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.
What This Includes
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.
Seamless home extensions and second-storey builds
Custom garages and workshops
Sunrooms and three-season rooms
In-law suites and private living spaces
Kitchen and dining room expansions
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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.
If you're nearby but don't see your town listed, reach out—we likely serve your area too.
Why It Matters
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
Recent Projects
Home Renovations
Hill
New Construction
East
What Our Clients Say
What Our Clients Say
Our reputation has been built one project, one family, and one business at a time. Explore client reviews and see why MD Construction is a trusted name in home and commercial construction across St. Thomas and surrounding areas.
“MD replaced a window that I'd been wanting done for a while. The service was great, the installers were fantastic, and the clean up was perfect. Shelby kept me informed and everyone was professional in every way.”
Vicki Whaley Erskine
Window Replacement
“We hired MD to build a 4 season sunroom and were very happy with the result. Tom and Jocelyn were easy to work with, the crew was friendly and knowledgeable, and the whole process moved smoothly.”
J Young
Four-Season Sunroom
“MD renovated our kitchen, living room, and entryway. Tom and his team did flawless work, and Jocelyn was amazing with materials, fixtures, and colours. We'd recommend them for any project.”
Glen Somerville
Kitchen and Living Renovation
Service Area
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. ThomasPort StanleyAylmerGlencoeSheddenIonaDuttonRodneyWest Lorne
If you're nearby but don't see your town listed, reach out —we likely serve your area too.
Frequently Asked Questions
Frequently Asked Questions
Still have questions? Get in touch.
What types of home additions do you build?
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.
Do I need a permit for an addition or extension?
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.
How long does a typical addition project take?
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.
Can you match my home’s existing style and finishes?
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.
How much value will an addition add to my home?
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.
Will I need to move out of my home during construction?
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
MD Journal
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