SEL Divisional Websites

SEL Environmental Ltd     Tel: 01254 589987     Email:

SEL Environmental Ltd is a privately owned specialist contractor with over 20 years of experience in sustainable drainage solutions and gas protection barriers. For clarity we have separated our specialisms into 6 independent divisions which concentrate on the design, supply and installation of specialist products, services and solutions for the construction industry. Click on the links below for more information or give us a call if you have a project you would like to discuss.

Sustainable drainage solutions and products for Housing,Office, Retail, Warehousing, Industrial, Leisure and School developments.

Quality assured installation of attenuation tanks, pond liners, podium deck drainage systems, permeable pavement liners and reed beds.

Cutting edge rooftop sports facilities e.g. MUGAs or running tracks combining water management systems with quality sports surfacing

Remote integrated water management solutions that combine monitoring sensors, remote valve operation technologies and cloud computing

Single point of contact to all parties involved in the design, supply, installation and validation of a complete gas protection system

Virtual Curtain Gas Migration System is an alternative to a gravel vent trench and the ideal solution to intercept, treat and control lateral migrating gases.


Turnkey Solutions

SEL can provide complete  offer design, supply and installation packages, install only or supply only, to suit your requirements. We can provide technical advice over the phone or full design support. We offer a free design review service and have an extensive library of technical information, specifications and DWG CAD details we can provide for your assistance.

SEL have Products and Solutions for; SuDS surface water drainage for housing, SuDS surface water drainage for commercial, Permeable pavement enhancement solutions, SuDS surface water treatment solutions for car parks, Rooftop Running Lane installation, Rooftop Muga with a choice of surface finishes, Playdeck areas for schools, Blue roof systems, Green roof aka living roof systems, Retrofit Suds for surface water treatment, management and green infrastructure, Rain garden systems to green, grey zones, Green Infrastructure system for new and retrofit, Ground gas protection, Lateral gas migration barrier, Gravel vent trench alternatives. All our SuDS solutions can integrate with green roof / living roofs, blue roofs, detention ponds, swales, permeable paving, rainwater harvesting, filter trenches, infiltration, voided sub-base attenuation, modular attenuation tanks, refuelling area containment, oil interception and treatment and vehicle washdown areas. They are ideal to help overcome high water table, unstable soils, high rock head, shallow outfall, contaminated soils or gassing issues.

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