Townhome and Duplex Inspection in Calgary: What You Need to Know

Townhomes and duplexes sit in a unique spot between condos and detached homes. You have your own entrance and usually your own furnace, but you share walls with your neighbours. That shared structure changes what I look at during an inspection — and it introduces a few issues that you will not find in either a condo or a standalone house.

If you are buying a townhome or duplex in Calgary, here is what the inspection process looks like, what I typically find, and what it will cost you.

How a Townhome Inspection Differs

In a condo inspection, the condo corporation is responsible for the roof, exterior walls, and common areas. In a detached home, everything is yours. A townhome or duplex lands somewhere in the middle, and that middle ground creates some specific things to watch for.

You typically own the interior, your entrance, and sometimes a small yard or patio area. Depending on the building, you may have your own roof section or share a continuous roof. You almost certainly share at least one wall — a party wall — with your neighbour. That shared wall has fire separation requirements, and those requirements matter.

The inspection scope is broader than a condo but narrower than a full detached home. That is why my flat-rate pricing for townhomes and duplexes runs from $400 to $600 depending on size, with GST included. Every inspection includes thermal imaging, moisture testing, and gas detection at no extra charge.

What I Inspect

Here is what a typical townhome or duplex inspection covers:

Roof section. If your unit has its own roof area, I inspect the shingles, flashing, and any penetrations. On some townhomes, the roof is shared or managed by a homeowners association. I will check whatever is accessible from your unit.

Exterior walls and siding. I look at the cladding, trim, and weather sealing on your unit’s exterior. In duplexes, this usually means two or three sides of the building. In townhomes, it may be just the front and back.

Party wall and shared wall considerations. I check for visible signs of fire separation issues, sound transmission gaps, and moisture bridging along shared walls. These walls are supposed to meet specific building code requirements for fire rating.

Plumbing. I run every faucet, flush every toilet, and check the water heater. In some older duplexes, the plumbing layout gets creative, and I have seen shared drain lines that create problems.

Electrical. Full panel inspection, outlet testing, GFCI verification in wet areas, and a check of the overall wiring type and condition.

HVAC. Townhomes vary widely here. Some have a standard furnace and AC setup. Others, especially newer builds, use fan coil units or in-suite systems that differ from what you would find in a detached home. I check whatever system is installed for age, condition, and operation.

Windows and doors. Every window and exterior door gets checked for operation, sealing, and condition. In multi-level townhomes, upper floor windows are especially important for egress.

Garage. If your unit has an attached garage, I inspect the door, opener, fire separation between the garage and living space, and ventilation. Carbon monoxide risk from an attached garage is something I take seriously.

Grading and drainage. For units with a yard area, I check how water moves around the foundation. Even a small yard can create drainage issues if the grading directs water toward the building.

Common Findings in Calgary Townhomes

After inspecting hundreds of townhomes and duplexes across Calgary, certain patterns show up regularly:

Party wall fire separation issues. The wall between your unit and your neighbour’s unit is supposed to provide fire-rated separation. I often find gaps at the top of the wall in the attic space, unsealed penetrations where services pass through, or modifications that compromise the fire rating. This is one of the most important things I check. If you want to know more about what I commonly flag, check out my post on home inspection red flags.

Shared drainage concerns. In some older duplexes, drainage systems are partially shared. Downspouts from one unit sometimes direct water toward the other unit’s foundation. Grading between units can be tricky, especially when lot lines run close to the building.

Attached garage carbon monoxide risks. The fire separation and air sealing between an attached garage and the living space needs to be solid. I use gas detection equipment to check for CO migration, and thermal imaging to verify the seal is intact.

Limited attic access. Many townhomes have restricted or no attic access from the unit. When I can get in, I often find insulation issues, ventilation problems, or evidence of moisture. When I cannot get in, I note it and use thermal imaging to gather what information I can from below.

Water heater placement. In some townhome layouts, the water heater is tucked into a closet or small mechanical room with minimal clearance. I check for proper venting, combustion air supply, and any signs of leaking or corrosion.

Calgary Neighbourhoods and What to Expect

The type of townhome or duplex you are looking at varies a lot depending on where it is in Calgary.

Inner-city infills in communities like Bridgeland, Killarney, and Marda Loop tend to be newer construction — often modern duplexes or row townhomes built on former single-family lots. These are usually well-built, but I still find builder deficiencies, grading issues on tight lots, and occasional shortcuts in finishing.

Suburban townhomes in newer communities like Nolan Hill, Cornerstone, and Redstone are typically part of larger developments. They are newer, which means fewer age-related problems, but builder quality varies. I frequently find minor deficiencies that should have been caught during warranty.

Older duplexes in established communities like Renfrew, Capitol Hill, or Forest Lawn often come with character and a few surprises. Original wiring, older plumbing materials, and decades of repairs and modifications make these inspections particularly thorough.

What You Get for Your Money

My townhome and duplex inspections are priced from $400 to $600 based on size, with all prices including GST. Every inspection includes thermal imaging, moisture testing, and gas detection — no add-on fees.

You get a thorough on-site inspection lasting two to three and a half hours, a detailed digital report with photos and recommendations, a walkthrough of the most important findings on-site, and support after the inspection if you have questions about the report.

For a closer look at what my pre-purchase inspection covers and how the process works, visit the services page.

Ready to Book Your Townhome or Duplex Inspection?

If you are buying a townhome or duplex in Calgary, give me a call at (403) 861-7100 to book a pre-purchase inspection, or reach out online. I will make sure you understand exactly what you are buying — shared walls and all.