Melrose’s sticky summer humidity and sudden thunderstorms are tough on older chimneys. If your brickwork or liner hasn’t been inspected since spring, now’s the time to book a sweep before fall’s first burn. We’re seeing more cracked liners and eroded mortar in Melrose’s 1920s homes after this season’s swings.
Why Melrose’s summer weather is rough on older chimneys
My 1912 brick chimney in Melrose’s West End has never felt so stressed. The humidity soaks into the masonry, then the next heatwave bakes it dry, cracking the mortar joints. Add a surprise thunderstorm like the one on July 12th, and the liner can absorb water, leading to rust or even a blocked flue. I’ve seen it in homes on Summer Street and High Street this month. If your chimney’s been acting up—drafting poorly or smelling musty—it’s likely the summer weather. A full inspection can spot hidden cracks before they worsen. Don’t wait for the first cold snap to find out your liner’s shot.
What Melrose homeowners should check before fall
My neighbor on Franklin Street just found her clay liner cracked after this summer’s humidity swings. If your chimney’s over 20 years old, check for white efflorescence on the bricks (salt deposits from water evaporation) or gaps in the mortar. These are signs your masonry needs repointing. Also, test your damper—if it sticks or won’t close fully, humid air’s getting in. If you’re unsure, schedule a free estimate and we’ll check your liner, cap, and flashing. We serve Melrose and nearby towns like Wakefield and Stoneham, so no matter where your older home is, we’ve got you covered.