Stone Chimney Crown & Cap Restoration

A full crown rebuild, a new stainless steel cap, and fresh flashing on a large stone chimney in Weston – sealing the masonry against water and protecting the flue for years to come.

Service
Crown Repair & Cap Installation
Location
Weston, MA

The Challenge

This Weston home had a large stone chimney whose crown had worn and cracked, the flashing where it met the roof was failing, and the flue sat exposed at the top. On a chimney this size, a failing crown and flashing let water into the masonry with every storm, while an uncapped flue invites rain, animals, and debris. Bringing it back means rebuilding the crown, sealing the flashing, and capping the flue – demanding work at the very top of a tall stone chimney, done without disturbing the home below.

Rebuilt crown and sealed flashing on a stone chimney in Weston, MA

Our Approach

We restored the top of the chimney as a complete system. First we rebuilt the crown with a solid, properly sloped concrete wash that sheds water away from the masonry and overhangs the edges. We then sealed the flashing where the chimney meets the roof so water can’t track in at the base, and fitted a new custom stainless steel cap over the flue to keep out rain, animals, and downdrafts while still letting the chimney breathe. Every step was carried out up on the roof with care for the stonework and the home.

The Result

The stone chimney is fully restored and weather-tight – a new crown shedding water, sealed flashing at the roofline, and a durable stainless steel cap protecting the flue. The homeowner in Weston is left with a chimney that looks great, keeps water out of the masonry, and is built to last for many years.

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FAQ

Frequently asked questions

What is a chimney crown and why rebuild it?

The crown is the concrete slab at the top of the chimney that sheds water off the masonry. When it cracks or wears, water gets into the chimney and causes damage - rebuilding it with a properly sloped, overhanging wash restores that protection and extends the life of the whole chimney.

Why does the flashing need to be sealed too?

Flashing is the seal where the chimney meets the roof. If it fails, water runs down into the home right at the base of the chimney. Sealing or replacing it is an essential part of restoring the top of a chimney, so you are protected against leaks on every side.

What does a chimney cap actually do?

A cap covers the flue opening to keep out rain, snow, animals, and debris, and it helps stop downdrafts - all while still letting the chimney vent. A stainless steel cap is durable, rust-resistant, and built to last.

Do you work on stone chimneys as well as brick?

Yes. We rebuild crowns, install caps, and repair flashing on stone, fieldstone, and brick chimneys alike, matching our approach to the chimney's size, shape, and construction.

How long does a crown and cap restoration take?

Most crown, cap, and flashing jobs are completed in a day or two, depending on the size of the chimney and the condition of the masonry. We provide a clear scope and timeline before the work begins.