Grantham · Lincolnshire
Brick arch repairs in Grantham
Before repairing a brick arch at a Grantham property, we check what sits behind it. A rotting timber lintel on the inner face is a frequent hidden cause, and fixing only the visible arch would leave the real problem in place.
Guide price from£390per arch inc VAT

- Postcodes
- NG31
- Population
- about 45,000
- Area
- Lincolnshire
- Pricing region
- East Midlands
Is Lincolnshire prone to ground movement?
Grantham (NG31) has around 45,000 residents and sits in Lincolnshire. Nearby places we cover include Sleaford (11 miles), Newark-on-Trent (13 miles) and Melton Mowbray (14 miles).
Lincolnshire has a mix of ground, with clay in some places and firmer rock in others. Ground movement here is more often linked to soils, drains and trees than to mining. Typical buildings in Lincolnshire: Victorian terraces in Lincoln and Grimsby, fenland brick houses, seaside bungalows and post-war estates.
What to expect when we carry out brick arch repairs
Look at the arch closely
Straight-on photos of the arch and the wall either side show us how far it has dropped, whether the bricks are sound and whether the cause seems to be the arch itself or the wall around it.
Choose reinforce or rebuild
We recommend reinforcement where the arch is sound and only slightly displaced, and a rebuild where it has dropped badly or bricks are loose. If the wall beside the opening is moving, that is dealt with first.
Repair the arch
Bars are bonded into the joints above a sound arch, or the arch is taken down and relaid over the former using the original bricks where possible, with matched replacements for any that are damaged.
Is it time for brick arch repairs? Common signs
- Gaps opening between arch bricks at the top or bottom edge
- Cracks stepping out from the arch ends into the wall
- The centre bricks of an arch sitting lower than the rest
What should you budget for brick arch repairs in Grantham?
Prices in Grantham are worked out on East Midlands 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 |
|---|---|---|
| Stitching and reinforcing a sound archest. | £390 – £1,200 | per arch |
| Rebuilding an arch (one side) | £880 – £1,250 | per opening |
| Rebuilding an arch (both sides) | £1,750 – £2,550 | per opening |
Repair options we may recommend
Rebuilding both faces
Where the arch shows inside as well as outside, or a rotten timber behind it has also failed, both faces are rebuilt. The inner timber is replaced with a suitable lintel, and the outer arch is reformed in front. The two are worked in sequence so the wall is supported throughout.
Best for: Arches with a failed timber or inner face
Rebuilding over a former
A timber former is cut to the arch profile and propped under the opening. The old arch is carefully taken down, bricks cleaned for reuse, and the arch rebuilt over the former with tight joints and a properly set keystone. The former stays until the mortar is strong enough to carry the load.
Best for: Badly dropped arches or ones with loose voussoirs
Rules for brick arch repairs 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 brick arch repairs questions
What is the price of brick arch repairs in Grantham?
Guide prices for brick arch repairs in Grantham start from about £390 per arch, including VAT, on East Midlands rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Do you carry out brick arch repairs in Grantham?
We do. Grantham and the surrounding area are covered, including nearby Sleaford and Newark-on-Trent. A free initial assessment from your photos is the first step.
Does the ground around Grantham cause cracking?
Lincolnshire has Lias, Oxford and Kimmeridge clays on the vales, chalk on the Wolds and soft silts and peat in the fens around Boston and Spalding. Fen ground and clay can both settle or shrink in dry years. Only an investigation can say why a particular building has moved.
Why has the middle of my brick arch dropped?
The centre of an arch usually drops because the bricks have lost their wedge, either because the wall at the sides has moved or the mortar has worn away. A rotting timber hidden behind the arch is another common cause. The keystone slipping is the visible result.
Is a dropped brick arch dangerous?
A slightly dropped arch is not usually an immediate danger, but it is no longer carrying load as it should and tends to worsen. Loose bricks that could fall, or a fast-growing crack above, need prompt attention. Do not rely on the window frame to hold it.
More repairs we carry out in Grantham
- Subsidence insurance claim repairs
- Structural crack repairs
- Gable end wall repairs
- Wall tie replacement
- Bay window subsidence repairs
Brick arch repairs near Grantham
Request a written, no-obligation price for arch repairs in Grantham; every arch is itemised, along with any work needed on the inside face.