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Repairs and surveys

Edge trims, outlets and drainage across Lincolnshire

Edge and drainage work in Lincolnshire covers garages, extensions, dormers, flats and commercial roofs. We fit GRP or aluminium trims, raised kerbs at walls, new or repaired outlets, gutter runs and overflows, all fixed to a sound deck edge and finished with materials compatible with the roof. Rotten fascias and deck edges are replaced first.

Aluminium drip trim discharging into a new black gutter beside a roof outlet on a rubber flat roofComputer-generated example image
Guide price
£120–£340
Repair price
Confirmed once the leak or damage is found
Condition survey report
£150–£290
Coverage
England, Wales, Scotland, NI

Lincolnshire at a glance

Largest towns
Lincoln, Grimsby, Scunthorpe, Boston
Postcode areas
DN, LN, NG, PE
Building control
City of Lincoln Council, North East Lincolnshire Council, North Lincolnshire Council and 6 other councils
Neighbouring areas
Nottinghamshire · East Riding of Yorkshire · South Yorkshire · Derbyshire
Guide price region
East Midlands (−2% on West Midlands rates)

How much does a new roof edge or outlet cost in Lincolnshire?

Guide prices including VAT at East Midlands rates. We confirm the price once we've traced the leak or seen the damage.

JobGuide price inc VAT
Outlet or drainage repair£120–£340
Localised patch repair£150–£490
Upstand or flashing repair£250–£640
Emergency temporary weatherproofing visit£180–£440
Condition survey and leak investigation£150–£290

Which flat roofs are common in Lincolnshire?

Flat roofs in Lincolnshire sit on lock-up garage blocks on estates, 1960s and 1970s link-detached houses with flat-roofed garages and porches and 1930s semis with flat-roofed garages and kitchen extensions. The East Midlands is drier than the west of Britain, so most flat roofs here fail through age, UV and poor detailing at upstands rather than sheer rainfall. Approximate 1991–2020 regional averages based on Met Office data.

Building regulations in England

Replacing more than half of a roof over a heated room usually counts as renovating a thermal element, so it is insulated to current standards and notified to building control. Renovated roofs over heated rooms are insulated to around 0.16 W/m²K where that's feasible, and new extension roofs are built to 0.15 W/m²K. In Lincolnshire the application goes to City of Lincoln Council, North East Lincolnshire Council, North Lincolnshire Council and 6 other councils. More on the rules.

Do flat roofs need overflows?

Roofs that drain to internal outlets or behind parapets should normally have an overflow, so that if an outlet blocks, water spills somewhere visible instead of rising over the upstands and into the building.

An overflow is usually a spout or weir set through the parapet or kerb at a level below the top of the upstands. When water runs from it, that is a sign the main outlet is blocked or overloaded. On a simple roof that drains over a drip trim into an external gutter, the open edge itself does the same job.

We look at where the water goes in heavy rain, how many outlets the roof has for its size, and whether the outlets, hoppers and downpipes are clear and properly connected. Leaf guards on outlets help on roofs near trees, as long as they are cleared regularly.

How long do flat roof trims and outlets last?

Properly fixed GRP or aluminium trims and well-installed outlets should last about as long as the waterproofing they are part of. What shortens their life is poor fixing, movement in a rotten deck edge and blockages that are never cleared.

A quick check of outlets and gutters each autumn, and again after storms, prevents most drainage problems. Look for leaves and silt in outlets, gutters pulling away from the fascia, trims that have lifted or split at joints and staining on the wall below the edge. The maintenance guide lists what to check and when. Only check what you can see safely from the ground, a window or a ladder at the edge, and never walk on a roof that isn't designed for it.

Which towns in Lincolnshire do we cover?

Edge trims, outlets and drainage in Lincolnshire: questions

Which towns in Lincolnshire do you cover?

All of Lincolnshire. The main towns have their own pages below, and if yours isn't listed we still cover it: send your postcode and we'll confirm.

How much does a new roof edge or outlet cost in Lincolnshire?

£120–£340 for an outlet or drainage repair, at East Midlands guide rates including VAT. We confirm the price once we've traced the leak or seen the damage.

Which postcode areas do you cover in Lincolnshire?

All of Lincolnshire, including the DN, LN, NG, PE postcode areas. Send your full postcode and we'll confirm.

Do new trims need building regulations approval?

Not usually on their own. Approval only becomes a question if the work is part of a larger re-roofing job or alters the structure.

How often should flat roof outlets be cleared?

At least once a year, ideally in autumn after the leaves fall, and more often for roofs under trees. A quick check after heavy storms is also worthwhile.

Is some standing water on a flat roof normal?

A thin film that clears within a day or two of rain is common and usually harmless. Deeper water that lingers for days points to poor falls, a sagging deck or a blocked outlet and should be looked at.

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