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Monday 8am - 4pm Tuesday 8am - 4pm Wednesday 8am - 4pm Thursday 8am - 4pm Friday 8am - 4pm

High's Chimney Service

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United States
Gaithersburg, MD
High's Chimney Service

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Maryland's, D.C.'s, & Northern Virginia's premier chimney service company. High's Chimney Service, Inc.

is a full service chimney company operating in Maryland, D.C., and Northern Virginia. As an american certified chimney services company, we are certified by the Chimney Safety Institute of American, the CSIA, Member of the National Chimney Sweep Guild, the National Fireplace Institute and the Pennsylvania Guild of Professional Chimney Sweeps.

10/29/2026

As we head into the colder months, you may be getting ready to light your fireplace for the first time this season.But before you do, it's important to have you

10/28/2026

Your chimney may look fine from the ground, but hidden damage can tell a different story.

This customer’s chimney looked fine from below. Up close, the chase cover was rusted and deteriorating. A damaged chase cover can let water in, which may lead to leaks, rotting wood, mold, and other costly repairs.

10/28/2026

Installers, bricklayers/ masons , helpers, technicians & sales reps.

10/27/2026

You think the wood is what the overnight burn costs you.

Creosote isn't soot or dirt. It's unburned wood gas that never got hot enough to finish burning, so it drifts up the flue and condenses onto cold masonry, the same way steam beads on a bathroom mirror. Any flue gas dropping below about 250°F begins laying it down, and strangling the air control to drag a fire through the night does exactly that for eight hours straight. Think of it less as slowing the fire and more as running a tiny factory that turns firewood into fuel and stacks that fuel above your ceiling.

There are three grades, and only the first two go easy on you. Stage one is grey flake that a brush sweeps right off. Stage two is crunchy black buildup laced with tar. Stage three is a hard glossy glaze that no brush will ever shift, and removing it means a rotary chain whip or a chemical treatment at several times the cost of a normal sweep. Wet wood and a closed-down air control are the two quickest ways to get there.

The Chimney Safety Institute of America sets the danger mark at one eighth of an inch, thinner than a nickel and well within reach after a single winter of damped-down fires. Light that off and flue temperatures blow past 2,000°F, enough to crack clay liner tiles and open a straight route to the framing behind them. In an average year the NFPA logs more than 20,000 chimney fires in US homes, with creosote the leading cause, and plenty of those burns go unnoticed because a flue fire short on air moves slow and quiet while it quietly wrecks the liner.

The other approach costs nothing and treats the cause rather than the symptom. Season your wood below 20 percent moisture and confirm it with a $25 meter instead of eyeballing the bark, then run small, hot fires with the air open rather than one big smothered one. EPA Burn Wise sums it up in five words: never let a fire smolder. And if you truly need overnight heat, an insulated stainless liner keeps flue gas hot enough to stay a gas all the way up, which is a one-time fix, not a habit you repeat every night. [P273F]

10/27/2026

The clean sweep starts before we touch the chimney. ✨ The same care at every stop. 🏠

We protect your floors, keep our tools neatly stored, and take care of your home every step of the way.

10/26/2026

🔥 YOUR CHIMNEY LOOKS CLEAN… BUT IS IT REALLY? 👀

What you can’t see inside your chimney could be the biggest concern!

🏠 This brick chimney looked great from the outside, but the wood stove liner had accumulated soot and needed a thorough sweeping.

🧹 Our technician uses a professional rotary brush to clean the liner and remove buildup left behind from burning wood.

⚠️ A clean-looking chimney doesn’t always mean a clean chimney!

Before you fire up your wood stove this fall and winter, make sure your chimney is ready.

📞 301-519-3500
🌐 HighsChimney.com

⭐ 45+ Years of Trusted Service
✔️ Licensed & Insured

Creative by: Jeanne ✨ JJ Media

10/26/2026

From decorating with jack-o-lanterns to costume parties and trick-or-treating, many hallmarks of present fire hazards.

Nearly half (47%) of U.S. home fires occurred because decorations were too close to a heat source; approximately one-third (33%) started with candles.

Learn how to keep Halloween festively spooky and avoid truly scary fire hazards: https://nfpa.social/48at9Ru.

10/26/2026

A little work at the top and inside makes a big difference. We installed a new chimney crown and liner to help keep this system in great shape and ready for use.

10/24/2026

Fire Prevention Week is a reminder that home safety starts with everyday choices.

Before fireplace season is in full swing, take time to think about your chimney, fireplace and dryer vent systems.

Schedule a chimney inspection with a CSIA Certified Chimney Sweep® and help keep fire safety top of mind.

10/23/2026

Keep your home safe and cozy.

Address

7914 Queenair Drive
Gaithersburg, MD
20879

Opening Hours

Monday	8am - 4pm
Tuesday	8am - 4pm
Wednesday	8am - 4pm
Thursday	8am - 4pm
Friday	8am - 4pm

Telephone

+13014470277

Website

https://www.highschimney.com/

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