Open or sandy mortar joints
What we check: How much of each joint has failed and whether the surrounding brick is sound.
Possible repair: Repoint the affected joints when the masonry can support a focused repair.
From the ground, several masonry problems can look alike. We check the accessible joints, brick, crown, movement, and possible water paths before recommending a scope.
What we check: How much of each joint has failed and whether the surrounding brick is sound.
Possible repair: Repoint the affected joints when the masonry can support a focused repair.
What we check: Which bricks and courses are damaged, and whether adjacent masonry is stable.
Possible repair: Replace damaged brick and repair adjoining joints as the scope requires.
What we check: The extent of damage at the chimney top and where water may enter.
Possible repair: Repair or rebuild the crown or shoulder separately from sound brickwork.
What we check: Movement, stability, and how far the damage extends above the roofline.
Possible repair: Consider a larger rebuild when a smaller repair would leave failed masonry in place.
Rain may enter at mortar joints, the crown, cap, or flashing. A stain alone cannot tell us which part needs work. See our broader chimney repair guide if the source is unclear.
If brick is loose or the chimney appears to lean, keep people clear of the area below and request an assessment. Do not climb onto the roof to inspect it yourself.
Repointing—often called tuckpointing—replaces deteriorated mortar in existing joints. The new mortar must suit the brick and remaining mortar, especially on older chimneys; appearance is only part of the choice. The National Park Service explains why mortar compatibility matters.
The affected sides and height, number of damaged bricks, roof access, materials, crown work, and any permit or historic review can change the scope. Your written estimate should identify the work and total price. For sourced examples of different scopes, read our Philadelphia chimney repair cost guide.
We assess the affected masonry and explain the proposed repair before you decide whether to proceed.
Tell us what you are seeing and share your ZIP. We will confirm the appropriate visit and explain how the written masonry estimate works.
On this Philadelphia project, damaged upper brickwork was rebuilt from the roofline to the crown. The completed work included a rebuilt crown and a replacement cap. The photos show the visible change in the masonry.


A written estimate for your chimney should identify the affected area, proposed materials, work, and total price.
You can review the findings, proposed materials, price, and work-specific terms before approving the work.
Tell us about open joints, loose brick, crown cracks, leaning, or stains. Photos taken from the ground can help.
We check the relevant accessible areas and document the visible condition where useful.
See the recommended repair, proposed materials, price, exclusions, and applicable approval needs.
We carry out the agreed work and explain what was done and any follow-up care.
Financing is available for eligible chimney projects. Review the written estimate first, then ask about current payment options. Financing is subject to provider approval and plan terms.
Ask About FinancingTell us what you have noticed. We can explain the next step and how a written repair estimate works.