Granville Noise Insulators Limited

Granville Noise Insulators is a family-run glazing company that has traded for over 40 years. It supplies and installs uPVC and aluminium windows, doors, bi-fold and composite doors. Its double-glazed windows are made to measure, and the company also offers secondary glazing for properties where existing windows cannot be replaced, including listed buildings and conservation areas.

The company works with residential and commercial customers, public buildings and local authorities across London, Hertfordshire, Kent and Essex. It provides advice, design and surveys, and says its team agrees a price and timeline with customers. The company also offers garage conversions, from planning through to final touches, and sound-attenuated ventilation units.

Granville says it is FENSA registered, SafeContractor approved and accredited under the Safety Schemes in Procurement. Window installations have a 10-year insurance-backed guarantee, and the company says it provides after-sales support. It identifies London City Airport and London Luton Airport as clients for residential and public-building sound-insulation work.