Professional Sound Insulation 
& Air Tightness Testing

Specialist acoustic and air permeability testing ensuring your developments comply with Approved Document Part E and Part L of the Building Regulations. Fast, reliable pre-completion testing services across the UK.

500+

Projects
Completed

24 hr

Report
Turnaround

10+

Years
Experience

Unrivalled Expertise.
Exceptional Service.

Hart Sound & Air Testing Ltd is a specialist testing company providing comprehensive sound insulation and air permeability testing services. Our team of fully qualified and experienced engineers is dedicated to delivering accurate assessments tailored to your project's requirements.

We work with developers, builders, architects, and housing associations to ensure full compliance with the Building Regulations. Whether you require sound testing for a single conversion or air testing across a 200-unit development, we have the expertise and equipment to deliver.

  • SITMA-accredited testing
  • Nationwide UK coverage
  • Quick turnaround time
  • Fully calibrated equipment
  • Competitive & fixed rates
  • Helpful, qualified engineers
Housing Associations

Compliant, pre-completion testing to support your developments. Fast turnarounds, every time.

Construction Companies

Reliable Part E and Part L testing that keeps your build on schedule. UK-wide coverage.

Architects & Designers

Accurate testing to validate your designs against Building Regulations. Trusted results, fast.

Property Developers

Efficient testing across single units or full developments. Fast, reliable, UK-wide.

Local Authorities

Independent, compliant testing you can rely on for public and residential projects. Fast results.

Commercial Clients

Thorough sound and air testing tailored to commercial builds. Quick, dependable service.

Sound Insulation Testing

Pre-completion testing to Approved Document Part E of the Building Regulations. Sound insulation testing assesses the performance of party elements — separating walls and floors — between residential dwellings.

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Air Tightness Testing

Air permeability testing to Approved Document Part L of the Building Regulations. We measure the air leakage rate of your building envelope using calibrated blower door equipment to assess how well the building retains conditioned air.

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Pre-Build Consultancy

Expert advice during design and construction phases to help you achieve compliance first time, avoiding costly remedial works and project delays. We assess your construction details and provide tailored recommendations.

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Client Success Stories

Don't just take our word for it — hear from some of the developers, contractors, and architects we've worked with.

"Excellent service from start to finish. The team was professional, punctual, and the reports were delivered the same day. They explained all the results clearly and even advised on some minor improvements. Highly recommended for any developer needing fast, reliable testing."

James Richardson
Property Developer

"We've used Hart Sound & Air Testing on multiple projects and they always deliver. Competitive prices, speedy reports, and genuine expertise. The engineers were thorough in running all tests and very happy to assess any direction of noise we wanted. Our go-to testing company."

Sarah Mitchell
Construction Manager

"Very knowledgeable team who provided great pre-build advice that saved us significant time and money. The testing was thorough and all units passed first time. It's the one thing I didn't want to get wrong with the project and feel really confident in the results."

David Clarke
Architect

Get your Free Quote

Ready to book your testing or need advice on compliance? Get in touch today and we'll get back to you promptly with a competitive, fixed-price quote.

info@hartsoundairtesting.co.uk