I once watched a neighbour fill half a skip with plasterboard from a loft conversion, only to get a call from the skip company the next day saying it needed to be removed before they could collect. The skip sat on the drive for an extra week while he arranged alternative disposal, and the company charged a waiting fee.
Not knowing what can and cannot go in a skip is expensive. The rules are stricter than they were ten years ago and enforcement is real.
What is generally accepted in a skip
Most standard renovation and building waste is fine for a mixed-waste skip:
| Accepted materials | Notes |
|---|---|
| Timber and wood | Untreated and treated timber, floorboards, joists |
| Bricks and masonry | Clean brick, block, stonework, mortar |
| Concrete and hardcore | Watch the weight limit |
| Ceramic tiles | Floor and wall tiles, bath and shower tiles |
| General rubble | Mixed broken materials |
| Metal | Steel, copper pipe, radiators |
| Plastic | Pipes, guttering, window frames (some) |
| Cardboard and paper | Clean packaging |
| General household rubbish | Furniture, textiles, non-hazardous items |
| Garden waste | Green waste, soil (weight limits apply) |
What is prohibited or restricted
| Item | Status | Why |
|---|---|---|
| Plasterboard / gypsum | Restricted/banned (many companies) | Gypsum with biodegradable waste produces H2S gas |
| Asbestos (any form) | Prohibited | Hazardous - specialist removal and disposal required |
| Fridges, freezers, AC units | Prohibited | Contain refrigerant gases - WEEE regulations |
| TVs, monitors, computers | Prohibited | WEEE regulations |
| Car tyres | Prohibited at most companies | Specialist disposal required |
| Batteries (car and household) | Prohibited | Hazardous waste |
| Paint tins (liquid paint) | Prohibited | Hazardous if liquid; dried/empty tins usually OK |
| Gas cylinders (full or part-full) | Prohibited | Explosive/hazardous |
| Medical waste | Prohibited | Clinical waste regulations |
| Motor oil, chemicals, solvents | Prohibited | Hazardous liquid waste |
| Fluorescent tubes | Prohibited | Contain mercury |
Plasterboard: the big one
This catches a lot of people out. The Environment Agency tightened rules on plasterboard disposal in recent years because gypsum waste mixed with biodegradable waste in landfill produces hydrogen sulphide - a toxic gas.
The result is that many skip hire companies now will not accept plasterboard in a mixed-waste skip at all. Some offer a separate plasterboard-only skip. Some will accept a small amount (say, under 10%) mixed in.
Before booking your skip, specifically ask: "Do you accept plasterboard?"
If your renovation involves significant plasterboard removal - stud wall demolition, ceiling replacement, loft conversion strip-out - factor in separate plasterboard disposal as part of your plan. Options include:
- Dedicated plasterboard skip (some hire companies)
- Registered plasterboard recycling merchant
- Local household waste recycling centre (limited quantities)
Weight limits
Skips have a physical volume capacity but they also have a weight limit set by the road vehicle's legal axle loads. A mini skip full of concrete rubble can be overweight long before it is visually full.
Most companies apply an informal rule of thumb: keep heavy waste (concrete, rubble, soil) to no more than 50% of the skip volume. If you have a lot of heavy material, ask for a skip with a higher weight limit, or discuss the content honestly when booking.
Signs your skip is too heavy:
- The skip company mentions a weight limit when you book
- You have filled the bottom third with solid concrete or dense rubble
- The delivery lorry driver queries the weight on collection
Weight overages typically result in a surcharge on collection.
What to do with prohibited items
| Item | Disposal route |
|---|---|
| Plasterboard | Dedicated plasterboard skip, recycling merchant |
| Asbestos | Licensed asbestos contractor - do not DIY |
| WEEE (fridges, TVs) | Council collection, retailer take-back, registered recycler |
| Tyres | Tyre retailer, household waste centre |
| Paint | Dried-out tins in general bin; liquid to hazardous waste facility |
| Gas cylinders | Return to gas supplier or specialist |
My tips on skip filling
Declare everything to your skip hire company upfront. If your job includes things on the restricted list, ask before booking. It is much better to plan separate disposal routes than to have the skip refused on collection.
Do not sneak prohibited items in. Skip companies check loads at the sorting facility. Prohibited items found in a skip after collection can result in the waste being traced back to you and a fine. Your name and address are on the hire contract.
Check your local council website. Household waste recycling centres accept many items that skips will not - often for free. For a small renovation with a few awkward items alongside general rubbish, a council tip run plus a small skip is sometimes better than one large skip.
Use the Skip Size Calculator to find the right skip size for your project.