Lifting & relaying block paving
In short
Taking up an area — or a whole drive — that has gone wavy or settled, correcting the base beneath it, and relaying the same blocks properly. It costs a fraction of a new drive because the expensive part, the blocks, is already on site and usually perfectly serviceable.
Also called: Relay my block paving · Take up and relay driveway · Reuse existing block paving · Block paving lifted and relaid
Signs you need this
- Ruts along the wheel tracks with the rest of the drive still flat
- A general waviness or dishing across the whole surface
- Whole bays that have settled, often near a chamber or an old trench
- Blocks in good condition on a drive that is clearly moving
- An edge course that has leaned out, taking the paving with it
- A quote for a new drive when the existing blocks are perfectly sound
Relaying is the most underrated job on this site. A block drive that has gone wavy, rutted in the wheel tracks or settled across a bay very rarely has anything wrong with the blocks — they are concrete or clay units that will outlive most of us. What has gone is the base beneath them or the restraint around them. Take the blocks up, deal with what is underneath, put the same blocks back, and you have a drive that looks and behaves like a new one for a fraction of the cost of a new one.
The first step is establishing how far the problem goes, because that decides whether this is a bay, a section or the lot. Ruts in the wheel tracks with the rest flat usually mean the base was thin or under-compacted along that line. A general waviness across the whole drive normally means the edge restraint failed and everything has spread. A single settled area is a trench, a soft spot or a chamber. It is worth lifting a small area first to look at the layers rather than pricing the whole drive off the appearance.
Once up, the blocks are stacked and cleaned, and the bedding sand is removed rather than reused — old laying-course sand is contaminated and no longer a consistent grading, so it will not screed to a proper level. The sub-base is then inspected, dug out where it is wet or contaminated, topped up with clean crushed stone and recompacted in layers. Any soft spot gets excavated further and filled properly rather than bridged over.
Edges get fixed on the way back, and this is the part that determines whether the relay lasts. If the drive spread because there was no haunching behind the edge course, relaying the same blocks against the same unrestrained edge produces the same result in the same timescale. New edgings on a concrete bed with a concrete haunch are not an optional extra on a relay — they are the reason it works.
The blocks then go back on a fresh screeded laying course, in the same bond, with cuts remade where they have been damaged. Weathering means the top surface of the blocks is uniform, so relaid paving does not show a patchwork. Where a proportion have broken or spalled, replacements are put in areas that are least visible and the sound originals brought forward.
The last step is jointing, and it is not a formality. Kiln-dried sand goes in, the surface is vibrated over a protective mat, sand is topped up and it is vibrated again — as many passes as it takes for the joints to stop taking sand. That is what re-establishes the interlock. A relay that is swept, not vibrated, is an area of blocks sat next to each other rather than a pavement.
What the job covers
- A trial lift to establish what the base is actually doing
- Blocks lifted, stacked and cleaned for reuse
- Old contaminated laying-course sand removed rather than reused
- Sub-base inspected, topped up and recompacted in layers
- Soft spots excavated properly rather than bridged over
- New edge restraint bedded and haunched in concrete
- Blocks relaid to the original bond with cuts remade
- Jointing sand vibrated in over multiple passes
What it costs
We don't publish a price for this yet, because a number pulled out of the air is worse than no number at all — your contractor has to honour it. On driveways it would also be close to meaningless: the groundworks are usually the biggest single factor, and how deep the dig has to go varies enormously house to house. You'll get a firm price for your actual job when they ring you back, before any work starts. The quote itself is free and there's no obligation either way.
Common questions
Can my existing blocks really be reused?
Nearly always, and it is the reason a relay costs so much less than a new drive. Concrete and clay blocks are extremely durable and it is the layers under them that fail. Expect a small percentage of losses through breakage during lifting — those are usually absorbed by putting the replacements somewhere inconspicuous.
Will a relaid drive look patchy?
No, because the blocks weather uniformly across their top surface, so relaid paving looks consistent. It looks noticeably better than before, in fact, since it is being re-sanded and reset at the same time. The exception is where a large number of new blocks have to go in — those are placed where they are least visible.
Do I need the whole drive relaid or just the bad part?
Depends on what the base is doing. A single settled bay over an old trench is a local job. Ruts along the wheel tracks may be too. A drive that has spread because the edge restraint failed usually needs the whole area, because the movement is distributed everywhere. The way to find out is to lift a small area and look, before pricing anything.
How much cheaper is relaying than a new driveway?
Meaningfully cheaper, because the blocks — a large share of a new drive's material cost — are already there, and there is much less to excavate and take away. We do not publish figures for it because the honest answer depends entirely on how much base work turns out to be needed underneath, which is exactly what the site visit establishes.
Need this doing in Macclesfield?
Tell us the job and it goes straight to our local contractor — one call back, usually the same day. Free quote, no obligation.