Whether you have a working open fire, a wood-burning stove, or a chimney that needs repair, chimney and fireplace work ranges from simple maintenance to significant structural repairs. Here's what to know.
Chimney Sweeping
If you use a solid fuel fire or stove, your chimney should be swept at least once a year — twice if you burn wood regularly. Sweeping removes soot and creosote buildup that can cause chimney fires and reduces the risk of carbon monoxide entering the room.
- Typical cost: £50–£90 per sweep
- Duration: 45–90 minutes
- Always use a registered sweep — look for membership in a body like the National Association of Chimney Sweeps (NACS) or the Guild of Master Chimney Sweeps
Common Chimney Repairs
| Repair | Typical Cost |
|---|---|
| Chimney pot replacement | £150–£350 |
| Chimney cowl / cap fitting | £80–£200 |
| Lead flashing repair | £200–£500 |
| Repointing chimney stack | £400–£900 |
| Chimney breast removal (downstairs only) | £1,500–£3,000 |
| Full chimney stack removal | £2,500–£5,000+ |
Wood-Burning Stove Installation
Installing a wood-burning stove is one of the most popular fireplace upgrades. Costs depend on whether you have a suitable existing chimney or need a new twin-wall flue system:
- Stove installation with existing chimney: £1,500–£3,000 (incl. stove, liner, and labour)
- Stove installation with new flue (no chimney): £2,500–£4,500
- Stove alone: £500–£2,000 depending on output and brand
Important Regulations
- All solid fuel installations must comply with Document J of the Building Regulations
- In smoke control areas, you must use a DEFRA-exempt stove and approved fuel
- A HETAS certificate should be issued on completion by a registered installer — you'll need this for insurance and if you sell the property
Signs Your Chimney Needs Attention
- Damp patches on chimney breast walls (often a flashing or flue liner issue)
- Cracked or leaning chimney pots visible from the ground
- Debris or soot falling into the fireplace
- Smoke not drawing properly (could be a blockage or ventilation issue)
- Cracked pointing on the chimney stack (visible from ground level with binoculars)
Always Use Qualified Specialists
Chimney work involves fire safety and carbon monoxide risk — always use a registered sweep or a HETAS-certified installer, and never attempt structural chimney work without checking building control requirements.