The workMatching a finish on a wall that is already standing
Most of the finish work we are called for is not a blank wall. It is an addition, a repair, or one elevation being brought back — and it has to sit next to something that already exists.
1. A sample panel goes up before the wall does. Mixed from the batch we will actually use, worked by the person who will actually work the elevation, and left to cure. Wet stucco is not the colour of cured stucco, and judging a finish off a wet panel is how people end up with a house two shades off what they picked.
2. We look at it outdoors, cured, in the light that matters. On the elevation it belongs to, at the time of day that wall is normally seen. A colour chosen under a garage light or against a north wall does not survive first contact with a south elevation in August.
3. We tell you honestly how close a patch will get. A repair blended into a twenty-year-old wall gets close enough that most people stop seeing it within a season. It does not vanish, and anybody promising you it will has not done many of them. The detail is in why a stucco patch never quite matches.
4. New work stops at a corner or a control joint. Never in the middle of an elevation. A finish change on a flat run will read as a patch in low light no matter how good the colour match is, so we plan the new work to end where the wall already has a natural break.
5. Sometimes the honest answer is the whole elevation. Fifteen years of weather changes a wall — not the pigment failing, just dirt, sun and rain doing their work evenly across it. New material matched to the original formula will read brighter than its neighbour because the neighbour has aged. When a repair is large enough that this will show, re-coating the elevation costs less than doing it twice, and that is a restoration conversation rather than a repair one.
Season: April to November, same as the rest of the cement work on the house. Finish coats are the fussiest part of that rule, because colour development and curing both suffer in the cold — the timing is in the best time of year for stucco work in the GTA.