Paver Edge Restraint Repair — Spreading Edges and Sunken Borders
The middle of the patio is fine; the outside row has walked into the lawn, the joints have opened, and the border is an inch low — the edge is the part that holds everything else, and it can be fixed by the foot.
JMB Builders does paver edge restraint repair across the Twin Cities metro: the outside courses of a patio or walk that have crept outward, a soldier course that has dropped, or an edge that never had a restraint at all. The edge pavers come up, the base under them is trued and compacted, a rigid restraint is spiked through the base, and the pavers go back tight with new joint sand. Priced per linear foot of edge, quoted from photos.
- Priced per linear foot of edge
- Edge pavers lifted, base compacted, reset tight
- Rigid restraint spiked through the base
- Frost-heaved spikes replaced with longer ones
- Licensed MN contractor BC809005
A paver patio is a loose assembly held together by its edges. Take the edge restraint away and the outside course has nothing to lean on, so every freeze, every mower wheel and every foot on the border pushes it out a little. The joints open, the sand runs out, the edge row tips and drops, and the movement works inward a course at a time. A patio with a spread edge is not failing everywhere; it is failing at the one place that holds it.
Most edge failures come from one of three things. The restraint was never installed, common on older patios and on DIY jobs where the pavers were set straight into the lawn. The restraint was set on the bedding sand or the soil instead of on the compacted base, so the spikes had nothing to bite and frost pushed them up. Or the base was cut short and the edge pavers sit on the last inch of gravel with soil behind them, so the whole edge sinks. Each one has the same fix: get the edge pavers up, find or build the compacted base under them, and put a restraint on it that the spikes can hold in.
The repair is by the foot. The outside one or two courses come up and are stacked in order. Soft soil behind the edge is dug out and the base gravel is extended and compacted so it runs past the paver edge. A rigid plastic restraint or a concrete curb goes on that base, spiked through it, tight against the pavers. The edge courses go back, pushed inward against the sound field, and the joints are filled with polymeric sand. The lawn or bed is backfilled against the restraint so it is hidden.
What you supply
- Photos along each edge that has moved, one from above and one low across the surface, and one of the whole patio
- A note on which edges border lawn, a bed, a wall or the house, since each is handled differently
- Any spare pavers from the original job for edge units that are cracked or worn
- Furniture and planters moved off the edges being reset
What JMB supplies
- Edge courses lifted and stacked in order so the pattern goes back the way it was
- Soil behind the edge dug out, base gravel extended and compacted so the restraint sits on base, not dirt
- Rigid plastic edge restraint spiked through the base, or a concrete curb where the edge takes traffic
- Longer spikes on a tighter spacing where frost pulled the old ones
- Edge courses reset tight to the field with fresh bedding sand, and the border relaid level
- Polymeric sand in every reset joint and the open joints nearby
- Lawn or bed backfilled against the restraint, and photos in your job folder
How it is priced: per linear foot
Quoted in writing from your photos within one business day. What moves the number:
- Feet of edge being reset, and whether it is one side or the whole perimeter
- How far the movement has worked inward: one course to reset, or three
- Whether the base has to be extended past the edge, or was there and just needs the restraint
- Plastic restraint vs. a poured concrete curb, which we use on driveway edges and walks that get plowed
- Curved edges, which take a flexible restraint and more spikes than a straight run
- Cracked or spalled edge pavers that have to be replaced and matched
- Whether the rest of the patio gets fresh polymeric sand at the same time
Send one photo along each bad edge and say what is on the other side of it: lawn, bed, driveway or the house. We can quote the footage from that.
How long it takes
One side of a patio: half a day. The full perimeter of a typical patio: one day, plus a short return to sand if the weather is wet.
How your project works
- 1
Send photos, get a written quote
Send three photos of the space and a sentence about what you want. You get a clear, itemized quote within one business day. We only come out to measure first when the job needs a tape measure — no pressure, no games.
- 2
Pick materials, or bring your own
We help you choose profiles and materials that fit the house and the budget, or match your existing millwork exactly — or you buy the door or trim yourself and we install it. Everything is confirmed before the crew is scheduled.
