Professional ADU (Accessory Dwelling Unit) Construction in St. Catharines, Ontario

Reliable workmanship, clear communication, and quality results designed to protect and improve your home.

Takes 2 mins | Zero Obligation | Fast Response

About Our ADU Construction

Complete secondary unit construction designed for extra living space or rental income.

Legal & Code-Compliant Builds

We build ADUs that meet all local zoning and building regulations. Ensures safety, approval, and long-term use.

Custom Design & Layout

We design functional, comfortable spaces that maximize every square foot. Perfect for family living or rental units.

Full-Service Project Management

From permits to final finishes, we handle everything. Gives you a smooth, stress-free building process.

Reliable ADU Construction for Long-Lasting Performance and Protection

Reliable ADU Construction for Long-Lasting Performance and Protection

Accessory dwelling units are a smart way to add space and increase property value. Without proper planning and construction, issues like zoning problems, poor layout, or structural concerns can arise. Professional ADU construction ensures your project is done right from start to finish.

We begin with a detailed assessment of your property and goals to create the best plan for your ADU. Whether it’s a backyard unit or basement apartment, we use quality materials and proven building methods designed for Ontario conditions. Every project is completed with precision and care.

By choosing experienced professionals, you avoid costly mistakes and delays while maximizing your return on investment. A properly built ADU adds usable space, rental income potential, and long-term value to your property.

Our Recent Renovation & Construction Work

Take a look at some of our recent renovation and construction projects across St. Catharines and the Niagara Region.
We take pride in delivering consistent, high-quality results that homeowners can trust.

Why Homeowners Choose Us

We take pride in providing dependable renovation and construction services backed by 15+ years of experience, strong attention to detail, and a customer-first approach. From the first consultation to final completion, we make the process simple, clear, and stress-free.

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Trusted by Homeowners

Reviews from St. Catharines and Niagara Region homeowners who trust our quality work, fair pricing, and reliable service.

Get Started

Ready to get started?

Get your free quote today or book your project with Hama Companies Inc.

Takes 2 mins | Zero Obligation | Fast Response