Althon large precast headwalls are suitable for pipe sizes ranging from 750mm to 1200mm concrete or plastic pipework.

We cast openings in our headwalls to suit the outsider diameter of the connecting pipework. Our large headwalls can be factory fitted with a range of accessories such as flap valves, penstocks, gratings and handrails.  

Our range of large headwalls includes our H20C headwalls, SP20 headwalls and SFA sewers for adoption complaint precast headwalls.

For our full range of precast concrete headwalls please visit the Precast Concrete Headwalls section of our website

Alternatively you can use our Headwall Specifier to find the headwall you require

If you require any assistance or more information please contact us by phone on 01603 488700 or by email sales@althon.co.uk