MULTI-FLUE

A multi-flue full-coverage chimney cap is a large, custom-fitted metal cap designed to cover the entire top of your chimney, rather than just the individual flue openings. This type of cap not only protects multiple flues at once but also shields the entire chimney crown and surrounding masonry from rain, snow, and debris. At Chimney Doctors, we only use high-quality ChimGuard full-coverage chimney caps for the ultimate chimney protection.

Unlike smaller, single-flue caps, full-coverage caps provide comprehensive protection against moisture intrusion, animal entry, and spark escape. They’re especially useful for larger chimneys or chimneys serving multiple fireplaces or appliances, ensuring everything stays safe, dry, and operating efficiently.

Without full-coverage protection, a good part of your chimney crown remains exposed to the elements, even if you have separate single-flue chimney caps. Over time, that exposure can lead to cracking, water penetration, and freeze-thaw damage. This process weakens your chimney’s structure and accelerates the pace of costly repairs. ChimGuard’s multi-flue full-coverage chimney caps protect both your chimney crown and interior against moisture damage.

If you don’t have even a single-flue cap over each flue, your unprotected flues are vulnerable to bird nests, leaves, and other blockages that can disrupt airflow and increase the risk of smoke backup or even carbon monoxide intrusion. A ChimGuard full-coverage chimney cap dramatically reduces these risks and enhances the longevity of your entire chimney system.