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Community Contacts
Stittsville, Blackstone
Barrhaven, Half Moon Bay
Rockcliffe, 360 Condos By Mattamy
Kanata, Connections In Kanata
Rockcliffe, Wateridge Village
Barrhaven, Promenade
Orléans, Summerside
Design Studio Contacts
Corporate Contacts
Homeowner Support
Ottawa, ON
Homeowner Support
Community Contacts

Contact our communities for support

After Hours Emergency Support

After Hours Emergency Support

Your Warranty Service Office is pleased to assist you with all your concerns during regular business hours, but we are also available to you throughout the evening in case you experience the following:

  • Complete loss of heat
  • Complete loss of electricity
  • Water penetration into the home
  • Major Plumbing Leak 
  • ** Gas Leak - Call Enbridge directly at 1-866-763-5427 as well as calling 9-1-1

Your call or email will go to a Mattamy representative who will contact you within one hour. We will attempt to have the original contractor correct the problem. Or, if the original contractor is unavailable, we will offer alternative solutions and guide you through the necessary steps to contend with the emergency until we can address it during the next business day.

Any item not noted above would not be considered an emergency.

After Hours Emergency

Toll Free 1-877-MATTAMY (628-8269) 

  • 5:00 PM to 10:00 PM - Weekday evenings
  • 9:00 AM to 5:00 PM - Weekends and Holidays

Warranty Coverage

Homes built in Ontario are protected under the Ontario New Home Warranty Plan Act, administered through Tarion Warranty Corporation. Here you will find a summary of your new home warranty coverage; you can find further information in your Tarion Homeowner Information Package or online at

View Warranty Coverage Information

1st Year Warranty Coverage

Mattamy warrants your home against defects in workmanship and material for a period of ONE YEAR starting on your Closing Day. You will have 2 formal opportunities to request Warranty Service in your first year of occupancy:

  • At your 30-Day anniversary
  • At your Year-End anniversary 

At these anniversary points, simply complete the applicable Warranty Service form from Tarion's myHome portal;; completing the form online will provide both Mattamy and Tarion with a copy of your list.

Please be aware, all service appointments are scheduled during regular business hours. If you are unable to be home during the appointment, you may leave us a key to provide access.

Tarion provides the builder a 120 day period to resolve item listed on your form. If you are not satisfied with the condition of a repair following service, please contact your Warranty Service Office and we will gladly review the repair of the item.

2nd Year Warranty Coverage

Mattamy warrants the following items against defects in workmanship and material for a period of TWO YEARS starting on your Possession Day:

  • Plumbing system
  • Heating system
  • Electrical distribution systems
  • Exterior Water penetration (leaks)
  • Exterior cladding
  • Major structural defects

If you experience a problem with any of the above-noted items during your first two years of occupancy, please report it to your Warranty Service Office immediately, as these are generally considered to be urgent repairs.

7-Year Warranty Coverage

Your home is protected under warranty against Major Structural Defects (MSDs) for a period of SEVEN YEARS from your Closing Day. A Major Structural Defect is defined by the Ontario New Home Warranties Plan Act as:

“Any defect in materials or work that results in the failure of a load-bearing part of the home structure, or any defect in materials or work that significantly and adversely affects the use of the building as a home.”


To make a claim for a Major Structural Defect after the first 2 years, complete an MSD Warranty form from Tarion’s MyHome portal 

For any further questions or information about your warranty coverage please contact your Community Warranty Service Office or visit

Seasonal Checklists

Use these maintenance checklists to help keep your home safe and sound.


Autumn Checklist

Download PDF

Spring Checklist

Download PDF

Summer Checklist

Download PDF

Winter Checklist

Download PDF

Learn About Your New Home

Let us help guide you through the steps of Mattamy home ownership.


Welcome Brochure

Download PDF

About Your Home

Download PDF

Building Process

Download PDF

Driveway Paving

Download PDF

Fences and Landscaping

Download PDF

Hardwood Home Care

Download PDF

Humidity & Condensation

Download PDF

Your New Lawn

Download PDF

Mattamy U Reference Guide

Download PDF

What to Expect

Download PDF

Warranty Request

To request warranty service:

  • Complete your 30-Day / Year-End Form
  • Submit your completed form to your Warranty Service Office and Tarion*
  • Mattamy will schedule your service appointments 

*Note: Tarion requires you to submit your form prior to your anniversary date. Forms can be found in your PDI Package or online at

Tarion Forms
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