For 24/7 emergency callouts call: 0800 246 5347.
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Commercial drain cleaning

Keep your business running with clear, free-flowing drains.
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High-pressure jetting to clear buildup and prevent blockages
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Scheduled cleaning tailored to your business
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24/7 availability for urgent drain cleaning
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Trusted by homeowners & businesses across the UK

Burger King NHS England Waitrose Franco Manca Nestlé Buxton
Why choose OneFlow?
No callout fees
You only pay for the cleaning work itself. We don't charge to turn up, inspect, or quote. Makes it easy to get a price without commitment.
Fixed pricing
We quote a fixed price before we start. No hourly rates that spiral, no surprises based on what we find. The price we agree is the price you pay.
Same-day availability
Drains backing up and affecting your business? We can often attend the same day. Our local engineers mean faster response when you need drains cleared urgently.
Full documentation
Every clean comes with a report detailing what we did and what we found. Ready for your maintenance records, compliance files, or facilities management reporting.
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Most drains cleaned in under an hour
On site, jetted, and flowing freely - with minimal disruption.
98%
Of customers would recommend us.
6000+
Jobs completed last year alone.
Reliable service for busy businesses
Commercial drains handle far more than domestic systems - more waste, more water, more potential for problems. When drains slow down or back up, it affects staff, customers, and your ability to trade.
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Preventative cleaning
Regular jetting stops blockages before they happen. We'll set up a schedule based on your site and usage - you won't need to think about it until we call to arrange access.
One team for all your sites
Managing multiple properties? One point of contact, consistent service, and consolidated reporting across your entire portfolio.

Why choose a local team over the big names?

See how we compare to the national franchises.
The big names
What you often get with the big names.
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Hourly rates that keep climbing the longer they're on site
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Different contractor every time who doesn't know your drains
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"We'll need to come back" - and charge you again
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Chase them for reports and paperwork
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OneFlow
What you get when you call us.
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Fixed pricing agreed before we start
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Same local engineer who knows your site
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Job done properly first time, guaranteed
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Full report and guarantee on every job
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Drainer of the
year 2025
The Drainage Awards
What our customers say
Real reviews from real customers.
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“Called at 6am with sewage coming up through the shower. Engineer arrived before 8, fixed it within the hour. Can't thank them enough.”
— James T, Southampton
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“Third company I'd tried that week. The other two never showed. OneFlow answered, turned up same day, and actually fixed it. Should have called them first.”
— Michelle R, Brighton
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“No messing about. Showed me the camera footage, explained what was wrong, gave me a price, and got on with it. Exactly how it should be.”
— David H, Portsmouth
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“Blocked drain on Christmas Eve. Thought we'd be stuck for days. They came out that evening and sorted it. Absolute lifesavers.”
— Sarah K, Guildford
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“We've used them for three rental properties now. Always answer the phone, always turn up, always fair on price. Hard to find.”
— Mark L, Bournemouth
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“Engineer was honest and said we didn't need half the work another company had quoted for. Saved us hundreds. We'll use them every time now.”
— Karen W, Winchester
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“Toilet blocked on the morning of our daughter's birthday party. They had someone here within the hour and sorted it before the guests arrived.”
— Rachel M, Crawley
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“Other companies quoted over the phone then doubled it on arrival. OneFlow quoted £180, charged £180.”
— Tom S, Bournemouth
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“Drainage issue had been misdiagnosed twice by other firms. OneFlow found the real problem in ten minutes with their camera. Fixed the same day.”
— Angela D, Eastbourne
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“Rang at 11pm expecting to leave a voicemail. Actual person answered. Engineer here by midnight. Didn't think companies like this still existed.”
— Chris B, Woking
FAQs
How much does commercial drain cleaning cost?
How often should commercial drains be cleaned?
What are the signs my commercial drains need cleaning?
What's the difference between drain cleaning and drain unblocking?
What is high-pressure drain jetting?
Can you clean drains without disrupting our business?
Do you offer drain cleaning contracts?
Who is responsible for cleaning commercial drains?
Can drain cleaning prevent flooding?
Can you clean drains at multiple sites?
What happens if you find a problem during cleaning?
Still have questions?
Get in touch with our friendly support team.
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Need your commercial drains cleaned?
24/7 callouts. No callout fees.
📞 Get a callback
60-minute average response across the UK.
★★★★★ based on 180+ Google reviews