825-488-6352
Calgary, Alberta & Surrounding Areas

Built Right.
Built to Last.

From full basement renovations to custom homes and multi-family builds — OTTI General Contractor delivers craftsmanship Calgary homeowners trust.

Craftsmanship Warranty
Calgary-Based & Local
Residential Specialists

Two Specialties.
One Standard of Excellence.

Whether you're transforming your existing home or building something entirely new, OTTI brings the same commitment to quality to every project.

Category 01

Residential Renovations

Completed basement renovation in Calgary

Full Basement Renovations

Your basement is one of the most valuable — and most underutilized — spaces in your home. OTTI specializes in transforming unfinished or dated basements into stunning, functional living spaces that add real value to your property.

Full Basement Renovations

Our specialty. Complete transformation from framing and insulation to drywall, flooring, and finishing. We handle every trade.

Basement Suite Development

Legal secondary suites with separate entrances, kitchenettes, and bathrooms — maximizing your property's income potential.

Home Theater & Recreation Rooms

Custom entertainment spaces, wet bars, and family rooms designed for how you actually live.

Category 02

Building from Scratch

When you're ready to build from the ground up, OTTI has the expertise to bring your vision to life. We specialize in three types of new construction — each requiring a different skill set, and each executed with the same uncompromising attention to detail.

Multi-Family Units

Duplexes, triplexes, and small apartment buildings — built for investors and developers who demand quality.

Detached Garages

Standalone garages built to match your home's architecture. Single, double, or oversized — built to last.

Custom Single-Family Homes

Your dream home, built exactly the way you envisioned it. No compromises.

New construction project in Calgary
Custom single-family home in Calgary

Transformation
Stories.

Drag the slider left or right to see the before and after of our recent projects. From raw excavation to finished luxury spaces — this is what OTTI craftsmanship looks like.

Basement Drainage & Foundation

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Bathroom Renovation - Modern Tile

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Basement Framing Phase 1

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Basement Framing Phase 2

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Bathroom Fixture Installation

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Bathroom Tile Work

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Bathroom Modern Design

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Marble Bathroom - Fixtures to Finish

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Marble Tile Installation

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High-End Marble Shower Enclosure

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These are examples of our recent work. Ready to transform your space? .

We Don't Cut Corners.
Period.

In an industry where shortcuts are common, OTTI has built its reputation on doing things the right way — every time. We're a Calgary-based team that takes personal pride in every project we touch, from the first nail to the final coat of paint.

Craftsmanship Warranty

We stand behind our work with a dedicated craftsmanship warranty. If something isn't right, we make it right — no questions asked.

Proudly Local

We're a Calgary-based contractor. We know the local building environment, the climate demands, and the community we serve.

Direct Communication

You work directly with the people building your project. No middlemen, no miscommunication — just clear, honest dialogue.

On-Time Delivery

We respect your time and your schedule. Our projects are planned meticulously to minimize disruption and meet agreed timelines.

Our Commitment to You

The OTTI Craftsmanship Warranty

Every project OTTI completes is backed by our craftsmanship warranty. This isn't fine print — it's our personal commitment that the work we deliver meets the highest standards of quality. If a defect in our workmanship surfaces after completion, we return and fix it. Simple as that.

Workmanship Defects Covered
Prompt Response
No-Hassle Process
Your Peace of Mind

From First Call to
Final Walkthrough.

Free Consultation

We discuss your vision, your budget, and your timeline. No pressure, no obligation — just an honest conversation about what's possible.

Detailed Estimate

You receive a clear, itemized estimate with no hidden costs. We explain every line item so you know exactly what you're paying for.

Expert Execution

Our team gets to work. We keep you informed at every milestone and maintain a clean, organized job site throughout.

Final Walkthrough

We walk through the completed project together. Only when you're fully satisfied do we consider the job done.

Serving Calgary & Surrounding Areas

CalgaryAirdrieCochraneOkotoksChestermereStrathmoreHigh RiverSurrounding Areas

Let's Build
Something Great.

Ready to get started? Fill out the form and we'll get back to you within one business day with a free, no-obligation estimate. Or reach us directly — we're always happy to talk.

Service Area

Calgary, AB & Surrounding Areas

Backed by Our Craftsmanship Warranty

Every project we complete is covered by our craftsmanship warranty — your assurance that we stand behind our work.

Request a Free Estimate

Tell us about your project and we'll be in touch.

We respond within 1 business day. No spam, ever.