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Top general Contractor in st. thomas, ON

Home Renovations and Commercial Construction 
Since 1987

For over 35 years, MD Construction has delivered expert craftsmanship and reliable service. Whether you’re renovating your home or upgrading a commercial space, we bring your vision to life—on time and on budget.

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A+ Rating

4.8 Rating

Our Services

From renovations and exteriors to full additions and commercial build-outs, we bring expert craftsmanship and dependable service to every project.

Modern kitchen interior completed by general contractor MD Construction as part of their home renovations services.

Home Renovations

Bring your vision to life with full-service home renovation and upgrades that blend quality craftsmanship and functional design.

Home additions and extensions project under construction by MD Construction showing new exterior framing.

Additions & Extensions

Expand your home with seamless additions—sunrooms, garages, and full-room extensions—built to match your space and growing needs.

Exterior upgrades by MD Construction featuring new siding for enhanced curb appeal.

Exterior Upgrades

Boost curb appeal with expertly built decks, fences, siding, and more. We take care of every detail—no matter the season.

MD Construction team reviewing construction plans on-site.

Trusted Since 1987

With over 35 years of roots in St. Thomas and Elgin County, MD Construction has built a reputation for quality, reliability, and care. Originally founded in 1987, the company is now proudly led by Tom Baines and Jocelyn McTaggart (Baine’s Contracting) — long time partners in life and business continuing the tradition of craftsmanship while bringing a fresh, personalized approach to every project.

What Our Clients Say

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.

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’re a full-service general contractor specializing in home renovations, additions & extensions, exterior improvements, commercial construction, and maintenance/repairs. From kitchen remodels and basement finishes to storefront upgrades, we deliver quality craftsmanship from start to finish.

Timelines vary based on project size and complexity. Small renovations may take 1–2 weeks, while larger builds or additions can span several months. We’ll walk you through a clear schedule before work begins.

Just schedule a consultation or give us a call. We’ll learn about your goals, take measurements if needed, and provide a detailed estimate outlining the scope and costs—no pressure.

Yes—we are fully licensed and insured. You can have peace of mind knowing your home or business is in the hands of certified professionals who meet all local building regulations.

Absolutely. We handle permits for you and offer design support to ensure your project aligns with your vision, local bylaws, and budget.

We stand behind our work. Most services include a workmanship warranty, and materials may be covered by manufacturer warranties too.

MD Journal