Septic tanks, treatment plants, grease traps and drains looked after for homes, businesses and holiday sites in Lyndhurst and the heart of the New Forest.
Lyndhurst is the main village in the middle of the New Forest National Park. Around it, homes, farms and businesses are scattered across the forest, in places like Minstead, Emery Down, Bank, Brook and Beaulieu, and many of them aren’t connected to the mains sewer. Septic tanks, cesspits and treatment plants are part of life here.
Working in the forest has its own challenges. Lanes are narrow, verges are soft, and ponies, cattle and donkeys wander freely across the roads. The soils are often heavy and slow to drain, and the streams that cross the forest are protected. All of that affects how private drainage is designed, maintained and checked.
Lyndhurst is also busy with visitors, and its pubs, cafés and hotels need grease traps emptied and drains kept clear. Our tankers and engineers are in Hampshire most days, and we answer the phone 24 hours a day, 365 days a year.
We empty septic tanks and cesspits at homes, farms and cottages across the New Forest. We match the tanker to your access, and our drivers are used to forest lanes and roaming animals. While we’re there we check the tank and tell you if anything needs attention.
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Treatment plants need a yearly service to keep them working. Our engineers service plants at homes, holiday lets and businesses around Lyndhurst, carry common parts, and repair them when they fail.
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Kitchens serving forest visitors produce a lot of fat, oil and grease. We empty grease traps on a regular schedule, with more visits in the busy months if you need them, and leave a waste transfer note every time.
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We clear blocked drains with high-pressure jetting, and when a drain keeps blocking we survey it with a camera so you know exactly what the problem is before anything is dug up.
Learn moreLocal knowledge
A national park, slow-draining soils and roaming animals all play a part here.
New or replacement systems needing planning permission go to the New Forest National Park Authority. Check early if you’re planning work.
Many forest soils are heavy and stay wet for long periods. Drainage fields here can struggle, especially in a wet winter.
Forest streams feed protected rivers and the Solent. A septic tank discharging into a stream or ditch has to be upgraded under the General Binding Rules.
Local to you
From Lyndhurst out across the New Forest, here’s where we work.
Lyndhurst · village and nearby
Surrounding villages · where private drainage is common
If you’re anywhere in the New Forest, call with your postcode and we’ll confirm.
Why Lyndhurst customers use us
Whether it’s a cesspit at a cottage in Minstead or a grease trap in the village centre, here’s what you can expect.
We’ve been emptying tanks and servicing systems since long before most of the kit on the market existed.
Tanks, treatment plants, pump stations, grease traps and drains, all handled by one team.
Our engineers and most of our tanker drivers hold current confined space entry certificates, and the engineers carry the most common parts.
A waste transfer note with every collection, and a written report after surveys and services.
Tankers from 2,000 to 4,000 gallons, jet/vac combination units, CCTV survey kit and confined space teams for pump station wet wells.
Emergency call-outs 24 hours a day, 365 days a year, with a real person answering the phone.
Checkatrade
From 134 reviews · Read them
From 63 reviews · Read them
Scores as of September 2026
★★★★★I have used Clearmasters now for 4 years and the service has been excellent. Very punctual on the day and their planning team have always been very helpful in finding convenient dates to service and maintain our pumps and tanks. I recommend.
Adam G. Google review
★★★★★Very professional operation. Super clean tanker. Responded quickly to quote and booking requests. Arrived on time. Kept us notified throughout. Very pleasant and helpful guy operating the equipment. Gave sound advice with ongoing maintenance tips. Will definitely be saving Clearmasters' contact details to use them again.
★★★★★Clearmasters have emptied our Septic Tank for many years. It is not an easy placed tank to get to but the chaps manage perfectly. I find them very efficient, friendly and polite. Thank you Valerie Wise
How it works
The same simple process every time.
Step 1
Call us or book online and tell us what you need. For businesses, let us know the best times to attend so we don’t get in the way of service.
Step 2
We agree a date and send the right vehicle. It helps if:
Step 3
You get a waste transfer note for anything we take away, and a written report after a survey or service. If it’s a regular job, we’ll remind you when the next one is due.
Free, no-obligation quote
Tell us what you need and we’ll come back with a price. If something’s overflowing, call us now instead.
Questions answered
What homeowners and businesses around Lyndhurst most often ask us.
Usually. We have tankers in different sizes and long hoses. Tell us about narrow lanes, soft verges, cattle grids or low branches when you book and we’ll send the right one.
You may need planning permission from the National Park Authority, and the new system must meet the Environment Agency’s rules. New homes also need to be nutrient neutral. Check before work starts.
Forest soils often drain slowly, so a drainage field can stay wet. Regular emptying helps by keeping solids out of the field. If it never dries out, a survey can show whether the field needs extending or replacing.
It depends on the size of the trap and how busy the kitchen is. Many businesses here need more visits in summer, and we can adjust the schedule through the year.
Yes. We’ll fit visits around your bookings, and our tankers can empty larger systems serving several units.
Yes. Our crews are in Hampshire most days and we answer 24 hours a day. Call 03333 233566 and we’ll tell you when we can be there.
Got a different question? Call 03333 233566 or send us a message.
We're independently vetted and certified so you can trust who you're letting onto your site.
Health & safety pre-qualification accreditation, verifying our processes meet recognised safety standards.
Railway Industry Supplier Qualification Scheme — approved to work safely within the rail industry supply chain.
Utilities Vetting Database membership, confirming we meet the utilities sector's supply chain standards.
Vetted and approved under the local authority's trusted trader scheme for honesty and fair dealing.
Members of the National Association of Drainage Contractors, the UK trade body for the drainage industry.
Registered with the Environment Agency, so your waste is handled and disposed of fully within the law.
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