Chimney Caps, Dampers & Waterproofing in Groton, CT

Moisture is the #1 enemy of masonry. A quality stainless steel cap, a top‑sealing damper, and breathable water repellents form a protective system that keeps rain, snow, animals, and downdrafts at bay while allowing your chimney to breathe. In Groton’s coastal climate, these components dramatically extend the life of crowns, liners, and interior finishes by reducing water intrusion and corrosive salt exposure.

Top‑Sealing Dampers vs. Throat Dampers

Traditional throat dampers leak conditioned air. Top‑sealing dampers mount at the flue top with a gasketed lid that seals tight when closed—saving energy and minimizing cold drafts. We install models that are easy to operate from the firebox and compatible with stainless caps for combined protection.

Cap Options We Install

We specify stainless steel mesh and lids sized to your flue(s) with secure anchoring and bird/animal protection. For multi‑flue tops, we install custom multi‑flue caps that cover the entire crown for improved weather protection. All hardware is stainless to resist corrosion in salty air.

Waterproofing That Works

Our breathable repellents penetrate masonry to block liquid water while allowing vapor to escape. That means walls stay dryer without trapping moisture. We prep, clean, and apply to manufacturer specs and can pair the treatment with crown repair or replacement for a complete moisture‑control plan.

FAQ

Will a cap improve draft? It stabilizes airflow and prevents wind‑driven downdrafts. It also keeps out rain that cools the flue.

Do dampers help with odors? A tight top‑sealing damper reduces odors by limiting humid air exchange when not in use.

How long does waterproofing last? Many products last 5–10 years depending on exposure; we’ll recommend a maintenance schedule.