Kitchen Wall Knock-Through — fixed prices

A structural opening formed between kitchen and dining or living space, with a steel beam installed to engineer's calculations and the surrounding finishes made good. Priced as one job including the calculations and building control.

Typical UK fixed cost £3800

Kitchen Wall Knock-Through carried out by a UK building & renovation company

Fixed prices for kitchen wall knock-through

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What's usually included

  • Structural engineer calculations for the beam
  • Temporary propping and formation of the opening
  • Steel beam supply, installation and fire protection
  • Making good to plaster and floor
  • Building control inspection and sign-off

About building & renovation on Fixed Costs

Builders publishing fixed prices for clearly defined jobs — knock-throughs, garage conversions, patios and extensions.

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Kitchen Wall Knock-Through — your questions answered

Do I need building regulations for a knock-through?
Yes, always. Removing a load-bearing wall is structural work and needs calculations plus building control sign-off.
How long does a knock-through take?
Around one to two weeks including propping, steel installation and making good, plus drying time before decoration.
How do I know if a wall is load bearing?
Assume it is until an engineer or builder confirms otherwise. Walls running perpendicular to floor joists usually carry load.
Do I need to tell my neighbours?
If the wall is a party wall in a semi or terrace, a party wall notice may be required. Your builder should flag it at survey.