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BMI guarantee options

When you design, construct or commission a roof, you expect it to last. At BMI, we invest heavily into making sure every roofing product, system and solution is as enduring as possible, from quality-controlled production and sourcing of best materials to extensive testing. This focus on quality is extended with our three guarantee options. We never promise anything we cannot deliver, offering real value and ongoing peace of mind for our customers.
BMI solution guarantee

Encompassing everything from the durability of the roofing system to the quality of installation and ongoing maintenance, this is our most comprehensive guarantee option. Designed to protect both the property owner and the roofing contractor, this package offers complete assurance in the reliability of your BMI roofing solution and is the ideal choice to safeguard your home or business. We have the confidence to offer this comprehensive package thanks to our BMI roofing installer training through our local roofing partnership programmes, ensuring roofers can install our products following our detailed installation guidelines to meet our high standards.


Our edge-to-edge guarantee of durability to resist against water ingress of the product system, covering the products, system and installation failures.

BMI system guarantee

Our system guarantee gives building owners and roofers confidence in the compatibility and long-term performance of their BMI roofing system, offering edge-to-edge assurance of durability, resistance to water ingress, and covering an unlikely failure of the product system.

BMI product guarantee

Our single-product guarantee has been developed to ensure every BMI product used in a roofing application will perform as expected. Our product guarantees support our membranes, tiles and components providing peace of mind that our products will protect you and your property.

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Verified performance


All our products, systems and solutions are developed and tested to surpass even the strictest of standards.

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