Our Services. OAF Construction
What We Build

Our Services

Basements, legal suites, garages, and commercial build-outs across Calgary and Airdrie. Every one runs on a fixed-price contract: the number you sign is the number you pay. Full City permits, every required inspection, and a 5-year workmanship warranty behind the finished work.

200+ Projects Completed
4.9 HomeStars Rating
2x Best of HomeStars
5 year Warranty
Core Services

Built for Calgary Homeowners

Lifestyle Basement Development
8 to 16 WeeksFixed-PriceFull Permits

Lifestyle Basement Development

That unfinished basement is the cheapest square footage you'll ever add — you already own the walls. We design it first, then build: home theatre, gym, guest suite, rec room, whatever the family actually needs. Our recent Calterra build out in Rocky View County ran a full kitchen and a marble-tile bath.

Legal Secondary Suites
$1,200-$1,800/moCode CompliantUp to $10,000 SSIP Grant

Legal Secondary Suites

A legal suite pays you back every month — $1,200 to $1,800 in most Calgary neighbourhoods. The catch most homeowners miss: "legal" means a separate entrance, egress windows, fire separation, and a City inspection sign-off, not just a kitchenette. We handle all of it, and you may qualify for up to $10,000 back through the SSIP grant. Our Creekstone suite in Cranston is a recent one — separate entrance, full kitchen and bath.

Garage Construction
4 to 8 WeeksHeated OptionsFull Permits

Garage Construction

A Calgary garage lives or dies on the slab. Frost heaves to four feet here, so we pour and reinforce the pad to sit still through the chinook cycles that swing 30 degrees in an afternoon. Detached, standard or oversized, insulated, with heated options if you want a workshop that's usable in January. Permits and site prep included.

Commercial Tenant Improvements
4 to 12 WeeksCode CompliantMinimize Downtime

Commercial Tenant Improvements

For landlords and tenants: retail, office, and restaurant build-outs, from a few partition walls to a full interior gut. The thing that actually costs you on a build-out is downtime, so we schedule around your lease dates and hit the handover we promise. Permitted, inspected, on schedule. Recent build-outs: an African grocery in Forest Lawn and an auto retail floor in Foothills Industrial.

City of Calgary Grants Available: Up to $10,000 for basement suites (SSIP) and up to $35,000 for garage suites (Backyard Suite Incentive, launched March 2, 2026).

Learn More
The OAF Difference

Every Project. Every Time.

These commitments are baked into every service we offer. From basement developments to commercial buildouts.

Fixed-Price Agreements

No estimates, no allowances, no surprises. The price you agree to is the price you pay.

Fully Permitted

Every project built with full City of Calgary permits and passes all required inspections.

Dedicated PM

One point of contact from day one through final walkthrough.

5-year Warranty

Comprehensive workmanship warranty on every build. We stand behind our work.

200+ Projects Completed
4.9 HomeStars Rating
2x Best of HomeStars
Licensed & Insured

Work completed to city code, with great attention to detail and high-quality results. The team was professional from start to finish and delivered exactly what was promised.

Tolulope Sokoya Basement Development, Calgary

Delivered as scheduled and on budget with guidance throughout the entire process. The communication was excellent. We always knew what was happening and what came next.

Tunji Kehinde Basement Development, Calgary

Excellent customer service and great work done. Fair price range as well. Highly recommended for basements and garages.

Verified Homeowner HomeStars Review
Ready?

Ready to Start Your Project?

Book a free discovery call. No pressure, no obligation. Just an honest conversation about your project and whether we are the right fit. Not sure where to begin? Start here to see how our process works.

Get a Free Quote
  • You own your Calgary home or commercial space
  • You want quality that lasts
  • You want a clear, fixed price before work starts
  • You are ready to start within 3 months
A
Chat with OAF
OAF Project Advisor
4.9 / 5 · 28 reviews · HomeStars 2024 + 2025
Call 825-360-7399Free Quote