CH Services

Simple, cost-effective & convenient septic tank solutions

across the South of England

The AirseptorContact us

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What We Do

CH Services specialise in the conversion of existing septic tanks and cesspits into sewage treatment plants, while still abiding with Environmental agency standards and for less than half the cost of traditional plants!

All Inclusive

Our prices start at £3750 + VAT, fully inclusive of labour and materials.

Free Quote

CALL US NOW for a free quote no obligation, and save money on a sewage treatment plant and regular tank emptying today.

For more information about our tank conversion unit please click the link below.

Looking For A Drainage Company That’s Reputable And Affordable? Call us now

Why Choose us?

Low Prices

Competitive and affordable.


Committed to making sure our customers’ needs are met, by providing a friendly and professional service.


We do what we say we’re going to do and turn up when we say we will.

Fast response time

We don’t leave our customers waiting.

Customer Reviews

I installed an Airseptor system about 5 years ago to convert my existing septic tank to a sewage treatment plant. It was a great alternative to installing an entirely new sewage system which I was advised to do by another professional, at a much more affordable price. The system has worked well during this period, and more importantly, on the couple of occasions when issues have cropped up, CH Services have been very responsive (visiting either on the day or the day after the call) and have taken appropriate action straight away with zero fuss. Very happy.

Elizabeth CookChiddingfold

We have had an Airseptor sewage treatment plant for eight years. The system was very simply fitted into our existing cess-pit. There was no significant disturbance to our garden and all that was needed was a 240v electricity supply to operate a small, quiet air compressor and an easily buried 20mm plastic pipe to carry the clean, treated water into a gully at the end of the garden. The entire system is fully Environment Agency compliant. We have been delighted with our experience of the Airseptor system. The installation cost was significantly less than that of comparable new tank systems and running and annual maintenance costs are very low. CH Services have provided a very efficient and friendly service throughout and we would have no hesitation in recommending their system.

David HughesSoberton Heath

A very old septic Tank, shared by two pensioner households, was replaced with an Airseptor in October with the minimum of fuss and very efficiently. We are delighted with the result. We can strongly recommend C Humphrey Services.

Audrey ButlerLickfold

I live in Chiddingfold and I have found the Airseptor to be a great system, it is just like being on main drains!

Ron AdamsonChiddingfold

CH Services converted our foul water tank into a sewage treatment plant using the Airseptor system. They were efficient, punctual, pleasant and very competitive so we can strongly recommend them.

Robert WalkerChiddingfold

Trevor Hunnings

CH Services Surrey have installed a new sewage treatment plant at my house in Plaistow. They were fast in responding to me to conform to the new 2020 regulations. The installation was fast and efficient and there is no sign left of being there after trenches dug across our lawn it has already healed after only a week. The price, speed and efficiency leads me to have no hesitation in giving them the highest recommendation and wish this team well in their business.

Peter Ratcliff

We want to thank the team for such a wonderful service. We choose CH services because they were an affordable solution but also because they were a local company. Since we moved to our home under a year ago our cesspit was always a concern and we knew we needed a better solution. This system and conversion will save us a lot of money and hassle and allow us to not worry about the length of a shower or using the washing machine. Our cesspit is located on our neighbours ground and the neighbours even came and thanked us regarding how well the work was completed (unnoticeable), how lovely the team were and for the infilling of the existing pot hole with the extra tarmac/ dispersing left over turf in a tire track for them. Service was above and beyond.

Rachael Howes

I have used this Company for many years and have always found them to be helpful, quick and reliable and at a reasonable cost. I have no hesitation in offering my recommendation.

David Knight

It is not an overstatement to say that CH Services provided an excellent service: no fuss, highly professional and genuinely thoughtful, taking great care to cause minimum disruption. Neighbours who recommended CH Services to us have found the very neat Airseptor installation works a treat,. upgrading old Septic Tanks to modern standards at remarkably affordable rates. We expect the same and would highly recommend CH Services, based in Surrey, to do the work.

Chris Rhodes

We had an Airseptor installed in our cess pit recently at Walliswood Village Hall. Our electrician has now put the electrical connections i place for the air pump and hey presto, the pump started and water is being agitated in the cess pit and gently bubbling out to the soakaway. The whole process of dealing with C H Services was quick, easy and professional and the installation was completed on time in just over a day, without any mess and the grass grew over quickly where the new small bore outlet pipe had been sited underground. Just wish we had done this years ago!

Stan Quinnell

Excellent service! from the moment they came to review our system through to completion of the work they were polite, professional, and helpful. The work was completed promptly and the garden looks almost completely untouched. they have been excellent at answering all our enquiries. HIGHLY RECOMMEND! from Nicola Fleetcroft

Camilla Raynham

The work done was excellent even in the extremely dusty conditions when cutting a channel in the concrete floor of my work shop. The whole procedure from quote to finish was quick and professional and I look forward to reaping the benefits of the system.

Judy Field

These guys really know what they are doing and deliver. after 1 quote over £20k, another company unable to convert an old tank, CH found a way to upgrade what was already there and came up with an excellent drainage solution. it took a day and a half and you wouldn't know they been her. highly recommended.

Steve Moore

EXCELLENT SERVICE. From my initial call to completion of our treatment plant the service provided has been outstanding, they were responsive, polite, punctual and you wouldn't even know the work had been carried out, the garden was left how it was found, I would not hesitate in recommending this Company, keep up the good work - Very happy customer indeed! Sarah & Simon Murrell

Sarah & Simon Murrell

Having had a quote of £15,000 to replace our existing septic tank, which although in good construction, was no longer compliant with latest regulations, we decided to see if there was another option, and came across the Airseptor system offered by C Humphrey Services. A site inspection was promptly arranged with Charles and Matthew, who confirmed our system to be suitable form conversion, work that was competently and promptly carried out the following week. We achieved about a 70% cost saving and a lot of (unnecessary) digging and excavation work. Much recommended.

Mark Saunders

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    Contact Details

    Areas Covered:
    Devon, Dorset, Hampshire, Kent, Summerset, Surrey and Sussex.

    This is the area we would normally work within, but all areas considered south of the Midlands.


    01483 277777

    Farnhurst Farm, Guildford Road, Alfold, GU6 8JS

    Area Covered