Milford Haven · Dyfed
Lintel replacement in Milford Haven
If a window at your Milford Haven property has started to stick and the brickwork above has dipped, the lintel is a likely suspect. Send pictures of both sides of the opening, and we will tell you what we think is happening.
Guide price from£690per opening inc VAT

- Postcodes
- SA73
- Population
- about 14,000
- Area
- Dyfed
- Pricing region
- Wales
What should you know about the ground under Milford Haven?
With roughly 14,000 people, Milford Haven spans postcode districts SA73 in Dyfed. If you are just outside Milford Haven, we also cover Haverfordwest (7 miles).
Shrinkable clay is less common in Dyfed than in south-east England. Parts of Dyfed lie on a former coalfield, so a coal mining search is worth checking if movement has no obvious cause. What you mostly find across Dyfed: stone cottages, Victorian terraces in Llanelli and Carmarthen, and post-war estates.
Repair options we may recommend
Propping and needling
Adjustable props carry the wall above while the old lintel comes out. For heavier walls, short steel needles are passed through holes cut above the opening and propped on both sides, taking the load off the lintel completely. The supports stay until the new work has set.
Best for: Openings with heavy walls, upper floors or bay windows above
Inner and outer lintel replacement
Solid walls and some cavity walls carry separate lintels on the inside and outside faces. Where both have failed, each is replaced in turn, keeping the wall supported throughout. Internal plaster and reveals are then made good and redecorated where included.
Best for: Older solid walls with rotten timber across the inner face
What to expect when we carry out lintel replacement
Specify the replacement
We confirm the lintel type, length and bearing needed. For wide openings, bays or walls with unusual loads, an engineer may specify it, and where the repair needs an engineer’s design or sign-off we can arrange one.
Support the wall
Props or needles are set so the brickwork above carries no load on the old lintel. Windows are protected or temporarily removed where the work demands it, and the room inside is sheeted against dust.
Remove and replace
Brickwork is carefully taken out above the lintel, the old lintel removed and the new one bedded level on full bearings. A cavity tray goes in where relevant, then the brickwork above is relaid.
Is it time for lintel replacement? Common signs
- Brickwork above an opening visibly dipping in the middle
- Soft, crumbly timber visible behind the brick face over a bay
- Rust stains or flaking steel showing above the frame
What should you budget for lintel replacement in Milford Haven?
Prices in Milford Haven are worked out on Wales rates. They include VAT and are a starting point: access, the extent of the damage and whether an engineer or building control is involved all move the figure.
| Item | Guide price | Per |
|---|---|---|
| Standard window or door opening | £690 – £2,300 | per opening |
| Wide or bay openingest. | £1,850 – £4,150 | per opening |
| Making good inside and outest. | £140 – £550 | per opening |
Rules for lintel replacement in Wales
In Wales, the Welsh version of the Building Regulations applies. Underpinning and other work that alters or strengthens the structure needs building control approval and inspection; like-for-like repairs often do not. The Party Wall etc. Act 1996 applies to work on party walls and excavation close to a neighbour’s foundations.
Your lintel replacement questions
How much should I budget for lintel replacement in Milford Haven?
Guide prices for lintel replacement in Milford Haven start from about £690 per opening, including VAT, on Wales rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Can you survey a property in Milford Haven?
Yes. We take enquiries from across Milford Haven, including SA73, and from nearby places such as Haverfordwest. Send photos for a free initial view and we will tell you what happens next.
Why do houses in Dyfed crack?
The western edge of the South Wales coalfield lies beneath Llanelli, Ammanford and parts of Pembrokeshire, while the rest of the area is older hard rock with glacial deposits in the valleys. Only an investigation can say why a particular building has moved.
What does needling a wall mean?
Needling means passing short steel members through holes cut in the wall just above the opening and supporting them on props on both sides. The needles take the weight of the wall above, so the old lintel can be removed safely without any brickwork dropping.
What is a cavity tray and do I need one?
A cavity tray is a damp-proof membrane above a lintel that catches water running down inside a cavity wall and sends it out through weep holes. If your wall is cavity construction and the original lintel had no tray, fitting one with the new lintel is usually sensible.
Related work in Milford Haven
- Retaining wall repairs
- Chimney stack repairs
- Wall tie replacement
- Boundary and garden wall repairs
- Concrete repairs
Lintel replacement near Milford Haven
Have several failed lintels on one Milford Haven property? We will price each opening individually so you can plan the work in stages.