Get quotes to fix a chimney

HaMuch is Excellent
By Emily Rivers
Last updated 26th September 2022

A lot of UK homes have non-working chimneys. In older properties, the chimney breast in the house might have been removed to create more room space, or the fireplace has been converted into a TV area, loveseat, library… Although fires are no longer lit in the fireplace, the chimney will still be a characteristic of the original roof.

If not properly maintained, a leaking chimney can allow water to seep into the home damaging the loft space, ceiling and the chimney itself. If the chimney leak has been left unattended for a while, the leaks could damage the roof beams, joists and wooden structure through wood rot.

What is the most common cause of chimney deterioration?

Even with on-going maintenance to a chimney, a chimney being exposed to all weather conditions from harsh UV rays to snow and hail in the UK, may only last 30-50 years. The biggest cause for deterioration is the bricks and mortar joints. Weather will affect the chimney from all directions, so the decline of a chimney's strength and water resistance is inevitable with the weather conditions being the number one cause to slowly corrode a chimney.

Any falling debris, either from a tall tree in close proximity to the roof, a freak weather storm flying debris around, or debris falling from the crumbling of the chimney flue could cause damage to the chimney.

Cost to repair a chimney

Can a brick chimney be fixed?

If the chimney has crumbling bricks or a damaged cracked brick, this is an easy repair for a roofer. They will be able to slide out the damaged bricks and replace them with new bric, re-doing the mortar, sealing in the new bricks but they may feel it best to repoint the entire chimney to ensure all the brickwork is protected from rain and visually pleasing. Rather than having a section of new mortar that looks vastly different from the rest of the chimney.

Another fix on a bricked chimney might be to remove the crumbing cement chimney crown and recement the chimney crown. This will leave the chimney weather protected.

The flashing around the chimney, at the base of the brickwork joining the shingles,  might be letting water through, this would need the old flashing to be removed and new flashing laid around the chimney.

How much will it cost to repair a chimney?

The cost of a chimney repair will greatly depend on access to the chimney, how steep the pitch of the roof is, whether the roofer will have access with or without the need for scaffolding and how big a repair job is needed on the chimney. (The last thing a roofer needs is to fall down the chimney!)

Repointing a chimney will involve two days of labour whereas repairing flashing might only be a couple of hours to a day depending on the amount of flashing or leadwork needing repairing. Re-cementing a crown on the chimney could be done in a day. Of course if the repair work on the chimney is a big job, involving all key elements of the chimney, this might involve an entire week of roofing work.

If scaffolding is needed, this will eat into labour time for the roofer setting up their access on to the roof to reach the chimney safely.

Cost to repair a chimney

Per

Average total labour cost

Chimney inspection to determine source of leak

Per hour

£120

Recaulking around flashing to stop chimney leak

Per hour

£90

Repointing a chimney stack

Per day

£250

Renewing all the chimney flashing

Per day

£180

Recementing chimney crown

Per day

£180

 

How do I know where my chimney leak is coming from?

An experienced roofer will be able to inspect the chimney and from a visual inspection, work out the area causing the chimney leak.

The most vulnerable chimney area is the brick and mortar joints which over time will be damaged by constant weather changes. Over the years, the mortar joints will crack, allowing water to seep in. If the roofer notes that the mortar joints are still in good condition, this will lead the roofer to investigate the flashing around the chimney.

If the flashing is cracked, brittle or showing signs of sealant missing or eroded, this will be the culprit for water ingress. If the flashing or leadwork appears in good condition, the next part of the chimney to inspect is the chimney crown.

The crown, also known as a chase cover, cap or damper, protects the chimney from rain, snow and hail entering. Without a chimney cover, birds might try to nest in the chimney, further damaging the chimney.

If the chimney is old, it may be a case of all three areas deteriorating allowing water or moisture to seep in and leak, meaning the roofer will need to repair the entire chimney from repointing brickwork, to recementing a crown and redoing the flashing around the chimney.

When to repoint a chimney?

There is no set time frame on when a chimney might need repoint. Chimney repointing is repairing the cement mortar between the bricks in a chimney stack. Repointing means scraping out the old mortar, and filling the gaps between the bricks with new fresh mortar, which not only gives the chimney a better appearance but more importantly protects the chimney and keeps it waterproof. 

The brickwork on the chimney can withstand the elements for a hundred years or more, but the mortar joints are more susceptible to erosion from the elements. A chimney will need repointing when showing visible signs of deterioration around the mortar.

