Love your neighbourhood but need more space? Caliber Contracting designs and builds seamless home additions across Kitchener, Waterloo, Cambridge, and Paris that expand your footprint without compromising your home's character.
A well-designed addition doesn't look like an addition — it looks like the home was always meant to be that size. That's the standard Caliber holds for every expansion we build.
We match rooflines, siding profiles, window styles, and interior trim so the new space integrates seamlessly with the existing structure. Whether it's a second-story addition on a century home or a kitchen extension designed to capture a backyard view, we bring architectural intent to every square foot.
Our engineering background means we understand the structural implications of adding to an existing home — load paths, foundation requirements, bearing walls, and tie-ins. This expertise prevents costly surprises and ensures your addition is built to last.

Add an entire second floor to a bungalow or cape cod. Includes structural reinforcement, new roof framing, stairs, bedrooms, bathrooms, and full finishing.
Expand your kitchen, dining room, or living space with a ground-level addition. New foundations, structural tie-ins, and seamless interior integration.
Purpose-built expansions designed around cooking and gathering. Often feature vaulted ceilings, full-height windows, and direct backyard access.
Private retreats with walk-in closets, spa-quality ensuites, and features like heated floors, soaker tubs, and custom built-ins.
Smaller targeted expansions — typically 4 to 8 feet — that create meaningful extra space for a breakfast nook, mudroom, or enlarged bathroom without a full addition.
Steel beams, engineered headers, poured concrete foundations, and waterproofing systems. The structural backbone that makes every addition possible.
From second stories on century homes to kitchen extensions designed for the view — see what's possible.






Home addition costs typically range from $200 to $400 per square foot depending on scope, finishes, and structural complexity. A single-story main floor addition might range from $150,000 to $300,000, while a two-story addition can range from $250,000 to $500,000 or more.
Yes, a building permit is required for all home additions in Ontario. The permit process includes architectural drawings, structural engineering, and municipal review. Caliber Contracting manages the entire permit application process on your behalf.
A typical home addition takes 4 to 8 months from permit approval to completion. A single-room main floor addition may take 3 to 5 months, while a large two-story addition with full interior finishing can take 6 to 10 months.
Absolutely. Seamless integration is one of Caliber's specialties. We carefully match rooflines, siding, brick, windows, and interior finishes so the addition looks and feels like it was always part of the original home.
In most cases, yes. We implement dust barriers, floor protection, and separate entry points to minimize disruption during construction.
Tell us about your addition project. We'll schedule a complimentary discovery call to discuss your vision, timeline, and budget.