When to Walk Away — Garage Issues That Should Stop a Purchase

I was crawling around a detached garage on Fairview Street last Tuesday when my flashlight caught something that made my stomach drop. The concrete floor had a hairline crack running diagonally from corner to corner, and when I pressed my thumb against it, water actually bubbled up through the concrete. The homeowner had been parking on top of what was essentially a slow-motion sinkhole for months. You can imagine how that conversation went.

After 15 years of inspecting Burlington homes, I've seen garages that look perfect from the street turn into $23,000 nightmares the moment buyers get the keys. What I find most concerning isn't the obvious stuff like a sagging roof or peeling paint. It's the hidden problems that'll have you writing cheques you never budgeted for.

Let's talk foundations first. These 1970s garages in neighbourhoods like Tyandaga were built when concrete standards were different. I'll run my hands along the foundation walls looking for that telltale white chalky residue. That's efflorescence, and it means water's been making itself at home in places it shouldn't be. When you see it paired with horizontal cracks longer than your forearm, you're looking at foundation movement that could cost $18,400 to fix properly.

The electrical situation in these older garages makes me lose sleep. Buyers always underestimate this. You'll walk into a garage that's got one lonely outlet hanging off knob-and-tube wiring from 1968, and somehow they think they're going to charge their Tesla in there. I've opened electrical panels in Aldershot garages where previous owners just kept adding circuits like they were collecting hockey cards. No permits, no logic, just prayer and electrical tape holding everything together.

Here's what really gets me worked up. The roof structure. I was inspecting a place on Plains Road last month where the garage roof looked fine from ground level. Solid shingles, clean gutters, the works. But when I got up there with my ladder, three of the main support beams had stress fractures you could slide a credit card through. The garage door opener had been mounted incorrectly and was literally pulling the roof apart every time someone came home from work.

Sound familiar? These 1960s builds used different lumber grades than what we see today. The garage was often an afterthought, built with whatever materials were left over from the main house. I'll grab onto overhead beams and give them a shake just to see what happens. You'd be surprised how often I feel things flex that should be rock solid.

The moisture problems are where things get expensive fast. Burlington's spring weather in April 2026 is going to test every weak spot in that garage envelope. I've seen garage doors with seals so deteriorated that melting snow just flows right under the door and sits there all season. That's how you get concrete spalling that costs $12,750 to repair. The concrete literally starts flaking apart like old paint.

But here's the surprise that caught me off guard just last week. I was inspecting a gorgeous garage on Brant Street, everything looked immaculate, when I noticed something odd about the floor slope. Instead of sloping toward the door like it should, this floor actually sloped toward the back corner. Someone had tried to level an uneven slab by adding a concrete overlay, but they'd done it backwards. Every drop of water that entered that garage was pooling in the corner behind stored boxes and Christmas decorations. The smell hit me when we moved everything out. Black mold had been growing back there for who knows how long.

In 15 years I've never seen a concrete resurfacing job go well when it's done to hide a drainage problem instead of fix it. You'll pay $8,900 for new concrete only to watch the same problems resurface within two years. The water always finds a way.

The overhead door systems in these older garages are accidents waiting to happen. I'm talking about spring tension systems installed when safety standards were suggestions rather than requirements. I've seen springs snap and take out rear windshields. I've seen tracks pull away from walls because the mounting hardware wasn't designed for modern insulated doors. When you're looking at a garage door that's older than your mortgage broker, budget $2,400 for a complete replacement.

Here's my biggest concern with garage inspections. People get so focused on the main house that they treat the garage like it's optional. But if that garage shares a wall with your living space, problems there become problems in your kitchen. I've traced mysterious odors and air quality issues back to attached garages where carbon monoxide was seeping through shared walls.

The concrete pad itself tells a story if you know how to read it. Settlement cracks running parallel to the foundation walls usually mean the soil wasn't properly compacted before the concrete went down. Those cracks will telegraph right through any new flooring you try to install. Fixing it properly means breaking up the existing pad and starting over, which runs about $16,200 for a typical two-car garage.

What keeps me going after all these years is knowing I can save someone from making a costly mistake. These Burlington garages have served families well, but they need attention after 40-plus years. Don't let a dream home turn into a money pit because you skipped the garage inspection. Give me a call and let's take a proper look together.