Our Story
Our Story
Mississagua Decks & Trim is the result of a wealth of experience in woodworking, from finish carpentry to deck building. Created in 2016, it is the manifestation of the goals of John Morrissey, who originally hails from Clonmel, a small town in Tipperary, Ireland, a place that instilled a strong sense of community in him. Years later, his custom outdoor living space and deck installation business offers up the perfect combination of his and his team’s knowledge and skill, delivered with that same sense of community.
The story of Mississagua Decks & Trim began long before 2016, with the story of John’s own initial foray into and subsequent journey with woodworking. In his high school years, he was drawn to the craft, enrolling in a year-long pre-apprentice class, fascinated by what could be created out of an ordinary piece of wood. In 2003 at the age of 19, he was taken under the wing of a local builder as an apprentice carpenter. Under the guiding and highly demanding hand of this skilled tradesman, John learned the value of doing things correctly from the start. His mentor showed him that flawless work is the standard and not the exception. Long after his apprenticeship was over he stayed on and would continue to learn from his employer for five more years to these same exacting standards, a quality he would later make the foundation of Mississagua Decks & Trim.
In 2008 he started his own business in Ireland, generating an excellent reputation for his skill and attention to detail. However, in 2011, his sense of adventure drove him to set out for Canada. Here he started work as a decking contractor.




The very first two decks he worked on set the tone for his future approach to offering custom and unique design capabilities to clients. These decks were custom made from Ipe and Jatoba, dense exotic hardwoods, which makes them difficult to work with, and started his journey in Canada on an inspirational footing. The design included unique features like a hexagon-shaped deck platform and a triangular pergola, providing a thrilling yet satisfying challenge. The density of these woods makes them extremely durable and long-wearing offering outstanding longevity to the project. Mississagua Decks & Trim continues to incorporate them in the variety of decking materials they work with today, which also includes other exotic hardwoods such as Garapa, heat-treated Ash, PVC, Composites, and Cedar.
After a stint of union jobs utilizing his skills as a finish carpenter, it was in 2016, on receiving his citizenship, that John decided the time was right to once again establish his own business. During this time he met the woman he knew he would marry, and together they now have four beautiful children, reinforcing the powerful idea of all a sense of ‘home’ can mean. He also continued playing the team sports he enjoyed during his childhood, and still plays golf to this day. From these influences derived from both his professional and personal life, John knew he wanted to build a company that recognized the strength of collaborative effort. This includes a commitment to community, recognition of individuality, and an expectation of delivering nothing but the best, which always starts with honesty and transparency.
Mississagua Decks & Trim sought and gathered a team of skilled builders. This assembled team of expert craftsmen offers over 60 years of combined experience and noted attention to detail, with every aspect of that brought to each project undertaken by the company. An initial consultation is done for every outdoor living space crafted by Mississagua Decks & Trim and is only the beginning step of a personalized approach, which is carried through every phase of the project, from design to permits and down to each finishing detail. The mandate of the team also includes ensuring that the client has confidence in the journey from start to finish about their property development and enhancements. Each project team consists of a Lead and Assistant Carpenter who can work both independently and collectively depending on the size of the job. However, the expertise of the entire company is behind every project it undertakes.
John’s own initial career as a finish carpenter comes through in the impeccable detail of the end result. Beyond decks, the company grew to offer more tailored enhanced outdoor living space options, continuously inviting ideas from the clients themselves from any source of inspiration, whether it is from a magazine or their own imagination. The company includes landscaping designs, play areas like custom-built sandboxes and at-home basketball practice courts, as well as a variety of garden accents, privacy screens, railings, and a multitude of other elements to turn your outdoor areas into the personal oasis you’ve always dreamt of.
Mississagua Decks & Trim approaches every job with the belief that strong values and quality work should always be the guiding principle. They believe in honesty, transparency, clear communication, and always exceeding each and every client’s expectations.
“My personal belief will always be to offer the best service and the highest quality product that the client deserves, and that belief will be demonstrated through every piece of wood we touch.”
- John Morrisey
From Where we came from?
We like helping them seize
Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classica

Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry’s standard dummy text ever since the 1500s, when an unknown printer
Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classica

Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry’s standard dummy text ever since the 1500s, when an unknown printer
Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classica

Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry’s standard dummy text ever since the 1500s, when an unknown printer
Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classica

Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry’s standard dummy text ever since the 1500s, when an unknown printer
Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classica

Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry’s standard dummy text ever since the 1500s, when an unknown printer
Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classica

Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry’s standard dummy text ever since the 1500s, when an unknown printer
Frequently Asked Questions
If you have any further questions please contact
-
My backyard is a bit of an embarrassment! What can you do?
We can do anything you want. We specialize in high-end custom decks and outdoor living solutions while offering a wide variety of materials including exotic hardwoods such as Ipe, Garapa, heat-treated Ash, PVC, composites and Cedar. Flip through a magazine, look online – send us pictures of what you want your space to look like, and we can book a consultation to discuss.
-
Are you licensed and insured?
Yes, we are licensed master carpenters. We have public liability insurance up to $2,000,000 and have good standing WSIB insurance.
-
We don’t have much property but our house is on high ground. Is it possible to build a high deck that allows the use of the space underneath it?
Yes again! Our premium-level custom-made rubber membrane waterproofing systems will ensure that area stays dry. This enables you to maximize your living space, watch TV and relax outdoors no matter what the weather throws at you.
-
How big is your operation?
Our teams, each of which consists of a Lead and Assistant Carpenter can work both independently and collectively depending on the size of the job. Each team aims for the same high standard and quality of workmanship. The Lead Carpenter is empowered to address any questions or concerns you may have throughout the project. Our team of carpenters has a combined 60 years of experience creating outstanding outdoor living spaces.
Testimonials
Featured clients success stories
John and his crew did an incredible job building our new deck. The deck is almost 800 sq ft, and has 2 privacy screens and a large pergola in the middle. John is meticulous in his detail. Every cut is sealed. No end cuts are exposed. End cuts are all...
Wayne
We are very happy with the deck that John and his team built for us. Right from the beginning John was very professional and pleasant to work with. He provided timely responses to all our questions and offered invaluable design input. John’s expertise as a carpenter was readily apparent in...
Linda McRae
John and his team completed our deck recently. John, Art, and Lenny did a fantastic job. Starting work on time, working hard during extreme heat. The project was kept on budget and everything was professionally done with care and attention to detail. Thank you, John, for building our dream deck....
Bozenna Jarchowski
We hired John again to tackle our trim and baseboards installation. He had done such a good job with our sunroom and bathroom trim. We recently had him in for the kitchen reno. He is always attending to detail and reapplied our trim carefully. He was able to manufacture windowsills...
Barbara, Toronto
John and his crew did an absolutely amazing job rebuilding our 3 level backyard deck!! Our existing 25-year-old deck had to be completely torn down and a new deck installed including new posts etc. Despite the early snow in November, John and his team worked tirelessly to complete the job...
Linda, Oakville
John’s team at Mississauga Decks did a great job on our rooftop deck and front stairs. They were reliable and professional. Work was done on time and at a reasonable cost. I would definitely use them again!...
Ilanak, Toronto