Retrofit and PAS2035 Air Tightness Testing

Retrofit Air Tightness Testing (PAS 2035 Compliant)

Supporting High-Quality Retrofit Projects Across Devon

Air tightness testing plays a critical role in achieving high-performance, energy-efficient homes under the PAS 2035 retrofit standard. At Air Tests Devon, we offer air leakage testing services tailored to retrofit projects, helping to identify uncontrolled ventilation pathways that contribute to heat loss, draughts, damp, and poor occupant comfort.

PAS 2035 places a strong emphasis on quality, performance, and whole-house energy efficiency. Air tightness testing is an essential part of meeting those expectations.

Why Retrofit Testing Matters

• Meets PAS 2035 Requirements for whole-dwelling performance assessments and post-installation verification.

• Supports Designers and Coordinators with accurate data for improvement planning.

• Improves Building Performance by identifying areas for sealing and insulation enhancement.

• Protects Health and Comfort by supporting appropriate ventilation strategies, especially in dwellings affected by damp or mould.

Whether you're retrofitting a single home or an entire housing portfolio, our engineers provide testing that integrates seamlessly into the PAS 2035 retrofit workflow.

Working with Retrofit Coordinators & Installers

We understand the demands of PAS 2035 projects and work closely with:

• Retrofit Coordinators

• Retrofit Assessors & Designers

• Installers and contractors

We can provide testing at multiple stages — including pre-works diagnostic testing and post-works verification — to ensure the air tightness improvements you've designed and installed are working as intended.

Air Test Devon provided excellent service with professional testing and results at a fair price. Highly recommend!

John Doe

★★★★★