A photo can describe a defect. It cannot confirm concealed conditions or the right repair method.
Describe the condition before choosing the method
| What you can observe | What to tell the contractor |
|---|---|
| An isolated impact | Approximate size, location, damaged edges and what caused it. |
| A recurring crack | Whether it has been repaired before and when it reappeared. |
| A wider damaged area | Rooms affected, previous removal and whether the damage continues out of view. |
| Staining or a leak history | When it occurred, whether the source was investigated and any assessment reports. |
| Loose or distorted material | Describe it from a safe position; arrange assessment rather than pressing or cutting it. |
The repair boundary may be wider than the hole
Ask how the contractor will establish a sound repair area and blend the transition into the existing wall. The quoted area should explain the relationship between the damaged section, replacement material if needed, and the surrounding finishing.
Where several defects occur on the same surface, compare a local repair approach with a more extensive scope. Ask what each option leaves in place, what it changes, and what uncertainty remains. There is no useful universal hole-size cutoff that decides every project.
Resolve moisture and movement questions first
A new surface treatment does not resolve a continuing leak. Health Canada advises resolving the moisture cause; CertainTeed also notes that moisture-resistant drywall can be damaged by flooding or persistent water exposure. Have the cause and material condition assessed before agreeing cosmetic work.
Source: Health Canada; CertainTeed
Agree what “matching” includes
Existing texture, several coats of paint and changes in light can make the handover more complicated than filling a hole. Ask whether the scope ends at a finished patch, includes a wider blend area, or continues through primer and paint.
- Photograph the whole wall as well as the damaged area.
- Mention a texture or decorative coating that needs to remain.
- Identify nearby corners and natural stopping points.
- Confirm who repaints and whether the whole wall or only the repaired area is included.
Give the Building Division the whole changed proposal
Delta’s guidance says project advice depends on the information provided and directs uncertain proposals to its Building Division. If comparing a patch with wider replacement would change what is removed, exposed or reconstructed, describe that fuller option. The original inquiry about a small defect should not be treated as a determination for an expanded repair.
Source: City of Delta
- Ask what each option retains and whether any specified wall or ceiling assembly is affected.
- Keep the cause assessment separate from the cosmetic repair recommendation.
- Have the coordinator confirm which documents or approval questions need revisiting if the scope grows.
A few practical questions.
Can a recurring crack simply be filled again?
Describe the history and ask for assessment of the reason it returned before agreeing another cosmetic repair. The appropriate next step depends on the cause; this website cannot diagnose movement from a description.
Can photos establish a final repair price?
Photos may help an initial discussion, but hidden damage, access and the surrounding finish may still need inspection. Ask whether a figure is a preliminary allowance or an estimate tied to a defined assessed scope.
Sources & editorial context
- Guide to addressing moisture and mould indoorsHealth Canada · Checked October 24, 2026
- Mold and MoistureCertainTeed · Checked October 24, 2026
- Building & RenovatingCity of Delta · Checked October 24, 2026
Technical references support the points linked above. The checklists and planning questions are editorial guidance, not a specification or an account of a contractor’s completed work.