Repair or full-wall skim — which is right for Cavanagh plaster?

It depends on the wall. A few cracks in solid Cavanagh plaster we spot-fix; walls with extensive cracking or waviness do better skimmed flat. We give you a straight answer for your Cavanagh home.

Is spot repair enough for my Cavanagh plaster, or should the wall be skimmed?

It depends on the wall. In Cavanagh, isolated cracks in sound plaster mean spot repair — widespread cracking or waves mean a full skim. We give you a straight answer for your Cavanagh home.

Do you work on plaster over brick?

Yes, and it is a different substrate — no lath, no keys, bonded to the masonry. It fails where damp has reached the brick, so we look for the moisture source before quoting, or the problem just moves along the wall.

The corner of my plaster wall is bubbling. Why?

Often a corroded metal bead beneath. Rust expands and pushes the plaster off from behind, so filling it just brings the same failure back. That bead section has to come out and be replaced.

Do you stand behind your plaster repair in Cavanagh?

Yes. We walk every Cavanagh job with you before we pack up, and if something is not right we come back and make it right.

Do you work on lath-and-plaster and on modern veneer plaster?

Both. Wood-lath and gypsum-lath plaster in older Cavanagh homes, and veneer plaster over blueboard in newer builds. The failure modes are different, so we identify which you have before quoting.

Plaster Repair Cavanagh Edmonton | Lath & Plaster

Cracked and bulging plaster in Cavanagh, re-anchored and skimmed flat

Most Cavanagh plaster we look at is repairable. The question is whether it is still keyed to the lath behind it. If it is, the wall gets re-anchored and skimmed; if whole sections have separated, those sections come out and get rebuilt. Settling that on site, in writing, is what stops a small repair turning into a full room.

Skim-coating plaster to a flat modern finish
Dust-controlled work in older Cavanagh homes
Patching holes and crumbling edges
Bulging plaster re-anchored to the lath with plaster washers
Cavanagh coverage — we come to you
Cavanagh lath-separated plaster bulges re-secured
Delaminated Cavanagh ceilings re-secured or rebuilt

Why Cavanagh plaster cracks in the first place

Movement, not bad workmanship

Most cracking in Cavanagh plaster is seasonal movement rather than a defect. Alberta humidity swings move a timber frame, and plaster is rigid, so it relieves that stress at its weakest points: the corners of door and window openings, and the joint between ceiling and wall.

What that means for the repair

A crack that moves has to be taped, not just filled. Filler on its own bridges the gap and re-cracks in the first dry spell. We tape across the crack so the repair can take the movement, then skim it out flat.

Repairing plaster against boarding over it

Two honest options

Some Cavanagh rooms are past patching. Then the choice is rebuilding the plaster or boarding over it with drywall and skimming. Boarding is faster and flatter. It also buries the original surface and costs a little ceiling height and any plaster detail.

How we decide with you

If the plaster is largely sound, repairing keeps the character and costs less. Once roughly a third of a wall has failed, boarding over usually buys a better wall for the money. We tell you which one we would do, and why, before you commit to either.

Is the plaster still keyed to the lath?

The one question that sets the price

Traditional Cavanagh plaster was pushed through wood lath so it squeezed out behind and hardened into keys. Those keys are all that hold it up. When they break, the plaster separates and the wall bulges or the ceiling sags.

How we check

We press and sound the surface by hand across the whole area, not only at the crack. Where the plaster still holds, it stays and gets skimmed. Where the keys have gone, that section is re-anchored with plaster washers or cut out and rebuilt. Nothing comes out that does not need to.

Plaster ceilings, and why they are treated differently

Gravity is the difference

A wall that has separated from its lath will sit there for years. A Cavanagh ceiling that has separated is holding itself up against gravity, and it lets go in sheets. Any sag, any springiness, and we treat the ceiling as a safety item rather than a cosmetic one.

Re-secure or rebuild

Where the plaster is sound but the keys are tired, plaster washers screwed through into the joists pull it back tight. Where it is crumbling, that section comes down and is rebuilt in board, then skimmed so the ceiling reads as one continuous surface.

Living with a heritage Cavanagh interior

Mouldings and detail

Older homes often carry plaster cornice, ceiling roses and picture rails. Careless repair destroys detail that cannot easily be replaced.

How we work around it

We ask before starting what is being kept, work back to a natural break in the moulding rather than through it, and say honestly where a detail cannot be matched rather than damaging it and apologising afterwards.

Reattaching plaster without removing it

Washers and adhesive

Where Cavanagh plaster has separated but is otherwise sound, plaster washers screwed through into the lath or joists pull it back and hold it, sometimes with an injected adhesive behind.

Why it is worth doing

It preserves the original surface, is far less disruptive than removal, and costs less. It only works where the plaster itself is still strong, which is what the sounding test establishes.

How it works

Simple, clean, on schedule — Plaster Repair in Cavanagh Edmonton

Free quote

We come out to your Cavanagh Edmonton property, take a real look at the plaster repair, and hand you a fixed price on the spot — no guessing, no vague ballpark. Every plaster repair quote in Cavanagh Edmonton starts with an honest, on-site assessment.

Book a day

We pick a day that works for your schedule and show up on time, ready to start the plaster repair in Cavanagh Edmonton. No back-and-forth rescheduling — once it's booked, our team is there.

The work

We keep the dust under control and protect your Cavanagh Edmonton home while we finish the plaster repair to a clean, paint-ready standard. Floors covered, doors sealed off, and the site left tidy at the end of every day.

Walk it with you

We don't pack up till you've walked the finished plaster repair with us and you're happy with the result in Cavanagh Edmonton. If anything needs a second look, we handle it before we call the job done.

Reviews

Rated by Edmonton Homeowners

★ ★ ★ ★ ★

Emplastrum Drywall is the plaster repair contractor Cavanagh Edmonton trusts for repair, restoration and finishing — rated on Google by Edmonton homeowners.

Read the reviews, or leave your own after your plaster repair project in Cavanagh Edmonton.

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FAQ — Plaster Repair Cavanagh Edmonton

Plaster Repair Cavanagh Edmonton: your questions answered

Repair or full-wall skim — which is right for Cavanagh plaster?: It depends on the wall. A few cracks in solid Cavanagh plaster we spot-fix; walls with extensive cracking or waviness do better skimmed flat. We give you a straight answer for your Cavanagh home.
Is spot repair enough for my Cavanagh plaster, or should the wall be skimmed?: It depends on the wall. In Cavanagh, isolated cracks in sound plaster mean spot repair — widespread cracking or waves mean a full skim. We give you a straight answer for your Cavanagh home.
Do you work on plaster over brick?: Yes, and it is a different substrate — no lath, no keys, bonded to the masonry. It fails where damp has reached the brick, so we look for the moisture source before quoting, or the problem just moves along the wall.
The corner of my plaster wall is bubbling. Why?: Often a corroded metal bead beneath. Rust expands and pushes the plaster off from behind, so filling it just brings the same failure back. That bead section has to come out and be replaced.
Do you stand behind your plaster repair in Cavanagh in Edmonton?: Yes. We walk every Cavanagh job with you before we pack up, and if something is not right we come back and make it right.
Do you work on lath-and-plaster and on modern veneer plaster?: Both. Wood-lath and gypsum-lath plaster in older Cavanagh homes, and veneer plaster over blueboard in newer builds. The failure modes are different, so we identify which you have before quoting.

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Plaster Repair Cavanagh Edmonton

Cracked and bulging plaster in Cavanagh, re-anchored and skimmed flat