Business Details
Sustainable Drainage & Gas Protection Experts
SEL Environmental has been delivering innovative sustainable drainage solutions across the UK construction industry for over two decades. Our expertise lies in overcoming complex subterranean challenges through technical engineering excellence, including high water tables, unstable soils, and contaminated environments. We combine specialist software with practical know-how to provide optimised, cost-effective designs while maintaining ISO9001 Quality Assurance protocols. Our collaborative approach ensures seamless integration between clients, designers, and contractors throughout project delivery. With extensive involvement in CIRIA research projects and academic partnerships, we continually develop cutting-edge solutions for evolving environmental demands.Our comprehensive service includes technical advisory support, CAD detailing, and full turnkey packages from design to installation. We maintain an extensive technical library and offer free design reviews to support clients across residential, commercial, and infrastructure sectors. Our commitment to green infrastructure extends to blue/green roofs, permeable pavements, and biodiversity-enhancing systems. As market leaders in rooftop sports installations, we deliver bespoke solutions for artificial pitches, running lanes, and multi-use games areas. Our technical capabilities integrate seamlessly with oil interception, vehicle washdown systems, and refuelling containment solutions.
Services
Sustainable Drainage Systems
Ground Gas Protection
Permeable Pavement Solutions
Rooftop Sports Installations
Green Infrastructure Integration
Highlights and features
- 20+ years delivering specialist drainage solutions for complex site conditions
- ISO9001-certified quality management systems
- Technical expertise in high water table and contaminated soil environments
- Comprehensive CAD design and technical advisory support
- Active participants in CIRIA research and industry standard development
Associations and certifications
- ISO 9001
Services
Sustainable Drainage Systems
Our engineered sustainable drainage systems manage surface water through permeable pavements, green roofs, and attenuation tanks. These solutions integrate with blue/green infrastructure to address flood risk while enhancing biodiversity. Ideal for developments facing high water tables or contaminated soils, our systems combine hydraulic efficiency with environmental compliance.
Ground Gas Protection
We design and install gas migration barriers and venting systems to protect developments from methane and radon. Our solutions include impermeable membranes, gravel vent trenches, and active vent stacks tailored to site contamination levels. Systems ensure compliance with environmental regulations while maintaining structural integrity.
Rooftop Sports Installations
Specialist rooftop installations include artificial pitches, running lanes, and multi-use games areas. Our engineered solutions incorporate drainage layers and shock-absorbing bases to meet sports performance standards while managing water runoff. Systems are designed for structural load capacity and long-term durability in urban environments.
Green Infrastructure
We implement integrated green infrastructure combining rain gardens, living walls, and detention ponds with conventional drainage. These systems enhance urban biodiversity while managing stormwater sustainably. Our designs optimise space usage in high-density developments through modular attenuation and filter trench technologies.
Permeable Pavement Solutions
Our permeable pavement systems use advanced geotextiles and void-forming layers to enable groundwater recharge. Solutions include oil-degrading systems for vehicle areas and load-bearing designs for commercial car parks. Systems reduce surface water runoff while maintaining aesthetic urban environments through sustainable material choices.
Questions
What specialist drainage solutions do you offer?
We provide sustainable drainage systems (SuDS) for housing, commercial developments, and infrastructure projects including permeable pavements, green roofs, and attenuation systems.
How do you handle contaminated sites?
Our engineered solutions manage contaminated soils through impermeable membranes, gas barriers, and controlled water treatment systems tailored to site-specific conditions.
Are your systems ISO certified?
All our operations follow ISO9001 Quality Assurance protocols ensuring consistent technical standards and documentation.
Can you assist with technical design?
We offer full CAD design support, technical specifications, and free design reviews using our extensive technical library.
What construction sectors do you work with?
We support residential, commercial, infrastructure, and sports facility projects across the UK construction industry.
