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Proudly American · Family owned and run in Spring Hill

(352) 663-0381

Top-Sealing Damper Installation in Spring Hill, FL

A damper that seals the flue at the top, opened by a cable below.

  • Available for same-day service
  • Fully licensed and insured
  • Family owned and run
  • Locally owned and operated

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Same-day service available, call now

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10% Off Work Booked in the 72 Hours After Your Inspection

Book a top damper within 72 hours of the free inspection and take 10% off.

What You Can Count On

A top sealing damper is a spring-loaded lid mounted on top of the flue and worked by a cable from the fireplace below. Top sealing damper installation in Spring Hill replaces a rusted throat damper that no longer closes. The rubber seal keeps out drafts, rain, insects and animals when the fireplace is cold.

  • Family owned and run

    Before we leave, you are shown how to open and close the new damper.

  • Upfront, honest pricing

    The damper, cap and installation are itemized first.

  • Workmanship warranty

    The damper and its cable come with our workmanship warranty.

How a Chimney Top Damper Works

A chimney top damper sits on the top of the flue, usually clamped to the flue tile or fixed to the crown. A spring holds it open; a stainless cable runs down the flue to a handle in the firebox that pulls it shut against a silicone or rubber gasket. Many models, sometimes called a top mount damper, include a mesh screen and rain cap.

Because it seals at the top, the whole flue stays dry and closed off when the fireplace is not in use, which helps in humid weather and keeps cooled air from escaping up the chimney.

Chimney Top Damper Installation

Chimney top damper installation starts with measuring the flue top. We mount the damper, run the cable to a bracket in the firebox, and test it opens and closes fully. The old throat damper is left fully open or removed so it does not block the smoke path.

The handle must be pulled open before any fire. We show you how it works and fix the handle where you will see it.

Problems We Find and Fix

Rusted throat damper
It no longer seals. A top damper takes over the job from above.
Humid air and odor
An open flue lets damp air in. A sealed top keeps it out.
Animals in the flue
A closed top damper with a cap keeps them out.

Repair Options

Throat damper rusted or warped

Install a top sealing damper

Leave the old damper fully open.

Throat damper sound but loose

Repair the throat damper

See the damper repair page.

Parts and Materials

Stainless top damper
Spring-loaded lid with a gasket and cable.
Cap and screen
Built in on many models or added separately.

Request Your Free Spring Hill Inspection

Leave your details and we will call back to pick a time that suits you.

(352) 663-0381
  • Free inspection and a written estimate
  • Same-day service available
  • Family owned and run in Spring Hill

Tell us what the chimney or fireplace is doing and we will phone to arrange the free inspection.

What Affects the Price

Flue shape and size
Some flues need an adapter or a crown-mounted model.
Cap included or separate
Combined units replace the existing cap.

Signs It Is Time

An old throat damper above the firebox rusts, warps and stops sealing, and replacing it in place is awkward. A top sealing damper solves that from above: a spring-loaded lid on top of the flue, opened and closed with a cable that runs down to the fireplace. It closes tight when the fireplace is cold and keeps rain and animals out.

  • A throat damper that is rusted, stuck or warped
  • Drafts or humid air coming from the fireplace
  • Odors from the flue in humid weather
  • Birds or insects getting into the flue

Questions and Answers

What is a top sealing damper?
A top sealing damper is a lid mounted on top of the chimney flue that closes against a gasket. A cable down to the fireplace opens and closes it. It replaces a rusted throat damper and keeps rain, animals and drafts out when the fireplace is cold.
Is a top damper better than a throat damper?
A top damper seals more tightly and keeps the whole flue dry and closed off, while a throat damper only closes the bottom. A top damper also blocks animals and insects. A sound throat damper still works, but a rusted one is easier to replace with a top unit.
Can a chimney cap and damper be combined?
Yes. Many top sealing dampers include a mesh screen and rain cap in one unit. The combined unit replaces the existing cap on that flue. On a chimney with several flues, each flue gets its own damper or a separate cap.
Should the fireplace damper be open or closed?
Keep the damper closed when the fireplace is cold, so cooled indoor air stays in and humid outdoor air stays out. Open it fully before lighting a fire, and leave it open until the ashes are completely cold, because a closed damper over hot embers sends smoke and carbon monoxide into the room.

Proudly American

Run by a Spring Hill family: experienced hands, a written estimate before work starts and a workmanship warranty on our repairs.

Call Now (352) 663-0381

Equipment Brands We Install and Service

RutlandCopperfield Chimney SupplyHeatilatorHeat & GloDuraVentOlympia Chimney and Venting

Seal the Flue at the Top

A top damper that closes tight and keeps the weather out.

Call Now (352) 663-0381