How to Add a Patio Paver Next to a Concrete Slab

Enhancing outdoor spaces with a patio paver next to a concrete slab offers an excellent opportunity to elevate the aesthetic appeal and functionality of your living area. However, the process of seamlessly integrating these two surfaces requires meticulous planning and execution. Before embarking on this project, it’s crucial to inspect your existing concrete slab for any signs of large cracks, dips, or rises, as addressing these issues is paramount for a successful outcome. Once these concerns are addressed, you can opt to cover your patio face with a wall block, providing a decorative frame for your future paver installation. To ensure a secure and durable connection, it’s recommended to install a patio paving stone border using adhesive. This border will act as a barrier, preventing the paver stones from shifting or becoming misaligned. Furthermore, it’s advisable to lay a geo filter fabric over your concrete slab to inhibit weed growth and enhance drainage. A thin layer of sand should then be evenly spread over the filter fabric to create a smooth and stable bedding layer. Finally, carefully lay your chosen patio paving stones or slabs over the bedding layer, ensuring a level and cohesive arrangement.

Can You Put Pavers Next to Concrete?

Pavers are a versatile and durable option for improving outdoor spaces, and the good news is that they can be installed right next to existing concrete areas. Whether you’ve a patio, walkway, or driveway made of concrete, you can enhance it’s appearance and functionality by adding pavers.

Since the concrete surface is already in place, you don’t have to worry about excavating or removing anything.

You can create borders or patterns using different colors, sizes, and textures of pavers, which can make your area more visually appealing and personalized.

With the right paver installation, you can create a more slip-resistant surface than bare concrete. This is particularly useful for areas prone to moisture or where safety is a concern, such as pool decks or entryways.

It offers ease of installation, increased functionality, improved safety, and the opportunity to unleash your creativity by combining different paver designs.

Common Mistakes to Avoid When Installing Pavers Next to Concrete.

  • Not properly preparing the area before installation
  • Failure to create a solid and level base
  • Forgetting to lay a weed barrier
  • Not using edge restraints to secure the pavers
  • Incorrectly spacing the pavers
  • Using the wrong type of sand for joint filling
  • Not compacting the pavers after installation
  • Failure to properly seal the pavers
  • Ignoring drainage considerations
  • Not seeking professional guidance or assistance if needed

In this article, we will guide you through the process of laying a new patio on top of an existing one. By implementing the necessary measures and taking your time, you’ll be able to give your outdoor area a stunning makeover. Let’s delve into the key steps required for a successful project.

Can You Lay a Patio on Top of an Old One?

When considering laying a new patio on top of an old one, the most crucial step is to assess the condition of the existing slabs. If they’re cracked, uneven, or showing signs of significant wear, it’s advisable to remove and replace them entirely. However, if the slabs are still in good condition, it’s possible to proceed with the project.

To begin, thoroughly clean the old patio, removing any dirt, debris, and weeds. This can be done using a pressure washer or a stiff brush and soapy water. Once the surface is clean and dry, inspect it for any uneven areas or dips. These should be leveled out using a suitable filling material, such as sand or gravel, ensuring a smooth base for the new paving.

Next, determine the type and size of the new patio slabs you wish to lay. It’s important to choose pavers that are compatible in terms of thickness and design. Ensure that the combined height of the old and new slabs isn’t too high, as this may cause drainage issues or create a trip hazard.

Before laying the new slabs, it’s recommended to install a weed membrane to prevent weed growth between the old and new surfaces. This will help maintain the long-term appearance and durability of your patio. Additionally, consider applying a bonding agent or primer to improve the adhesion of the new slabs to the old ones.

By following these steps, you can successfully lay a new patio on top of an old one, transforming your outdoor space into a fresh and inviting area. With careful preparation and attention to detail, you can create a beautiful and durable patio that will withstand the test of time.

How to Choose Compatible Pavers for a Patio Overlay

  • Consider the style and design of your home and existing outdoor space.
  • Take into account the desired color scheme for your patio overlay.
  • Think about the size and shape of the pavers that will work best for your patio.
  • Evaluate the durability and quality of the different paver options.
  • Research the maintenance requirements for each type of paver.
  • Compare the cost of different paver materials and find one that fits your budget.
  • Consult with a professional to get advice and recommendations based on your specific needs.
  • Visit local suppliers or showrooms to see the pavers in person and get a better idea of how they’ll look.
  • Read reviews and testimonials from other homeowners who’ve used the pavers you’re considering.
  • Consider any additional features or accessories that may complement your chosen pavers, such as edging or decorative accents.

Source: How to Cover Old Paving Slabs (Easy Guide)

To securely attach pavers to a concrete slab, several essential steps must be followed. After the concrete has completely dried, border pavers are carefully affixed using mortar or construction adhesive. Subsequently, a layer of sand, one inch in thickness, is evenly distributed over the designated area where the pavers will be placed. This crucial step aids in efficient water drainage, preventing any potential damage to both the pavers and the underlying concrete slab.

How Do You Attach Pavers to a Concrete Slab?

To begin attaching pavers to a concrete slab, it’s important to wait until the concrete has dried completely. This ensures that the bond between the pavers and the concrete is strong and durable.

