A property manager called me to a mid-rise corridor last spring that had been painted twice in twelve months and still looked rough — shadows down the seams, bubbling near the doors, a patch that flashed in the afternoon light. She wanted a third coat. I told her the paint was never the problem; the drywall under it was. This one’s for property managers and condo boards: why drywall prep decides whether a repaint lasts two years or ten, the failures I find behind fresh coats, and how we prep a wall before a brush touches it.
1. Fresh paint doesn’t hide bad drywall — it advertises it
Paint is unforgiving, and the low-sheen, washable finishes a condo corridor needs make it worse — they telegraph every ridge, seam, nail pop, and badly feathered patch. The lighting finishes the job: corridor pot lights and stairwell-door glass throw light across the wall at a low angle, and that raking light casts a shadow off anything you left behind. A wall that looked fine at noon looks lumpy at 5 p.m.
People assume a second coat will bury the problem. It won’t — you just get a smoother version of the same flaws. The fix is underneath.
What to look at: stand at one end of a freshly painted corridor with the lights on and look down the wall at a low angle. Seam lines, shadows, or patches that “flash” differently from the wall around them are drywall problems, not paint.
2. The failures I keep finding behind the paint
When I open a corridor up, it’s almost always the same short list. Nail and screw pops — fasteners backing out as the building moves and the framing dries, leaving little cracks or bumps that return within a season. Joints that were never properly embedded, so a ridge or a recessed line runs down the seam. Movement cracks above door frames and at corners that filler alone reopens every winter. And water-damaged board — soft, stained gypsum near an old leak that should never be painted over, because you just trap moisture and invite mould.
In an occupied building they get worse: nobody wants to open a wall in a busy corridor, so it gets painted over until someone finally looks underneath.
What to look at: run your hand along the seams and fastener lines. Ridges, hairline cracks that keep coming back, soft or stained spots, and patches sitting proud of the wall all say the surface needs work before paint.
3. The prep is most of the job — here’s how we do it
On a corridor repaint, the painting is maybe a third of the labour; the rest is the part nobody sees. We walk the run in raking light and mark every pop, crack, and soft spot before we quote, so the board isn’t surprised mid-project. Pops get refastened into solid framing, not just filled. Stress cracks get taped with mesh or paper and a setting compound, not caulked over. Failing board comes out and gets replaced.
Then it’s mud, sand, and a skim coat to bring each repair flush, feathered wide enough to disappear — and a real primer over every repair. Bare compound and old painted wall drink paint at different rates; prime first and the finish won’t flash. For lobbies under hard light we’ll often spec a higher level of finish — a Level 4 or 5, meaning a fully skim-coated, dead-smooth surface — because it has to look right for years, not months.
What to look at: get the prep scope in writing — fastener repair, crack treatment, board replacement, skim coat, and priming. If the quote just says “two coats throughout,” you’re buying next year’s repaint.
4. Doing it without shutting the building down
The reason boards delay this work is disruption — dust, smell, blocked corridors. That’s a scheduling problem, not a reason to keep painting over bad walls. Sanding is dusty, so we contain it: poly sheeting, zippered doorways, and HEPA vacuum sanding so it doesn’t drift into units and elevators. We stage corridors in sections so an exit stays open, and use low-odour, low-VOC products so residents aren’t driven out.
Done right, residents notice the corridor looks new and not much else. Skip the containment and you get callbacks, complaints, and a wall that looks tired before the next AGM.
What to look at: ask any painter how they’ll contain dust and keep an exit open in an occupied building. The answer tells you whether they’ve actually worked in live condos or just quoted them.
What to do if you’re seeing any of this
If your corridors, lobbies, or stairwells were painted recently and already look rough — seams showing, patches flashing, cracks reopening — the paint is almost never the culprit. The wall under it is. Walk it in raking light, mark every seam and crack, and get a quote that prices the prep, not just the coats.
I assess drywall and repaint scopes for condo corporations and property managers across Ottawa — Kanata, Nepean, Barrhaven, Orleans, Manotick, Stittsville, and Westboro. For a straight read on whether you need repairs or a full refinish before your next paint cycle, call me at 613.325.3011 or email yasir@heims.ca.
— Yasir, HEIMS Construction
HEIMS Construction is an Ottawa painting and finishing contractor, founded in 2017, serving condo corporations, property managers, and institutions across the Ottawa area. We carry $10M general liability insurance and are members of BOMA Ottawa, the Ottawa Construction Association, BOMA Canada, and the CCI Eastern Ontario Chapter, with Alcumus certification.