Landscaping & Interlock FAQ


Got any questions about landscaping and interlock projects?  We do this all the time so topics like Ottawa by-laws, zoning are easy for us to answer.  If you have any other questions that we didn’t answer the drop us a line by email or just give us a call – we would love to hear from you. 

Are Estimates Free?

Yes!  When you call we will get some basic info from you like phone number, name, address and intended work.  We will schedule a time for our designer to come to your home and find out exactly what you want.  He then puts together a detailed and itemized invoice which explains the products used, services, and labour required to complete your project.  

Do You Charge For Designs?

Our designs are free if you choose to go ahead with the work.  A good design takes hours to plan and build.  Our FREE in-home consultation is 100% free and customized design catered to your project, ideas and budget.  Our reputation is stellar but we know there are many aspects for how a client chooses their contractor.  We think we should get to know each other before we agree to do business.

What Areas Do You Service?

We service all of Ottawa, Ontario for all its landscaping and interlock needs – and the surrounding areas that include:

  • Ottawa
  • Orleans
  • Kanata
  • Nepean
  • Rockland
  • Cumberland
  • Limoges
  • Kanata
  • Barrhaven

If your area isn’t on the list don’t worry!  Give us a call and we can let you know if we service your area. 

When Should We Begin Our Landscaping?

Start right away!  It takes time to make a design, have it reviewed, and then revise that design.  Also we are often booked for other jobs well in advance.  We are limited by the Ottawa weather as to when we can begin the job but we can do designs and consulting at any time!  We off that service for free so give us a call today.

How Much Should I Spend On Landscaping?

We know the budget is extremely important to our customers.  We can meet with you and customize a project that has an accurate and highly detailed budget.  Each job is completely unique and prices are only limited by your imagination.  We have links to what we offer and the work in our portfolio. We hope that we can give you some ideas for your landscaping project.

What Are Interlocking Pavers?

Paving stones – referred to as pavers – are made out of precast concrete. They are strong and durable, which makes them ideal for pathways or driveways. They are a very popular product in Ottawa and can be seen in popular areas like Sparks Street and the ByWard Market.

How Do Interlocking Pavers Work

A foundation is excavated with a depth of 8-12”.  Interlocking pavers are placed on levelled sand. Every paving stone has an edge restraint made of concrete or stone. Pavers are set in place and then compacted together. For the interlocking to be achieved, masonry sand is applied to the joints three or four times and compacted. No setting is required and allows that the concrete paving stones can be driven or walked on immediately after they are put in place.

Will Weeds Grow Between Pavers?

Sealing pavers with polymeric sand prevents the likelihood of weeds growing from the spaces between the pavers. 

What Causes The White Stains On Interlock?

In Ottawa, the white residue is known as efflorescence and is the result of too much water in your foundation.  This is usually a result of a poor installation and we can repair these issues by removing and replacing the old material.

Can I Use Rock Salt On My Pavers?

During the Ottawa winter salt is a requirement to keep surfaces ice and slip-free.  You can use salt on pavers without any damage however too much can result in corrosion over time.  For residential uses salt shouldn’t damage your interlock. 

Should I Seal My Pavers?

Absolutely! If completed shortly after your project is installed it is a quick and easy process.  Sealing pavers prevent stains from grease and other spills and protects the surface from weathering conditions. 

What Is Polymeric Sand?

Polymeric sand is composed of graded sand and binding agent. Polymeric sand is designed for use in interlocking pavers and is only applied when the weather is dry. It is resistant to weeds and insects after it has been cured.

How Much Is A Interlock Project?

It’s hard to give an exact answer to this question, each project being different in size and materials used.  It is best you give us a call and we can discuss the options you want and give you a better understanding of the labour and materials involved. Or take advantage of our FREE in-home consultation. 

How Long Does It Take To Build?

Usually, an average size patio can be built in 2-3 days, but depending on the complexity this can vary.  Access to the work area (front vs. back yard can change installation times). 

Why Is The Patio Not Flush With The Door?

 The four-inch drop will prevent water from getting into the house when the snow melts.  Also during rainy days, you want the water to flow away from your door.  Often times your home has vents which allow water to exit your walls – covering these will wreck your interlock through efflorescence. 

What Are Water Permeable Pavers?

We have an entire page explaining that technology (link below).  In a sentence, they are pavers with a special foundation that allows water to flow into the ground. 

Water Permeable Pavers Explained

Got More Questions? Give Us A Call Today

Contact Us

Fill in the form and we will get in touch with you. Questions, comments and landscape inquiries are always welcomed and we try to respond as fast as possible. For immediate assistance call our customer service phone number or email us directly.

(613) 219-9862


I am:(Required)


A&Z Interlock provides professional landscape construction and design services to residential homeowners in the Ottawa Ontario area. Watch your home transformed as we turn your yard into the patio you always dreamed of. Since 2005 Ottawa landscaping clients have been delighted with our service, warranty, and after-sales care.
Book your next renovation with Ottawa's premier landscape contractor today.

Privacy Policy

A&Z Interlock Design and Build BBB Business Review

Contact Us

A&Z Interlock Design & Build
2014 Calypso Street
Ottawa, Ontario

(613) 219-9862