Gresham homes built before the 1970s often have single-wall clay flues and lime mortar that break down when rain soaks the chimney crown year after year. Wet winters bring repeated freeze-thaw cycles that open joints and let water reach the attic, especially on houses near the Gresham Pioneer Cemetery where mature trees funnel extra runoff onto roofs. Restoration starts with removing failed parging, installing a new concrete or stainless cap with proper overhang, and repointing with type N mortar matched to the original brick.
Flooding in the Rockwood area can push water up through the hearth if the chimney base sits below grade. We excavate around the foundation, add drainage, and install a stainless liner sized to the appliance before rebuilding the smoke chamber. Mt. Hood Community College campus buildings show the same pattern: heavy moss on the north face signals chronic moisture that eventually migrates into the flue tile.
Portland building code requires permits for any liner or crown work that changes the chimney structure. We pull the permit, schedule the inspection, and leave the job with a cleanout door that actually reaches the bottom of the flue, something many older Gresham chimneys lack.
Technician insight
In Gresham, the thing that catches most people out with chimney restoration is how wet winters push water through the crown and then down the back of the flue on 1950s brick homes; the leak shows up in the attic long before the exterior looks bad, and ignoring the drainage fix near the foundation means the same problem returns the next winter.
Downtown Gresham Brick Chimney
Heavy moss and open joints on a 1962 house near Gresham Pioneer Cemetery had allowed water into the attic during the last wet winter. We found deteriorated flue tile and a crown that had no overhang. The crew removed the old crown, installed a new cast cap with drip edge, repointed the full height, and added a stainless liner. The homeowner reported no further staining after the next rain cycle.
How it works
- 1
Site Assessment
We examine the crown, joints, flue, and attic penetration on site in Gresham, noting water staining and moss growth tied to local rain patterns.
- 2
Water and Structural Repair
Failed mortar is cut out, new caps are formed, and drainage fixes are added where Rockwood flooding has reached the base.
- 3
Liner and Rebuild
A properly sized stainless liner is installed, the smoke chamber is parged, and the chimney is rebuilt to match the original brickwork.
- 4
Final Inspection
We verify draft, confirm code compliance, and walk the homeowner through the completed work before leaving the property.
Pricing
Pricing is determined after on-site inspection because water damage extent and liner length vary widely between Downtown and Rockwood homes.