Why choose alwitra®?
alwitra® have been manufacturing the EVALON® waterproofing membranes for over 45 years and they strengthen their product range further with a variety of compatible system components, allowing for a seamless finish on every project.
![Worldwide](https://www.alwitra.co.uk/media/images/uploaded/worldwide.1.featured.png)
As used on landmark architecture throughout the world
![almost 40 years experience with waterproofing systems in the UK](https://www.alwitra.co.uk/media/images/uploaded/almost-40-years-experience-with-waterproofing-systems-in-the-uk.151.featured.png)
Almost 40 years experience with waterproofing systems in the UK
![Tested & Certified](https://www.alwitra.co.uk/media/images/uploaded/tested-and-certified.3.featured.png)
All of our membranes are thoroughly tested and certified
![Environmental Product Declarations](https://www.alwitra.co.uk/media/images/uploaded/environmental-product-declarations.4.featured.png)
First in the industry to introduce Environmental Product Declarations
![Trusted](https://www.alwitra.co.uk/media/images/uploaded/trusted.37.featured.png)
Trusted by architects, roofing contractors & developers
![25 Year Guarantee](https://www.alwitra.co.uk/media/images/uploaded/25-year-guarantee.38.featured.png)
25 Year Guarantee on our waterproofing membranes
![We waterproof several million square metres of roof every year](https://www.alwitra.co.uk/media/images/uploaded/we-waterproof-several-million-square-metres-of-roof-every-year.39.featured.png)
We waterproof several million square metres of roof every year
![We have one of the industry's largest teams of expert consultants](https://www.alwitra.co.uk/media/images/uploaded/we-have-one-of-the-industry-s-largest-teams-of-expert-consultants.40.featured.png)
We have one of the industry’s largest teams of expert consultants
We're proud to supply main contractors, developers, roofing contractors, architects, local authorities and more...
![Archdiocese of Liverpool](https://www.alwitra.co.uk/media/images/uploaded/archdiocese-of-liverpool.111.featured.png)
![Coventry City Council](https://www.alwitra.co.uk/media/images/uploaded/coventry-city-council.123.featured.png)
![Aecom](https://www.alwitra.co.uk/media/images/uploaded/aecom.133.featured.png)
![3D Reid](https://www.alwitra.co.uk/media/images/uploaded/3d-reid.97.featured.png)
![Balfour Beatty](https://www.alwitra.co.uk/media/images/uploaded/balfour-beatty.89.featured.png)
![InFrame Garden Rooms](https://www.alwitra.co.uk/media/images/uploaded/inframe-garden-rooms.156.featured.png)
![Churchill](https://www.alwitra.co.uk/media/images/uploaded/churchill.112.featured.png)
![Fife Council](https://www.alwitra.co.uk/media/images/uploaded/fife-council.124.featured.png)
![Angell Thompson](https://www.alwitra.co.uk/media/images/uploaded/angell-thompson.134.featured.png)
![Alec French Architects](https://www.alwitra.co.uk/media/images/uploaded/alec-french-architects.98.featured.png)
![ISG](https://www.alwitra.co.uk/media/images/uploaded/isg.91.featured.png)
![Aloft Roofing & Leadwork](https://www.alwitra.co.uk/media/images/uploaded/aloft-roofing-and-leadwork.88.featured.png)
![English Heritage](https://www.alwitra.co.uk/media/images/uploaded/english-heritage.113.featured.png)
![Glasgow Housing Association](https://www.alwitra.co.uk/media/images/uploaded/glasgow-housing-association.125.featured.png)
![Coomber Associates](https://www.alwitra.co.uk/media/images/uploaded/coomber-associates.135.featured.png)
![Arc](https://www.alwitra.co.uk/media/images/uploaded/arc.99.featured.png)
![Jade-Aden](https://www.alwitra.co.uk/media/images/uploaded/jade-aden.92.featured.png)
![Ashtree Roofing](https://www.alwitra.co.uk/media/images/uploaded/ashtree-roofing.68.featured.png)