Specialists in Septic Tank & Sewage Treatment Plant Services

End-to-end Service

Advisory

Independent advice and compliance guidance

Design / Manufacture

Tailored solutions and innovative products

Installation

Professional installation and commissioning

Aftercare

Servicing, maintenance, and ongoing support

Delivering sewage treatment plant services across domestic and commercial sectors

Homeowners

Estate Agents/Surveyors

Insurance Companies

Businesses

Local Authorities

Charities/Trusts

Large Scale Commercial

Discover What We Do

Domestic Solutions Commercial Solutions

Our Expertise

Sewage Treatment Plant Services

Looking for a modern alternative to a septic tank? Sewage treatment plants offer cleaner, compliant solutions approved by regulators.

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Image of a crane lowering a septic tank for the blog Signs Your Home Might Need A Better Septic Tank Solution

Septic Tank Solutions

From repairs to replacements, we provide trusted septic tank solutions to keep your system compliant and problem-free.

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Septic Tank Conversions

Upgrade your old septic tank with our unique offering, our easy-fit Mantair conversion unit - a hassle-free way to meet regulations and protect the environment.

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Regulatory Compliance & Advisory

Unsure about drainage regulations? We offer expert, stress-free advice on General Binding Rules and Building Control to keep your system fully compliant.

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Insurance & Claims Assistance

Damage to your drainage system? We work with insurance experts to help you claim for repairs with less stress and no hassle.

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Drainage Surveys

Our specialist surveys give you peace of mind by assessing the condition and compliance of your drainage system.

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Consultancy

We work closely with domestic and commercial clients, providing expert advice on off-mains drainage systems, installations, and warranty claims.

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Maintenance & Servicing

Keep your septic system running smoothly with our reliable maintenance and servicing solutions.

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Free Site Inspections

If you have a septic tank problem or requirement for sewage treatment plant services, contact Mantair for a free site inspection and assessment.

We cover Bedfordshire, Berkshire, Buckinghamshire, Cambridgeshire, Essex, Hertfordshire, Kent, Norfolk, Oxfordshire, Northamptonshire, Suffolk, Surrey and Sussex. County not listed? Get in touch and we’ll see if we can assist.

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Solving septic tank problems since 1987.

From humble beginnings in 1987, Andrew Skilling started a small family business designing and installing bespoke wastewater treatment systems for rural dwellings without access to mains drainage. Since then, Mantair has grown to be one of the most established and recognised brands in solving domestic septic tank problems and installing sewage treatment systems.

About Us