Wall tie replacement in Caernarfon

Postcodes: LL55
Population: about 10,000
Area: Gwynedd
Pricing region: Wales

What should you know about the ground under Caernarfon?

Postcode districts LL55 cover Caernarfon, a Gwynedd town of about 10,000 people. Nearby, we also cover Llangefni (8 miles), Bangor (9 miles) and Pwllheli (18 miles).

Most of Gwynedd is on firmer ground than the clay belts of the south-east. Old metal-mine shafts and workings are recorded in places, so mining searches are routine for some properties. Typical buildings in Gwynedd: Slate and stone terraces, chapels and cottages, Victorian seaside houses and post-war estates.

What happens when we carry out wall tie replacement in Caernarfon?

Tie survey
A metal detector locates the existing ties and shows their pattern. Small holes are then drilled at sample points and a borescope passed into the cavity to see the tie condition, type and embedment. The holes are made good afterwards.
Report and quote
You receive a written summary of what the survey found on each elevation, which walls need new ties, whether old ties should be isolated or removed, and a no-obligation written quote with scaffold shown separately.
Deal with the old ties and make good
Old ties are isolated or removed where the report calls for it, cracked joints are raked out and repointed, and drilled holes are filled in matching mortar. A written note of tie positions and findings goes in your property file.

Signs you may need wall tie replacement

A house built before the 1980s on an exposed or coastal site
Mortar joints that look wider or opened up on one elevation
Outer brickwork bowing or bulging, often worst near the top

How much will wall tie replacement cost in Caernarfon?

The ranges below reflect typical Wales costs for wall tie replacement, including VAT. Scaffold, access and making good can push a job to the top of the range.

Guide prices inc VAT on Wales rates. Items marked est. are our estimates.
Item	Guide price	Per
Mid-terrace houseest.	£1,650 – £3,200	per house
Semi-detached house	£2,300 – £4,600	per house
Detached houseest.	£3,200 – £6,450	per house
Scaffolding where neededest.	£550 – £1,650	per elevation

Which repair method suits a home in Caernarfon?

Partial rebuild of the outer leaf

If a section of the outer leaf has bulged too far to be tied back, it is carefully taken down and rebuilt with new ties built in as the work goes up. This is uncommon, and is usually limited to a gable top, a parapet or a panel under a window.

Best for: Outer leaf too distorted to tie back safely

Isolating the old ties

Where the old ties are swelling and cracking the brickwork, fitting new ties alone may not stop further damage. Each old tie can be isolated, usually by cutting it through within the cavity or sleeving its outer end, so it can no longer lift the outer leaf as it continues to corrode.

Best for: Thick mild steel ties still causing horizontal cracking

Rules for wall tie replacement in Wales

In Wales, small like-for-like repairs do not usually need approval, but work that alters or strengthens the structure needs building control under the Welsh Building Regulations, and the Party Wall etc. Act 1996 can apply to shared walls.

Wall tie replacement in Caernarfon: questions and answers

How much should I budget for wall tie replacement in Caernarfon?

Guide prices for wall tie replacement in Caernarfon start from about £1,650 per house, 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 Caernarfon?

Yes, Caernarfon is covered, along with postcode districts LL55. We also cover nearby Llangefni and Bangor.

Why do houses in Gwynedd crack?

Gwynedd and Anglesey are mostly hard rock with glacial deposits, so clay shrinkage is uncommon. Historic slate quarrying and metal mining have left tips and workings in places. Only an investigation can say why a particular building has moved.

Do all walls of the house need new ties?

Not necessarily, because ties often fail on one exposed elevation long before the others. The survey checks each wall, and the quote covers only the elevations where ties have failed or are close to it. Sheltered walls may simply be noted for future checks.

Can wall ties be replaced on a rendered house?

Yes, new ties can be fitted through render, with each drill hole made good afterwards. The repairs can show on painted render, so redecoration of the affected elevation is often worth including. Render can also hide the cracking pattern, so a survey matters more.

Related work in Caernarfon

Wall tie replacement near Caernarfon

Pick your house type in our quote tool for a Caernarfon wall tie guide price, then book a survey to confirm what condition the ties are in.