How Long Does a Chimney Sweep Take?

Where the time goes on a typical visit

The sweeping itself is the shortest part. Sheeting the hearth and surroundings, sealing the opening, setting up extraction and then, at the end, checking the deposits, running a smoke draw test and leaving the room as we found it are what fill the hour.

That preparation is not padding. It is the difference between a clean job and soot on a carpet, and it is why an appointment that looks quick from outside takes the time it does.

• Set up: sheeting, sealing the appliance opening, extraction — around fifteen minutes
• Sweeping the flue with the correct heads for its construction — fifteen to twenty-five minutes
• Inspection of deposits, appliance, baffle, rope seals and terminal
• Draw test to confirm the flue clears properly after sweeping
• Clearing away, then issuing the certificate

What makes an appointment take longer

Condition is the main variable. A flue swept every year gives up its soot quickly. A flue that has not been touched for five seasons, or that has been fed damp wood, holds hardened tar that has to be worked at rather than brushed off. Heavy glazed deposits are a different job again and may need a separate specialist visit rather than being forced into the same hour.

Access is the second. An inglenook with a wide gather, a stove with a baffle that has to come out and go back, a flue with several bends, a roof terminal needing checking from above — each adds time. So does anything unexpected: a nest, fallen mortar, a damaged liner found on camera.

• Years since the last sweep, and what has been burnt in the meantime
• Tar or glazed creosote rather than dry soot
• Removing and refitting a stove baffle and throat plate
• Multiple bends, an offset gather or an unlined masonry flue
• Unexpected finds — nests, debris, liner damage

Multiple flues in one property

Second and subsequent flues in the same visit are quicker than the first, because the set-up, the travel and the paperwork are already done. If you have a stove downstairs and an open fire in a bedroom, having both swept on one appointment is more efficient than two visits.

It is worth telling us up front how many flues you want done. It changes the slot we book rather than the price of a surprise, and it means the day runs to time for you and for the customers after you.

How to make the visit run to time

A few minutes of preparation genuinely shortens the appointment. Let the fire go completely out well in advance — a flue still warm from last night's burn cannot be swept safely, and that is the single most common cause of a wasted visit.

Clear the hearth and the space in front of it. Move ornaments, rugs, screens, log baskets and anything fragile out of the room. If the stove has a removable baffle, having the manual to hand helps if it is an unfamiliar model.

• No fire for at least twenty-four hours before the appointment
• Hearth and the area in front of it cleared
• Rugs, ornaments and log baskets moved out of the room
• Parking reasonably close if the property is on a narrow street
• Tell us in advance about extra flues, a stove baffle, or an unusual set-up

When a sweep turns into a survey

Occasionally something found during a sweep warrants a proper look with a camera — a suspected crack, a liner that feels wrong on the rods, a deposit pattern that suggests condensation. A CCTV survey is a separate piece of work and adds meaningful time.

We will not do that quietly and add it to the bill. You will be told what has been found, what a survey would establish, and what it costs before anything else happens.

Frequently asked questions