CLEARMASTERS
Pump stations in riverside developments
New blocks on the peninsula and along the river often have basement pump stations and sumps. We service them on a planned schedule, test every pump and alarm and report to the managing agent.
Learn moreGreenwich combines a historic riverside town, busy with visitors, restaurants and pubs, with some of London’s biggest new riverside developments on the Greenwich Peninsula and along the Thames. Those new blocks often rely on pump stations and plant rooms that managing agents need to keep running.
Up the hill, Blackheath and the streets around Greenwich Park are full of Georgian and Victorian houses with old drains, many split into flats. Restaurants and pubs in the town centre and around the market need grease traps emptied, especially in the busy tourist months.
Our crews work in south-east London most days and we answer the phone 24 hours a day, 365 days a year.
Our Greenwich drainage services
View all services
Pump Station Servicing
Learn more
Grease Traps & Commercial Waste
Learn more
Blocked Drains & CCTV Surveys
Learn more
Septic Tank Surveys
Learn more
Flood & Groundwater Removal
Learn more
Treatment Plant & Pump Repairs
Learn moreCovering
Greenwich
Greenwich
24/7
call-outs
call-outs
Homes &
businesses
businesses
Waste transfer
notes
notes
Own tanker
fleet
fleet
What we do for Greenwich customers
Grease traps for restaurants and pubs
Restaurants, cafés and pubs serving Greenwich’s visitors produce a lot of fat. We empty grease traps on a schedule that suits your season and leave a waste transfer note every time.
Learn more
Drains in Georgian and Victorian homes
We clear blocked drains in period houses and flats with high-pressure jetting and trace which section is causing the problem.
Learn more
CCTV surveys for buyers and agents
A CCTV survey shows the condition of old drains before you buy or plan works, with a written report and photos.
Learn moreLocal knowledge
Drainage in Greenwich: what to know
A historic town beside some very new developments.
Riverside blocks
New developments rely on pumps and sumps. Planned maintenance avoids breakdowns affecting every resident.
Visitor season
Restaurants get busier in summer, so grease traps may need emptying more often.
Period homes
Georgian and Victorian drains have been altered over the years. A survey shows what you really have.
Local to you
Areas we cover in and around Greenwich
We cover Greenwich and the neighbouring parts of south-east London.
Greenwich · and neighbourhoods
- Greenwich
- Greenwich Peninsula
- Blackheath
- Charlton
- Maze Hill
- East Greenwich
Surrounding areas · homes and businesses we cover
- Deptford
- Lewisham
- Woolwich
- Kidbrooke
- Eltham
- Lee
- New Cross
- Westcombe Park
- Canary Wharf
- Isle of Dogs
- Thamesmead
- Plumstead
Not sure if we cover you?
If you’re in or around Greenwich, we cover you. Call with your postcode and we’ll confirm.
Nearby areas
Why Greenwich customers use us
For new blocks, pubs and period homes
Whether it’s a pump station on the peninsula or a grease trap in the town centre, here’s what you can expect.
-
Accredited for commercial sites
SafeContractor, Achilles UVDB and RISQS approved, so we can get onto managed sites and meet your contractor checks.
-
Trained engineers
Our engineers and most of our tanker drivers hold current confined space entry certificates, and the engineers carry the most common parts.
-
Paperwork done properly
A waste transfer note with every collection, and a written report after surveys and services.
-
Day and night, all year
Emergency call-outs 24 hours a day, 365 days a year, with a real person answering the phone.
-
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.
-
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
★★★★★Came out within an hour on an emergency call out. Great service. Fast reliable reasonable prices. Highly Recommended
Peter D. Google review
★★★★★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!
★★★★★I have used Clearmasters for years. They are always on time, polite and reliable whether your need them to empty your septic tank or undertake maintenance work. I wouldn’t use anyone else. Local and the best.
How it works
What happens when you book
The same simple process for every job.
-
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.
-
Step 2
We come out and do the job
We send the right engineers and vehicle. It helps if:
- you tell us about parking bays, loading restrictions or the congestion zone access we’ll need
- basement hatches, manholes and plant rooms are clear and someone can let us in
- building managers and neighbours know we’re coming if shared drains are involved
-
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 Greenwich property
Tell us what you need and we’ll come back with a price. If something’s flooding, call us now.
- Free quotes for planned maintenance
- Pump stations, grease traps and drains
- Reports for managing agents
Urgent?
03333 233566
Questions answered
Greenwich drainage FAQs
What managing agents, restaurants and homeowners in Greenwich ask us most.
Do you maintain pump stations in riverside blocks?
Yes. We service pump stations and sumps on a planned schedule, report to the managing agent and respond 24/7 if one fails.
Should our restaurant’s grease trap be emptied more often in summer?
Often, yes. Busier kitchens fill traps faster. We can set a schedule that changes through the year.
Can you survey drains in a listed house?
Yes. A CCTV survey is non-invasive and shows the drains’ route and condition without any digging.
Who is responsible for a shared drain?
Shared drains are usually the water company’s. We can find the problem and tell you whose section it’s in.
Can you work with building inductions?
Yes. We’re SafeContractor, Achilles UVDB and RISQS approved.
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.