Through-lounge knock-throughs · Exeter
Through-lounge knock-throughs in Exeter
Through-lounge knock-throughs for homes in EX1, EX2, EX4, designed by a structural engineer.
- Itemised written quote
- Beam sized by a structural engineer
- Covering Exeter and nearby
- Free survey visit
- Engineer's calculations arranged
- Building control handled
- Fixed written price once scope is agreed
- England, Wales, mainland Scotland & NI
Through-lounge knock-throughs in Exeter: how it works
Our through-lounge knock-throughs service in Exeter covers everything from the first visit to the completion paperwork. The wider Devon area is covered as well. Postcode districts we cover here include EX1, EX2 and EX4.
Many period terraces and semis were built with a front parlour and a back sitting room divided by a solid brick wall. Opening them into one through-lounge brings light from both ends of the house, but that wall commonly carries the floor joists, the wall between the bedrooms above and sometimes part of the roof load too.
What to expect
- Many owners leave short nibs of wall at each end of the opening rather than going fully wall to wall. Nibs can give the beam a bearing, line up with the chimney breasts and keep the feel of two linked rooms, but the engineer decides whether they are adequate.
- Period ceilings are often lath and plaster, which can crack or sag when the wall below is disturbed. Props are set to spread load gently, and damaged areas are repaired with lime plaster or overboarded, depending on the condition and your preference.
- If the house is listed, internal structural alterations need listed building consent as well as building regulations approval. Conservation area status does not usually affect internal work, but flats within converted period houses normally need the freeholder's consent.
- Chimney breasts on the party wall in each room often sit close to the dividing wall. The beam may need to bear near them or avoid them, so the engineer checks how the breasts and flues relate to the new bearing before the opening width is fixed.
- The structural stage for a through-lounge typically takes three to five working days. Both reception rooms are out of use for that time, so furniture is moved out or stacked and sheeted, and the hallway is kept clear as the main walkway.
From survey to sign-off in Exeter
Look and measure
We check the wall, the span you want and what the wall is carrying, and photograph anything the engineer needs to see.
Design and price
Calculations come back from the engineer and we confirm your fixed written price, line by line.
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.
Fit, inspect, finish
The work is propped and the steel installed and packed tight. After inspection the opening is boxed, plastered and left clean.
What do through-lounge knock-throughs cost in Exeter?
As a guide, budget £2,600–£5,650 including VAT for through-lounge knock-through in Exeter, based on published UK cost guides adjusted for prices in the South West (+3%).
| Job | Typical guide range | What it usually covers |
|---|---|---|
| Through-lounge knock-through | £2,600–£5,650 | Wall between front and back reception rooms, steel beam, approvals, plastering and floor infill |
| Kitchen-diner knock-through | £2,600–£6,200 | Internal structural wall between kitchen and dining room, steel beam, approvals and making good (kitchen fitting extra) |
| Temporary works and propping | £150–£520 | Props, spreaders, needles and sole plates for a typical opening, installed and struck |
| Chimney breast removal (ground floor) | £1,550–£3,100 | Ground-floor breast removed, steel to support the breast above, building control 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.
Building control and neighbours in Exeter
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.
If the beam bears into a wall you share with a neighbour, the Party Wall etc. Act 1996 applies, and a party structure notice must be served at least two months before that work starts. We arrange this through a party wall surveyor.
Through-lounge knock-throughs in Exeter: your questions
How much do through-lounge knock-throughs cost in Exeter?
As a guide, budget £2,600–£5,650 including VAT for through-lounge knock-through in Exeter, based on published UK cost guides adjusted for prices in the South West (+3%). The exact figure depends on the span, what the wall carries, access and the finish, and is fixed in writing once the scope is agreed.
How soon can through-lounge knock-throughs start in Exeter?
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 a through-lounge?
In England and Wales, yes, if the beam end will be cut into the wall shared with your neighbour: a party structure notice must be served at least two months before that work. Your neighbour can consent or dissent. Scotland and Northern Ireland have no Party Wall Act, so title deeds and the general law apply instead.
Do I need consent to knock through in a listed building?
Yes, you need both listed building consent and building regulations approval. Listed building consent from the local planning authority covers internal structural changes to the building's fabric, and building control covers the structural safety. Carrying out works to a listed building without consent is an offence, so it must be in place before anything is booked.
Can I knock my front and back rooms into one?
Yes, in most houses. The dividing wall is usually load-bearing, so a structural engineer designs a steel beam to carry the floor and wall above, and building control approves the work. In terraces and semis the beam often bears into the party wall, which in England and Wales means serving a party wall notice before work starts.
Do you also work near Exeter?
Yes. We also cover nearby towns including Heavitree, Exmouth, Tiverton and Newton Abbot.