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Sewage Treatment Plant Servicing in Oxted

Servicing, repairs and desludging for treatment plants at homes, conversions and rural businesses in and around Oxted.

Treatment plants have become a familiar sight in the countryside around Oxted. You’ll find them behind barn conversions, at newer homes built on old farmyards, and at houses where an ageing septic tank had to be replaced. They clean waste water far better than a septic tank, but only while every part keeps working. Some serve a single cottage, while others take the waste from a cluster of homes sharing one system.

Much of the land here drains to the River Eden, which rises at the foot of the Downs near Titsey and runs through the town before heading south towards Haxted and Kent. Gibbs Brook and a web of field ditches feed it along the way. A plant that sends its treated water into one of these needs to produce clean effluent, so a sluggish blower or sludge carrying over is more than a minor nuisance.

Our engineers service all the main makes, carry the most common spares and can desludge on the same visit using our own tankers. You get a written report every time, which is handy to have when you come to sell.

What's included

What we check at a service

The parts that keep a plant treating properly, and the ones that tend to fail.

  • Lid and access

    The lid, seals and fixings are checked so the plant stays safe and watertight.

  • Blower and air supply

    We check the blower is running correctly and that air is reaching the diffusers, because that’s what keeps the bacteria working.

  • Filters and media

    Where your plant has filters or media, we check they aren’t blocked or clogged.

  • The final effluent

    We look at what’s leaving the plant, which is a quick guide to whether it’s treating properly.

  • Outfall and drainage field

    We look at where the treated water goes, so problems with the outlet or drainage field are picked up early.

  • Control panel

    We check the panel, its settings and any warning lights, and make sure it’s safe.

Fixing faults and removing sludge

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A Clearmasters service van at a customer’s property

Plants on the sand and plants on the clay

North of the railway, many plants send their treated water into a drainage field, and the sandy ground there usually takes it. Further south, on the clay around Tandridge, Crowhurst and Blindley Heath, a ditch or stream is often the only workable outfall.

A clay-country plant is only as good as the ditch it drains to. If the outfall silts up or the ditch overgrows, treated water backs up towards the plant and can flood the final chamber. We check the outlet as part of every service, and we can quote for a new treatment plant installation if an old system has had its day.

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A Clearmasters service van

Desludging

Every treatment plant builds up sludge, and it needs removing before it goes beyond what the plant can hold, usually at least once a year. Leave it too long and solids can carry over into the final chamber and out to your drainage field or watercourse.

We can desludge on the same visit as your service, using our own tankers.

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Local to you

Treatment plant servicing around Oxted

Our engineers look after treatment plants in Oxted, Limpsfield, Limpsfield Chart, Tandridge, Titsey, Tatsfield, Crowhurst, Blindley Heath, Lingfield, Dormansland, Godstone and the farms and conversions in between. That includes plants at single cottages, groups of converted barns and small rural businesses. See the full Oxted area list.

Other services in Oxted

We look after the whole system, not just one part of it.

Related services

Call 03333 233566

What our customers say

9.84/10

Checkatrade

From 134 reviews · Read them
4.9/5

Google

From 63 reviews · Read them

Scores as of October 2026

★★★★★

Great local company used a few times to maintain and repair our domestic sewage system. Responsive and know what they’re doing!

Checkatrade review Checkatrade · RH8
★★★★★

Good value, prompt and helpful service. Will use again.

Checkatrade review Checkatrade · RH9
★★★★★

I've used Clearmasters for the past year and they've always been outstanding! They are very efficient to deal with in the office, they are very reasonably priced and their engineers are among some of the most professional i've met. I would highly recommend them to anyone.

Checkatrade review Checkatrade · TN16
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Free, no-obligation quote

Book a treatment plant service in Oxted

Let us know your plant’s make and any warning lights or smells, and we’ll quote and book an engineer.

  • Free quotes for servicing and repairs
  • Engineers carry the most common parts
  • Emergency call-outs 24/7
Emergency? 03333 233566

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Questions answered

Treatment plant questions

Does the River Eden affect treatment plants around Oxted?

Indirectly, yes. Many plants in this area send their treated water to ditches and streams that feed the Eden. That water has to meet the standard set by the General Binding Rules or a permit. Regular servicing keeps the plant treating properly and protects the river downstream.

Do you service my make of plant?

We service and repair the common makes, including Klargester, Conder, Marsh, Graf, Tricel and WPL Diamond. If you’re not sure what you have, send a photo of the lid or panel when you get in touch.

Do you install new treatment plants?

Yes. If your old plant or septic tank needs replacing, we can quote for a new treatment plant and, if needed, a new drainage field.

Who is responsible for the ditch my plant drains into near Oxted?

Usually whoever owns the land it runs through, under what are known as riparian rules. If the ditch silts up or gets blocked, treated water can back up towards your plant. It’s worth walking the outfall after big storms and clearing anything that has washed in.

Is servicing a legal requirement?

If your plant discharges to the ground or a watercourse, the General Binding Rules say it must be maintained by someone competent in line with the manufacturer’s instructions. Regular servicing is the simplest way to show that.

Can I take over a plant when I buy a house?

Yes, and it’s worth booking a service soon after you move in, so you know its condition and get a fresh service record. Ask the seller for any manuals and past records too.

Got a different question? Call 03333 233566 or send us a message.

Fully accredited & compliant

We're independently vetted and certified so you can trust who you're letting onto your site.

SafeContractor

Health & safety pre-qualification accreditation, verifying our processes meet recognised safety standards.

RISQS

Railway Industry Supplier Qualification Scheme — approved to work safely within the rail industry supply chain.

Achilles UVDB

Utilities Vetting Database membership, confirming we meet the utilities sector's supply chain standards.

Trading Standards Approved

Vetted and approved under the local authority's trusted trader scheme for honesty and fair dealing.

NADC Member

Members of the National Association of Drainage Contractors, the UK trade body for the drainage industry.

Registered Waste Carrier

Registered with the Environment Agency, so your waste is handled and disposed of fully within the law.

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