Mantair Ltd

Established in 1987, Mantair Ltd is one of the UK’s leading independent wastewater treatment
specialists, providing innovative, compliant, and sustainable solutions for commercial and
domestic sectors. As a family-run business, they combine nearly four decades of expertise with
a practical, customer-focused approach.
The company designs, installs, and maintains bespoke septic tank and sewage treatment
systems, with a strong track record of delivering complex projects on time and within budget.
Their work spans large-scale developments, heritage and conservation sites, and specialist
installations, with clients including the RSPB, National Trust, Milton Estates, Bressingham
Steam Museum, Cory Group, and Morgan Sindall. They have also featured on Grand Designs
several times.
Mantair Ltd’s reputation is built on technical excellence, meticulous project management, and
strong stakeholder engagement. Accredited with CHAS Elite and members of British Water and
the NADC, Mantair Ltd meets the highest safety, environmental, and quality standards. Their
experienced in-house team - many with over 30 years in the industry - ensures exceptional
continuity and technical skill. Being an independent installer of all major manufacturers, Mantair
Ltd focuses on all aspects of an installation, from cost to visual impact.
In addition to installations, Mantair Ltd designs and manufactures the Mantair Conversion Unit -
a cost-effective solution for upgrading septic tanks to meet regulations without full system
replacement.
From navigating regulations to complete project delivery, Mantair Ltd offers a single, reliable
point of contact, delivering wastewater treatment solutions that protect the environment

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