This might not be noticed from the ground, but instead you might be aware of pieces of mortar or brick that have fallen to the ground from the chimney or worse, noticing some water damage inside your home or loft space. If you have any cause for concern, call in a professional roofer ASAP to inspect the condition of your chimney and while doing that they can inspect the rest of your roof as well.


Estimates for common roofer jobs;

JobEstimate
Cost to build a new roof £9000
Cost to replace roof ridge tiles £180
Cost to replace a gutter £241
Cost to replace flashing and leadwork £625
Cost to replace fascia and soffits £301
Cost to repair a chimney £200
Cost to repair a leaky roof £100
Cost to replace a flat roof £700
Chimney flue installation £400
Upgrading old tiles or Cotswolds stone roofs £2500 or a 2bed house

Rates for other trades

Repair a chimney cost in the UK
Repair a chimney cost in the UK (excluding VAT or callout charges)
Location in UKRepair a chimney cost
Repair a chimney near Amber Valley£156
Repair a chimney near Arun£168
Repair a chimney near Ashfield£162
Repair a chimney near Aylesbury Vale£192
Repair a chimney near Barnsley£168
Repair a chimney near Basildon£216
Repair a chimney near Basingstoke & Deane£204
Repair a chimney near Bassetlaw£162
Repair a chimney near Bath & North East Somerset£162
Repair a chimney near Bedford£198
Repair a chimney near Birmingham£156
Repair a chimney near Blackburn£156
Repair a chimney near Blackpool£156
Repair a chimney near Bolton£162
Repair a chimney near Bournemouth£204
Repair a chimney near Bracknell Forest£210
Repair a chimney near Bradford£180
Repair a chimney near Braintree£198
Repair a chimney near Breckland£132
Repair a chimney near Bridgend£168
Repair a chimney near Brighton£180
Repair a chimney near Bristol£162
Repair a chimney near Broadland£132
Repair a chimney near Broxtowe£162
Repair a chimney near Bury£162
Repair a chimney near Caerphilly£168
Repair a chimney near Calderdale£192
Repair a chimney near Cambridge£192
Repair a chimney near Canterbury£156
Repair a chimney near Cardiff£162
Repair a chimney near Carmarthenshire£138
Repair a chimney near Charnwood£150
Repair a chimney near Chelmsford£210
Repair a chimney near Cheltenham£156
Repair a chimney near Cherwell£174
Repair a chimney near Chester£168
Repair a chimney near Colchester£192
Repair a chimney near Conway£192
Repair a chimney near Coventry£138
Repair a chimney near Crewe & Nantwich£162
Repair a chimney near Dacorum£222
Repair a chimney near Derby£156
Repair a chimney near Doncaster£174
Repair a chimney near Dover£150
Repair a chimney near Dudley£156
Repair a chimney near Dumfries & Galloway£132
Repair a chimney near Dundee£210
Repair a chimney near East Ayrshire£186
Repair a chimney near East Devon£138
Repair a chimney near East Dunbartonshire£180
Repair a chimney near East Hampshire£198
Repair a chimney near East Hertfordshire£222
Repair a chimney near East Riding£168
Repair a chimney near Eastleigh£174
Repair a chimney near Edinburgh£192
Repair a chimney near Elmbridge£222
Repair a chimney near Epping Forest£228
Repair a chimney near Erewash£162
Repair a chimney near Exeter£138
Repair a chimney near Falkirk£180
Repair a chimney near Fife£198
Repair a chimney near Flintshire£174
Repair a chimney near Gateshead£180
Repair a chimney near Gedling£162
Repair a chimney near Glasgow£180
Repair a chimney near Gloucester£162
Repair a chimney near Guildford£210
Repair a chimney near Gwynedd£126
Repair a chimney near Halton£168
Repair a chimney near Harrogate£150
Repair a chimney near Havant & Waterloo£174
Repair a chimney near Horsham£204
Repair a chimney near Huntingdonshire£240
Repair a chimney near Ipswich£186
Repair a chimney near Isle of Wight£174
Repair a chimney near Kings Lynn & West Norfolk£144
Repair a chimney near Kingston-upon-Hull£144
Repair a chimney near Kirklees£186
Repair a chimney near Knowsley£168
Repair a chimney near Lancaster£144
Repair a chimney near Leeds£156
Repair a chimney near Leicester£138
Repair a chimney near Liverpool£168