- 3
Clean, precise installation
The crew shows up on time, protects floors and furniture, and installs with tight joints and consistent reveals. Photos of the finished work go in your job folder.
- 4
Walkthrough and invoice
We walk the finished work with you. If anything is not right, we fix it before we call the job done. Then one invoice, paid by check or direct deposit — no card fees, no payment links.
Situations and options
Edge that spread into the lawn
The classic. The outside courses have crept out, the joints are open and the mower catches the edge. Courses lifted, base extended, restraint spiked in, pavers pushed back tight and re-sanded, lawn backfilled.
Sunken soldier course
The border row has dropped below the field because it was sitting on soil past the end of the base. The border comes up, the base is built out under it and compacted, and the soldier course goes back level with a restraint behind it.
Restraint on a patio that never had one
A patio set into the grass with nothing holding the edge. The perimeter is trenched, the base is found or built, and a restraint goes in around the whole thing before the edge courses are tightened. Stops the spread before it reaches the middle.
Concrete curb edge
For a driveway apron, a walk that gets plowed or an edge where a plastic restraint keeps lifting: a concrete curb is poured against the outside course below grade, so there is nothing to catch a blade or a spike to heave.
Edge against a wall or the house
Pavers along a foundation or a retaining wall do not need a restraint, but the joint there gets a sand or sealant detail and the pavers are reset with a fall away from the wall so water does not sit against it.
Paver Edge Restraint Repair — Spreading Edges and Sunken Borders: questions, answered
Why are the edges of my paver patio spreading?
Nothing is holding them. Either the patio never had an edge restraint, or the restraint was set on sand or soil instead of the compacted base and the spikes pulled out with the first frosts. Without a restraint the outside course has nothing to lean against, so foot traffic and freeze-thaw push it out a little each year, the joints open, the sand runs out and the edge drops. The fix is a restraint spiked into a base that actually extends past the pavers.
Can you add an edge restraint to an existing patio?
Yes. The edge courses come up, the soil behind them is dug out, and the base gravel is extended and compacted so the restraint has something solid to sit on. A rigid restraint goes tight against the pavers and is spiked through the base, the edge courses go back pushed tight to the field, and the joints get polymeric sand. The lawn or bed goes back over the restraint so it disappears.
Why do my paver edging spikes keep popping up?
They were driven into bedding sand or soil, not into compacted base, so frost lifts them and there is nothing to hold them down. Spikes hold when they go through a rigid restraint into a base that was compacted before the restraint went on. When we reset an edge, the base is extended and compacted first, then longer spikes go in on a tighter spacing than the original job used.
Plastic edge restraint or a concrete curb?
Plastic for most patio and walk edges that meet lawn or a bed: it is fast, it disappears under the grass, and it flexes around curves. Concrete for a driveway apron, a walk that gets plowed, or an edge that has lifted a plastic restraint more than once: a curb poured against the outside course below grade does not heave and there is nothing for a blade to catch. Both go on compacted base, not on dirt.
Do you have to lift the whole patio to fix the edge?
No, only the courses that moved, which is usually one or two on the affected sides. They are stacked in order, the base and the restraint are dealt with, and they go back tight against the part of the patio that never moved. If the movement has worked all the way to the middle, that is a whole-patio reset and it is on the paver repair page, but that is rare; most edges are caught before then.
Will the edge spread again after it is fixed?
Not if the restraint is on compacted base with the spikes in solid. That is the difference between a repair and the original job. The base is extended past the pavers, the restraint is set on it and spiked through it, and the edge courses are pushed tight so there is no gap for movement to start. Top up the joint sand every few years and the edge stays where it is put.
Recent JMB work, from our job log
59 installs recorded across 30 Twin Cities communities since Dec 2025. Window and door installs for homeowners and for the builders and dealers we sub for. Counts come straight from our job log; no customer names.
Get a written quote for this job
Three photos and a sentence is enough. You hear back within one business day. Or text the photos to 763-204-2099.
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Read morePage reviewed September 26, 2026 · JMB Builders LLC, MN license BC809005 · All pavers pages
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