Septic Tank Problems?
Mantair are market leaders in septic tank problems and providing off mains drainage solutions.
Solving septic tank problems since 1987.
From humble beginnings in 1987, Andrew Skilling started a small family business designing and installing bespoke waste water 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.
Septic Tank & Sewage Solutions
Standing the test of time for over 30 years, Mantair are one of the UK’s leading independent septic tank and sewage treatment plant specialists, with experience in all forms of septic tank problems. View our portfolio.

Septic Tank Problems
If you’re experiencing problems with your septic tank or require a repair, help is at hand with Mantair. We’ve been inspecting, repairing, converting and updating septic tank systems for over 25 years. If you are experiencing any type of septic tank problem, please don’t hesitate to get in touch.

Septic Tank Installation
Our ‘in house’ contracting division provides a professional service in the field of wastewater treatment products, including design, installation and commissioning of septic tanks, septic tank conversions and sewage treatment plants, for both commercial and domestic customers.
Septic Tank Insurance
The cost to repair or replace a damaged drainage system may be covered by your existing buildings insurance and Mantair works in partnership with the UK’s leading drainage insurance claims management company to simplify your claims process via a unique insurance claims management service.
Don’t just take our word for it…
We always love to hear feedback from our customers. Here is what our customers have to say about Mantair.
Highly recommended!
Kevin turned up exactly when he said he would, he was extremely knowledgeable and friendly. He then provided the quote later that day.
All of the office team (first enquiry, payment, EA queries) I spoke to were all equally as helpful and knowledgeable.
On the day of installation the team were prompt in arriving and cracked in with the job. The hurdles that popped up during installation were dealt with promptly and without fuss. By the end of the installation the weather really wasn’t on their side, however they left my garden as neat as physically possible.
Thank you for a brilliant job, we look forward to having you back for our yearly service.
Staff at the end of the phone great to deal with also.
Excellent from start to finish.
The malfunctioning sewage system in place was causing me considerable stress and worry, Mantair from the start took the problem out of my hands, they worked solidly for 2 days to transform the system. Their family values mean you feel you are being treated considerately and individually, not just ‘another job’, excellent service.
I cannot thank Mantair enough for the work completed in such a professional manner, I would highly recommend Mantair for any drainage issues.
The Mantair Septic Tank Conversion Unit
The Mantair septic tank conversion unit is ideal for situations where the existing septic tank is discharging untreated effluent to a watercourse, or where a soakaway has failed.
The Original Septic Tank Conversion System
The Mantair conversion unit is a sewage treatment system specifically designed to fit within an existing septic tank or cesspool, effectively converting the existing tank into a small sewage treatment plant producing a clear, odourless and harmless effluent.

” The Mantair conversion unit is designed to treat domestic sewage and to achieve a final effluent standard that complies with the Environment Agency’s requirement ”

Sewage Treatment Plants
Sewage treatment plants are used in areas of the UK where mains drainage is inaccessible and provide a modern alternative to septic tank systems.
Other Drainage and Septic Tank Services
From soakaways to replacement septic tanks and site inspections, Mantair have the experience to find a solution for you.
Replacement septic tank
Designed to be installed completely below ground, spherical septic tanks provide a traditional solution to sewage disposal needs for domestic dwellings. However, many authorities in the UK prohibit their use and in most instances a Sewage Treatment Plant should be considered as the first option.
Free site inspections
If you have a septic tank problem or requirement for a new sewage treatment plant installation throughout the following Counties, contact us for a free site inspection and assessment:
Bedfordshire, Berkshire, Buckinghamshire, Cambridgeshire, Essex, Hertfordshire, Kent, Norfolk, Oxfordshire, Northamptonshire, Suffolk, Surrey and Sussex.
