Link text you can editNI Leak Detection Logo

Septic Tank Repair Northern Ireland – Fast, Reliable Service

From leaks and cracks to overflows and blockages, our engineers repair septic tanks across Northern Ireland — protecting your home, health, and property.

5-star reviews • Local NI engineers • Emergency call-outs available

Signs Your Septic Tank Needs Repair

Not all septic tank problems are obvious. Look out for these common warning signs:
  • Strong odours around drains or tank area;
  • Slow-draining sinks, baths, or toilets;
  • Wet patches, pooling water, or unusually lush grass near the tank;
  • Waste backing up into the property;
  • Septic tank alarm sounding.
👉 If you notice any of these, call us before the problem escalates.

Why Septic Tank Problems Are Serious

Septic tank failures are more than just an inconvenience:

  • Leaks can contaminate soil and groundwater;
  • Overflows create serious health hazards and foul odours;
  • Property damage can spread quickly if left untreated;
  • Failure to act may lead to fines from the NI Environment Agency;
  • Small issues left untreated often require full tank replacements later.

Our Septic Tank Repair Services Across NI

We provide a complete repair service for septic tanks in homes, businesses, and rural properties:

  • Tank inspections and diagnostics;
  • Crack and leak repairs;
  • Replacement of damaged pipework and connections;
  • Emergency overflow response;
  • Insurance reporting and compliance checks.

Our Process – Simple and Transparent

1. Call us: speak directly to an engineer about your symptoms
2. Inspection: on-site assessment of your tank and drainage connections
3. Repair plan: clear explanation of the problem, options, and costs
4. Repair: same-day fix where possible, or scheduled work for larger jobs
5. Aftercare: maintenance advice to prevent future issues and keep compliant

Insurance & Compliance Support

Some septic tank repairs may be covered under building insurance policies.

We provide:
- Written reports with photos;
- Cost breakdowns formatted for insurers.

All repairs carried out in line with NI Environment Agency and Building Control requirements.

Related service: If a septic tank failure or sewage backup has caused indoor flooding or contamination, our Water Damage Restoration Belfast team can handle extraction, structural drying, decontamination, and odour removal—restoring your property quickly and helping prevent mould.

Septic Tank Repair Examples in Northern Ireland

In County Down, a homeowner noticed strong odours and soggy ground near their septic tank. Our team diagnosed a cracked outflow pipe and completed a full repair within one day. The homeowner’s insurer reimbursed part of the cost using our detailed report.
“They sorted our septic tank the same day we called. No more smells, and the drains are running perfectly.” – Carly, County Antrim
“The engineers repaired a cracked tank wall and provided all the paperwork for our insurer. Professional and reliable.” – Dale, County Tyrone
Call 028 9507 1126

FAQs – Septic Tank Repair Northern Ireland

Signs include bad smells, wet ground near the tank, slow drains, or waste backing up indoors.

Need Septic Tank Repairs in Northern Ireland?

Don’t ignore odours, wet ground, or blockages.
Our NI engineers provide fast, reliable septic tank repairs with insurer-approved reporting.
Request a Free Quote Today!
Call 028 9507 1126
⭐ Local plumbers • Emergency response • 5-star reviews

Coverage Across Belfast

We repair septic tanks across all six counties:

- Antrim;
- Armagh;
- Down;
- Fermanagh;
- Londonderry / Derry;
- Tyrone.


Project Logo

Leak Detection Northern Ireland

NI Leak Detection provides septic tank repair for domestic and commercial sites.
We diagnose faults, repair inlet and outlet pipework, replace baffles, seal cracks, clear blockages, and service pumps.
We restore system function, prevent contamination, and provide a report for your insurer.

Contact Us 24/7

Booking FormTel: Call 028 9507 1126Email: info@nileakdetection.co.ukAddress: 2 Mount Oriel, Saintfield Road, Belfast, BT8 7HR

© 2025

Disclaimer

NI Leak Detection, part of the PCLA group.
Property Claims Loss Assessors Ltd (PCLA) are authorised and regulated by the Financial Conduct Authority. FRN 933781.

NI Leak Detection is a trading name of Property Claims Loss Assessors LTD. By using the services of NI Leak Detection, you acknowledge and agree that all leak detection services are provided by independent third-party contractors introduced to you by NI Leak Detection.
NI Leak Detection acts solely as an introducer and does not supervise, manage, or control the services performed by third parties. All payments for services must be made directly to the respective third-party contractors. NI Leak Detection receives no commission or financial reward for providing this introduction service.
NI Leak Detection disclaims any and all responsibility or liability for the quality, workmanship, or suitability of services provided by third-party contractors.
To the fullest extent permitted by law, NI Leak Detection shall not be held liable for any loss, damage, or defects arising out of or in connection with the services provided by third-party contractors. Any concerns, disputes, or claims must be addressed directly to the contractor responsible for performing the services.
NI Leak Detection makes no representations or warranties, express or implied, regarding the services offered by third-party contractors, including but not limited to warranties of merchantability, fitness for a particular purpose, or quality of work.
This disclaimer is governed by and construed in accordance with the laws of the United Kingdom.