Quality Workmanship
Cost Competitive Rates

Jay Durie
(905) 599-7991

Repair Sagging Interlock
See Photos Below  Paving Stone Repair Burlington See Photos Below   Retaining Wall Blocks Repair Burlington

Sagging Interlock (Lift & Relay) 10 Critical Steps

1. Power Wash stone to remove stains and to remove mud from 4 edges of interlock stone.  Ignoring this step sets up (unsightly) uneven lines when relaying the stone because the brick spacing is uneven.

2. Check the old base to see how much existing bedding there is: patios should be about 4 to 6 inches; driveways should be about 12 inches.

3. Scrape away top lawyer of old base and compact.

4. Using string lines, straight pipes and levels, set grade of new base at approximately 1.5 degrees away from home (driveway usually has a bit more slope).

5. Lay first layer of limestone screenings (crushed limestone), following new grade and compact.

6. Lay second layer of limestone screenings following new grade and compact.

7. Lay third layer of limestone screening following new grade and compact.

8. After the stone is re-laid we run the compactor over the top of the stone one last time to “set” the stone onto the base.

After four & five compactions the new base looks solid, concrete-like!  These steps are time consuming but essential to establishing a solid base. This base should last you about 15 to 20 years.  Some of our competitors will ignore many of these critical steps to save money and increase profits - at the risk of sagging stonework in just a year or two.

9. Polymeric Sand: we use a high quality polymeric sand to fill in the gaps (joints) between the stones.  When activated with a mist of water the sand hardens which strengthens the stonework and prevents unsightly weed growth.

10. Edging: All stonework must be retained.  Otherwise the stone will quickly splay open and move towards the softer lawn & garden edges.  As the perimeter edge of the stone moves toward these soft areas the interior stone starts to follow.  We use 8 foot strips of L shaped edging strips pinned in place with 1 foot spikes to keep your stonework firmly in place.

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