About This Service
Review masonry defects before coatings
BIA guidance treats investigation and correction of defects as part of addressing water penetration. A water-repellent treatment is not a substitute for repairing failed joints or other defects. We discuss whether the material and condition support a treatment after the underlying concern is understood.
Identify the requested outcome
You may need a recurring drip addressed, a damaged cover replaced or an earlier recommendation explained. Naming that goal helps frame the assessment. Twin explains what the proposed repair covers instead of bundling several unrelated concerns into a vague waterproofing package.
Use records to clarify prior work
A previous estimate can identify whether flashing, masonry or a chimney-top component was actually repaired. Share it when available. That distinction helps avoid attributing a later symptom to a component that was never part of the earlier scope.
Discuss the handover
After the accepted work, keep the description of repaired components and any remaining recommendation. That record is more useful than a general statement that the chimney was serviced. It helps future maintenance address the correct location and installed detail.
Keep Interior and Exterior Observations Paired
A photograph of the indoor stain and an existing image of the outside chimney can describe different parts of the same request. Neither establishes the whole water path. Keep their dates and locations clear so the assessment does not compare an old condition on one surface with a new observation on another.










