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Chimney masonry repair in Sanford, start to finish
Three things our masons in Sanford explain before any mortar comes out.
Rusting steel hidden in the masonry
Steel set into or supporting brick, such as a lintel over an opening or a support angle, grows as it rusts. The Brick Industry Association lists accumulated rust on lintels and shelf angles among the conditions it treats as structural, since the swelling steel pushes on the masonry around it.
That pressure can crack and lift the courses above, and patching the brick alone will not stop it. If we find rusting steel behind the damage, we explain what cleaning, treating or replacing it would involve before any brick goes back, and whether an engineer should weigh in first. You decide with the full picture in writing.
Vines and plant growth on chimney brick
Ivy and similar plants can push fine shoots into small voids in the mortar and hold moisture there. The Brick Industry Association recommends cutting the vines away from the wall instead of pulling them off, since pulling can tear at the brickwork and loosen weak joints.
The cut shoots are left to dry and darken, then brushed off with a stiff fiber brush and detergent, without acids or harsh chemicals. Joints that crack or loosen once the plant is gone are repaired afterward. Tell us about any growth when you book so the visit allows time for it and the estimate covers it.
Learning what the old mortar is made of
Chimneys were not all laid with the same mortar. Brick Industry Association guidance suggests considering a test of the existing mortar when the goal is a matching repair mix, since its makeup affects strength, color and how it handles moisture.
On most jobs a close look at hardness, color and sand tells our masons enough to choose the mix. Where the chimney is older or the mortar behaves unusually, we tell you whether more testing is worth the time and cost. Either way, the mix we plan to use is named on your estimate, and we explain why it suits the brick that stays.
