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Replace flat roof in Londonderry before leaks spread

35 years of roofing experience. Felt, PVC or fibreglass chosen to suit the roof. Manufacturer guarantees on applicable systems.

A flat rooftop with panoramic views of a small town and a prominent church spire in the distance.

A full reset for tired flat roofs

Whole-roof condition checked

We inspect coverings, decking, falls and outlets before deciding what a new roof needs.

System choice kept practical

Felt, PVC or GRP are chosen around the roof structure and how you want the result to look.

Old faults stripped out

Replacement deals with widespread failure instead of hiding it under repeated local patches.

Weathered flat roof surface with visible cracks and blisters under overcast sky.

When patching stops making sense

Some flat roofs reach the point where another patch is just another bill on the way to a full replacement. Widespread membrane failure, recurring leaks, heavy blistering, soft areas in the deck and a roof that has simply run out of useful life all point to bigger trouble across the whole build-up. We assess the covering, the deck, the insulation, the falls, the outlets and the perimeter details before we recommend the next step. Choosing Amac Roofing means getting an honest answer on whether the roof can still be nursed along or whether a full replacement is the sounder call.

A full new waterproof assembly, not another patch

When replacement is the right route, we remove failed materials, deal with any problem in the substrate, prepare the drainage details and install a new waterproof covering suited to the roof. Felt, PVC and fibreglass can all be considered, but the existing structure and your priorities guide the choice. The point of replacing a flat roof is to reset the whole weatherproof assembly rather than keep chasing isolated defects around a tired surface. With Amac Roofing, you get clear replacement options and a roof built for the long haul, not a temporary tidy-up.

A flat rooftop with panoramic views of a small town and a prominent church spire in the distance.

Frequently asked questions

How do I know if my flat roof needs replacing?

If leaks keep coming back, blistering is widespread, the deck is deteriorating or the covering has clearly reached the end of its life, replacement usually needs to be discussed. We assess the roof as a whole first, so you are not paying for a full strip-off when a lesser option would still be sound.

What do you check before replacing a flat roof?

We look at the existing covering, the deck below it, any insulation, the drainage falls, the outlets and the perimeter details. Those points shape the replacement spec. A new surface on top of weak decking or poor drainage simply stores up the next round of trouble.

Can I choose between felt, PVC and fibreglass?

Yes, where the roof build-up allows it. We explain how each system suits the size, shape and use of the roof, then set out the sensible options. That way, you can weigh finish, detailing and structure properly instead of picking blind from a brochure.

Find out if replacement is the right call

Call Amac Roofing to discuss recurring leaks, blistering or soft decking, and we will help you judge repair against full replacement.

Contact us

Amac Roofing

2 Hayesbank Park,
Londonderry,
BT47 2AZ

Business hours

We have no opening hours.

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