CLEARMASTERS
Pump stations in new developments
We service pump stations in residential and mixed-use buildings around the Arsenal and the town centre, test pumps and alarms, and respond 24/7 when one fails.
Learn moreWoolwich is in the middle of a long regeneration, with new homes on the old Royal Arsenal site and around the Elizabeth line station, alongside the older town centre and Victorian streets of Plumstead. New riverside blocks often depend on pump stations, and keeping them serviced is a big part of our work here.
Thamesmead, to the east, is built on low marshland beside the river, where drains run slowly and pumping is common. Woolwich’s busy high street and market have restaurants and takeaways that need grease traps emptied.
Our crews work in south-east London most days and we answer the phone 24 hours a day, 365 days a year.
Our Woolwich drainage services
View all services
Pump Station Servicing
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Blocked Drains & CCTV Surveys
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Grease Traps & Commercial Waste
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Septic Tank Surveys
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Flood & Groundwater Removal
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Gullies & Interceptors
Learn moreCovering
Woolwich
Woolwich
24/7
call-outs
call-outs
Homes &
businesses
businesses
Waste transfer
notes
notes
Own tanker
fleet
fleet
What we do for Woolwich customers
Blocked drains in homes and flats
We clear blocked drains in Plumstead’s terraces, Thamesmead’s estates and Woolwich’s flats with high-pressure jetting.
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Grease traps for the high street and market
Restaurants and takeaways need grease traps emptied regularly. We set up a schedule and leave a waste transfer note every time.
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CCTV surveys
A CCTV survey shows the condition of your drains, with a written report and photos for buyers, landlords or insurers.
Learn moreLocal knowledge
Drainage in Woolwich: what to know
Regeneration on the riverside.
New developments
Blocks on the Arsenal site and around the station often have private pump stations looked after by managing agents.
Thamesmead marshes
Low marshland beside the river means slow drains and a reliance on pumping.
Victorian Plumstead
Old clay drains in the terraces crack and let roots in.
Local to you
Areas we cover in and around Woolwich
We cover Woolwich and the neighbouring parts of south-east London.
Woolwich · and neighbourhoods
- Woolwich
- Royal Arsenal
- Plumstead
- Thamesmead
- Abbey Wood
- Charlton
Surrounding areas · homes and businesses we cover
- Shooters Hill
- Eltham
- Welling
- Erith
- Belvedere
- Greenwich
- Kidbrooke
- Blackheath
- North Woolwich
- Silvertown
- Bexleyheath
- Lewisham
Not sure if we cover you?
If you’re in or around Woolwich, we cover you. Call with your postcode and we’ll confirm.
Nearby areas
Why Woolwich customers use us
For new blocks and older streets
Whether it’s a pump station at the Arsenal or a blocked drain in Plumstead, here’s what you can expect.
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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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Accredited for commercial sites
SafeContractor, Achilles UVDB and RISQS approved, so we can get onto managed sites and meet your contractor checks.
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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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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.
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
★★★★★Work carried out professionally as usual, the only company I'd recommend.
Mary M. Google review
★★★★★Great service from the initial call to the guys that come out. And we’re at the house within 3-4 hours. That’s why we’ve always used them
★★★★★We use Clearmasters regularly for our cesspool emptying and can't fault them at all. Always friendly and professional, both on the phone and the drivers. Online credit card payment which makes life easy. Highly recommend.
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. Managing agents: let us know about access and who to report to.
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Step 2
We come out and do the job
We send the right engineers and vehicle. It helps if:
- the pump station kiosk or chamber cover isn’t blocked by parked cars
- someone can let us into any locked compound or plant room
- you tell us who manages the site, so reports go to the right person
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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 Woolwich property
Tell us what you need and we’ll come back with a price. If something’s flooding or an alarm is going off, call us now.
- Free quotes for pump station maintenance
- Drains, grease traps and surveys
- Reports for managing agents
Urgent?
03333 233566
Questions answered
Woolwich drainage FAQs
What residents, managing agents and businesses in Woolwich ask us most.
Who looks after the pump station in my block?
Usually the building’s managing agent or management company, unless the water company has adopted it.
What does a pump station service include?
Testing each pump, the floats and alarm, checking the control panel and cleaning out the chamber, with a written report.
Why do drains in Thamesmead run slowly?
The area is built on low, flat marshland, so drains have little fall and some rely on pumping.
Do you empty grease traps in Woolwich?
Yes, for restaurants, cafés and takeaways on the high street and around the market.
Can you survey my drains before I buy?
Yes. A CCTV survey with a written report shows the condition of the drains.
Are you available out of hours?
Yes. We answer the phone 24 hours a day, 365 days a year. Call 03333 233566.
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.