Sunderland · Tyne and Wear
Wall tie replacement in Sunderland
If a mortgage valuation on a Sunderland property has flagged possible wall tie failure, the next step is a tie survey and a written quote. We explain what the borescope found on each elevation and price only the walls that need work.
Guide price from£1,650per house inc VAT
- Postcodes
- SR1, SR2, SR9
- Population
- about 170,000
- Area
- Tyne and Wear
- Pricing region
- North East
What is the ground like in Tyne and Wear?
Sunderland is in Tyne and Wear and takes in postcode districts SR1, SR2, SR9. About 170,000 people live there. If you are just outside Sunderland, we also cover Seaham (5 miles), Washington (5 miles) and Houghton-le-Spring (6 miles).
Parts of Tyne and Wear have clay that can shrink near trees in dry spells. Historic coal workings are recorded beneath parts of Tyne and Wear, and a coal mining search is worth checking where movement is unexplained. Across Tyne and Wear, most homes are Tyneside flats and terraces, Victorian villas, inter-war council estates and post-war semis.
Is it time for wall tie replacement? Common signs
- The roof edge or verge lifting slightly above the brickwork
- A house built before the 1980s on an exposed or coastal site
- Outer brickwork bowing or bulging, often worst near the top
What should you budget for wall tie replacement in Sunderland?
These are guide prices for Sunderland, using North East rates and including VAT. Your written quote follows photos or a survey, and is fixed once the repair is specified.
| 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 |
Repair options we may recommend
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
Remedial tie installation
New stainless ties are drilled through the outer leaf into the inner leaf, then fixed by mechanical expansion or resin, depending on the masonry. They are placed to a set grid across each elevation, with extra ties around openings and at the edges. Holes are made good in matching mortar.
Best for: Walls where the original ties have failed or are missing
What to expect when we carry out wall tie replacement
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.
Rules for wall tie replacement in England
Like-for-like repairs such as crack stitching and repointing do not usually need building control approval in England, but anything that changes or strengthens the structure, such as underpinning or rebuilding a wall, does. If the work touches a party wall, the Party Wall etc. Act 1996 may apply.
Your wall tie replacement questions
How much should I budget for wall tie replacement in Sunderland?
Guide prices for wall tie replacement in Sunderland start from about £1,650 per house, including VAT, on North East 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 Sunderland?
We do. Sunderland and the surrounding area are covered, including nearby Seaham and Washington. A free initial assessment from your photos is the first step.
Why do houses in Tyne and Wear crack?
Tyne and Wear lies on the Durham and Northumberland coalfield, with old shallow workings recorded beneath parts of Newcastle, Gateshead and Sunderland, mostly under a cover of glacial clay. Only an investigation can say why a particular building has moved.
Do the old wall ties have to be removed?
Not always, because thin wire ties that cannot swell are usually left in place once new ties are fitted. Thicker ties that are still expanding and cracking the wall are isolated or removed so they stop causing damage. The survey decides which applies.
How do I know if my wall ties have failed?
The clearest sign is horizontal cracking in the mortar joints repeating every few courses, often with a bulge or a lifted roofline. Wire ties can fail with no cracking at all, so a tie survey with a metal detector and borescope is the only reliable check.
Related work in Sunderland
- Structural surveys and crack monitoring
- Crack stitching
- Boundary and garden wall repairs
- Retaining wall repairs
- Floor joist repairs
Wall tie replacement near Sunderland
Need a report for a buyer or lender in Sunderland? Send us the valuation comment and we will explain what a tie survey and quote would cover.