Built for Function, Designed for Longevity

Expand Your Space with a Custom Garage or Detached Structure

A well-built garage or detached structure
isn’t just extra space—it’s an investment in your home’s functionality and value.

Whether you need a secure garage for your vehicles, a workshop, a guest house, or a storage shed, we design and build durable, high-quality structures tailored to your needs.

Why Invest in a Custom Garage
or Detached Structure?

Increase Property Value

A well-built garage or detached unit boosts your home’s resale appeal.

Protect Your Vehicles & Equipment

Keep your cars, tools, and recreational gear safe from the elements.

Additional Living or Workspace

Convert a garage or shed into a home office, guest suite, or workshop.

Built to Last

Using high-quality materials and modern construction techniques ensures durability.

Custom-Designed for Your Needs

From extra storage to multi-purpose use, we build to your specifications.

OUR GARAGES

& detached structures

Custom Garages

Single, double, or multi-car garages with storage and workspace options. Choose from attached or detached designs to fit your property.

Workshops & Hobby Spaces

Need a dedicated workspace? We design and build insulated, well-lit structures perfect for woodworking, mechanics, or creative projects.

Guest Houses & ADUs (Accessory Dwelling Units)

Turn a detached structure into a fully functional living space —ideal for guests, rental income, or in-laws.

Storage Sheds & Barns

Built to store lawn equipment, tools, recreational vehicles, or farming supplies. Choose custom features like shelving, electrical, and insulation.

Problem-Solving Mindset

From complex structural modifications to correcting past construction errors, we thrive on finding the best solutions.

What to Expect

from the Process

Our streamlined process ensures your new structure is built efficiently, on time, and to your specifications:Z

Consultation & Site Planning

– We assess your space, discuss your needs, and recommend the best layout.

Design & Permitting

We create custom plans while handling all local zoning and permit requirements.

Construction & Customization

High-quality materials ensure a sturdy, long-lasting structure.

Final Walkthrough & Finishing Touches

We guarantee every detail meets your expectations.

Why Choose
Thornhill Builders?

At Thornhill Builders, we go beyond standard garages and sheds—we create custom-built, durable spaces
that enhance your home’s functionality and curb appeal.

• Expert Craftsmanship

We focus on quality construction, ensuring a sturdy, long-lasting build.

• Custom Design Options

From extra storage to living spaces, we design structures to fit your exact needs.

• Clear Communication & Planning

No surprises, just straightforward timelines and detailed updates.

• Energy-Efficient & Smart Upgrades

We can incorporate insulation, solar panels, or smart technology for maximum efficiency.

Let’s Build the Space You Need

Need a garage, guest house, or custom
storage solution? Let’s design and
build it together.

FAQ

Q: How much does it cost to build a garage or detached structure?

A: Pricing depends on size, materials, and features, but we provide detailed, transparent estimates before construction begins.

Q: Do I need a permit for a detached structure?

A: Yes, most municipalities require permits. We handle all zoning and permitting for a hassle-free process.

Q: Can I add electrical, plumbing, or heating to my garage or shed?

A: Absolutely! We can include lighting, outlets, climate control, and plumbing for full functionality.

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