Based in London, Guaranteed Asphalt are one of the leading roofing companies in the UK and we are also the UK's sole manufacturer/installer of mastic asphalt and rubberised hot melt. This gives us a unique edge on price and supply, both critical elements in the modern era of construction, particularly with the latest public sector contracts where the cost and programme are trimmed to the bone. Apart from mastic asphalt and hot melt systems, we are one of the UK's leading roofing contractors in built-up felt, living roofs, single-ply and liquid applied coatings.
Reviews (3)
Jean-Baptiste G.
Nov 13, 2020
Guaranteed Asphalt was mandated to inspect the roof of my property following a leak. On the first appointment they did not show up, no notice and no apologies. On the second appointment they arrived late, checked the leak within my house, told me they would go get the ladder from their car to inspect the roof, but never came back. When I asked why they did this, they replied the leak could not come from the roof, without checking the roof. Later, another contractor came and found gaps between the roof and the gutter, and between the drainage pipe and its passage within my roof, which, should these be sealed properly, would not let water in. My roof was installed by Guaranteed Asphalt. If you are looking for professional roofers, with strong work ethic, and non-lazy staff, pick a different company.
Dominic Ellis
Jan 29, 2017
David Jones
Jan 16, 2016
