7 Must-Know Signs You Need a Chimney Sweep in Barrington and Runnemede, NJ

By Marshall T Chimney LLC Team · Updated July 27, 2026

If your Barrington or Runnemede fireplace smells smoky, shows creosote buildup, or hasn’t been swept in over a year, it’s time for a professional chimney sweep. Ignoring these signs risks chimney fires and carbon monoxide poisoning—especially important given Stratford’s humid climate and older housing stock.

1. A chimney inspection is your first line of defense against hidden hazards in Barrington and Runnemede homes

A chimney inspection is a thorough visual and physical check of your chimney’s interior and exterior, including the flue, liner, smoke chamber, damper, and exterior masonry. In Barrington and Runnemede—where many homes were built before modern chimney codes—hidden cracks, deteriorating mortar, or missing flue liners are common. The Chimney Safety Institute of America (CSIA) recommends annual inspections to catch these issues early, especially after severe weather like the nor’easters that frequently impact South Jersey. If your chimney hasn’t been inspected in over a year, schedule one before lighting your first fire this fall. Learn what’s included in a full inspection

2. Creosote buildup in your Barrington or Runnemede chimney is a silent fire starter—don’t wait until it’s too late

Creosote is a black, tar-like residue that coats the inside of your chimney when wood burns inefficiently. It builds up in three stages: from soot (stage 1) to glazed, hardened deposits (stage 3), which can ignite at temperatures as low as 451°F—far lower than a roaring fire. In Barrington’s older homes, where chimneys often have rough, unlined flues, creosote accumulates faster. The National Fire Protection Association (NFPA) warns that creosote is the leading cause of chimney fires. If you notice black, flaky residue on your damper or hear a crackling sound during a fire, your chimney needs sweeping immediately. See how we remove creosote safely

3. A smoky fireplace in your Runnemede home isn’t just annoying—it’s a carbon monoxide alarm in disguise

If smoke spills into your living room instead of drafting up the chimney, your flue may be obstructed, cracked, or improperly sized. In Runnemede’s tightly built homes—especially those with additions or remodeled fireplaces—poor drafting is a common issue. Carbon monoxide (CO) is odorless and deadly; a blocked flue can push CO back into your home instead of venting it outside. The U.S. Environmental Protection Agency states that even low levels of CO exposure can cause flu-like symptoms. If your fireplace smokes when lit, stop using it and call a sweep right away. Get your chimney inspected before the next burn

4. White, chalky stains on your Barrington chimney’s exterior signal water damage—and potential structural failure

Efflorescence—those white, crusty deposits on brick or mortar—means water is seeping into your chimney’s masonry. In Barrington, where humidity and seasonal rains are common, this is a red flag. Water weakens mortar, causes bricks to spall, and can corrode metal components like dampers and flue liners. Left unchecked, a water-damaged chimney can collapse or allow water to enter your home. The Chimney Safety Institute of America advises sealing chimneys with waterproofing treatments after repairs to prevent future damage. Protect your chimney from water damage

5. Strange noises, like popping or rumbling, coming from your Runnemede chimney mean it’s time for a professional sweep

Popping or rumbling sounds during a fire often indicate excessive creosote buildup or a blockage, such as a bird’s nest or fallen debris. In Runnemede, where many chimneys are older and have open tops, animals frequently nest inside during warmer months. These obstructions restrict airflow, forcing smoke and gases back into your home. The National Fire Protection Association (NFPA) recommends clearing obstructions before each heating season. If you hear unusual noises, don’t assume it’s normal—schedule a sweep to inspect the flue and remove any blockages. See our animal exclusion services

6. A chimney that hasn’t been swept in over a year is a fire hazard—especially in Stratford-adjacent Barrington and Runnemede

The Chimney Safety Institute of America (CSIA) recommends sweeping your chimney when creosote reaches 1/8 inch or thicker—typically after 1 cord of wood is burned. In Barrington and Runnemede, where wood-burning fireplaces are common, this can happen in just a few months of regular use. Even gas fireplaces can accumulate soot and debris over time. If it’s been more than a year since your last sweep, your chimney is overdue. Don’t wait for visible signs—schedule a sweep now to prevent costly repairs or dangerous chimney fires. Check our seasonal sweep schedules or Runnemede-specific availability

7. Visible cracks or gaps in your Barrington or Runnemede chimney’s masonry require immediate professional attention

Cracks in the chimney crown, missing mortar joints, or deteriorating bricks are signs of structural weakness. In Barrington’s historic neighborhoods, many chimneys were built with lime mortar, which erodes faster than modern Portland cement. Gaps can allow heat to escape, increasing fire risk, or let water in, causing freeze-thaw damage in winter. The National Fire Protection Association (NFPA) requires repairs to damaged chimneys before they’re used. If you spot cracks, don’t attempt DIY fixes—hire a certified sweep to assess and repair the damage. Learn about our masonry repair services

Frequently Asked Questions