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Tank leak testing and plastic lining repair

Air, vacuum and hydrostatic tank testing to EN 13160. Repair of damaged above-ground and underground tanks by plastic lining — extending service life by 20+ years. Certificate for the Technical Inspection, since 2005.

Tank testing and repair
since 2005

Tank leak testing is a legal requirement for all above-ground and underground fuel tanks in Serbia. The inspectorate requires proof of tightness before commissioning, at technical inspections and after repair work. Our team carries out all the standard tests — air pressure, vacuum and hydrostatic — in line with EN 13160 and Serbian regulations.

With 20+ years of experience we work with every type of tank: ASTs and USTs at petrol stations, industrial tanks, heavy fuel oil tanks and heating installations. We issue certificates accepted for the Technical Inspection, the Water Protection Inspectorate and internal ISO procedures.

For tanks where the test reveals damage, we offer repair by plastic lining — we install a biodegradable plastic inner lining that extends the tank's service life by 20+ years, with no need for costly replacement. The process complies with EN regulations and is certified for fuel, water and industrial liquid tanks.

EN 13160standard
20+years of experience
Certificatefor the Technical Inspection
Tank leak testing and plastic lining repair — BioClean

Need tank testing or repair? Call us.

+381 63 249190

The full scope of
tank testing and repair

Every method of leak testing and repair of damaged tanks — with complete documentation.

Air pressure test

The standard test for underground tanks. Fast, non-invasive, with precise leak measurement.

Vacuum test

High sensitivity for detecting microscopic cracks. The standard for new installations and after repair.

Hydrostatic test

The most reliable test for large tanks and critical installations. Leak details are visible immediately.

Plastic lining of damaged tanks

An inner plastic lining extends service life by 20+ years. An alternative to costly tank replacement.

Certificate for the Technical Inspection

Documentation accepted for the Technical Inspection, the Water Protection Inspectorate and internal ISO procedures.

EN 13160 compliance

All tests and methods follow the European standard EN 13160 — accepted outside Serbia too.

What working
with us looks like

From the first call to the final documentation — a transparent, documented and compliant process.

01

Scheduled per contract

Notice 48h before the visit.

02

Arrival with a tanker

ADR vehicle for disposal of the contents.

03

Emptying and cleaning

Emptying + mechanical cleaning.

04

Treatment and checks

Biological treatment, flow check.

05

Documentation

Report, photos, proof of disposal.

Industries
we cover

Petrol stations

Required twice a year.

Car washes

Every 3-6 months.

Car repair shops

Depending on volume.

Car park complexes

Large garages, shopping centres.

Airports

Airport hangars and aprons.

6 reasons why clients
choose BioClean by EZO Green

20 years of experience, over 500 industrial facilities, a 100% eco-friendly approach.

Legal compliance

Monthly and annual contracts.

No missed services

Automatic reminders.

Full documentation

For the water inspectorate.

Fixed prices

No surprises.

Biological treatment

Extends the service interval.

Questions
we get most often

How often must an oil separator be cleaned?
The legal minimum is twice a year. For high-throughput sites (large petrol stations) — 3-4 times a year.
What if I don't clean the separator?
Fines from 50,000 RSD to 1,000,000 RSD for legal entities. In more serious cases — temporary closure.
How long does cleaning take?
A standard separator takes 1 to 2 hours, including emptying, cleaning and documentation.
Who issues the documentation?
We issue a report with everything the water inspectorate requires.
How much does it cost?
Per cleaning — a fixed price. An annual contract for 2 visits — significantly better value.

Your oil separator — when was it last serviced?

Free on-site assessment within 24h. Fixed prices with no hidden costs.

  • ✓ 20+ years of experience
  • ✓ Eco-friendly products
  • ✓ Inspection documentation
  • ✓ All of Serbia

Send enquiry

Free assessment!