Working with Gateway Group and the team there was fantastic for me as an investor. They helped me understand market conditions, and helped us create a legal duplex I feel really good about.

Design-Build in Hamilton — New Homes, Additions & Multi-Unit Builds
One team from feasibility through permits to final inspection. Fixed price. No surprises. Tarion-registered builder.
⭐ 4.9 Google Rating | 🛡️ Tarion-Registered Builder | 💰 Fixed-Price Contracts | 🏗️ 12+ Years in Hamilton | 📋 All Permits Handled
At Gateway, we specialize in transforming underused land and existing properties into modern, multi-unit homes that enhance your lifestyle and deliver long-term value. Our integrated Design-Bu
Building a home or adding to one is one of the largest decisions you’ll make. Most people spend months trying to find the right builder — only to discover mid-build that their contractor can’t close permits, can’t hold a price, or hands the project off to trades they’ve never met.
Gateway is built differently. We’re not just renovators — we’re Tarion-registered builders. That means we take full accountability from the first feasibility conversation through to final city sign-off. One team. Fixed-price contract. You know exactly what’s happening every active build day.
Whether you’ve just bought a property and want it transformed before you move in, or you’re building a new home, addition, or multi-unit build from the ground up — we guide the full process so you never have to chase a contractor, a permit, or an answer.
ild process brings feasibility, planning, design, project management, and construction together under one roof — so your project is thoughtfully designed, efficiently executed, and built to last.
Ready to start your project? Let’s explore how we can transform your space and build opportunities together.
Create Your Dream Home in the Neighbourhood You Love
Love where you live, but need more — more space, a suite for your parents, a rental unit, or a full transformation before you move in? Gateway’s design-build approach lets you stay rooted in the neighbourhood you know while building the home your family actually needs.
Your dedicated team guides every step — from site assessment and design selections through permits and construction to the final walkthrough. You give us your vision. We deliver it, on time, at the price we quoted, with a WhatsApp update every active build day so you’re never left wondering.
What sets Gateway apart isn’t just the craftsmanship — it’s the accountability. We’re Tarion-registered builders who have been managing complex residential builds in Hamilton for over 12 years. Our clients show off their finished projects. That’s the outcome we’re building toward every single time.
Building with Gateway is a Personalized Experience
From the first site assessment to the final walk-through, we provide clear communication, upfront pricing, and dependable scheduling for total peace of mind. Our focus on smart layouts, durable finishes, and efficient designs ensures every home is both functional and beautiful — built to stand the test of time.
Whether you’re creating a duplex, triplex, or fourplex, or planning a larger infill development, Gateway delivers homes that maximize opportunity for homeowners, investors, and communities alike.
We’re not just renovators, we’re builders. From legal basement suites to ground-up new homes, we handle the full scope.
One team from plans to permits to final build. No handoffs, no confusion, just one accountable team from start to finish.
Clear pricing. Daily updates. No surprises. Fixed-price contracts and consistent communication, so you always know what’s happening.
Provide us with some details of your project, and our Design Build Specialist will conduct a preliminary assessment for you.
The advantages of choosing a Gateway Design Build
You get exactly what you want - whether it's ensuite bathrooms or a home office; the floor plan is up to you.
New homes are built to be more energy efficient, so you could save on hydro bills.
Enjoy peace of mind as the home will be under Tarion warranty and aligned with the latest styles and trends.
You know exactly what you are getting, removing the risk of buying something with hidden issues or poor workmanship.
Certified. Registered. Trusted.
Working with Gateway Group and the team there was fantastic for me as an investor. They helped me understand market conditions, and helped us create a legal duplex I feel really good about.
Gateway Group were the building contractors on the newly renovated house we bought at the end of 2021. The team used premium materials throughout and every maintenance or contract team that has been through our home since we purchased it have commented on the high quality of the renovation and finishings.
My family and I are so happy to work with the Gateway team and also be surprised of buying this house that it was built by you so everything look good to me. It is nice house, good quality especially good price.
My wife and I bought our first home built by Charles and the Gateway team and absolutely love it. The whole process has been great, Charles and the team are very responsive and care about the quality of work and the product they built. We love our home and are so happy to make memories here.
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