How much does it cost to knock down an internal wall?
Removing a wall costs very different amounts depending on whether it's load-bearing. Get an indicative figure below.
Before you remove a wall
- 1Is it load-bearing?
The key question. If it carries floor joists or a wall above, it's load-bearing and needs an engineer and a beam — never assume it's just a partition.
- 2Check for services
Walls often carry cables, pipes and sometimes a soil vent — these need rerouting before demolition.
- 3Make good
After removal, the floor, walls and ceiling where the wall stood all need patching and redecorating — part of the real cost.
Opening up a poky floor plan is one of the highest-impact layout changes on a flip. The cost — and the paperwork — hinges entirely on whether the wall is load-bearing, so answer that question first, before you price anything else.
Internal wall removal costs (indicative)
| Wall type | What's involved | Indicative cost |
|---|---|---|
| Non-load-bearing (stud) | Take down + make good | £400 – £900 |
| Non-load-bearing (masonry) | Heavier, more make-good | £700 – £1,500 |
| Load-bearing (with beam) | Beam, calcs, building control | £1,500 – £4,000 |
| Make good & redecorate | floor/wall/ceiling | included above |
Always confirm load-bearing status first. A load-bearing wall needs a structural engineer and building control — see steel beam costs.
Frequently asked questions
How much does it cost to knock down an internal wall?+
Removing a non-load-bearing stud wall costs £400–£900; a masonry partition £700–£1,500. A load-bearing wall — which needs a beam, structural calcs and building control — costs £1,500–£4,000.
How do I know if a wall is load-bearing?+
Signs include joists running into it, a wall or structure directly above, and its position (central spine walls often are). Don't rely on guesswork — a builder or structural engineer should confirm before any removal.
Related tools & guides
Want to know how these figures are calculated? See our cost methodology.
Cost figures shown are indicative estimates, not quotations. You are responsible for verifying all costs (obtain contractor quotes) and any figures submitted to a lender. ScopeWise is a documentation tool, not financial, tax, structural or planning advice. HMO compliance prompts are guidance only — confirm requirements with your local council, as standards and licensing vary by authority.