How much does it cost to repair a roof in Ireland?

Chimney repairs Cost

The lead flashing around a chimney helps protect the overall roof structure from the effects of the elements, keeping rain out of the vulnerable part of the roof where the chimney meets the tiles. Good lead flashing will last for decades, but if it is badly fixed or too thin, it can come loose or crack and lead to larger problems.

The price for replacing all four sides of flashing (the apron, step flashing and back box) is around €400 to €500 for the materials and the labour - however, this is the cost if no scaffolding is involved. If it is needed, as it commonly is with chimney jobs, particularly on two-storey homes, then the cost will be around €300 to €400 more expensive, meaning a typical cost to replace the lead flashing on a chimney will be around €800.

If you are simply repairing the flashing with a new section or sealing up cracks with welding, then the costs can be around €200 for the repairs themselves, but again, the price of scaffolding will increase this.

Sagging Roof repairs Cost

Some homes can develop a sag, where the ridge bows in the middle below the height at the gable ends. This can happen for different reasons, for example, if the roof tiles were replaced at some point with a heavier alternative which has slowly weighed down the timber frame supporting the roof. Sagging roof repair costs can vary - if extra weight is the problem, additional joists or rafters can be added to shore up the additional weight, which can cost between €1,000 and €2,000 depending on how many are needed. Sometimes, a roof can sag because it has become waterlogged and the internal structure is irreparably damaged. If this is the case, the entire roof will need to be replaced, which can cost anywhere from €5,000 to €12,000 depending on the size of the property.

Roof tile replacements

In the simplest instances, you might have a missing or damaged roof tile which is letting in water. If this is the case, it can cost around €200 for a roofer to replace a handful of cement, clay or slate tiles, and can be done relatively quickly, typically in a few hours. Fixing a tiled roof will help fend off any leaks that result from slipped roof tiles. The cost of replacing roof felt under tiles will be included in the overall tiled roof roof repair costs.