Working around overhead power or telecoms lines during repair
A post repair beneath an overhead service line limits how tall equipment or extended tools can be used safely, and any post reset in that position needs the same overhead clearance considered as it would during a new installation.
Where a line runs close to the repair, checking clearance and, if needed, contacting the network operator before starting is worth doing even for what looks like a routine single-post job.
Diverting a public right of way away from a new fence
Where a registered public right of way crosses land that's being fenced, it's not something that can simply be blocked — a formal diversion order from the council is needed to legally move its route.
This process typically involves public consultation and can take a meaningful amount of time, so it needs building into any project timeline where it's relevant.
Checking the definitive map of public rights of way, held by the county or unitary council, before finalising a fence layout avoids inadvertently obstructing a protected path.
Gate hardware for a deck-level opening
A gate set into a deck balustrade, for example at the top of external steps or beside a pool, benefits from a self-closing hinge and childproof latch in the same way a pool or driveway gate would, particularly where there's a fall risk beyond it.
Hardware exposed to full weather on an open deck needs the same corrosion-resistant fixings as an exterior fence gate, since a deck gate often sees more direct rain and UV exposure than a gate tucked against a house wall.
The gate frame needs bracing consistent with the balustrade posts either side of it, since a lightweight infill gate hung between two structural posts is only as safe as its own resistance to being pushed or leant on.
CDM Regulations and domestic clients
The Construction (Design and Management) Regulations 2015 apply even to domestic projects like fencing and decking, though in a domestic setting the client's specific duties are normally treated as passed to the contractor unless otherwise agreed.
In practice this means the appointed contractor typically takes on responsibility for managing health and safety on the project, rather than the homeowner personally.
It's still reasonable for a homeowner to ask how a contractor manages site safety, particularly on larger multi-trade projects involving several contractors on the same domestic site.
Arris rails and rail counts by height
Arris rails are the triangular-section horizontal timbers that run between posts and carry the vertical boards in a closeboard fence, and how many are used per bay is set by the finished height rather than fixed at two everywhere.
A fence up to around 1.2m typically runs on two rails, but anything taller — particularly 1.8m closeboard — needs a third rail roughly at mid-height to stop the boards bowing outward under wind pressure.
Morticing the rail ends into the post rather than merely nailing them on gives a stiffer, longer-lived joint, which matters more as the number of rails and the height of the fence both increase.
Land Registry title plans and their limits
Land Registry title plans are based on Ordnance Survey mapping and are deliberately described as showing 'general boundaries' rather than the precise legal line, typically accurate to a scale where a boundary can shift by up to half a metre without contradicting the plan.
That means a title plan is rarely enough on its own to settle exactly where a fence should sit to the centimetre, particularly on older plots where boundaries have drifted gradually over decades of replacement.
A determined boundary application can fix a precise legal line where a dispute genuinely needs it, but for most routine fence replacements, agreeing the line by eye with reference to the existing structure and the general boundary plan is the practical approach.
Fixing a fence or gate to a neighbour's wall
Attaching a new fence panel, gate post or trellis to a wall that belongs solely to a neighbour is a trespass unless they've agreed to it, even where the fixing itself is small and reversible like a single bracket.
Where a wall is genuinely shared or in unclear ownership, written agreement before drilling avoids disputes later, particularly since removing a fixing can leave visible damage the wall owner didn't consent to.
The safer default on an unclear boundary is a free-standing post set just inside the client's own land, rather than relying on an existing structure whose ownership hasn't been confirmed.
Dog day-care and kennels
Commercial dog day-care and kennel boundaries need to be genuinely dig-proof and jump-proof rather than just visually enclosing, which usually means a below-ground kick board or buried mesh apron along the base as well as adequate fence height.
Licensing under the Animal Welfare (Licensing of Activities Involving Animals) Regulations sets minimum boundary standards for kennels and day-care premises, and an inspector will check fence condition as part of renewal.
Double-gated airlock entries, where an inner and outer gate can't be open at the same time, are a common feature at the perimeter to stop dogs escaping through a single opened gate.
Keeping weep holes and drainage gaps clear after fixing
Some fixings and bracket systems include small drainage gaps or weep holes designed to let water escape from behind a post-to-wall connection, and these can be inadvertently sealed over with excess sealant or packed with debris during fitting.
Checking that these gaps remain open once a fixing is complete is a quick final step that's easy to skip once the main structural work feels finished.
A blocked weep hole doesn't cause an obvious immediate problem, but it lets moisture accumulate behind the fixing point where it isn't visible, quietly encouraging rot or corrosion out of sight.
Working over a neighbour's flowerbed
Repairing a shared boundary sometimes means working from the neighbour's side, particularly where the fence faces that way or access from the owner's side is blocked, and that access should be agreed with the neighbour before work starts.
Protecting planting beds and lawn on the working side during the repair avoids turning a fence job into a wider dispute over incidental damage.
Repair-versus-replace decision based on how many posts have failed
Where only one or two posts in a run have failed, individual repair is usually the more sensible option, but once roughly a third or more of the posts along a run show the same rot or movement, a full run replacement often ends up more reliable and no more disruptive.
Counting failed posts as a proportion of the run, rather than judging each one in isolation, gives a clearer basis for that decision than reacting to whichever post has failed most recently.
Dealing with a manhole cover sitting on the boundary line
A manhole or inspection chamber cover on or near the fence line has to stay accessible, since utility companies and drainage authorities retain a right to lift covers for maintenance regardless of what's built nearby.
The practical fix is usually to offset the nearest post to one side and let a shortened panel or gravel board span across above the cover, rather than boxing it in or fencing directly over it.
Where the chamber serves a shared drain, it's worth confirming with a neighbour or the water company which covers must stay clear before finalising post positions, since covering one by mistake can mean taking the fence apart again later.
Powered auger versus hand-digging post holes
A petrol or hydraulic auger speeds up digging significantly on open, obstruction-free ground, but is the wrong tool near known services, tree roots or previous hardstanding, where it can't tell the difference between soil and something it shouldn't hit.
Access also decides the method — an auger needs room to manoeuvre and, for larger machines, a route wide enough to bring it onto site, which isn't always available on a narrow rear plot.
Hand-digging costs more in labour time but gives far more control in tight, obstructed or sensitive ground, which is why most quotes specify the method appropriate to the actual site rather than assuming the fastest option by default.
Obstruction offences under the Highways Act
The Highways Act 1980 makes it an offence to obstruct a public highway, including the footway, without lawful authority, which is the underlying reason fencing, skips or materials on a pavement need proper authorisation.
This applies regardless of whether the obstruction is temporary for a delivery or intended as a permanent boundary feature encroaching onto highway land.
Where any part of planned boundary work might extend onto or over a public footway or verge, checking with the highway authority first avoids a straightforward enforcement issue later.