Repair a chimney near London£228
Repair a chimney near Luton£222
Repair a chimney near Macclesfield£156
Repair a chimney near Maidstone£192
Repair a chimney near Manchester£162
Repair a chimney near Mid Bedfordshire£210
Repair a chimney near Mid Sussex£198
Repair a chimney near Middlesbrough£216
Repair a chimney near Milton Keynes£192
Repair a chimney near Neath Port Talbot£168
Repair a chimney near New Forest£186
Repair a chimney near Newbury£204
Repair a chimney near Newcastle-under-Lyme£186
Repair a chimney near Newcastle-upon-Tyne£180
Repair a chimney near Newport£168
Repair a chimney near North Ayrshire£186
Repair a chimney near North East Lincolnshire£144
Repair a chimney near North Hertfordshire£222
Repair a chimney near North Lanarkshire£180
Repair a chimney near North Lincolnshire£150
Repair a chimney near North Somerset£168
Repair a chimney near North Tyneside£180
Repair a chimney near North Wiltshire£168
Repair a chimney near Northampton£180
Repair a chimney near Norwich£132
Repair a chimney near Nottingham£162
Repair a chimney near Nuneaton & Bedworth£138
Repair a chimney near Oldham£186
Repair a chimney near Oxford£180
Repair a chimney near Perth & Kinross£186
Repair a chimney near Peterborough£258
Repair a chimney near Plymouth£156
Repair a chimney near Poole£204
Repair a chimney near Portsmouth£174
Repair a chimney near Powys£150
Repair a chimney near Preston£156
Repair a chimney near Reading£204
Repair a chimney near Redcar & Cleveland£222
Repair a chimney near Reigate & Banstead£222
Repair a chimney near Renfrewshire£180
Repair a chimney near Rhondda, Cynon, Taff£168
Repair a chimney near Rochdale£186
Repair a chimney near Rotherham£162
Repair a chimney near Salford£162
Repair a chimney near Salisbury£186
Repair a chimney near Sandwell£156
Repair a chimney near Scarborough£132
Repair a chimney near Sefton£168
Repair a chimney near Sevenoaks£216
Repair a chimney near Sheffield£162
Repair a chimney near Slough£222
Repair a chimney near Solihull£144
Repair a chimney near South Ayrshire£186
Repair a chimney near South Bedfordshire£198
Repair a chimney near South Cambridgeshire£192
Repair a chimney near South Gloucestershire£162
Repair a chimney near South Kesteven£168
Repair a chimney near South Lanarkshire£168
Repair a chimney near South Oxfordshire£198
Repair a chimney near South Somerset£150
Repair a chimney near South Tyneside£180
Repair a chimney near Southampton£174
Repair a chimney near Southend-on-Sea£204
Repair a chimney near St Albans£222
Repair a chimney near St Helens£162
Repair a chimney near Stafford£174
Repair a chimney near Stockport£162
Repair a chimney near Stockton-on-Tees£216
Repair a chimney near Stoke-on-Trent£192
Repair a chimney near Stratford-on-Avon£138
Repair a chimney near Stroud£162
Repair a chimney near Suffolk Coastal£186
Repair a chimney near Sunderland£186
Repair a chimney near Swale£180
Repair a chimney near Swansea£162
Repair a chimney near Tameside£162
Repair a chimney near Teignbridge£144
Repair a chimney near Tendring£192
Repair a chimney near Test Valley£180
Repair a chimney near Thamesdown£162
Repair a chimney near Thanet£144
Repair a chimney near The Wrekin£150
Repair a chimney near Thurrock£216
Repair a chimney near Torbay£144
Repair a chimney near Trafford£162
Repair a chimney near Vale of Glamorgan£168
Repair a chimney near Vale of White Horse£168
Repair a chimney near Vale Royal£174
Repair a chimney near Wakefield£186
Repair a chimney near Walsall£156
Repair a chimney near Warrington£162
Repair a chimney near Warwick£138
Repair a chimney near Waverley£210
Repair a chimney near Wealden£180
Repair a chimney near West Lancashire£162
Repair a chimney near West Lothian£192
Repair a chimney near West Wiltshire£168
Repair a chimney near Wigan£162
Repair a chimney near Windsor & Maidenhead£216
Repair a chimney near Wirral£168
Repair a chimney near Wokingham£210
Repair a chimney near Wolverhampton£156
Repair a chimney near Wrexham Maelor£174
Repair a chimney near Wychavon£144
Repair a chimney near Wycombe£210
Repair a chimney near York£150