How to choose the best contractor for chadwicks paving slabs 600x600 in Ireland
Installing Large-Format Chadwicks 600x600 Slabs
Chadwicks is Ireland's premier builders merchant, supplying high-quality construction materials to tradespeople and homeowners alike. Their **600x600mm paving slabs** (available in granite, concrete, and limestone) are highly popular for creating modern, expansive patios. The large format reduces the number of joint lines, giving gardens a clean, continuous look.
However, because 600x600mm slabs are exceptionally heavy and prone to cracking if laid on uneven ground, hiring a skilled paving contractor is essential.
Vetting Contractors for Large-Format Installations
When interviewing contractors to install Chadwicks 600x600 flags, insist on the following technical standards:
- Full Wet Mortar Bed (Not Dot-and-Dab): Some low-cost installers use the "five-dot" method (placing mortar blobs on corners and centre). This leaves empty voids beneath the heavy 600x600 slabs. Over time, water collects in these voids, freezing in winter and popping the slab loose. The contractor must lay slabs on a full, continuous bed of wet mortar.
- Bonding Slurry Application: Slabs made of dense natural stone or porcelain must have a priming slurry applied to the underside before laying. This chemical bond prevents the slab from lifting.
- Strict Level Checks: Large 600x600 slabs have less margin for error. A minor deviation will create a "lip" (tripping hazard). Ensure the contractor uses long spirit levels and guide lines to guarantee a flush surface.
Verify Insurance and Snagging Agreement
Before work begins, request proof of Public Liability insurance and agree on a written payment schedule. Keep a 5% retention fee until the project is fully complete and you have walked the patio to verify all joints are filled and no slabs are loose or rocking.