Firstly, border pavers are typically glued down using either mortar or a construction adhesive. Mortar is a mixture of cement, sand, and water that provides a strong, permanent bond between the pavers and the concrete slab. Construction adhesive, on the other hand, is a type of strong glue specifically designed for bonding materials together. Both options work effectively in attaching the border pavers securely to the concrete slab.

This layer of sand serves multiple purposes. One of the main purposes is to help drain water away from the pavers and off the concrete slab.

By following these steps, the pavers can be securely attached to the concrete slab, creating a beautiful and functional outdoor surface.

How to Properly Mix and Apply Mortar for Attaching Pavers

To properly mix and apply mortar for attaching pavers, you’ll need to follow a few steps. First, gather all the necessary materials and tools, including the mortar mix, a mixing container, water, a trowel, and a masonry brush. Next, pour the mortar mix into the mixing container and gradually add water, following the instructions on the packaging to achieve the right consistency. Mix the mortar thoroughly until it forms a smooth and lump-free paste. It should be sticky but not soupy. Once the mortar is ready, use the trowel to scoop up a generous amount and spread it on the surface where the pavers will be placed. Make sure to create a layer of uniform thickness. As you lay each paver, press it gently into the mortar bed, wiggle it slightly to ensure good adhesion, and level it with a mallet if needed. Repeat this process until all the pavers are in place, leaving a small gap between them for jointing. Finally, once the mortar has set, use the masonry brush to sweep dry mortar or sand into the joints to fill them completely. Brush off any excess material and lightly mist the surface with water to help the mortar cure properly.

One important consideration when putting pavers next to a foundation is to ensure proper drainage to prevent water seepage and potential damage to the foundation. Additionally, proper installation techniques and materials must be followed to maintain the integrity of both the pavers and the foundation. By taking these precautions, you can create an attractive and functional space while safeguarding your home.

Can I Put Pavers Next to Foundation?

First and foremost, it’s crucial to consider the slope of the area where you plan to install the pavers. If the ground slopes towards your foundation, it can cause water to pool against the foundation, leading to potential damage over time. Therefore, it’s essential to ensure proper drainage away from the foundation by creating a slight slope away from the house. This can be achieved by adding a layer of compacted gravel or sand underneath the pavers to create the necessary slope.

Another important factor to consider is the type of pavers you choose. Opt for permeable pavers that allow water to seep through, rather than non-permeable ones that can contribute to water pooling against the foundation. This will help prevent water damage and potential leakage issues.

Furthermore, make sure to install a proper border along the edge of the pavers to prevent them from shifting and potentially causing damage to the foundation. Options for borders include plastic or metal edging, concrete curbing, or even trenches filled with gravel.

Lastly, regularly inspect the area around the pavers and the foundation for any signs of water damage, such as moisture, mold, or cracks. If you notice any issues, it’s important to address them promptly to prevent further damage.

It’s crucial to maintain an appropriate gap between concrete and pavers to ensure their stability and longevity. The recommended space between pavers is typically 3 mm (⅛”). This gap allows for expansion and contraction, preventing any potential issues such as cracking or displacement of the paving stones. Adequate spacing also facilitates proper drainage and reduces the likelihood of tripping hazards.

How Much Gap Between Concrete and Pavers?

When it comes to the gap between concrete and pavers, it’s essential to consider the recommended space. Ideally, a gap of 3 mm (⅛”) is recommended for optimal performance and longevity of the installation. This space allows for minor movements and flexibility in the paver system, which can occur due to external factors such as temperature changes or ground settling.

Firstly, it allows for effective drainage of water, preventing pooling and potential damage to the pavers or the underlying concrete base. Proper drainage minimizes the risk of water infiltration and subsequent issues, such as erosion or freeze-thaw damage in colder climates.

These jointing materials help stabilize the pavers, reducing the potential for movement or displacement. They also contribute to the overall strength and integrity of the paved surface, making it more durable and resistant to wear and tear.

Ultimately, the gap between concrete and pavers plays a crucial role in the overall performance and longevity of the pavement. Careful consideration of the recommended space, as well as the specific requirements of the project, will ensure a durable and aesthetically pleasing outcome.

Types of Jointing Materials for Filling the Gap Between Concrete and Pavers

There are various types of jointing materials available for filling the gaps between concrete and pavers. These materials are used to enhance the stability and aesthetics of the paved surface by preventing weed growth, water infiltration, and the shifting of pavers. Some common options include polymeric sand, jointing sand, and mortar. Polymeric sand is a mixture of sand and special polymers that harden when exposed to moisture, creating a solid bond. Jointing sand consists of fine sand that’s brushed into the gaps and compacted. It provides support and flexibility while allowing water drainage. Mortar is a mixture of cement, sand, and water that’s used for larger gaps or to create a solid joint between pavers and concrete. Each type has it’s own advantages and characteristics, so selecting the appropriate jointing material depends on the specific project requirements and desired outcome.


Before beginning the process, it’s important to thoroughly inspect the existing concrete for any major damages. A thin layer of sand over the filter fabric provides a solid base for the patio paving stones or slabs. By following these steps, you can easily create a beautiful and durable patio area that seamlessly blends with your existing concrete slab.

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