Boundary and garden wall repairs in Barnet

Postcodes: EN4, EN5, N3, N12, N20
Population: about 390,000
Area: Greater London
Pricing region: London

Is Greater London prone to ground movement?

Barnet takes in postcode districts including EN4, EN5, N3, N12, N20, with about 390,000 residents. Nearby, we also cover Haringey (4 miles), Borehamwood (4 miles) and Potters Bar (5 miles).

Shrinkable clay is widespread in Greater London. Ground movement here is more often linked to soils, drains and trees than to mining. Across Greater London, most homes are Victorian and Edwardian terraces with shallow footings, inter-war semis in the outer boroughs, and converted flats and mansion blocks.

Methods for boundary and garden wall repairs

Repointing and minor repairs

Weak mortar is raked out and the wall repointed in a mortar that suits the bricks, and damaged bricks are replaced with matching ones. Loose copings are rebedded or replaced with a design that throws water clear of both faces. This is often enough for an upright wall.

Best for: Upright walls with weathered joints, loose copings or spalled bricks

Rebuilding a leaning section

The leaning or badly cracked section is taken down, sound bricks cleaned for reuse, and the wall rebuilt on a new footing at a suitable depth. A damp-proof course and a proper coping are added, and the new work is jointed to the sound wall either side.

Best for: Sections that lean, rock or have cracked right through

From first photo to finished repair

Photos and ownership
Send photos of the whole wall and close-ups of cracks, the lean and the coping, plus any nearby trees. Tell us whether the wall is yours, shared or your neighbour’s, as that affects who can instruct the work.
Site assessment
On site we check the lean with a level, look at the footing where it can be seen, note the bricks and mortar, and check for trees, soil loading and gate loads. If the wall turns out to be retaining soil, we treat it as a retaining wall.
Repair and rebuild
Sections are taken down, footings dug, and the wall rebuilt or repointed with a damp-proof course and coping. Reclaimed or matched bricks keep the wall consistent, and spoil and old materials are removed at the end.

Symptoms that point to boundary and garden wall repairs

Vertical cracks at regular intervals along a long run of wall
A tree close to the wall, with the base lifted or cracked
Wall leaning towards the pavement, drive or neighbour’s garden

Guide prices for boundary and garden wall repairs in Barnet

For Barnet we use London rates. Treat the table as a budget guide, inc VAT; the price you pay is the one on your written quote.

Guide prices inc VAT on London rates. Items marked est. are our estimates.
Item	Guide price	Per
Repointing and minor repairsest.	£375 – £1,500	per wall
Rebuilding a leaning sectionest.	£190 – £440	per m² of wall face
New brick piersest.	£310 – £750	per pier

Rules for boundary and garden wall 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.

Frequently asked questions

How much should I budget for boundary and garden wall repairs in Barnet?

Guide prices for boundary and garden wall repairs in Barnet start from about £375 per wall, including VAT, on London 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 Barnet?

Yes, Barnet is covered, along with postcode districts EN4, EN5, N3, N12. We also cover nearby Haringey and Borehamwood.

Why do houses in Greater London crack?

Most of Greater London sits on London Clay, among the most shrinkage-prone ground in the UK, with river gravels along the Thames. Subsidence claims here are among the most frequent in the country, especially after dry summers and near street and garden trees. Only an investigation can say why a particular building has moved.

Does the Party Wall Act apply to garden walls?

It can, in England and Wales. A boundary wall that stands astride the line of junction, used by both owners, can be a party fence wall under the Party Wall etc. Act 1996, and some work to it needs notice. A wall wholly on one side is not covered in the same way. Scotland and Northern Ireland have no Party Wall Act.

Is a leaning garden wall dangerous?

It can be, particularly a tall wall, a front wall by a pavement or one that moves when pushed. A slight lean that has not changed for years may be stable, but a wall leaning more each year should be kept clear and repaired before a storm finds it.

Related work in Barnet

Boundary and garden wall repairs near Barnet

If tree roots have lifted a wall at your Barnet home, send photos of the wall and the tree, and we will suggest a repair that allows for them.