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DME MAINTENANCE • ESTABLISHED 2001 • PERFECT RECORD WITH SUFFOLK COUNTY CONSUMER AFFAIRS
SUFFOLK LICENSE #H-43223
SUFFOLKCHIMNEY.COM

DME MAINTENANCE

Suffolk County • Long Island

Chimney Damper Repair & Top-Sealing Damper Installation — Suffolk County

Cold drafts, stuck dampers, smoke smell in summer — all fixed with a top-sealing damper. Suffolk County's most overlooked fireplace upgrade. From $275 installed.

DME MAINTENANCE • ESTABLISHED 2001 • SUFFOLK LICENSE #H-43223

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Why Suffolk County Homeowners Replace Their Chimney Dampers

The chimney damper is the only movable component in your chimney system — and the one most likely to fail. Throat dampers (the traditional cast-iron plate inside the firebox) warp from heat, rust from moisture, and eventually stop sealing. When a throat damper fails to close fully, heated or cooled air escapes up the chimney 24 hours a day. The Department of Energy estimates a failed damper can add $220–$440 per year to heating and cooling costs in a Long Island home. Top-sealing dampers — installed at the top of the flue rather than inside the firebox — seal the chimney from above with a rubber gasket, eliminating both the draft problem and the moisture and animal entry that a failed throat damper allows. DME Maintenance installs top-sealing dampers county-wide starting at $1,100.

Top-sealing damper installation — seals flue from above with rubber gasket

Repairs stuck or warped throat dampers — firebox-level cast iron dampers

Eliminates cold drafts in winter and chimney odor in summer

Pairs with chimney cap replacement for complete top protection

Reduces heating and cooling costs — Energy Department estimates $220–$440/yr savings

Prevents animal and insect entry that a failed throat damper allows

Same-week installation — most jobs completed in under two hours

Transparent Pricing — Suffolk County

We publish our pricing because we have nothing to hide. Free estimates on all repair work.

Service Starting Price
Chimney Inspection (Level 1) $185+
Dryer Vent Cleaning $165+
Chimney Cleaning & Sweep $185–$299
Wood Fireplace Chimney Sweep $275+
Chimney Cap Installation $285+
Chimney Damper (Top-Sealing) $1,100+
Chimney Crown Repair $435+
Chimney Pointing $660+
Stainless Steel Chimney Liner $1,750+
Chimney Repair Free estimate
Level 2 Inspection (Home Sale) Free estimate
Emergency Chimney Service Free estimate
Gas Chimney Cleaning $185
Oil Chimney Cleaning $220
Gas Fireplace Cleaning $195+
Wood Stove Cleaning $299+
Pellet Stove Cleaning $299+
Chimney Blockage Removal Free estimate
Chimney Chase Cover Free estimate
Chimney Waterproofing (ChimSaver) Free estimate
Prefab Chimney Service Free estimate
Chimney Flashing Repair Free estimate
Carbon Monoxide Safety Inspection Free estimate
Smoke Problem Diagnosis Free estimate
Chimney Odor Diagnosis Free estimate
Chimney Water Leak Repair Free estimate
Fall Chimney Cleaning $185+
Chimney Service Cost Guide $165–$1,750+
Power Washing $195+
Oil-to-Gas Chimney Conversion $1,750+
Chimney Rebuild $1,320+
Animals in Chimney $285+
Real Estate Agent Inspections Free estimate

All repair work quoted free on-site. Prices are starting prices for standard Suffolk County conditions.

Frequently Asked Questions — Suffolk County Chimney Services

How much does chimney damper repair or replacement cost in Suffolk County?

DME Maintenance installs top-sealing dampers starting at $1,100 in Suffolk County. Throat damper repair is quoted on-site after inspection — call 516-690-7471. Top-sealing dampers are almost always the better long-term value: they seal tighter, last longer, and solve the summer odor and winter draft problem simultaneously.

What is the difference between a throat damper and a top-sealing damper?

A throat damper is the traditional cast-iron plate inside your firebox, just above the fire. A top-sealing damper installs at the very top of the flue and uses a rubber gasket to seal the chimney from above. Top-sealing dampers provide a far tighter seal, prevent animal entry, and eliminate summer odors — something a throat damper cannot do.

Why is cold air coming down my chimney even when the damper is closed?

A throat damper that appears closed rarely seals fully — the cast iron warps from years of heat exposure and leaves gaps. Cold air falls through these gaps continuously. A top-sealing damper eliminates this entirely by sealing the flue at the top with a rubber gasket rated for tight closure.

My fireplace smells like smoke in summer — is the damper the problem?

Usually yes. In summer, air-conditioned homes create negative pressure that draws air down the flue — pulling creosote and moisture odors with it. A failed or partially open throat damper has no defense against this. A top-sealing damper stops it completely, and an annual chimney cleaning removes the creosote that causes the odor.

Can I replace a chimney damper myself?

Throat damper replacement requires working inside a firebox and fitting a specific throat size — mistakes create a permanent draft problem. Top-sealing damper installation requires roof access and proper fit to your flue tile. DME Maintenance installs both types in Suffolk County — most jobs completed in under two hours. Call 516-690-7471.

What chimney services does DME Maintenance provide in Suffolk County?

DME Maintenance provides chimney cleaning (gas, oil, wood, fireplace, stove, pellet), chimney repair (pointing, crown, flashing, cap, chase cover, waterproofing), stainless steel chimney liner installation, prefab chimney service, and chimney blockage removal throughout Suffolk County, Long Island.

How much does chimney cleaning cost in Suffolk County?

DME Maintenance charges $185 for a standard gas or oil flue cleaning in Suffolk County. Wood-burning fireplace chimney cleaning starts at $275. All cleanings include a full safety inspection and written report. Call 516-690-7471 for an exact quote.

Is DME Maintenance licensed in Suffolk County?

Yes. DME Maintenance holds Suffolk County Consumer Affairs License #H-43223, in perfect standing since our founding in 2001. You can verify this record directly on the Suffolk County consumer affairs portal.

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Owner-operated since 2001. No subcontractors. No call centers.

DME MAINTENANCE • Suffolk County License #H-43223