On Duty Chimney Masonry Stove

10/24/2026

This is why chimney maintenance matters! ⚠️ Level 3 creosote is a thick, hardened buildup that can be difficult to remove and poses a serious chimney fire hazard. If your chimney has heavy creosote buildup, professional evaluation and specialized cleaning may be necessary.

Don't wait until there's a problem. Schedule your chimney inspection with On Duty Chimney!

10/23/2026

From scheduling a quick appointment to answering questions and providing a thorough estimate, our team works hard to make every customer feel comfortable, informed, and respected throughout the process.

Thank you for trusting On Duty Chimney with your chimney liner needs and for sharing your experience with us!

10/22/2026

We're celebrating Ben and his work anniversary with On Duty Chimney! 🎉

Thank you, Ben, for your hard work, dedication, and everything you bring to the team. We appreciate all that you do and are grateful to have you as part of the On Duty family!

Join us in congratulating Ben on a year with the team! 👏

10/21/2026

Your gas fireplace needs maintenance, too! Even though gas fireplaces don't produce the same ash and creosote buildup as wood-burning fireplaces, routine servicing is important for safe, reliable operation. 🔥 Contact On Duty Chimney to schedule your gas fireplace service!

10/19/2026

Another stove installation by the On Duty team! 🔥 A great addition to any home as temperatures start to drop. Thinking about installing a new stove? Contact us to explore your options!

10/17/2026

A fireplace can completely transform the look and feel of a room!

From the beautiful stonework to the natural wood mantel, this fireplace creates a stunning focal point that complements the entire space.

At On Duty Chimney, we specialize in fireplace construction, masonry work, and custom designs that bring your vision to life.

Thinking about adding or upgrading a fireplace in your home? Contact our team to discuss your project!

10/16/2026

Chimney safety starts from the inside!

Your chimney liner plays an important role in safely directing smoke and combustion gases out of your home while protecting the surrounding chimney structure from excessive heat.

Whether you're replacing a damaged liner or upgrading your existing system, our team at On Duty Chimney can help determine the right solution for your home.

10/15/2026

Is your wood stove ready for winter? 🔥

Our team is busy helping homeowners prepare for the colder months with professional wood stove cleanings and inspections!

Routine maintenance helps remove creosote buildup, supports proper airflow, and reduces the risk of chimney fires.

Schedule your wood stove cleaning with On Duty Chimney before burning season gets into full swing!

10/14/2026

Another stove cleaned and ready for burning season!

Regular pellet stove cleanings help remove ash and buildup, improve efficiency, and keep your heating system operating safely throughout the colder months.

Don't wait until the winter to schedule your stove maintenance!

10/13/2026

Here is something specific to our area. Many older Leominster and Fitchburg homes still have their original cast-iron throat damper, the kind that sits at the throat of the flue above the firebox, and those often seal poorly even when they are technically working. There is a better option worth knowing about: a top-mount damper. It installs at the top of the flue and seals with a rubber gasket, so it keeps far more of your conditioned air inside, and as a bonus it helps keep animals, rain, and debris out of the chimney too. The off-season is the right time to consider the upgrade, because there is no rush to grab the fastest patch. You can choose the fix that serves you for years. We break down the options here.

Stuck, rusted, or drafty damper? Learn the warning signs and why summer is the smart time to repair your chimney damper before burn season in Central MA.