Building Performance Diagnostics · Central London · WC1, WC2

Building Performance Diagnostics in Holborn

Holborn sits between the City and the West End — a mix of Georgian and Victorian buildings, mansion blocks and offices converted to residential use. Our work is consultancy-led: overheating, ventilation, condensation and heritage-aware retrofit assessment.

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 Holborn.

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 · Holborn

The buildings of Holborn, and how they perform.

Holborn's residential stock blends period mansion blocks and townhouses with newer office-to-residential conversions. Period buildings face solid-wall heat loss and condensation, while conversions and apartments tend toward overheating and ventilation faults.

Typical properties in Holborn
  • Period mansion blocks
  • Georgian & Victorian buildings
  • Office-to-residential conversions
  • Mixed-use residential / commercial buildings
  • Serviced and rented apartments

Thermal Imaging Surveys in Holborn

In Holborn, thermal imaging checks period solid walls and the thermal-bridge details of office conversions.

  • 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 Holborn

We measure to separate condensation and ventilation faults from genuine damp in Holborn's flats.

  • 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 Holborn

Solid walls and single glazing lead loss in the period stock; overheating dominates the conversions.

  • 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 Holborn

We focus on ventilation provision and airflow alongside targeted draught-proofing.

  • 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 specify and oversee ventilation, solar-control and heritage-aware insulation, 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
What we see locally

Common building performance problems in Holborn.

Apartments overheating in summer, particularly conversions
Poor ventilation and indoor air quality in sealed flats
Condensation on cold reveals and single-glazed windows
Solid-wall heat loss in period mansion blocks
Noise transfer in mixed-use and converted buildings
Heritage constraints on fabric improvements
Condensation at cold junctions in office conversions
Why choose RetrofitIQ

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

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 Holborn

Book a Building Performance Survey in Holborn.

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.