Custom Deck Builder & Contractors in Cornwall, Ontario

Millennial Contracting > Custom Deck Builder & Contractors in Cornwall, Ontario
deck installation

Services

Transform Your Outdoor Space with Expert Deck Installation

A good deck makes your backyard feel like an extra room. It can become a good place to relax after work, grill dinner, and just have fun outside. It also adds usable space, improves your home’s appeal, and can increase your home’s value when built right.

But a deck isn’t just about looks. It needs to be strong, safe, and able to handle Canadian weather. That’s why homeowners in Cornwall, ON, turn to experienced deck contractors who know how to get the job done right the first time.

deck designer

Why Us

Our Deck Contractors Services

We help homeowners with deck projects of all sizes, so you can get exactly what you need. Our deck contractors handle new deck design and construction from scratch, as well as deck installation, repairs, and full deck replacement.

Custom Deck Design & Construction

Our deck designer creates your deck from the ground up, start to finish. But we don’t create a “custom” plan just to call it custom. We work with you to understand how you want to use the space, what you like visually, and what makes sense for your home. The result is a deck that looks right, feels comfortable, and is built for you. Our design is created with your feedback in mind, and we start building only after your approval. 

Deck Replacement & Resurfacing

If you don’t need a brand-new deck from scratch, our deck contractors can work with what you already have. We can replace your deck entirely, designing and building a new one that fits your home. Or, if the frame is still in good shape and you’re happy with the layout, we can provide deck resurfacing for the existing deck to make it look new without replacing it entirely.

TESTIMONIALS

Our Clients Say

google logo

Excellent

4.9

44 reviews

Posted on Google Google
Travis Seymour profile picture
Travis Seymour
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
We recently hired Millennial Contracting to help us install a patio upgrade for our house. They did a great job as project manager, they were able to source excellent subcontractors and we are happy with the end result.
Posted on Google Google
Allie Ford profile picture
Allie Ford
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
We had our Master Bathroom shower redone and are very pleased. We live in Cornwall. The whole Millennial Team were exceptional which made the transition very easy on us.
Posted on Google Google
Brandy Przepiora profile picture
Brandy Przepiora
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
When I discovered that the wall-to-wall carpeting in my house was hiding the most gorgeous hardwood floors, I knew I had to have them restored to their original mid-century beauty. I shopped around for a contractor, but I pretty much knew right when I met him that Matthew & his team were the right guys for the job: he saw my vision, had a “can-do” attitude, came in with the most competitive estimate, & then started two weeks later. The crew are fantastic: knowledgeable, hard-working, quick-thinking, polite & funny, clean, & respectful. As if that’s not enough, just as they were wrapping up my flooring job, I discovered a leak in the roof of my garage - once again, Millennial to the rescue, with a fair estimate for a thorough solution, and fixed only two days later. I doubt I’ll ever go anywhere else for any future repairs or renos. I’m very, very happy with the work & service the Millennial guys provided. (Before & after photos of my floors below!)
Posted on Google Google
That Random Guy profile picture
That Random Guy
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Matt and his team finished a complete bathroom reno in Lancaster last week and did a terrific job. The design solved all of the issues and it feels much bigger, brighter with more storage space. I would definitely work with his team again.
Posted on Google Google
Lee Montford profile picture
Lee Montford
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
We just had a bathroom/laundry room reno. This was our first time using a contractor. We are very pleased with our new space. Matt, Shawn, Zoe and the team was excellent, very professional and polite. It is clear that they take pride in their work. Happy to recommend.
Posted on Google Google
Kim Jarvis profile picture
Kim Jarvis
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
We contacted Millennial Contracting regarding a small basement bathroom renovation. We first spoke to Zoe on the phone and she asked what exactly we were looking for so that Matt knew what we wanted before he even came to give us an estimate. Matt was very professional and had great ideas on how to achieve what we were looking for. We signed a 6 week contract, which was started within 2 weeks of signing, and they were done within 5.5 weeks. Matt's team was on time, friendly, professional, hard working, and always had time to answer any questions we might have. The site was left tidy every night. Paper was laid to protect our floors and plastic was hung to try to minimize the dust throughout the rest of the house. The project manager Shawn was on top of everything and went above and beyond to fix an oversight. The plumbing and electrical subcontractors were also very professional. We would not hesitate to recommend Millennial Contracting to anyone, and would definitely hire them again.
Posted on Google Google
Megan Quinn profile picture
Megan Quinn
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
We hired Millenial Contracting to remodel our main bathroom and add a laundry room on the upper level of our home. We are very happy with the outcome! The process went smoothly and the final product truly impressed. We will be hiring them again to renovate our main floor.
Posted on Google Google
Alpha Ross profile picture
Alpha Ross
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Millennial Contractors were professional, friendly, courteous, and knowledgeable throughout the laundry room refinishing and house siding jobs. Their work is excellent, and we recommend them for any jobs of this nature.
Posted on Google Google
JoAnn Hickley profile picture
JoAnn Hickley
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
My experience with contractors was a nightmare: they wouldn’t give me a straight answer and never returned phone calls. Millennial contracting returned my call promptly, made an appointment with me right away to discuss options and provided a quick appraisal quote. The following spring they promptly started the work. They were very professional.
Posted on Google Google
Kim Ivens profile picture
Kim Ivens
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Recently did a garage reno and was very happy with everything right from the day of the estimate to the end of the build. They were thorough with the estimate and the pricing never changed. The workers were here everyday ready to go and cleaned up at the end of the day. Any questions i had were answered or directed to someone who could. I would definitely recommend them to anyone doing a reno and will keep them in mind on any future renos we decide to do.

