CLEARMASTERS
Blocked drains and CCTV surveys
We clear blocked drains at homes and businesses across Havant, Leigh Park, Emsworth and Hayling with high-pressure jetting, and survey them with CCTV when the problem keeps returning.
Learn moreHavant sits between two harbours, Langstone and Chichester, with Hayling Island to the south and the chalk of the South Downs rising to the north. The town and most of its neighbourhoods are on mains drainage, so much of our work here is clearing and surveying drains and looking after commercial sites.
The edges are more varied. Low ground near the harbours drains slowly, and holiday parks and caravan sites on Hayling and along the coast often rely on pump stations or private systems. To the north, villages like Rowland’s Castle, Idsworth and Finchdean have homes and farms on septic tanks, cesspits and treatment plants.
Havant’s industrial estates and high street businesses need interceptors, gullies and grease traps kept clean too. Our crews are in Hampshire most days and we answer the phone 24 hours a day, 365 days a year.
Our Havant drainage and waste services
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Blocked Drains & CCTV Surveys
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Pump Station Servicing
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Grease Traps & Commercial Waste
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Gullies & Interceptors
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Septic Tank & Cesspit Emptying
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Treatment Plant Servicing
Learn moreCovering Havant
& villages
& villages
24/7
call-outs
call-outs
Homes &
businesses
businesses
Waste transfer
notes
notes
Own tanker
fleet
fleet
What we do for Havant customers
Pump stations at holiday parks and estates
Holiday parks, caravan sites and some estates rely on pump stations to move sewage on flat ground. We service them, test the pumps and alarms, and come out 24/7 if one fails, which matters most in the busy season.
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Grease traps and interceptors
Restaurants, takeaways and pubs need grease traps emptied; industrial units and car parks need interceptors and gullies cleaned. We set regular schedules and provide waste transfer notes.
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Septic tanks in the villages
North of the town, around Rowland’s Castle, Idsworth and Finchdean, many homes are off the mains. We empty septic tanks and cesspits, and service treatment plants.
Learn moreLocal knowledge
Drainage around Havant: what to know
Two harbours, an island and the downs, all close together.
Low harbour ground
Areas near Langstone and Chichester harbours are low-lying, so drains run slowly and can be affected by high tides and heavy rain.
Holiday sites
Caravan parks and holiday sites with their own pump stations need them serviced before the busy season, not during it.
Chalk to the north
The villages towards the downs are on chalk, which feeds the springs around Havant. Tanks there should not discharge to a ditch or stream.
Local to you
Areas we cover in and around Havant
We cover Havant and the surrounding area, from Hayling Island to the downs.
Havant · town and neighbourhoods
- Havant
- Bedhampton
- Leigh Park
- Warblington
- Langstone
- Denvilles
Surrounding areas · including homes on septic tanks
- Hayling Island
- Emsworth
- Southbourne
- Rowland’s Castle
- Idsworth
- Finchdean
- Westbourne
- Purbrook
- Waterlooville
- Horndean
- Farlington
- Prinsted
Not sure if we cover you?
If you’re in or around Havant, call with your postcode and we’ll confirm.
Nearby areas
Why Havant customers use us
From island holiday parks to downland villages
Whether it’s a pump station on Hayling or a cesspit near Rowland’s Castle, here’s what you can expect.
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One call for everything
Tanks, treatment plants, pump stations, grease traps and drains, all handled by one team.
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The right kit for the job
Tankers from 2,000 to 4,000 gallons, jet/vac combination units, CCTV survey kit and confined space teams for pump station wet wells.
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Day and night, all year
Emergency call-outs 24 hours a day, 365 days a year, with a real person answering the phone.
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Paperwork done properly
A waste transfer note with every collection, and a written report after surveys and services.
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Trained engineers
Our engineers and most of our tanker drivers hold current confined space entry certificates, and the engineers carry the most common parts.
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34 years in drainage
We’ve been emptying tanks and servicing systems since long before most of the kit on the market existed.
What our customers say
9.84/10
Checkatrade
From 134 reviews · Read them
4.9/5
From 63 reviews · Read them
Scores as of September 2026
★★★★★I have used this business for several years now and they have consistently provided outstanding service.. Every member of staff has been friendly, competent and professional. Very impressive.
Antony A. Google review
★★★★★Came out within an hour on an emergency call out. Great service. Fast reliable reasonable prices. Highly Recommended
★★★★★Our family have been using Clearmasters for years and are the only choice as far as we are concerned! All the staff are friendly, helpful and accommodating. Couldn’t recommend them highly enough!
How it works
What happens when you book
The same simple process for every job.
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Step 1
Tell us what you’ve got
Call us or book online and tell us what you need. For holiday sites, let us know your busy periods so we can plan around them.
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Step 2
We come out and do the job
We send the right vehicle for the job. It helps if:
- there’s room to park a tanker close to the tank, trap or manhole
- lids, covers and hatches are clear and easy to find
- you tell us about narrow access, gates or site rules before we arrive
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Step 3
Paperwork and the next visit
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
Get a quote for your Havant property
Tell us what you need and we’ll come back with a price. If something’s overflowing, call us now.
- Free quotes for one-off jobs and contracts
- Drains, pump stations, grease traps and septic tanks
- Service plans for holiday parks
Urgent?
03333 233566
Questions answered
Havant drainage and septic tank FAQs
What homeowners, holiday parks and businesses around Havant ask us most.
When should a holiday park’s pump station be serviced?
Ideally before the busy season starts, and again during or after it depending on how hard it works. A failure in peak season affects every guest on site.
Do you empty septic tanks around Rowland’s Castle?
Yes. Homes and farms in the villages north of Havant are often off the mains, and we empty septic tanks and cesspits and service treatment plants there.
Do you cover Hayling Island?
Yes. We clear drains, service pump stations and empty grease traps across the island.
Why do drains near the harbour run slowly?
The ground is low and flat, so drains have little fall. High tides and heavy rain can also slow the flow. Regular jetting helps keep them clear.
Do you clean interceptors on industrial estates?
Yes. We inspect, empty and clean interceptors and gullies and provide waste transfer notes for your records.
Can you come out at night?
Yes. We answer the phone 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.
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.