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Drainage Field Installation & Repair
Drainage Field Installation & Repair for Septic Tanks & Treatment Plants
If your drainage field (also called a soakaway, leach field, or infiltration system) is failing, the symptoms can escalate fast: ponding, foul odours, slow drainage, and potential discharge issues.
Rated 4.9 on Google
ICE Drainage provides drainage field installation and repair for septic tanks and package sewage treatment plantsacross London and the Home Counties, supporting commercial sites, hospitality operators, and facilities management teams.
To discuss a repair, replacement, or new installation, call 0203 870 1067 or email contactus@icedrainage.co.uk.
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Our drainage field installation & repair treatment process
Step 1 Contact
To book a free, no-obligation survey appointment, either give us a call on 0203828 7719 or email us on contactus@icedrainage.co.uk.
A member of our friendly support team will reach out to discuss your requests and provide an estimated cost for your Drainage Field Installation & Repair service.
If necessary, our technicians will visit the site to review the current situation.
Step 2 Quote
Adhering to all health and safety protocols, our technicians will assess the state of your property. They will then conduct a risk assessment to avoid unforeseen issues arising during the works.
Our team will make tailored suggestions concerning the best service for your situation and address any concerns or queries. You will receive a free, comprehensive quote for your Drainage Field Installation & Repair service.
Step 3 Works
Our qualified technicians will arrive promptly, fully uniformed with ID badges, ready to begin the work.
The service will be completed in accordance with the survey, adhering to all health and safety rules. We aim to maintain a safe working environment for all parties at all times.
Our team will review and document the completed work, making sure you're pleased with the job. We promise to leave your property safe and clean.
Step 4 After care
Here at ICE Drainage, we go the extra mile to ensure all clients are satisfied.
Our dedicated customer service team strive to converse with every client following the Drainage Field Installation & Repair service to make sure all expectations have been met.
You'll also be given the opportunity to write a Trustpilot review.
Emergency Hotline
0203 870 1067
Helpline open 24 hours a day, 7 days a week
When calling please have
the following ready:
- Your Name
- Company Name (if applicable)
- Site Postcode
- The problem you're having
- Email Address
Get a Quote
Drainage Field Installation & Repair FAQs
The basics
Can a failing drainage field be repaired?
In some cases yes, though severe failures often need a new field installed.
What causes a drainage field to fail?
Common causes include age, poor design, or ground becoming waterlogged or compacted over time.
What is a drainage field?
It's the area of ground that disperses treated wastewater from a septic tank safely into the soil.
Technologies used
Do you offer percolation testing as part of this service?
Yes, we can carry out testing to make sure any new field is designed correctly.
How do you know what size drainage field I need?
It's based on your percolation test results and the size of your septic tank system.
On the day
How long does installation take?
Most installations take a few days, depending on size and ground conditions.
Why choose us?
- Cater to a wide variety of drainage situations
- Nationwide coverage, available 24/7
- Cater to commercial and domestic clients
- Free survey provided prior to quotation
- Emergency response team
- Offer a bespoke service designed to suit all your needs
- All technicians hold professional health and safety qualifications
What Is a Drainage Field (and What Does It Do)?
A drainage field is the part of your private wastewater system that allows treated effluent to disperse into the ground safely.
In simple terms:
- The septic tank or treatment plant handles settlement/treatment
- The drainage field handles infiltration and dispersal
If the drainage field is undersized, saturated, damaged, or blocked, the entire system struggles — even if the tank/plant itself is in good condition.
Signs Your Drainage Field May Be Failing
Common symptoms include:
- Ponding or standing water near the field
- Soggy ground that doesn’t dry out
- Persistent foul odours outside
- Slow draining toilets/sinks (especially after heavy use)
- Effluent backing up in chambers
- Increased need for pump-outs (treating the symptom, not the cause)
- Discoloured discharge or nuisance issues
If you’re seeing any of the above, call 0203 870 1067 — we’ll help you identify the cause and the right fix.
Common Causes of Drainage Field Problems
Drainage field issues are often caused by one (or a combination) of:
Saturation / poor percolation
- Ground conditions not suitable for current loading
- Seasonal water table changes
- Long-term saturation from overuse
Overloading and change of use
- Increased occupancy or higher wastewater volumes
- New kitchens/toilets, extended opening hours
Lack of maintenance upstream
- Excess sludge carryover from infrequent emptying
- Treatment plant performance issues affecting effluent quality
Blockages and physical damage
- Root ingress
- Crushed or damaged pipework
- Incorrect installation or poor distribution
Misuse
- Wipes, fats/oils/grease (FOG), harsh chemicals impacting treatment and infiltration
Our Drainage Field Investigation & Repair Approach
We keep it practical: find the root cause, then recommend the most cost-effective solution.
1) Site review and history
We’ll look at:
- System type (septic tank vs treatment plant)
- Usage levels and any recent changes
- Emptying/servicing history
- Symptoms and when they occur
2) Condition checks
Depending on access, we can assess:
- Chambers and distribution points
- Signs of surcharge/back-up
- Ground conditions and visible failure symptoms
- Likely restrictions or saturation patterns
3) Repair options (where feasible)
Repairs depend on what’s actually wrong. Common remedial actions include:
- Clearing restrictions and restoring flow (where appropriate)
- Targeted repairs to damaged pipework
- Addressing upstream issues causing poor effluent quality
- Recommendations to reduce loading and prevent repeat failure
4) Replacement / new installation (when required)
If the field is beyond repair or unsuitable for current demand, we can advise on replacement options and a sensible plan to get you back to a stable system.
To book a site visit, email contactus@icedrainage.co.uk.
New Drainage Field Installation
If you’re installing a new septic tank or treatment plant (or upgrading an existing system), the drainage field needs to be correctly designed and installed.
A good installation should consider:
- Expected flows and peak usage
- Ground conditions and infiltration suitability
- Access for maintenance
- Long-term reliability (not just “it works today”)
We can support commercial sites and FM teams who need a system that’s robust and serviceable.
How We Help Commercial & Hospitality Sites
Drainage field failure can be a major operational risk — particularly for hospitality.
We focus on:
- Minimising disruption where possible
- Clear reporting and practical recommendations
- Planned solutions (so you’re not forced into emergency decisions)
- Ongoing maintenance advice and PPM options
Planned Preventative Maintenance (PPM) to Protect Your Drainage Field
Drainage fields fail faster when upstream maintenance is inconsistent.
A PPM plan can help by:
- Keeping sludge levels controlled
- Maintaining treatment plant performance
- Reducing solids carryover into the field
- Identifying early warning signs before full failure
If you manage multiple sites, we can help standardise maintenance and reporting.
Why Choose ICE Drainage?
We support commercial and hospitality clients who need clear answers and reliable outcomes.
- London & Home Counties coverage
- Commercial-first approach (hospitality and FM)
- Competitive pricing and practical recommendations
- Safety-led engineers working to industry standards
- Credentials: Safe Contractor, SSSTS, Constructionline Gold
ICE Drainage is a specialist service expansion of ICE Cleaning, a leading sewage cleaning company in the UK.
Get a Quote for Drainage Field Installation & Repair
If you need drainage field installation, soakaway repair, or help with a suspected failing leach field, call 0203 870 1067 or email contactus@icedrainage.co.uk.
We cover London and the Home Counties and can advise on investigation, repair options, and planned replacement where required.