Steel BeamInstallers
Garage conversion with the old door opening being bricked up around a new window

Garage conversion openings · Bournemouth

Garage conversion openings in Bournemouth

Garage conversion openings for homes in BH1, BH2, BH3, designed by a structural engineer.

  • Price fixed in writing once scope is agreed
  • Building control arranged
  • Temporary works and making good included

Free survey in Bournemouth

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  • Free survey visit
  • Engineer's calculations arranged
  • Building control handled
  • Fixed written price once scope is agreed
  • England, Wales, mainland Scotland & NI

What garage conversion openings involve in Bournemouth

We cover garage conversion openings in Bournemouth (BH1, BH2, BH3) and the streets around it. We also cover the surrounding towns and villages in Dorset. Each job is designed by a structural engineer and approved through local building control before work begins.

Converting a garage is a popular way to add a room without extending. Structurally, two things usually happen: the big garage door opening is filled in with a wall, window or door on proper foundations, and a doorway or wider opening is formed through the wall between the garage and the house.

Key points for your project

  • Once the garage becomes a habitable room, the energy efficiency requirements of the building regulations apply. Walls, floor and roof normally need insulating to current standards, so the structural design and the thermal upgrade are planned together.
  • Garages built before 2000 can contain asbestos cement in roof sheets, wall panels or the garage door itself. A survey of the materials being disturbed is needed before work starts, so any asbestos can be removed or managed correctly.
  • An integral garage is usually separated from the house by fire-resisting construction. If part of it stays as a garage or store, that separation must be kept, and any new door between garage and house normally needs to be a fire door.
  • Forming a doorway from the house into the converted garage often goes through a load-bearing wall, especially the original external wall of the house where the garage is attached. That opening needs a lintel or beam designed by the engineer.
  • Most garage conversions do not need planning permission, but some estates have conditions removing permitted development rights for garages, and listed buildings or flats need consent. Changing the front elevation can also need permission in some areas.

What happens, step by step

  1. Survey in Bournemouth

    We visit, look at the wall and what sits above it, measure the opening and note services, access and how the steel can be brought in.

  2. Engineer's design

    A structural engineer sizes the beam, padstones and any posts, and sets out the temporary support needed while the wall is out.

  3. Building control

    We submit a building notice or full plans application to the local council's building control team, so approval is in place before the wall is touched.

  4. Install and sign-off

    Props go in, the opening is formed, the steel is set and packed, building control inspects it, and we make good.

Guide prices for garage conversion openings in Bournemouth

As a guide, budget £1,050–£3,100 including VAT for garage door opening infill (structural part) in Bournemouth, based on published UK cost guides adjusted for prices in the South West (+3%).

JobTypical guide rangeWhat it usually covers
Garage door opening infill (structural part)£1,050–£3,100Beam or lintel checked or replaced, foundation and infill wall for the old door opening (window and finishes extra)
Structural calculations for a beam£260–£770Site measure or photos, beam and padstone design and calculations for building control
Lintel replacement£410–£1,240 per lintelPropping, removing the old lintel, new lintel set on beds and brickwork made good
Widening an internal doorway£1,050–£2,600Opening widened with a new lintel or short beam, approval where structural, and making good

Figures include our approximate regional adjustment for prices in the South West (+3%) and are rounded. How these figures are worked out.

Approvals in Bournemouth

In England, taking out a load-bearing wall or putting in a beam is building work under the Building Regulations 2010. It needs approval from building control, either the local council's building control team or a registered building control approver, through a full plans application or a building notice. Part A covers the structure and Part B covers fire safety, which is why steel in homes is usually fire protected.

Terraced and semi-detached homes often need party wall notices, because cutting into a shared wall to take a beam end is notifiable under the Party Wall etc. Act 1996. Allow at least two months for the notice period unless your neighbour agrees sooner.

Building rules in England

Garage conversion openings near Bournemouth

Questions about garage conversion openings in Bournemouth

How soon can garage conversion openings start in Bournemouth?

Start dates depend on the engineer's calculations, the building control approval and, where needed, party wall notice periods. We give you a realistic timetable after the survey and keep you updated as each approval comes through.

Do I need a party wall agreement for garage conversion openings in Bournemouth?

Yes, if the beam bears into a shared wall: the Party Wall etc. Act 1996 applies in England and Wales, and a party structure notice must be served at least two months before that work starts. We arrange it through a party wall surveyor.

Can I convert an integral garage with a bedroom above?

Yes, and it is a common type of conversion. The main structural point is the beam over the garage door, which usually carries the front wall of the bedroom. The engineer checks its condition and capacity, and the floor between garage and bedroom may need fire protection and insulation upgrades as part of the work.

Does the infill wall need foundations?

Yes. A new masonry wall across the garage door opening needs a proper footing, as the existing garage slab is usually not designed to carry it. A trench is dug across the opening and a foundation is formed to the engineer's and building control's requirements, then inspected before the wall is built.

Is my garage floor suitable for a living room?

Rarely as it stands. Garage floors are often lower than the house, may slope towards the door and usually lack insulation and a damp-proof membrane. The floor is normally built up with a membrane, insulation and screed or a timber floor to meet the house level and the building regulations.

Do you also work near Bournemouth?

Yes. We also cover nearby towns including Christchurch, Poole, New Milton and Totton.

Planning to take a wall out?

Book a free survey visit. You get an itemised written quote covering calculations, building control, steel and making good.