Build Envelope delivers expert Building Compliance, Design, and On-Site Testing for residential and commercial projects across Worcestershire, Gloucestershire, Oxfordshire, Warwickshire, Birmingham, Bristol, and the West Midlands. Our in-house specialists provide the following building compliance services: SAP Calculations, Air Tightness Testing, Sound Insulation Testing, Ventilation Flow Rate Testing, U-value Calculations, Overheating Assessments and more. Choose tailored or value-engineered compliance packages. Fast, cost-effective and clear guidance ensure your project meets building regulations.