Tar and creosote removal

Dorset Chimney Sweep is one of the few chimney sweep specialists in Dorset to offer a complete tar and creosote removal service (if not the only trained specialist!).

General chimney sweeping removes soot build-up, but tar and creosote, caused by moisture and smoke when the chimney cools, is tricky to remove.

Soot and creosote build-up in solid fuel chimneys is a serious fire hazard if not properly removed. All chimneys should be inspected and/or cleaned at least annually by a suitably qualified, professional chimney sweep. This ensures it is kept clear and in good working condition, preventing harmful emissions and fire hazards. 

A chimney inspection will identify if you have a build up of tar or creosote, or if its particularly severe, it will affect the use of your appliance and you’ll be able to smell it. More info on creosote here.

The solution…

We use an industry-leading chemical called Cre-Away Pro. Here’s the technical bit…

Cre-Away Pro is a four-component powder used to safely and effectively remove creosote.It works through a reactive agent which neutralizes the slightly acidic creosote, making it less corrosive to metal components and less flammable.

A dehydrator absorbs the oils and moisture contained in some forms of creosote and a combustion inhibitor helps reduce the risk of chimney fires.

Finally, a magnesium catalyst helps break down third degree creosote when the flue is heated through normal use.

We now provide this service which includes an initial chimney inspection, chemical application, a thorough sweep followed by a CCTV inspection to confirm the effectiveness of the process.

How we remove creosote

1.  We identify the build-up of creosote by chimney inspection.

2. The flue is heated using a gas blow heater for approx 20-30 minutes.

3. The chemical is applied using a compressor and nozzle which blasts it up the chimney.

4. The chemical is left to work – the customer is asked to continue to heat the flue by normal use of the appliance for up to 14 days, bringing the flue up to temperature, which activates the chemical reaction.

5. We then sweep the flue to remove the creosote, followed by a CCTV inspection to ensure a successful removal.*

* Please note – In heavy build-ups, more than one application may be applicable

This service costs from £285 including inspection, application, sweep, CCTV and certification.

For more information please contact us.