Knock-through walls in Birmingham

What should you know before starting in Birmingham?

Internal alterations in Birmingham don't need planning permission unless the house is listed. Removing or altering a load-bearing wall does need Building Regulations approval, through Birmingham City Council's building control team or a registered building control approver, and a party wall may bring in the Party Wall etc. Act 1996.

Internal alterations to a listed building need listed building consent from Birmingham City Council.
A beam bearing on a wall shared with a neighbour needs party wall notice at least two months before work.
Removing a load-bearing wall needs a structural engineer's calculations and Building Regulations approval.

Postcode districts: B1, B7, B9, B10, B12, B18
Planning and building control: Birmingham City Council
From our West Bromwich base: About 6 miles to the centre

Which option fits your home?

Load-bearing wall with a steel beam

Where the wall supports floors, other walls or the roof, a structural engineer sizes a steel beam and the padstones that carry its ends. Temporary props hold everything up while the wall is removed and the beam goes in. The steel is then boxed in with plasterboard, usually fire-rated, and skimmed so it looks like part of the ceiling.

Kitchen into dining room

A very common knock-through in older houses, creating one sociable room for cooking and eating. It often goes alongside a new kitchen, so the steel position, lighting and sockets are planned with the kitchen layout in mind. Radiators and doors may move to make the most of the longer wall space.

What does your knock-through cost in Birmingham?

Expect to budget between £1,200 and £14,000 depending on size and specification in Birmingham. Opening up a 3.5 m load-bearing wall between kitchen and dining room in a semi: typically £4,500–£6,800.

Guide prices for knock-through walls
Option	Guide price	Good to know
Non-load-bearing wall removed	£1,200 – £2,800	No steel, mostly making good
Load-bearing wall with steel beam (up to about 4 m)	£3,800 – £7,500	The usual kitchen-diner or through-lounge
Wide span, chimney breast or multiple steels	£7,500 – £14,000	Bigger steels, more propping and making good

Guide ranges include VAT where it applies. A free survey turns this guide into a fixed, itemised price.

Knock-through walls in Birmingham: common questions

How do I know if a wall is load-bearing?

You can't be sure by looking, so we check on site. Clues include floor joists running across the wall rather than alongside it, a wall directly above on the next floor, or solid brick rather than hollow stud. Even a wall that seems light can carry a load in older houses. A structural engineer confirms it, and the calculations form part of the Building Regulations approval.

Do you cover the whole of Birmingham?

Yes — we cover Birmingham from our West Bromwich base, including Solihull, Sandwell and Walsall. Call 0800 088 6248 or send the form on this page to book a free survey.

How much does it cost to knock through a wall?

In the West Midlands, a knock-through typically costs £1,200–£14,000 including VAT where it applies. Removing a non-load-bearing partition is usually £1,200–£2,800. Opening a load-bearing wall of about 3.5 metres between a kitchen and dining room, with an engineer-designed steel, building control and re-plastering, is typically £4,500–£6,800. Decorating and new flooring across both rooms are usually extra.

Who approves knock-through walls in Birmingham?

Not for planning — internal work isn't development unless the house is listed. Building Regulations approval is needed for structural work such as removing a load-bearing wall, through Birmingham City Council or a registered building control approver.

Knock-through walls across Birmingham

We cover every town and district below:

Close to Birmingham

Other work we do in Birmingham

Use our guide-price tool for a knock-through in Birmingham, then get a fixed price for the agreed specification after the survey.