RetrofitIQ — Building Performance Diagnostics & Remediation in London

RetrofitIQ (operated by G.A.S General Building Services Ltd) is a London-based Building Performance Diagnostics & Remediation company led by Certified Passive House Designer George Sora.

We follow a single coordinated process — Investigate → Diagnose → Design → Remediate → Verify — covering thermal imaging surveys, blower door / airtightness testing, smoke tracing, condensation and moisture investigations, indoor air quality assessments, internal & external wall insulation retrofit, soundproofing and Passive House design across Greater London, Essex, Kent, Surrey and Hertfordshire.

One Company. One Process. One Point of Responsibility.

Contact: info@retrofitiq.co.uk · 0753 824 3578.

Services

Service areas

London
Central London
East London
North London
South London
West London
Essex · Kent · Surrey · Hertfordshire

Knowledge Centre

View real Retrofit IQ Investigations · Projects map · Verified Checkatrade and MyBuilder reviews · Book a survey

0753 824 3578 info@retrofitiq.co.uk

London · Essex · Kent · Surrey · Hertfordshire · Certified Passive House Designer · Fully Insured

Building Performance

CertifiedPassive House Designer

0753 824 3578 Book a Survey

Certified standard

Passive House & EnerPHit Investigations

Real Retrofit IQ investigations applying Passive House and EnerPHit discipline — modelling in PHPP, designing out thermal bridges, building a continuous air barrier and verifying the result with a blower door test and thermal imaging.

Investigations coming soon

We’re documenting passive house / enerphit investigations now.

We only publish genuine completed investigations with the customer’s consent. In the meantime, read the building science in our Passive House guide, or get in touch to discuss your own project.

Read the Passive House guide Get in touch

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