Home Renovations
home additions & extensions in st. thomas, ON and surrounding areas
expand YOUR LIVING SPACE, ELEVATE YOUR LIFESTYLE.
From larger kitchens to sunrooms and in-law suites, MD Construction creates seamless additions designed around your needs. With craftsmanship you can trust and guidance every step of the way, we make expanding your home simple, functional, and built to last.
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A+ Rating
4.8 Rating
More Space.
Same Home You Love.
Every addition should feel like it belongs. At MD Construction, we design extensions that integrate seamlessly with your existing home while giving you the space you’ve been missing.
Proven Process
Our streamlined process keeps your project on time, on budget, and stress-free. From permits to final finishes, we handle every detail—so you can feel confident every step of the way.
Step one
Discovery & Estimate
We begin by understanding your goals, budget, and vision. You’ll receive a clear, detailed estimate—no surprises, just a solid foundation for your project.
Step two
Design & Planning
Our team works with you to finalize layouts, select materials, and coordinate any permits or approvals, ensuring everything is ready to go.
Step three
Build & Execute
We manage the construction from start to finish—coordinating trades, keeping you informed, and ensuring every detail meets our high standards.
step four
Project Completion
Once the work is complete, we’ll walk through it together to make sure everything exceeds your expectations. Your satisfaction is our final step.
Don’t Move Out. Build Out.
Moving comes with stress, costs, and trade-offs. Expanding your home gives you the space you need without leaving the place you’ve already made your own. With the right addition, you can avoid the hassle of uprooting your family, changing neighbourhoods, or settling for a house that doesn’t feel like home.
A well-planned home addition means more comfort for your family today, greater flexibility for the future, and lasting value for your investment. Whether it’s creating room to gather, adding privacy, or simply making everyday life more functional, expanding your home is a decision that pays off for years to come.
Recent Projects
What Our Clients Say
Proudly Serving St. Thomas, ON and Surrounding Areas
MD Construction is proud to call Port Stanley home—serving clients across St. Thomas, London, and the surrounding region. With local roots and a commitment to quality, we deliver dependable craftsmanship wherever your project takes us.
St. Thomas
Port stanley
aylmer
glencoe
Shedden
iona
dutton
rodney
west lorne
If you’re nearby but don’t see your town listed, reach out—we likely serve your area too.
Frequently Asked Questions
Still have questions? Get in touch.
We handle a wide range of home additions, including second-storey extensions, garages, sunrooms, in-law suites, and expanded kitchens or dining rooms. Every project is custom-designed to fit your lifestyle and your existing home.
Yes — most additions and extensions require permits to meet Ontario’s building codes. MD Construction takes care of the permitting process for you, ensuring your project is compliant, safe, and built to last.
The timeline depends on the size and complexity of the addition. Smaller extensions may take a few weeks, while larger second-storey builds or in-law suites can take several months. We’ll provide a clear schedule so you know exactly what to expect.
Absolutely. A successful addition should look like it’s always been part of your home. We carefully match exterior materials, roofing, siding, and interior finishes so the new space flows seamlessly.
A well-designed addition typically increases both usable space and resale value. Extra bedrooms, bathrooms, or in-law suites are especially attractive to buyers. Beyond market value, additions improve your everyday comfort and flexibility. For more ideas on return-on-investment projects, explore our MD Journal.
In most cases, you can remain in your home while the addition is being built. Depending on the scope—such as second-storey additions or major structural work—temporary relocation may be recommended for comfort and safety. We’ll review this during your consultation and plan the project to minimize disruption as much as possible.
MD Journal
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