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.

Find out more about Mantair

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 and Solutions

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 Problems
Septic Tank Regulations and Guidelines

Septic Tank Regulations

As of January 2015, new rules for septic tanks were introduced, concerning their use and how these systems are regulated. These rules were introduced by DEFRA and the Environment Agency, and are referred to as ‘General Binding Rules’ to be strictly enforced by January 2020.

Septic Tank Regulations 2020
Septic Tank Problems and Solutions

Septic Tank Conversions

The Septic Tank Conversion Unit by Mantair 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.

Our Septic Tank Conversion Unit
Septic Tank Regulations and Guidelines

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 Installation
Septic Tank Insurance

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.

Septic Tank Insurance
Sewage Treatment Plant Installers

Sewage Treatment Plants

Sewage treatment plants produce a level of treatment that allows the resulting effluent to be discharged directly into ditches, streams and rivers. Providing a modern alternative to septic tanks, these systems are the preferred choice for regulators.

Sewage Treatment Plants

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.

Mantair Ltd
Based on 83 reviews
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Berenice FennBerenice Fenn
20:54 15 Jan 24
In November 2023 we had a Tricel treatment plant installed by Mantair and found them to be excellent in every way. They handled a difficult job on an SSSI site in trying weather conditions. The company handled the permission required from the Environment Agency. Their installers, Ryan and Sam were very helpful and friendly and worked really hard to get the job done. They made a great job of clearing up after they had finished and supplied new gravel for our car parking area and even re-seeded our lawn! We wouldn't hesitate to recommend Mantair to anyone considering a new system, they are a very professional company to deal with. Very happy customer.
Pat BowenPat Bowen
17:15 08 Dec 23
After having a problem with my septic tank I gave mantair a call to see if they could help, I spoke to Kevin and we quickly arranged a day for an on site meeting to discuss any works to be carried out. Kevin quickly diagnosed the problem and advised me of the work needed. A very genuine person and company which I have no hesitation in recommending.
Susan WilliamsSusan Williams
09:46 04 Dec 23
Drove all the way from Essex to North Wales to install a new system on my septic tank. Exceptional Service from Sam & Luke. Polite, Courteous, Helpful and Friendly. Nothing too much trouble for them and they left the area they were working in immaculate. Explained to me how the system worked and answered all my questions without me feeling stupid or a bother to them. I can not recommend this company enough - from start to finish from the planner to the installation ABSOLUTELY FANTASTIC. Can not recommend enough. Thank you guys very, very much.
Steve DelarreSteve Delarre
15:34 27 Nov 23
Had a new system installed just a few weeks ago. The discharge pump has failed for the second time. To be fair Mantair got an engineer out on the next working day and he investigated and corrected the issue. Fingers crossed.
Denise DaviesDenise Davies
07:46 24 Nov 23
Mantair fitted a treatment plant in our septic tank. The service was brilliant from first contact to completion of works. Everyone involved was professional and a pleasure to meet. Would highly recommend.
Kevin DuffKevin Duff
13:59 13 Nov 23
Superb service in site assessment of our current septic tank and advice after inspection. Kev from Mantair was able to come and inspect the same day we called and the information he provided was professional, clear and very informative. We highly recommend Mantair after seeing work undertaken at a neighbours property and also our direct contact.
the firsthe firs
11:43 19 Oct 23
Mantair replaced the failing septic tank at our Care home last month. We've been hugely impressed with their service from the starting point of surveying the site and quoting to the stage of installation and completion. We'd like to say a big thank you to everyone at Mantair especially Steve and Ryan who were superb and made the whole experience hassle free for what seemed to us such a massive job.
Sarah VolkertSarah Volkert
10:16 14 Jun 23
Mantair are a first class team to work with. We had to replace a failed and shared communal drainage system servicing 8 homes, with a new drainage field and Sewage Treatment Plant. From start to finish Mantair were very responsive, professional, communicative, helpful, knowledgeable and reliable. Throughout, they handled all enquiries from the various homeowners and management team, as well as liaised with all the relevant organisations, building control, EA etc. The quality of work was excellent. It was a large, challenging and complex project to co-ordinate. The installation was delivered on time and the finish even included grass seeding! I would highly recommend Mantair and their team, Matt, James, Nicola, Rowan, Sam x 2 and the rest of the team who helped us.

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.

Find out more about our Conversion Unit
Mantair conversion unit

” 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 “

Mantair conversion unit logo

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.

Sewage treatment plant diagram

Independent Supplier & Installer of Sewage Treatment Plants

Our in house team of engineers are extensively experienced in all packaged sewage treatment plant processes.  We are able to tailor a sewage treatment system to each individual property.

Find out more about Sewage Treatment Plants
Tricel septic tank diagram

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.

Septic Tank Soakaway

Every septic tank should have a soakaway / drainage field connected to the outlet of the tank.

A soakaway / drainage field is used for the disposal of the overflow from a septic tank into the sub-strata.

Find out more about septic tank soakaways

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.

Find out more about Sewage Treatment Plants

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:

BedfordshireBerkshireBuckinghamshire, CambridgeshireEssexHertfordshireKent, Norfolk, Oxfordshire, Northamptonshire, Suffolk, Surrey and Sussex.

Get in touch today
Mantair van out on septic tank inspection