Chimney Repair & Masonry in Lexington

Ranges below reflect the Lexington market — or work from the other direction with our symptom-by-symptom chimney repair cost guide. Ask for a written scope with a firm figure before a trowel comes out; where a cheaper fix will genuinely hold, the scope should say so.

If the last two rows are the ones that apply to your stack, the chimney rebuild cost guide explains what separates a partial rebuild from a full one and what moves a job between $4,000 and $15,000. A stack that has started to lean is the clearest case of those two rows.

Six parts, each with its own way of failing. When you call, naming the part gets the diagnosis halfway there.

Crown

The sloped concrete lid across the top of the stack. When it cracks, it stops shedding water and starts funneling it into the masonry below — the single most common start of chimney trouble in Fayette County.

Cap

The metal hood over the flue opening. Keeps out rain, birds, and squirrels. Cheap to replace, expensive to ignore: an open flue swallows gallons in every storm. Which lid is which — cap, chase cover or crown — is a page of its own.

Flue & liner

The passage the smoke and gases actually travel. Clay tiles crack with age and heat; older homes may have no liner at all. This is its own subject — and the highest-stakes one.

Masonry

The brick and mortar everyone can see. Mortar joints are designed to fail before the brick does — repointing them on schedule is what keeps the brick itself out of trouble.

Flashing

The metal weave where chimney meets roof. A failed flashing leak shows up as a ceiling stain near the fireplace and gets blamed on everything else first. The two layers and how the metal is re-let into the joint — step flashing, counter flashing and the reglet — are a page of their own.

Firebox & damper

Where the fire lives and the throat that controls it. Rusted dampers, gapped firebrick, and smoke-stained lintels all say something about the flue above.

Lexington's housing stock spans a century and a half, and mortar chemistry changed along the way. Pre-war brick was laid in soft, lime-rich mortar that flexes with the wall; modern Portland mixes are far harder. Put a hard modern mortar on soft old brick and the joints win every freeze-thaw argument — the brick faces shear off instead. It's the classic repointing mistake, and it's why strength, sand color, and joint profile should be matched to what's already there, whether the chimney belongs to a shotgun house near downtown or a 1990s two-story in Hamburg. The same discipline applies out in Versailles horse country, where the brick is oldest and least forgiving.

• Diagnosis before quote. The water path should be found first. Repairing the symptom without closing the source is how the same chimney gets fixed twice.
• Grind, don't smear. Failed joints should come out to sound depth before new mortar goes in. Slower, and the only way it lasts.
• Cure protection. Fresh work should be covered and, in shoulder season, scheduled around frost so it cures at full strength.
• Photos throughout. Ask to see the before, the during and the after; most owners never set foot on their own roof, and shouldn't have to take anyone's word for it.

How a tuckpointing job is done, joint by joint, from the grinding depth to the mortar match, has its own page. Not sure whether you're looking at a repointing job or a rebuild? That's exactly what a Level 2 inspection answers, with a camera and in writing. If the flue itself is the problem, the fix usually runs through a stainless liner rather than more masonry. The price band for a stainless reline, and what places one flue inside it, is broken out apart from the masonry. And once the masonry is sound, a breathable water repellent, never a sealer, is what keeps it that way.