Why Us

Premium Materials for Every Budget

To suit homes and budgets all across Cornwall, ON, we build custom decks in both composite and wood materials. Composite is a durable blend of wood and plastic, while wood is an option for everyone who likes classics. We’ll help you choose the right material for your home. 

Composite Deck Installation

Compositedeck installation starts with a frame. Then our deck contractors install the boards with the right spacing, keep everything straight, and fasten it down cleanly (often with hidden fasteners) so you don’t see a bunch of screws. If you need stairs, railings, or trim boards, we build and install those, too, so the deck looks cohesive. You end up with a low-maintenance deck that doesn’t need staining and holds up well over time.

Wood Deck Construction: Pressure Treated & Cedar

For wood deck construction, we use pressure-treated lumber for the frame because it’s strong and can handle moisture and insects. For the surface, many homeowners choose cedar because it looks warm and resists rot well. Cedar also takes stain and other finishes easily. We make sure the structure is properly supported and fastened, then install boards, steps, and railings with clean lines and proper spacing. With basic upkeep, wood decks can last for many years in Ontario.

deck contractors near me

Home renovations can come when you least expect them.

As a family, we understand that you can’t always afford to pay for large expenses to your home when you need them the most.

Financing may be a better option for your next home renovation.

deck contractors

Why Us

Why We Are the Best Deck Building Contractors Near You

If you want a solid deck, you first need to find a solid team in Cornwall, ON. That’s what we focus on. We keep the process clear, we build it right, and we treat you and your home with respect.

  • We listen and create a clear plan.
  • We build strong frames and install boards properly.
  • We keep the site clean and the job organized.
  • We give you real options that fit your budget.
  • We finish the details, so it looks cohesive. 
  • No hidden fees. 

If you’re also thinking about pergolas and gazebos, a sunroom addition, shed construction, or a screened-in porch, we can help with that, too. Reach out, and we’ll discuss options and decide on the best next step.

FAQ

Frequently Asked Questions

How Much Does Deck Installation Cost

The cost typically ranges from $40 to $80 per square foot, varying widely depending on whether you choose pressure-treated wood, cedar, or premium composite materials. Additional factors like site preparation, permit fees, and custom features such as railings or built-in lighting will also influence the final budget. Millennial Contracting Inc. provides transparent, itemized quotes to ensure you get the best possible value for your outdoor investment in Cornwall.

Deck resurfacing involves replacing the visible deck boards, railings, and stairs while keeping the existing structural frame and footing system intact. This process is a cost-effective alternative to a complete rebuild, provided the underlying structure is sound and rot-free. Millennial Contracting Inc. can inspect your current framing to determine if resurfacing is a safe and viable option for rejuvenating your backyard space.

In most cases, yes; the City of Cornwall typically requires a building permit if the deck is more than 24 inches above the ground or if it is physically attached to your home. Building without a permit can result in costly fines and issues with future property sales. Millennial Contracting Inc. handles the entire permit application process, ensuring your new deck is fully compliant with all local zoning and safety bylaws.

Composite decking generally offers superior durability and requires significantly less maintenance than wood, as it resists rot, fading, and insect damage without the need for annual staining. However, pressure-treated wood remains a popular choice due to its lower upfront cost and natural aesthetic appeal. Millennial Contracting Inc. will walk you through the pros and cons of each material to help you choose the best option for your budget and lifestyle.

A well-maintained pressure-treated wood deck typically lasts 15 to 20 years, whereas high-quality composite decks can last 25 years or more, even with the freeze-thaw cycles typical of Ontario winters. The longevity of any deck depends heavily on the quality of the installation and regular maintenance. Millennial Contracting Inc. utilizes construction techniques specifically designed to withstand our local weather conditions, such as using proper frost-depth footings (like helical piles) to prevent heaving.

Absolutely, custom features like privacy screens, built-in benches, and planter boxes are excellent ways to enhance both the functionality and style of your deck. These additions can be designed to match your decking material perfectly, creating a cohesive outdoor living area. Millennial Contracting Inc. specializes in custom carpentry and can integrate these unique elements seamlessly into your deck design.

Millennial Contracting Inc. is a locally owned, owner-led deck builder based in Cornwall, ON. We handle custom deck design, construction, and resurfacing with fixed-price quotes, a 3-year warranty, and no hidden fees, so Cornwall homeowners get a deck built right the first time.

Contact us

Get in Touch With Our Custom Deck Experts

A custom deck is the perfect solution to extend your living space outdoors, providing a comfortable area to relax, entertain, and enjoy your backyard. Whether you need a spacious wraparound deck, a multi-level structure, or a simple platform for grilling, our team specializes in designing and building decks that seamlessly blend with your home’s exterior. If you are ready to upgrade your outdoor living area, reach out to our experts and let us help you bring your vision to life.

Do you have a project in mind, a question, or simply want to chat?

Reach out to us! We’re excited to help turn your ideas into reality.

*” indicates required fields