Stove & Flue Liner Installations – What to Expect

The bread and butter of a stove fitter’s work is a wood-burning stove and flue liner installation. When fitting a stove into an existing masonry chimney, a standard installation typically includes:

• Supply and installation of a stainless steel flexible Class 1 flue liner, pulled down through the existing chimney stack

• Fitting of a chimney pot and rain cowl to protect the flue from rain and birds

• A galvanised steel or cement board closure plate to seal the chimney opening, with a length of vitreous enamel flue pipe connecting the stove to the flue liner (sometimes exiting from the rear of the stove)

• HETAS or Oftec registration certificate, a compliant carbon monoxide alarm, and a data plate (all legal requirements)

A correctly installed flue liner is essential for stove safety, efficiency, and long-term chimney performance.

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Typical Costs (Guide Prices)

The purpose of this page is to give you a realistic ball-park figure for a stove and flue liner installation, based on:

• A standard two-storey house

• A non-VAT registered HETAS installer

If a company is VAT registered, you may expect the overall cost to be higher than the figures below.

Stove & Flue Liner Installation

• Quality stove and flue liner installation: £1,300 – £1,400

• 5kW wood-burning stove: from approx. £700+

Approximate total:
£2,000 – £2,400 for a decent mid-range stove and a professionally installed, HETAS-registered flue liner system.

Optional Extras

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Flue Insulation

Flue insulation may be required for tall properties or exposed chimney stacks, helping to improve draw and reduce condensation.

• Additional cost: £300 – £700, depending on chimney height and size

• Insulation options include LECA backfill, vermiculite, or flue wrap insulation

Fireplace Opening & Hearth

Opening up an existing fireplace may include:

• Laying a new hearth

• Internal rendering/ ht cement boarding out 

• Tidying and plastering the chimney breast

Typical cost: around £800, plus the cost of the hearth itself (£0 – £200, depending on material).

Important Note on Pricing

Every fireplace and chimney installation is unique. Final costs can vary depending on:

• Chimney condition and size

• Amount of building work required

• Materials used

• Property type and location

All prices shown are guides only

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Twin Wall Flue Installations

If your property does not have a chimney, a prefabricated insulated twin wall flue system is required.

• An external twin wall flue installation on a standard two-storey house typically costs £1,800 – £2,200

• This does not include the cost of the stove or additional building work such as hearths or fire-proof boarding

Our Focus

Wood Stove Fitters Chimney Sweeps no longer carry out twin wall flue installations.

We now concentrate on:

• Chimney sweeping and associated maintenance

• Flue lining of existing masonry chimneys

Please see our Services page for full details.

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