Building Performance Diagnostics · Kent · TN13, TN14

Building Performance Diagnostics in Sevenoaks

Sevenoaks is an affluent Kent town of period homes, large detached houses and conservation properties set in the green belt. With substantial heat-loss budgets and heritage considerations, owners here want careful, building-physics-led retrofit advice.

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 Sevenoaks.

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 · Sevenoaks

The buildings of Sevenoaks, and how they perform.

Sevenoaks combines solid-wall period and timber-framed homes with larger early-cavity detached houses. Conservation status and the scale of these properties mean a sequenced, condensation-safe approach to insulation, glazing and airtightness is essential.

Typical properties in Sevenoaks
  • Period and timber-framed homes
  • Large detached green-belt houses
  • Conservation-area properties
  • Early-cavity inter-war detached homes
  • Extended and converted family homes

Thermal Imaging Surveys in Sevenoaks

In Sevenoaks, thermal imaging surveys large period and detached homes to prioritise insulation and airtightness work.

  • 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 Sevenoaks

We give Sevenoaks homes an accurate condensation-versus-damp diagnosis from measured data.

  • 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 Sevenoaks

Solid walls, glazing and large roofs lead the substantial heat-loss budgets typical of Sevenoaks.

  • 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 Sevenoaks

Blower door testing locates the draughts in large homes that extra heating never 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 retrofit 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
What we see locally

Common building performance problems in Sevenoaks.

High heating demand across large period and detached homes
Cold solid and timber-framed walls prone to condensation
Condensation on original windows and cold reveals
Heritage constraints limiting external insulation
Thermal bridging at extensions, bays and loft conversions
Damp at solid-wall ground level misread as rising damp
Cold, draughty large rooms despite ample heating
Why choose RetrofitIQ

A technical, building-physics-led specialist in Sevenoaks.

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 Sevenoaks

Book a Building Performance Survey in Sevenoaks.

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.