Drainage problems?
We can help.
Professional drainage and septic tank specialists. Fast emergency response, expert repairs and hassle-free septic servicing — across Oxfordshire and surrounding areas.
Our Services
Complete drainage & septic solutions
From emergency blockages to planned septic tank maintenance — one specialist team for every drainage need.
Emergency Drainage
24/7 rapid response for blockages, overflows and flooding.
Learn moreSeptic Tank Emptying
Regular and one-off emptying for septic tanks and cesspits.
Learn moreCCTV Drain Surveys
Detailed internal inspection to locate and diagnose issues.
Learn moreHigh-Pressure Jetting
Powerful cleaning to restore full flow and clear blockages.
Learn moreDrain Repairs
Excavation, lining and pipe replacement by specialists.
Learn moreTreatment Plants
Service and maintenance for sewage treatment systems.
Learn moreDrainage emergency? Don't wait.
Active overflow, flooding or sewage? Tell us what's happening and we'll prioritise your call.
How It Works
Help in four simple steps
- 1
Tell us the problem
Pick your issue and urgency. Takes under a minute.
- 2
Add photos & details
Show us what's happening so we arrive prepared.
- 3
We assign a specialist
An engineer is dispatched with the right equipment.
- 4
Track & approve online
Follow your job and approve any quote from your phone.
Why customers choose Drain Gain
- Fast emergency response across Oxfordshire
- Specialist septic tank & cesspit servicing
- Photo & video uploads so we arrive prepared
- Online quote approval — no phone tag
- Automatic service reminders so you never forget
- Track your job status in real time
The Drain Gain difference
A national-standard service, delivered locally
We combine modern digital convenience — online booking, photo uploads, quote approval and job tracking — with the hands-on expertise of a dedicated specialist team.
Specialist engineers
Fully trained, uniformed and equipped for every job.
Right first time
Diagnose, fix and report — backed by our workmanship.
Fully insured
Comprehensive cover for your peace of mind.
Trusted by local homeowners
Real feedback from customers across Oxfordshire.
"Drain Gain came out within the hour for our overflow. Professional, clean and sorted the problem fast. Highly recommend."
Sarah Jones
Wantage
"We use Drain Gain for both our properties. Always reliable, great with the septic tank servicing and reminders mean we never forget."
David Wilson
Oxford
"Brilliant service from Dave. Explained everything, no mess left behind. The online quote approval was so easy."
Helen Wright
Henley
"Booked a septic emptying online in two minutes. Turned up on time, fair price. Will use again."
Mark Davies
Banbury
Frequently asked questions
How quickly can you respond to an emergency?+
We aim to attend emergency drainage call-outs as quickly as possible. Submit the emergency form or call us and we'll prioritise your enquiry.
How often should a septic tank be emptied?+
Most domestic septic tanks benefit from emptying annually, though this depends on tank size and usage. We'll set a reminder so you never miss a service.
Do you offer CCTV drain surveys?+
Yes. Our CCTV surveys inspect inside your drains to locate blockages, cracks, root ingress and collapsed sections without excavation.
Can I book a septic tank service online?+
Absolutely. Use our online booking journey to choose a service, date and time that suits you.
Do you serve my area?+
We cover Oxfordshire and surrounding areas including Abingdon, Didcot, Wantage, Witney, Henley and Reading. Contact us to confirm coverage.
Need a drainage specialist today?
Get help now or book a septic tank service online in minutes.