London · Building Works

Wall removal and steel beams in Barnes

Guide price £3,900–£10,500 including VAT, typically 1–3 weeks including making good, with a free site survey and a written fixed price.

Open-plan kitchen dining room after an internal wall was removed

Free survey in Barnes

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Wall removal is taking out an internal wall to open up rooms; where the wall is load-bearing, a steel beam sized by a structural engineer is installed on padstones to carry the weight above, with the work approved by building control.

Homeowners in Barnes usually consider removing a wall for one of a few reasons: something has worn out, the house no longer suits the way they live, or they are getting it ready to sell. We visit, agree a specification and put a fixed price in writing. Most jobs like this take 1–3 weeks including making good, and we work across London, including Chiswick, Putney and Fulham.

Guide price
£3,900–£10,500 inc VAT
Time on site
1–3 weeks including making good
Postcodes
SW13, SW14, SW15, TW9 and W4
Planning rules
England
Local area
Greater London
Survey
Free, with a written quote

How much does removing a wall cost in Barnes?

Budgeting for removing a wall in Barnes? The numbers below include VAT and are adjusted for London, where costs are about 30% above the national guide. The headline range is £3,900–£10,500. Nothing is final until we have measured up at a free survey and agreed the specification with you.

Type of jobWhat it usually involvesGuide in Barnes
Non-load-bearing wallRemoving a stud or block partition and making good walls, ceiling and floor.£1,050–£2,600
Load-bearing wall up to 4mA typical kitchen-diner knock-through with one steel beam, calculations and building control.£3,900–£10,500
Wide or complex openingOpenings over 4m, posts, flush beams or chimney breast removal.£10,500–£21,000

Expect these to shape the final quote:

  • Opening width and the load the wall carries
  • Beam size, posts, flush fixing and padstone details
  • Services in the wall that need rerouting
  • Floor and ceiling repairs where the wall stood

Scope of the work

  • Survey to establish what the wall supports and where loads go
  • Structural engineer's calculations and beam specification
  • Building control application and inspections
  • Steel beam installed on padstones and packed tight
  • Beam boarded or treated for fire protection
  • Plastering, flooring repairs and making good ready for decorating
Non-load-bearing partitionA stud or block wall that carries no structure, removed with simple making good.
Load-bearing wall with steelA structural wall replaced by a steel beam and padstones to engineer's design.
Steel with postsWide openings that need steel posts or columns for support at intermediate points.
Flush or hidden beamSteel set within the ceiling depth so no downstand is visible, where joists allow.

Building in Barnes

London's housing is dominated by Victorian and Edwardian terraces, often in yellow London stock brick, with Georgian terraces in central districts and mansion blocks across many inner areas. Outer boroughs have large belts of interwar semis, and there are extensive post-war council estates. Many houses have been split into flats, and conservation areas are widespread.

Terraces suit side-return extensions and rear dormer loft conversions; interwar semis commonly take hip-to-gable lofts. Shared party walls, restricted parking and conservation rules often shape the plans and the programme.

In Barnes, as elsewhere in London, we take the building's age and construction into account before recommending anything, because both can change what is involved in removing a wall.

Do you need permission in Barnes?

Which rules apply depends on where you live. For Barnes, the answer is England, and the points below reflect that; we verify them with the council before quoting.

Removing an internal wall does not need planning permission in England unless the house is listed.

If the wall is load-bearing, Building Regulations approval is needed, with a structural engineer’s calculations for the steel beam and padstones. Where the beam bears on a shared wall, the Party Wall etc. Act 1996 applies.

Rules change and every property is different, so we check the planning history and constraints for your address before we quote.

How does the job run?

  1. A visit to your home

    We arrange a free site survey on a date convenient to you. We measure up, look at the existing structure and access, and discuss your plans for removing a wall so the price reflects your home.

  2. Your fixed price

    The quote arrives in writing, not over the phone. It covers the full scope, the finishes you've chosen, any exclusions and the payment schedule, with a fixed price tied to that specification.

  3. Dates and permissions

    With the quote agreed, we book the work in and handle preparation: permissions where needed, building control notifications, material orders and access arrangements for your Barnes property.

  4. On site to finish

    The work is carried out to the agreed specification, with floors and furniture protected and the site kept tidy. At the end we clean up, walk through the finished job with you and hand over any certificates.

How we work

One point of contactA single named contact handles your project from the first survey to the final handover, so you always know who to call with a question.
Written, fixed-price quotesYour quote states one fixed price for the work as we have specified it together, with inclusions and exclusions listed so there are no grey areas.
Tidy, protected work areasFloors, furniture and access routes are covered and protected while we work, and the site is tidied at the end of every working day.
Realistic timetablesWe give you an honest estimate of time on site at the quote stage and keep you informed if anything affects the programme once work starts.

Frequently asked questions

Which postcodes in Barnes do you cover?

We cover SW13, SW14, SW15 and TW9, along with the rest of London. If your postcode is not listed, get in touch anyway: our coverage is UK-wide, and we can usually arrange a survey wherever you live. Enter your postcode in the guide-price tool or contact form and we will confirm.

Can I stay at home during the work?

In most cases, yes. Most people can live at home throughout, and we plan the work to keep disruption down by protecting floors, agreeing working hours and keeping access routes clear. Bigger jobs affecting kitchens, bathrooms or heating may mean a short spell with reduced facilities, and we talk this through with you at the survey.

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

A wall is load-bearing if it carries weight from above, such as floor joists, another wall, the roof or a chimney. Clues include joists running across the wall rather than alongside it, and walls lined up with walls on the floor above. Brick or block walls are often structural but not always. We check from above and below during the survey, and an engineer confirms the design.

How much does it cost to remove a load-bearing wall?

Removing a load-bearing wall of about 3–4m with a steel beam typically costs £3,900–£10,500, including structural calculations, building control and making good. A non-load-bearing partition costs much less. As a rough guide, allow around £600–£1,600 per metre of opening plus fixed costs for the engineer, approvals and propping. Wider openings, posts and flush beams cost more. We confirm a fixed price after the survey.

Can I have a beam that does not show?

A flush or hidden beam sits within the depth of the ceiling so there is no visible downstand, giving a clean, open look. It is possible where the floor joists can be connected into the side of the beam, which takes more steel and labour. It costs more than a standard beam below the ceiling. The engineer confirms whether it suits your house.

Near Barnes

Whether you're in the centre of Barnes or on its outskirts, SW13, SW14, SW15 and TW9 addresses are covered. We extend the same service, and the same fixed-price approach, to Chiswick, Putney and Fulham.

Planning removing a wall in Barnes?

Want to know what removing a wall would cost for your house in Barnes? Our guide-price tool gives you a range, and a free survey turns it into a written quote.

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