Basement Remodeling in Cornwall, Ontario
- 3-Year Warranty
- Fixed-Price Quotes
- Free Consultation
- Financing Available
- 3-Year Warranty
- Fixed-Price Quotes
- Free Consultation
- Financing Available
Services
Transform Your Basement Into a Functional Living Space in Cornwall, ON
We’ve been finishing and renovating basements in Cornwall, ON since 2017. Every project starts with an in-home visit where we look at your property, check for moisture, assess the layout, and talk through what kind of space you want it to become. Then we create a plan around your needs so the finished basement fits your family, not just a generic template. All work complies with Ontario building codes, and our basement remodel contractor keeps you updated at every stage so you always know what is happening.
Services
Basement Renovation & Finishing Services in Cornwall, ON
We turn bare concrete into a clean, comfortable living area you actually want to use.
Update layouts and finishes when your current setup no longer works for your family.
Add a bathroom downstairs to make daily life and hosting guests easier.
Address cracks and various structural issues before they become bigger problems.
Add outlets and better lighting so the basement feels bright and truly usable.
Set up lines for a bathroom, bar, laundry, or utility sink to make the space more practical.
Install finishes made for basement conditions that still look good and last.
Help keep the space dry and protect it from damp areas and mold.
Services
Custom Basement Remodeling to Your Lifestyle
- All our basement renovation services start with how you want to use the space, for example, a family room, rental suite, home office, gym, a mix of a few options, or something else you have in mind. We plan clear zones for relaxing, working, storage, and moving around, so the basement feels open and straightforward rather than cramped and dull.
- The look can be modern, cozy, luxurious, or focused on entertainment, and we continually shape it to fit your home’s layout and your daily life. Your basement is remodeled around your life and needs, not the other way around.
Process
Our Basement Remodeling Process
Our basement renovation is organized and straightforward. You get regular updates at each stage and a final walkthrough to ensure the new basement fits your needs and preferences.
We start with a conversation and an in-home visit. We look at your basement as it is now, including ceiling height, layout, moisture spots, stairs, and entry points, and talk about what you want it to become. We carefully measure the space, discuss the budget and timing, and point out any code or safety issues. By the end, you have a clear idea of what is realistic and what can be done next.
This is where your basement starts to take shape on paper. We plan where each zone will go and make sure everything works well together. Then we help you choose flooring, wall finishes, doors, trim, and other details that match your preferences and budget. When this step is done, you can clearly picture how the basement will look and feel once the work is finished.
At this stage, we ensure your basement has a strong foundation. We look for cracks, leaks, and damp spots, then repair and reinforce what needs attention. We also handle waterproofing, which may include drainage work, sealants, vapor barriers, or a sump pump if the space needs one. We make your basement dry and stable so it’s ready for framing, insulation, and active use.
We stay in close touch throughout the work and meet with you on-site for regular check-ins. These walkthroughs give you a chance to see the progress, ask questions, and flag anything you would like us to review.
This is when the basement finally starts to feel like a real living space. Our crew frames the walls, runs electrical and plumbing, adds insulation, and then installs drywall, doors, and trim. After that, we complete flooring, painting, lighting, and any built-ins you selected. We handle touch-ups and cleanup so you walk into a finished basement ready to use right away. If you have any questions or concerns, we’ll address them, too.
About us
Meet Our Team
Why Us
Why Homeowners in Cornwall Trust Us With Basement Renovations
Basement remodeling can change how you use your whole house, so you need a basement contractor that maintains high standards and meets your expectations. Millennial Contracting has been serving Cornwall and SD&G since 2017 — locally owned, not a franchise. Matthew Daigle and his team pay close attention to structure and moisture, follow Ontario building codes, and keep you updated at every stage so you always know what is happening in your basement. Our work has earned us 6× Best of Houzz and 9× CommunityVotes Cornwall — recognition that comes from delivering on what we promise. We’re a local Cornwall basement contractor — not a call centre. When you call, you speak directly with Matthew or Shawn.
We do more than just basement renovations. Many Cornwall homeowners hire us for a basement remodel and later bring us back for a kitchen renovation, a bathroom remodel, or as their home addition contractor — because they like working with one local crew they already trust. If you’re considering finishing or reworking your basement, reach out and tell us what you have in mind. We’ll discuss options, timing, and budget in plain language. No pressure, no vague answers.
Millennial Contracting has partnered with 
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.
FAQ
Frequently Asked Questions
How to start remodeling a basement?
The first step in basement remodeling is evaluating the space and defining how you want to use it — a family room, home office, guest suite, or rental unit. Next comes planning the layout, setting a budget, and checking local building requirements. In Cornwall, Ontario, permits are issued through the City of Cornwall Building Division, and most basement finishing projects that include electrical, plumbing, or structural changes require one. Working with an experienced local basement contractor early helps identify structural, moisture, insulation, and ceiling height considerations before the basement remodel begins — and ensures nothing gets missed on the permit side.
How much does remodeling basement cost?
Basement renovation in Cornwall typically runs $25,000–$50,000 for a basic finish, $50,000–$100,000 for a mid-range project with a bathroom, and $100,000+ for a full legal suite. Size, condition of the existing space, and whether plumbing or electrical upgrades are needed all affect the final number. See our detailed basement renovation cost guide for a full breakdown, or contact us for a site-specific estimate.
How long does a basement renovation take?
The timeline for a basement renovation varies based on project complexity. A straightforward basement remodeling project may take several weeks, while more advanced renovations involving structural changes, plumbing, or custom finishes can take longer. Factors such as inspections, material availability, and unforeseen conditions may also impact the schedule. An experienced basement contractor will outline a clear timeline before work begins.
How to remodel basement?
To remodel a basement successfully, start with a functional design that accounts for lighting, ventilation, insulation, and moisture control. The process typically includes framing, electrical and plumbing work, drywall installation, flooring, and final finishes. Hiring a qualified basement remodel contractor in Cornwall, Ontario ensures the basement remodeling project meets local codes, maximizes usable space, and delivers long-term value.
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