McAllen Roof & Leak
San Juan, Texas

Chimney repair and repointing in San Juan

A chimney can let water in without the roof being involved at all. A cracked crown, a missing cap, spalled brick or eroded mortar joints all admit water into the stack, where it travels down and appears inside looking exactly like a roof leak. Because the symptom is identical, chimneys are a common source of leaks that have been repaired at roof level more than once without success.

Call (706) 696-1888 Hidalgo County

What the job involves

  • Inspection of crown, cap, flashing and masonry condition
  • Repointing of eroded mortar joints
  • Crown repair or recasting where cracked
  • Cap fitting where missing, to keep rain out of the flue

Signs you need it

  • Damp on the chimney breast inside the house
  • Visible cracking in the crown or spalling brickwork
  • A chimney leak that has been repaired at roof level before

Why roofs fail in San Juan and Hidalgo County

San Juan is close enough to the Gulf to take the full force of tropical systems, and that is the storm profile that sets everything else. Hurricane wind is sustained for hours rather than gusting, which does something different to a roof — it works shingle tabs loose over an extended period and drives rain horizontally under courses that would shed any normal downpour. Then the heat and humidity do the slow damage. Roofs across Hidalgo County run hot for most of the year, which ages the shingle and hardens every rubber and sealant component on it, and the humidity means that anything which gets wet inside the roof structure stays wet. A small leak here does considerably more damage over the same period than the same leak would further north, and mould becomes a problem much sooner.

San Juan has a population of about 37,868, and the housing stock here sets the pattern for what fails first on a roof.

Questions about chimney repair and repointing in San Juan

Is my leak the flashing or the chimney itself?

Both present almost identically. Flashing leaks usually show at ceiling level where the stack passes through; masonry leaks often show lower, on the breast itself, and worsen with wind-driven rain from a particular direction. Checking both before working on either saves repeating the job.

Does an unused chimney still need a cap?

More so, arguably. An open flue on a disused stack takes rain straight into the structure with nothing drawing it back out, so the masonry stays wet and deteriorates faster than one in use.

Other roofing work in San Juan

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You will get a straight answer on whether San Juan needs someone out today or whether it can wait — before anyone quotes you for anything.

Call (706) 696-1888
Call (706) 696-1888