We serve discerning homeowners in Vaughan (Kleinburg, Woodbridge, Thornhill, Maple, Concord), York Region(Richmond Hill, Markham, Aurora, King City), and the GTA, plus secondary homes in Muskoka/cottage country, Collingwood & Blue Mountain, and Prince Edward County.

Prefer remote? We can design from anywhere and often collaborate with client-selected contractors, providing construction-ready drawings/specs, virtual coordination, and scheduled site visits or well-planned design trips so you get our detail-first process with the convenience of your preferred team.

Step 1: Complimentary Discovery Call. Share goals, timeline, and investment; we confirm fit and next steps.

Schedule your Discovery Call

Step 2: 2-Hour Consultation. We diagnose opportunities and constraints, align scope and priorities.

Step 3: Flat-Fee Proposal. Thornton Design presents a fixed design fee tailored to your scope.

Step 4: Design & Presentation. Review finishes, drawings, and renderings, and see the vision before purchasing.

Step 5: Implementation (optional). We procure, manage, and install, on time, on budget, zero drama.

With nearly 30 years of projects across Vaughan, York Region, and the Greater Toronto Area, we’ve built proprietary data and analytics to accurately predict scope durations and true costs. We quote precisely and schedule realistically.

We’re also honest about the unexpected: hidden conditions happen. We educate you upfront, include contingencies, and align expectations before we begin. Add vendor-verified pricing, front-loaded procurement, weekly schedule control, and disciplined change management and your project is delivered on time and within your investment.

Every project begins with a 2-hour paid consultation. From that meeting, we provide a flat-rate interior design fee matched to the scope we discussed. Once approved, our team gets to work solving, designing, and detailing.
What to expect:

In-Studio Presentation (Vaughan): 

See, touch, and feel curated finishes, construction materials, furnishings, and textiles alongside drawings, elevations, and photorealistic renderings so you can experience the space before anything is purchased.

Procurement & Execution (optional, full-service): 

We handle ordering, purchasing, tracking, quality control (from fabric to fabrication), delivery coordination, installation day, and final styling, saving you time while we protect your budget and timeline.

Born from nearly 30 years of design adn renovations across Vaughan, York Region, and the GTA, our D.E.T.A.I.L.™ Method is a proven, end-to-end process that delivers Renovation Without Regret:

Diagnose What Matters: We uncover structural, mechanical, and flow issues early so there are no surprises later.

Explore How You Live: Routines, storage, entertaining, kids/pets, design grounded in real life.

Translate Vision Into Buildable Designs: Construction-ready drawings, specs, and schedules (down to outlet locations and door swings).

Align Budget, Timeline & Materials: Data-driven pricing, verified lead times, and built-in contingencies keep projects on track.

Implement With Precision: One accountable team, front-loaded procurement, weekly checkpoints, and disciplined change control.

Lock In Livability: Final walkthroughs and punch lists ensure it not only looks right it feels right.

Result: A beautiful, highly functional home delivered on time and on budget, with a calm, transparent experience from first question to final walkthrough.

Learn more about the D.E.T.A.I.L. Method