in Borehamwood
In Borehamwood, thermal imaging checks cavity and loft insulation and finds cold spots and bridges.
- 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 Borehamwood
We measure to separate condensation from genuine damp across Borehamwood's suburban stock.
- 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 Borehamwood
Cavity condition, loft insulation and glazing lead heat loss across Borehamwood's housing.
- 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 Borehamwood
Blower door testing quantifies draughts in older semis and helps prioritise sealing.
- 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 advise on cavity remediation, top up loft insulation, improve ventilation and verify the improvement.
- 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 Borehamwood.
A technical, building-physics-led specialist in Borehamwood.
Book a Building Performance Survey in Borehamwood.
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.