Paver Repair Contractor

Interlocking stone is a resilient and easy-to-maintain option for your outdoor space. Made from interlocking concrete pavers, it is designed to withstand various weather conditions, preventing any shifting or settling issues. In contrast to materials like wood or natural stone, interlocking stones require significantly less maintenance. Additionally, their adaptability makes it effortless to tailor them to match your preferred design style.

Unfortunately due to improper installation or prolonged exposure to heavy traffic without the proper base preparation, pavers may experience shifting, sinking, or heaving in our challenging weather conditions. The advantage of using pavers is that we have the capability to rectify your project while retaining the ability to re-install them.

Learn more about our step repair services here.

What Causes Pavers to Fail

Improper Excavation

The excavation for pavers should be a minimum of the depth of the base, the 1″ bedding layer, and the height of the paver. The minimum excavation for us is 10″ with the depth of the base being a minimum 6″. This allows for a proper foundation that promotes drainage for your pavers. This is unfortunately easily overlooked because it is time-consuming and costly to excavate this much material.

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Improper Base Material

Base material should be free draining. Any water that remains in the base for long periods of time will cause adverse effects to your pavers, jointing compound, and the project as a whole. Stone Dust was once a commonly used base material, but it will soak up water and is not freely draining. It will cause recurring efflorescence on the surface of your pavers because the water remains underneath the pavers and will cause your polymeric sand jointing compound to fail. This water will also cause heaving and sinking.

No Geotextile

Geotextile will separate your subsoil from your base material so there is no contamination between the two and also reinforce your base. This is often overlooked as an added expense, but using geotextile is an inexpensive way to add to the structural integrity of a paver project.

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No Geogrid

Much like geotextiles, geogrid will reinforce your base material to add structural integrity to your projects. This is a material that has not quite been fully embraced in our industry, but it is an inexpensive way to add to the integrity of your base to help withstand the traffic that the pavement surface will experience through its lifetime.

Polymeric Sand Failure

Polymeric sand has several reasons for failure and can cause the sand to be lose, grow moss, or have weed growth overwhelm your joints. The installation steps need to be followed carefully to ensure that your polymeric sand does not fail. There are still other environmental factors that may also cause this jointing compound to fail as well.

How We Repair a Paver Project

We offer three options to our clients when it comes to paver repairs. Typically the problem our clients are experiencing is the sinking and separating of pavers in their walkways, steps, patios, and driveways. We can either lift those materials and re-lay them, or we can lift those materials and replace the base material so that we can offer our warranty on the project, or we can completely replace that project with a new base and pavers. Here are the different options that you have available to you and what the advantages and disadvantages are of each.

Option #1: Basic Repair

The basic repair of your interlock project includes the pressure washing of your pavers, the removal and cleaning of the pavers, the disposal of the 1″ bedding layer, the re-installation of the pavers, and the installation of the edge restraint and polymeric sand jointing compound.

With this option, we do not offer a warranty as we do not have control of how the base material was installed. However, this is the least expensive of the three options for repairing your project. 

Option #2: Base Repair

The second option includes the same features of the first with the additional excavation and disposal of the existing base material (and more if the base was not prepared at the proper depth), the installation of geotextile to separate and reinforce your base material, and a proper base material is installed.

The benefits of this option is that we offer our three (3) year limited warranty on our labour. This option is more expensive than option one as the base preparation is the most expensive step of any paver project.

Option #3: Project Redo

The third option involves starting from scratch, excavating and disposing of all the existing materials on site and installing a brand new project with the proper installation methods to ensure your project lasts. You can find out more about how we install our paver projects here.

 This option is only slightly more expensive than the previous option as the only difference is the cost of the pavers. This provides you with a brand new and up-to-date paver project for you to enjoy.

Basic Repair

Lift and Re-Lay the Pavers

  • Pressure wash and lift the pavers.
  • Remove the bedding layer, dispose of it, and re-install.
  • Re-lay the pavers, install edge restraint and polymeric sand.
  • Does not include our labour warranty.

Base Repair

Lift, Replace Base, Re-Lay the Pavers

  • Pressure wash and lift the pavers.
  • Excavate the base material and dispose of it.
  • Install a minimum 6" base with a geotextile separating the base from the subsoil.
  • Screed a bedding layer, re-lay pavers, and install edge restraint and polymeric sand.
  • Includes our three (3) year limited labour warranty.

Project Redo

Complete Project Overhaul

  • Excavate and dispose of pavers and base material.
  • Install a minimum 6" base with a geotextile separating the base from the subsoil.
  • Screed a bedding layer, install NEW pavers, and install edge restraint and polymeric sand.
  • Includes our three (3) year limited labour warranty.

Cross-Section of an Interlock Project

Compacting the subsoil ensures we are building on top of a firm foundation that will not settle.

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Geotextile separates the subsoil from the base material so that there is no contamination between the two and to provide stabilization especially when paired with geogrid.

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We install and compact 6″ to 8″ of 3/4″ angular crushed clean stone for our base material. This stone has no fines in it allowing water to move freely through the system without being held thus preventing freeze-thaw cycles.

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On top of the base material is a bedding layer that does not exceed 1.5″ to level the base material and allow the pavers to be set into the base material.

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A jointing compound is installed in between the pavers to apply vertical interlock to the system.

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Pavers are laid on top of the bedding layer and later compacted into the bedding layer along with the jointing compound to lock the system in place.

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After the excavation, we compact the subsoil so that we are building our base on a foundation that is not going to settle.

Geotextile is laid to separate the subsoil from the base material to ensure no contamination and reinforce the base material. Geogrid is also used to help stabilize our base material.

The base material is installed and compacted. The depth depends on the project. For patios and walkways we install a 6″ to 8″ base and for driveways we install a 12″ to 14″ base.

The bedding layer is screeded at no greater than 1.5″. This allows us to lay our pavers on a finer grade material than the base material.

Pavers are laid on the bedding layer and a vibratory compactor is used to seat them into the bedding layer.

A jointing compound is installed to ensure vertical interlock. A vibratory compactor helps consolidate the material to the bottom of the joint.

How We Install a Paver Project

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