Expert Chimney Repairs in Dublin: Repointing, Flashing & Re-Capping

Positioned at the highest point of your property, your chimney stack endures the harshest conditions Irish weather has to offer. High-velocity coastal gales, continuous Atlantic rainfall, and winter frost cycles wear down masonry and leadwork long before the rest of your roof shows signs of age.

When water penetrates a degraded chimney stack, it quickly seeps down internal chimney breasts, soaking through plasterwork, ruining wallpaper, and threatening surrounding ceiling timbers.

With over 15 years of trade experience across North and South Dublin, MP Roofing provides permanent, trade-tested repairs for both period brick chimneys and modern blockwork stacks.

Backed by €6.5 million in public liability insurance and a Safe Pass certified crew, we inspect your chimney up close on camera, show you high-definition video of the failing mortar or torn leadwork, and complete the repair using weather-resistant materials backed by our 5-year guarantee.

The Problem

Severe weather erosion and decades of freeze-thaw cycles had left this brick chimney stack in a dangerous state of structural disrepair. Multiple courses of brickwork had spalled, cracked, and broken away along the corners, leaving deep voids where driving rain could penetrate directly into the building. The mortar joints were completely washed out, vegetation had rooted in the decaying flaunching at the crown, and the deteriorated flashing at the roofline was allowing moisture into the surrounding roof timbers.

The Solution

Mike and the team carefully dismantled the compromised masonry down to sound structural courses. We rebuilt the stack using durable, matching red facing bricks laid in weather-resistant mortar to restore full load-bearing strength and sharp lines. The top crown and corbelling were cleanly reconstructed, the original terracotta pot and wire cowl were securely re-bedded in fresh concrete flaunching, and a brand-new, heavy-duty milled lead apron was custom-dressed around the base and chased deep into the brick joints for a watertight seal.

The Result

A complete structural transformation that eliminates a hazardous collapse risk and permanently stops water ingress while preserving the home's period roofline. As with all chimney restorations by MP Roofing, the job was completed safely, inspected on camera, and backed by our written 5-year workmanship guarantee.

Why is damp appearing around my chimney breast upstairs?

Damp patches on ceilings or walls surrounding a chimney breast usually point to one of three common issues: split or displaced lead step flashing around the base of the stack, crumbling mortar joints in the brickwork that absorb driving rain, or cracked flaunching on top of the stack allowing rainwater to pour directly down the flue lining. We inspect the entire structure to isolate the precise source before beginning work.

Do you repair historic brick chimneys on period Dublin homes?

Yes. We have worked extensively on Victorian, Edwardian, and Georgian properties across areas like South Circular Road, Ranelagh, Rathmines, and Ballsbridge. We understand the specific care needed for period brickwork and lime-based mortars, ensuring structural repairs preserve the architectural character of the building while providing long-term weather protection.

What is the difference between chimney repointing and a full rebuild?

If the bricks themselves are solid and the stack is structurally plumb, repointing is sufficient. This involves raking out the deteriorated mortar between the joints and replacing it with a fresh, durable mix. A partial or full rebuild is only required if the bricks are badly spalled, the chimney has a dangerous lean, or the stack has suffered major structural movement.

How quickly can you attend to an active chimney leak?

We operate a dedicated same-day emergency dispatch service across Greater Dublin. If heavy rain is causing water to pour down a chimney breast or leak through a ceiling, our crew will come out the same day to make the stack watertight, cover vulnerable points, and protect your living spaces before carrying out permanent masonry or leadwork repairs.

What guarantee do you provide on chimney repair work?

Every chimney repair carried out by MP Roofing—including repointing, flaunching restoration, cowl installation, and lead flashing replacement—is covered by our written 5-year workmanship guarantee.