As someone who has worked in chimney repair and maintenance across Greater London for years, I’ve seen my fair share of chimney issues—some minor, others quite severe. One thing that consistently stands out to me is how many new homeowners are completely unaware of the safety risks posed by a poorly maintained chimney. If you’ve recently moved into a home with a chimney, this post is for you.
Here, I’ll share some crucial chimney safety tips that I always recommend to clients—based on both industry standards and personal experience.
1. Get a Chimney Inspection Before You Use It
One of the first things I tell new homeowners is: do not light a fire in your fireplace or stove until you’ve had a full inspection. Just because the chimney looks fine on the outside doesn’t mean it’s safe to use. Hidden cracks, blockages, or creosote build-up can be dangerous. A professional inspection ensures everything is structurally sound and safe to operate.
2. Understand the Type of Chimney You Have
Not all chimneys are created equal. Some homes have traditional masonry chimneys, while others may have prefabricated or metal flue systems. The maintenance needs and safety checks vary slightly depending on the type. A professional can help you identify what you have and explain what that means for your ongoing care.
3. Book an Annual Chimney Sweep
Even if you don’t use your fireplace that often, it’s important to have your chimney swept at least once a year. I’ve been called out to jobs where people waited years, only to have dangerous amounts of creosote or bird nests blocking their flue. An annual sweep clears out soot, debris, and other blockages that can cause chimney fires or carbon monoxide build-up.
4. Install a Chimney Cap
If your chimney doesn’t already have a cap, get one installed. A chimney cap keeps out rain, birds, squirrels, and other debris. It also prevents downdrafts which can send smoke and fumes back into your home. I’ve seen countless repairs caused by water damage and nesting animals—many of which could’ve been prevented with a simple cap.
5. Keep an Eye Out for Warning Signs
There are several tell-tale signs that your chimney might be developing a problem. These include:
- Smoke backing up into the room
- A strong, unpleasant odour
- Bits of brick or mortar falling into the fireplace
- White staining (efflorescence) on the exterior brickwork
- Dripping noises or visible dampness inside the fireplace
If you notice any of these, it’s time to call in a professional.
6. Be Aware of Carbon Monoxide Risks
Carbon monoxide is an odourless, colourless gas that can be deadly if it builds up in your home. Poorly vented chimneys are a major source of carbon monoxide leaks. Make sure you have a carbon monoxide detector installed near your fireplace or stove—and test it regularly. I always stress this point to new homeowners, especially those with older chimneys.
7. Use the Right Fuel
What you burn matters. Seasoned hardwoods like oak or ash burn hotter and cleaner than softwoods or green wood, which can create more creosote. Never burn painted or treated wood, rubbish, or coal in a wood-burning stove unless it’s designed for it. I often find that chimney problems start with improper fuel usage.
8. Mind Your Fireplace or Stove Operation
Make sure you understand how to operate your fireplace or stove properly. This includes opening the damper before lighting a fire, using a fireguard or screen, and never leaving a fire unattended. It sounds obvious, but you’d be surprised how many people forget these basics when they’re excited to light their first fire in a new home.
9. Waterproof Your Chimney
London weather can be brutal on brickwork. If water seeps into your chimney and freezes, it can cause cracking and deterioration over time. I often recommend applying a breathable waterproof sealant to prevent water ingress, especially if your chimney is exposed to the elements.
10. Know When to Call a Professional
Some jobs are best left to the pros. If you suspect a blockage, notice any structural damage, or have questions about your flue or liner, give us a call. At The Chimney Experts, we’re always happy to help and can offer peace of mind that everything’s safe and sound.
Owning a home with a chimney can be a wonderful thing—it adds charm, warmth, and even value to your property. But it also comes with responsibilities. I hope these tips help you stay safe and confident as you settle into your new home.
If you have any questions or need a professional inspection, don’t hesitate to reach out. We’ve been serving Greater London for years and have the experience to keep your chimney in top shape.
Stay warm and safe,
The Chimney Experts