Expert Chimney Repairs Services

Comprehensive chimney maintenance, pointing, and repair services to ensure safety and prevent leaks. We bring our roofing services to properties across Dublin, Kildare, Meath, and Wicklow.

Detailed Service Guide

Chimneys are arguably the most exposed architectural elements of any building. Standing proud of the roofline, they bear the full, unrelenting brunt of wind, driving rain, and freezing temperatures. Over time, this extreme exposure causes the mortar joints to degrade, the brickwork to become porous, and the vital lead flashings at the base to crack. Our specialised chimney repair services are designed to address these vulnerabilities, preventing structural collapse and interior damp.

We tackle chimney degradation with a comprehensive suite of repair techniques. Our teams expertly grind out crumbling, sandy mortar and deeply repoint the brickwork using specifically formulated, weather-resistant mixes that accommodate the chimney's thermal expansion. We also focus heavily on the chimney crown—the concrete cap that seals the top of the stack. If cracked, it allows water to pour directly down the flue; we recast these crowns to restore a perfect, shedding seal.

Crucially, we address the complex junction where the chimney meets the roof. The stepped lead flashing in this area is a notorious weak point for leaks. We carefully remove failed flashings, custom-dress new, high-code lead sheet into the brickwork, and secure it with lead wedges and professional pointing. Whether you require minor repointing, the fitting of protective cowls, or the complete removal of a redundant stack, our work ensures your chimney remains safe and watertight.

Warning Signs & When to Act

• Damp Chimney Breasts: Dark, damp patches or peeling wallpaper appearing on the internal walls directly below the chimney stack.
• Crumbling Exterior Mortar: The cement between the external bricks of the chimney is visibly eroding, leaving deep gaps.
• White Salt Staining: Efflorescence (white powdery marks) on the brickwork indicating that water is soaking through the masonry.
• Debris in the Fireplace: Pieces of mortar, broken brick, or twigs falling down the flue into the hearth.

Scope of Work

Grinding out and repointing degraded mortar, casting new concrete crowns, replacing lead flashings, and capping or removing redundant chimneys.

Our Process

1. Erection of safe access equipment.
2. Removal of damaged mortar or leadwork.
3. Deep repointing using a weather-resistant mortar mix.
4. Installation of new flashings and re-bedding of chimney pots.

Inspection & Quality Checks

• Thorough grinding out of old mortar to a sufficient depth to ensure the new pointing anchors securely.
• Application of patination oil to all new leadwork to prevent unsightly white oxidation stains on the roof.
• Physical stability checks of all chimney pots and the recasting of the flaunching around their base.
• Verification that the newly installed flashings perfectly contour the roof tiles without leaving capillary gaps.

Project Preparation

Chimney work often requires scaffolding or specialist access equipment. Please clear the area directly beneath the chimney stack on the ground level. If the chimney is in active use, we ask that you refrain from lighting fires for at least 24 hours prior to our arrival to ensure the structure is safe to work on.

Aftercare & Maintenance

Once repaired, keep an eye out for any further dampness internally as the existing moisture slowly dries out. If your chimney is no longer used for open fires, consider having us fit a vented capping cowl to prevent rain and birds entering while still allowing the flue to breathe.

Quotation Checklist

• Verify that the quote specifies the depth to which the old mortar will be ground out before repointing.
• Ensure the thickness (Code) of any new lead flashing is clearly stated (typically Code 4 or 5).
• Check that safe access equipment (scaffolding or cherry picker) is fully included in the price.
• Confirm whether the repair involves the recasting of the concrete chimney crown (flaunching).

FAQs

What are signs my chimney needs repair?

Look out for crumbling mortar, water stains on ceilings near the chimney, or debris falling into your fireplace.

Do you replace chimney flashing?

Yes, we specialize in stepped lead flashing repair and replacement to create an impenetrable watertight seal.

Can you remove an unused chimney?

Yes, we offer complete chimney removal (taking it below the roofline) and make-good services to tile over the gap.

Why is my chimney leaking?

Leaks are usually caused by cracked lead flashing, porous brickwork, or a cracked concrete crown on top of the stack.

Do you fit chimney cowls?

Yes, we fit a variety of cowls to prevent bird nesting, stop downdraughts, and keep rain out.