Full-Service Home Renovation & Remodeling Across the GTA

Onyx Construction provides complete home renovation and construction services across Toronto and the GTA, including basement renovations, kitchen and bathroom renovations, home additions, custom homes, garden suites, remodeling, and general contracting.

Home Renovation Services

Renovation services built around quality and reliability.

From complete basement renovations to custom homes, kitchens, additions, and general construction, Onyx Construction manages the details that turn client ideas into finished spaces with confidence. As a licensed general contractor serving Toronto, Mississauga, Oakville, and the wider GTA, we handle every stage of a renovation or new build in-house planning, permits, trades, and finishing so you work with one accountable team instead of coordinating separate contractors yourself. Whether you’re renovating a single room or building a custom home from the ground up, explore the services below

Luxury Custom Homes Construction & Renovation

Our design-build process for luxury custom homes connects early planning with construction reality. We align feasibility, scope, premium finish expectations, permit requirements, schedule, and budget before the first major site decision is made so your custom home in the Toronto comes together exactly as planned.

New Home Construction in Toronto

We manage new home construction across the GTA from the ground up site preparation, framing, structural work, mechanical rough-ins, and finishing — with one point of accountability from permits through final walkthrough. Every new build is planned to meet code, budget, and timeline before the first shovel goes in the ground.

Garden Suites Renovation in Toronto

Garden suites are one of the fastest-growing projects for GTA homeowners, a self-contained backyard living space ideal for rental income, multigenerational living, or a private home office. We manage the full process: zoning and permits, framing, utilities, and interior finishing, tailored to your property and municipal requirements.

Complete Toronto Home Renovations

A complete home renovation touches every room together with the kitchen, bathrooms, living spaces, and flooring updated as one cohesive project instead of a patchwork of separate updates. We manage demolition, layout changes, trades, and finishes under a single timeline, so your whole home feels consistent from room to room.

Complete Home Remodeling in Toronto

Remodeling goes beyond finishes reshaping floor plans, opening up rooms, and updating structural layouts to fit how you actually live. It often involves load-bearing changes and permit-reviewed structural work, which we manage alongside the mechanical and finishing details so the result functions as good as it looks.

General Contracting in GTA

As your general contractor in Toronto, we take full ownership of the project coordinating trades, managing permits and inspections, sourcing materials, and keeping budget and schedule on track from start to finish. One point of contact, one accountable team, across any renovation or build in the GTA.

Kitchen Renovation in Toronto

A kitchen renovation can improve how your home looks, functions, and uses its available space. We manage kitchen renovations across the GTA, from layout changes and demolition to cabinetry, countertops, flooring, lighting, plumbing, and final finishes.

Bathroom Renovation in Toronto

We provide complete bathroom renovation services across the GTA, managing everything from demolition and plumbing to tile work, fixtures, lighting, and finishing. Whether you’re renovating a main bathroom, ensuite, powder room, or creating a more functional layout, we coordinate the work from start to finish.

Basement Renovation in the GTA

Turn an unfinished or underused basement into a functional living space with a renovation planned around how you want to use it. We manage basement renovations across the GTA, including framing, insulation, drywall, flooring, electrical, plumbing, bathrooms, kitchens, and interior finishing.

Home Additions in Toronto

Need more space without moving? A home addition can expand your existing property while making better use of the space you already have. We manage home addition projects across the GTA, including planning, structural work, framing, mechanical systems, exterior integration, and interior finishing.

Completed Renovations

Real project photos from completed work.

Planning a Renovation or New Build in the GTA?

Whether you’re renovating one room, remodeling your entire home, adding new living space, or building from the ground up, Onyx Construction can help coordinate your project from planning through completion.

FAQ

How do we start a renovation with Onyx Construction?

Start with a short consultation. We discuss your goals, budget range, timeline, site conditions, and whether a visit, drawings, or permit review should come next.

Can you help with permits?

Yes. When permits are required, we help coordinate the process and keep the scope aligned with building-code expectations and municipal requirements.

Do you handle complete home renovations?

Yes. We manage full interiors, basements, kitchens, bathrooms, additions, custom homes, and general construction work across Toronto and the GTA.

Do completed projects include warranty protection?

Completed workmanship is backed by a written warranty so homeowners have documentation and support after the final walkthrough.

How long does a typical renovation project take?

Timelines depend on the size of the project and whether permits are required. A bathroom renovation may take a few weeks, while a complete home renovation, remodel, addition, or new build can take several months. We outline a projected timeline as part of your detailed estimate.

What's the difference between a renovation and a remodel?

A renovation updates existing spaces — new finishes, fixtures, and layouts within the current structure. A remodel goes further, often changing the structural layout or function of the space. We handle both, and can help you figure out which one fits your project during the consultation.

Are you licensed and insured for all these services?

Yes. Onyx Construction is fully licensed and insured, with WSIB coverage and liability insurance on every project type listed above, including new builds, additions, and garden suites.