As leading independent installers and service providers for sewage treatment plants, septic tanks and septic tank conversion units throughout East Anglia and surrounding Counties of London, we are continuously installing ‘off mains’ drainage systems.
Our Portfolio page is designed to give consumers access to projects we have conducted. Listed below are some examples of projects we have carried out for both domestic and commercial clients alike.

Septic Tank Problem in Hertfordshire Solved!
Septic tank problems were identified at this property in Hertfordshire [...]

Septic Tank Problem in Woking, Surrey
After moving into a property with septic tanks problems in [...]

Damaged Sewage Treatment Plant in Guildford, Surrey
For sewage treatment plant and septic tank installations in Surrey, [...]

Sewage Treatment Plant Installation in Essex
Sewage treatment plants in Essex are becoming increasingly more popular [...]

Septic Tank Problem in Cambridgeshire
Building Contractors identified septic tank problems at this property in [...]

Sewage Treatment Plant Project in Suffolk
Sewage treatment plants are becoming more popular in Suffolk as [...]
Septic Tank Installation in Essex
We were approached by a homeowner looking for advice regarding [...]

Sewage Treatment Plant Installation in Norfolk – National Trust
Sewage treatment plants offer Norfolk homeowners with a modern alternative [...]

Septic Tank Problem in Suffolk Solved!
After years of putting up with septic tank problems the [...]

Septic Tank Problem in Essex Solved!
Septic tank problems in Essex are common due to much [...]

Sewage Treatment Plant Installation in Bedfordshire
At this property in Bedfordshire we installed and commissioned a [...]

Septic tank conversion system installation in Essex.
Mantair was contacted by the owner of a property regarding [...]

Sewage Treatment Plant Installation in Wendover, Buckinghamshire.
When the owners of a property located on the outskirts [...]

Septic Tank Problem – Cromer Lodge, Felbrigg, Norfolk.
Part of the former Gate Lodge to Felbrigg Hall, Cromer [...]

Sewage Treatment Plant Installation in Suffolk – National Trust
Sewage treatment plants offer Suffolk homeowners with a modern alternative [...]

Septic Tank Problem in Hertfordshire
As a leading ‘off mains’ solution provider throughout Hertfordshire and [...]

Septic Tank Installation in Woodbridge, Suffolk
Mantair was contacted by the owner of a property located [...]

Sewage Treatment Plant Installation Arrington, Cambridgeshire.
Located on the delightful Wimpole Estate in South Cambridgeshire is [...]

Septic Tank Upgrade – Mill Cottage, Blickling, Norfolk
Located on the delightful Blickling Estate in North Norfolk is [...]

Orford Ness Nature Reserve, Suffolk – Sewage Treatment Plant Installation.
Orford Ness is a 10 mile shingle spit of [...]