Drywall repair in Calgary: nail pops, settling cracks and dry-air shrinkage

Almost every Calgary home has a few drywall problems. A row of small bumps across the ceiling. A crack running up from the corner of a door. A doorknob hole behind the bedroom door. Most are cosmetic, and almost all are repairable in a visit or two. The trick is knowing which ones are just the house moving with the seasons and which need a closer look.

This guide covers the drywall issues we see most in Calgary, why they happen in this climate, how they are fixed, and when to hold off until the seasons settle.

Why Calgary drywall cracks

Drywall is stiff. The wood framing behind it is not. Lumber shrinks as it dries, and it moves with temperature and humidity. Calgary has a few things that make that movement more noticeable:

• Very dry winter air. Indoor humidity drops sharply once the furnace runs. Wood framing and trim shrink, and drywall seams and corners show it.
• Chinook swings. Rapid temperature changes in winter make the house expand and contract quickly. See what chinooks do to your house.
• New construction. Framing lumber in a new home keeps drying for the first year or two, which is why newer homes in communities like Seton, Legacy and Savanna often show nail pops and seam cracks in the first winters.
• Settling. Every house settles a little. Older homes in established neighbourhoods have done most of theirs, but additions and renovations can introduce new movement.

Common drywall problems and fixes

Nail pops and screw pops

These are small round bumps or cracked circles of paint, usually in lines that follow the framing. They happen when the framing shrinks and the fastener head pushes out through the compound.

The fix: drive a new drywall screw just above or below the popped one to pull the board tight to the stud, then reset or remove the original fastener, fill both with compound, sand, prime and paint. Simply pushing the nail back in usually leads to it popping again.

Seam and tape cracks

Cracks along the line where two sheets meet, often at the wall-to-ceiling joint or in a long straight line across a ceiling. Sometimes the paper tape lifts and forms a bubble.

The fix: cut out any loose tape, re-tape with fresh compound, feather the edges wide so it blends, and paint. On ceilings, a wide feathered finish matters, since light from windows shows every ridge.

Corner cracks above doors and windows

Diagonal cracks from the corners of door and window openings are the classic settling crack. They happen because the opening is a stress point in the wall.

The fix: open the crack slightly, tape it with mesh or paper tape, mud in thin coats, sand and paint. If the same crack keeps returning after a proper repair, it is following ongoing movement.

Corner bead cracks

Outside corners have a metal or plastic bead under the compound. Knocks from furniture or settling can crack the compound or dent the bead. Damaged bead can be cut out and replaced.

Holes

• Small holes from nails, anchors and picture hooks: filled and sanded.
• Doorknob holes and medium dents: a patch or backing piece, then compound in coats.
• Larger holes: cut back to a clean square, install backing, screw in a new piece of drywall, tape and finish.

A door stop or wall bumper afterwards stops the doorknob hole from coming back.

Water-stained drywall

A brown ring on a ceiling means water reached the drywall. The source must be fixed first: a leaking toilet seal, a shower, a roof issue or an ice dam. Once it is fixed and the area is completely dry, stained drywall can be sealed with a stain-blocking primer and repainted, or cut out and replaced if it is soft.

When to wait before repairing

Some cracks open and close with the seasons. If you repair a seam crack in January when the air is driest and the framing has shrunk the most, it may stay closed. If you repair it in August, it may reopen in winter. For new homes, many people wait for the first full year of seasons before doing a full round of drywall touch-ups, which also lines up with how new-build deficiencies are handled.

Nail pops, holes and impact damage can be fixed any time.

Matching texture and paint

The hardest part of drywall repair is making it disappear. Two things make that harder:

• Texture. Many Calgary homes, especially those built in the 1970s to 1990s, have textured ceilings. Some newer homes have a light orange-peel texture on walls. A patch needs the texture matched, or it will show.
• Paint. Touch-ups rarely blend perfectly unless you have the original paint and the wall is not faded. Often the cleanest result is painting the wall corner to corner. See interior painting in Calgary.

How the repair visit works

Drywall compound needs to dry between coats. Calgary's dry air speeds that up, but most repairs still need a few coats with sanding between them. That can mean either one longer visit with fast-setting compound, or a return visit for the final coat and paint. The quote spells this out.

Before the visit:

• Move furniture away from the wall.
• Take down art and shelves in the area.
• Let us know if you have leftover paint, and roughly when the room was last painted.

Dust is controlled with drop sheets and sanding methods that keep it down, and the area is cleaned up afterwards.

Drywall repair for landlords and businesses

Between tenants, walls almost always need patching: anchor holes from TVs, scuffs, doorknob holes. Doing drywall and paint in the same visit is the fastest way to turn a unit around. See rental turnover repairs in Calgary.

Kaur Handyman repairs drywall in houses, condos, rentals and small business spaces across Calgary, Airdrie and Chestermere. See the full list of services.

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Calgary NW, NE, SW and SE, plus Airdrie and Chestermere.

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