How to Dispose of Old Antifreeze Safely in Scotland

Ethylene glycol — the active ingredient in most car antifreeze — is sweet-tasting, highly toxic and a leading cause of accidental pet poisoning in Scotland. Improper disposal kills cats and contaminates groundwater. Here's how to dispose of it legally in Scotland in 2026.

Why it's hazardous

• Ethylene glycol is sweet-tasting — animals (cats especially) drink it readily
• A teaspoon can kill a cat; a tablespoon can kill a small dog
• It causes acute kidney failure within 24–72 hours of ingestion
• It's also a groundwater pollutant — contaminates aquifers and watercourses
• Newer "longer-life" antifreezes use propylene glycol (much less toxic) but old stocks of ethylene glycol are still common in Scottish garages

Where to take old antifreeze

Every Scottish HWRC (Household Waste Recycling Centre) has a hazardous fluid bay that accepts antifreeze. It's the same bay that takes engine oil and brake fluid:

• Glasgow — Polmadie, Easter Queenslie, Shieldhall, Dawsholm
• Edinburgh — Sighthill, Seafield, Bankhead
• Falkirk — Roughmute, Kinneil Kerse
• Lanarkshire — multiple sites at North and South council level

Bring it in a sealed container, lid on, label visible. Maximum 25 litres per visit at most sites.

Garages take it from customers

Many Scottish independent garages and Halfords stores will accept up to 5 litres of customer antifreeze when you buy replacement coolant from them. Phone first.

What you cannot do

• Pour it down a drain — runs into the storm system, into watercourses, kills aquatic life
• Pour it onto soil or into a soakaway — contaminates groundwater for years
• Mix with engine oil — both go to different recycling streams
• Put it in your wheelie bin or skip — illegal hazardous waste
• Throw it in a watercourse — criminal offence under the Water Environment (Controlled Activities) (Scotland) Regulations

Pet safety

If you spill antifreeze on the driveway:

1. Soak up immediately with sand, kitten litter or absorbent granules
2. Bag the contaminated absorbent and treat as hazardous waste (HWRC)
3. Wash the spill area with soapy water — but don't flush it down a drain
4. If a pet has already had access, get to a vet immediately. Treatment within hours can save them; after 24 hours it's rarely possible
5. Visit the local vet emergency line — Glasgow has 24/7 emergency vets at Vets Now

Old containers

Empty antifreeze containers go in HWRC plastic recycling once rinsed (the rinsate goes in hazardous waste, not down a drain). For unrinsed containers, treat as hazardous waste.

Garage clearance scenarios

A typical Scottish garage clearance turns up 1–3 part-empty antifreeze containers from previous decades. Our team segregates these for hazardous waste disposal as part of the garage clearance. We don't handle bulk hazardous (more than 25 litres) — that needs a licensed hazardous waste contractor.

Need Help Disposing of It?

If you'd rather we collected and legally disposed of it for you, send us a photo on WhatsApp at 07951 488152 and we'll come back with a fixed quote inside 60 minutes. SEPA registered (WCR/R/3011855), fully insured. From £30 across Glasgow, Edinburgh and the rest of Scotland.