We pressure test and smoke test chimneys across London, Hertfordshire and Essex to find out whether your flue is sound. You get a pass or fail in writing, with the evidence.
Trusted by
Pressure tests, smoke tests and integrity checks, carried out to recognised standards by chimney specialists.
CCTV surveys and full condition reports so you know exactly what's happening inside your flue.
Find out more
Stoves, liners, cowls and complete chimney systems, installed safely and to standard, first time.
Find out more
From re-pointing and pots to full servicing long-term fixes designed to last, never quick patch-ups.
Find out more
Annual sweeping and inspection to keep your chimney clean, drawing well and safe to use.
Find out more
Clean, dust-free power sweeping that keeps your chimney drawing safely, with a certificate every visit.
Find out more
“Punctual, spotlessly clean and genuinely knowledgeable. They showed me photos of the whole flue and explained everything clearly. Wouldn’t use anyone else.”
“Punctual, spotlessly clean and genuinely knowledgeable. They showed me photos of the whole flue and explained everything clearly. Wouldn’t use anyone else.”
“Punctual, spotlessly clean and genuinely knowledgeable. They showed me photos of the whole flue and explained everything clearly. Wouldn’t use anyone else.”
“Punctual, spotlessly clean and genuinely knowledgeable. They showed me photos of the whole flue and explained everything clearly. Wouldn’t use anyone else.”
Common questions about chimney pressure and smoke testing.
Our friendly team is on hand to help with anything about your chimney, stove or flue.
No questions match your search.
A trained chimney engineer with the right sealing and gauge equipment. It is not a job that gets done properly with a smoke pellet and guesswork.
Often not. If the flue is in regular use, draws well and shows no staining, you can leave it. A test earns its money when you are relining, buying the property, sharing a stack with a neighbour, or the chimney has had a fire. We will tell you honestly if it is unnecessary.
A pressure test measures leakage as a number, which gives you a defensible pass or fail. A smoke test shows you where the leak is. They answer different questions, so we often run both: one to prove the flue fails, the other to find out why.
We tell you where it is leaking and what the options are. Usually that means lining the flue, occasionally repointing or rebuilding the stack above. You get the report either way, and you are free to take it to another contractor. The test result is yours, not a sales tool.
No. Sealing the flue is temporary, the smoke used is a cold non-staining type, and everything comes out as it went in. We sheet the hearth as a matter of course. Please expect a faint smell for an hour or two afterwards, which clears on its own.
Most tests take one to two hours per flue, and the report follows within. We can usually fit testing around a sale deadline if you tell us the date. Call and we will work backwards from it.
Tell us what you need and we’ll get straight back to you with honest advice and a no-obligation quote.
We aim to respond within one working day
By submitting you agree to be contacted about your enquiry. We never share your details.
