What Gaithersburg Homeowners Say About Hearthstone Chimney Co.
We’ve been sweeping chimneys in Gaithersburg since 1984, and we’ve learned that a review only counts if it’s earned the hard way: by showing up on time, doing the work right, and standing behind it when something needs attention. No review farm, no incentives, no follow-up emails begging for stars. Just neighbors talking to neighbors about what actually happened when we came to their house.
Recent Reviews
We bought a place in Quince Orchard last fall and the inspector said the chimney “looked fine.” Russell’s crew ran a camera up anyway and found a cracked flue liner that would’ve been a real problem come January. They showed us the photos, explained our options without pushing the most expensive fix, and had it sorted in one day. The 90-Day Done Right Promise wasn’t just paper - they came back to check the seal after the first hard freeze.
Nathan A., Quince Orchard, Gaithersburg
Our fireplace was smoking into the living room every time we lit it. Another company quoted us $3,800 for a full liner replacement. Hearthstone came out for a second opinion - free, like they advertise - and found the damper was installed backwards by whoever flipped the house. Fixed it for a fraction of that quote. Kevin Q. doesn’t forget a company that saves him four grand.
Kevin Q., Kentlands, Gaithersburg
I’ve got a 1920s farmhouse out near Washington Grove with a chimney that hasn’t been right since we moved in. Three other sweeps in Gaithersburg told me different stories about what was wrong. Russell’s technician spent forty minutes with the camera, gave me a photo report I could actually understand, and pointed out which issues were urgent and which could wait. No panic, no upsell. Just straight talk about a chimney that’s older than my grandfather.
Paige P., Washington Grove area, Gaithersburg
The cap blew off during that windstorm in March and we had water coming straight down the flue into the firebox. Called at 8 PM on a Sunday expecting voicemail - got a live person who scheduled us for Tuesday morning. Technician was uniformed, background-checked, all of it like they say. New Gelco cap went on, crown got sealed, and the price matched the estimate exactly. A square deal, no surprises on the bill.
Kevin V., Lakelands, Gaithersburg
We’d been putting off a sweep for two years because I figured they’d find ten thousand dollars of “necessary” work. Russell’s crew swept it, camera-inspected it, and told us the liner had another five seasons in it if we kept up with maintenance. Honest assessment cost me $89 for the Seasonal Tune-Up. Already booked next year’s appointment.
Nathan A., Quince Orchard, Gaithersburg
My mother’s in her eighties, lives in the old part of Gaithersburg near the fairgrounds, and the chimney hadn’t been touched since my dad passed. I called worried they’d take advantage of her. Instead, the technician walked her through every photo, explained the carbon monoxide risk in plain terms she understood, and applied the senior discount without us asking. The 5% off helped, but the patience meant more. Done right - and they stand behind it.
Paige P., Gaithersburg
Why Customers Trust Us
Every review comes back to the same few things, and that’s not an accident. We’ve spent 42 years building a company that plans to be in Gaithersburg for thirty more, and you don’t get there by cutting corners on people’s homes.
The camera inspection with photos you can see and a plain-English verdict - that’s not a premium add-on, it’s standard. The no-hassle upfront pricing where the estimate matches the invoice - that’s how we operate, not a promotion. The 90-Day Done Right Promise in writing with no arguing, governed by our K.E.Y.S. code: Krafted right, Every time, Your home first, Standing behind it. That’s the Keystone Standard, and it’s been in place since before most of our competitors opened their doors.
Our technicians are background-checked, uniformed, and equipped with professional-grade materials from DuraFlex, HeatShield, Gelco, Olympia Chimney, Famco, and Copperfield. Most jobs finish in a single visit. And when you call (301) 719-5236, a live person answers - 24 hours a day, 7 days a week. No voicemail, no callback queue, no app.
We’re not the cheapest sweep in Montgomery County. We’re the one you’ll call back next year, and the year after that. Call (301) 719-5236 to book your inspection or ask about our current offers: $50 off any repair over $250, free second opinions on written estimates, $89 Seasonal Tune-Up, and permanent 5% senior and veteran discounts.
Written by Russell Haines, Owner at Hearthstone Chimney Co., serving Gaithersburg since 1984.