Chambers & Manhole Covers
Chambers and manhole covers are about access, compliance and load, not decoration. Get them wrong and you’re dealing with standing water, failed inspections or cracked covers six months down the line. Everything here is designed to integrate cleanly with underground drainage runs and give you reliable access for rodding and inspection once the job’s finished.
Discover Our Full Product Range:
| Product Type | Product | Size / Rating |
| Chamber Base | Plastic Base Chamber | 320mm |
| Chamber Riser | Plastic Riser Section | 320mm |
| Chamber Cover | Plastic Cover | 320mm |
| Chamber Base | Plastic Base Chamber | 470mm |
| Chamber Riser | Plastic Riser Section | 470mm |
| Chamber Cover | Plastic Cover | 470mm |
| Manhole Cover | Recessed Tray (Tile / Slab) | 600 × 450mm – 5 Tonne |
| Manhole Cover | Block Paviour Cover | 600 × 450 × 80mm – 5 Tonne |
| Manhole Cover | Square Block Paviour Cover | 450 × 450 × 80mm – 5 Tonne |
| Manhole Cover | Brick Paviour Cover | 600 × 600mm – 5 Tonne |
What is the typical site usage for manholes and covers?
- Inspection chambers are installed along underground drainage runs to allow rodding, jetting and visual checks.
- Riser sections are stacked to bring the chamber up to finished ground level.
- Plastic covers are used in non-trafficked areas such as gardens or patios.
- Recessed and block paving covers are used where appearance matters — allowing paving, slabs or bricks to sit flush over the cover.
- 5-tonne rated covers are suitable for domestic driveways and pedestrian areas.
This setup keeps drainage accessible without ruining the finished surface.
FAQ’s:
What size chamber do I need — 320mm or 470mm?
320mm chambers are common for straight runs and basic inspection points. 470mm chambers give more working room and are better where multiple connections meet or where rodding access is critical.
Can plastic chambers be cut down on site?
Yes. Risers are designed to be trimmed to suit finished ground levels, making it easier to match paving, slabs or tarmac accurately.
When should I use a recessed manhole cover instead of a standard cover?
Use recessed covers where the chamber sits in a visible area like a driveway, patio or path. They allow the finished surface to continue over the cover, keeping everything flush.
Are 5-tonne covers suitable for cars?
Yes. If you’ve got drawings or a description of the wall build-up, we can help you identify what’s typically used for that application.