Chimney Breast Removal Stevenage
Chimney breast removal with steel beam support in Stevenage, the beam sized by the engineer we appoint and the work signed off by building control.
- Rated 4.9 from 31 reviews on MyBuilder
- Guide from £2,200 (London-derived)
- Free site survey, itemised quote
Removing a chimney breast means taking out masonry that carries its own weight, and the stack above it if that stack is staying. The remaining brickwork has to be supported, usually on a steel beam designed by an engineer, with gallows brackets only where the engineer and building control accept them. In Stevenage the age of the property and its conservation area status both shape the answer.
For Stevenage, on London-derived ranges removing a breast on one floor typically costs £2,200 to £3,250 on a steel beam, and £3,000 to £5,000 across two floors; Hertfordshire work generally runs below that. GS Renovation Ltd, a building contractor based in Potters Bar, does the work in Stevenage.
Price guide
| Work | Indicative range |
|---|---|
| One floor, steel beam (the usual route) | £2,200 to £3,250 |
| One floor, gallows brackets where the engineer and building control accept them | £1,500 to £2,500 |
| Two floors | £3,000 to £5,000 |
Indicative London ranges (MyBuilder and Checkatrade, 2026), not a quotation. Hertfordshire work generally runs below the London figures; your price follows a site visit. Prices checked September 2026. Full breakdown: Chimney Breast Removal Guide.
How the job runs
- Free site survey at your Stevenage address: which floors the breast runs through, a shared stack, any live flue.
- The engineer we appoint designs the support, and the work is registered with Hertfordshire Building Control or an approved inspector. On a shared wall you serve the party wall notice as building owner; we supply the drawings.
- The floor above is propped and the breast comes down in courses from the top; what remains sits on the support the engineer specified.
- Building control inspects the support before it is covered. We make good, and the completion certificate follows.

Stevenage has little pre war housing
Only 1,160 Stevenage dwellings, 3.0 per cent of the borough's council tax stock, were built before 1940, where the figure across England and Wales is 35.2 per cent.
That changes what a chimney job looks like here. Flues, hearths and earlier alterations differ between a post war house and a pre war one, and what is behind the plaster is confirmed at survey rather than assumed. The quotation follows the survey, not the other way round.
Housing in Stevenage
For Stevenage the Council Tax list gives about 38,430 homes; by type 24% flats and 76% houses, by age 96% post-war, 1% interwar and 2% older than 1919. A terrace breast in Stevenage usually sits on the party wall, so removal needs a notice, and 52% of homes here are terraced.
Six of the seven conservation area plans ask for stacks to be kept
Six of Stevenage's seven Conservation Area Management Plans state that chimney stacks can contribute greatly to the local character and should be retained and repaired. The exception is the Town Square plan.
Seven conservation areas cover parts of the town: Broadwater, Old Town High Street, Orchard Road, Shephall Green, St Nicholas and Rectory Lane, Symonds Green, and Town Square. If your property sits in one of them, taking the breast out while retaining the stack is the route that keeps the roofline as it is, and that puts the support detail at the centre of the job.
The Old Town is a different structure altogether
Stevenage Old Town High Street retains timber framed buildings of the 16th century or earlier, among them 2 Letchmore Road, 9a Middle Row, 84a and 131 High Street, and a 16th century hall house at 94 to 98 High Street.
The Great Fire of Stevenage on 10 July 1807 destroyed 42 properties in Middle Row, and the buildings lost were rebuilt with brick facades and tiled roofs. The brick refronting along the High Street therefore follows the fire rather than predating it. Work on a building of that age is historic masonry and timber repair, and listed building consent applies where the building is listed.
Who inspects the support you leave behind
Hertfordshire Building Control Limited does. Stevenage Borough Council does not run its own building control service, and owns that company jointly with seven other Hertfordshire local authorities. Inspection bookings are taken on 01438 879990 and by WhatsApp on 07483 034482.
The support to a retained stack is inspected before it is covered up. We make the application and book that visit, so the job closes with a record of sign off rather than an open file.
- Ground floor removal with the upper stack fully supported
- Bedroom breast removal to reclaim usable floor space
- Full chimney stack removal and roof making good
VOA Council Tax stock of properties, March 2025, for all 12 statistical areas in Stevenage. Counts rounded by the VOA.
Trusted Chimney Breast Removal in Stevenage
Chimney work in Stevenage runs straight into conservation area guidance, because six of the seven management plans ask for stacks to be retained and repaired. We plan the support to the retained stack first and the finishes second, and we build to a structural engineer's calculations where a beam is the answer. Building control applications and inspections are coordinated for you. The company is fully insured, quotations are free and without obligation, and you deal with one point of contact.
Reviewed jobs near Stevenage
1 MyBuilder review from Stevenage, with each customer's own job title:
- Kitchen worktops, Stevenage, 24 Jun 2021 (5 out of 5)
Read all 31 on our reviews page.
We loved working with George and Ibrahim and would highly recommend them. They have done splendid job on our new kitchen refurb which including new…
Very friendly and I am very pleased with the work he has done, also very clean worker and enthusiastic about his work. Can not fault this company!!!!…
Punctual, worked hard, and did exactly what he was asked and what he said he would do. Overall, a very high quality job. Will use again.
FAQ
Frequently Asked Questions about Chimney Breast Removal Stevenage
How much should a Stevenage homeowner set aside for chimney breast removal?
Set aside money for chimney breast removal in Stevenage under three headings, structure, trades and approvals, within £2,200 to £3,250 for one floor on a beam (London-derived), and you will not be caught out. That is how the SG1 quotation is laid out, so each element can be checked or deferred. The order also affects cash flow: the steel under the stack is inspected before it is boxed in.
Is newer housing north of Symonds Green inside the conservation area?
Possibly not. Symonds Green Conservation Area was designated in June 1977, and its boundary was amended in 2007 to remove an area of new housing to the north. Shephall Green was designated in October 1973 and extended in December 2007, so boundaries in the town have moved in both directions. Check the current boundary for the address before assuming either way, because designation decides whether external changes to a stack need consent.
Who owns the stack on a party wall in a Stevenage terrace?
That is established from the flues rather than from the elevation. Terraced houses account for 19,720 dwellings in the borough, 51.3 per cent of the stock, and Broadwater's terraces run in groups of six to ten houses. A stack on a party wall can serve flues from both properties, and the breast on one side may support masonry that continues over the boundary. The survey opens up enough to confirm which flues serve which house before anything is cut.
Does a chimney breast in an Old Town High Street property need listed building consent?
It does if the building is listed, and internal work counts. There are almost 90 listed buildings within the Old Town High Street Conservation Area, and the central High Street character zone alone contains 48 of the area's 87. That conservation area was designated in March 1969 and extended in September 1979. Establish the listing position for the address first, because consent for a listed building runs separately from the building regulations application.
Does the ground under the house matter when the stack is left in place?
It matters where the retained stack's weight moves onto new bearings. A beam supporting a stack concentrates that load into two points and down through whatever lies below. Ground under the town varies: the Broadwater area at Marymead sits on mapped Alluvium of clay, silt, sand and gravel, while at Chells no superficial deposit is mapped at all, so chalk lies directly beneath the topsoil. The engineer checks the existing footing before specifying the support.
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Chimney Breast Removal Near Stevenage
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