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.

Does every home in Suffolk County need chimney cleaning even without a fireplace?

Yes. Every home that heats with gas or oil has a chimney flue that vents combustion gases. Both gas and oil flues require annual inspection and periodic cleaning. Gas flues are at risk for acidic condensate damage; oil flues accumulate heavy soot. Skipping service creates carbon monoxide and fire risk.

Smoke Coming Into House Suffolk County NY | Chimney Problem Diagnosis

Why Smoke Backs Into Suffolk County Homes — 6 Common Causes

Smoke backing into the living space is one of the most alarming chimney problems a Suffolk County homeowner can encounter — and one of the most misdiagnosed. The six most common causes in Suffolk County homes: chimney blockage from bird or animal nests, a failed or stuck damper, negative air pressure, an undersized or oversized flue, cold flue syndrome on exterior walls, and debris or a damaged crown partially blocking the flue.

Chimney blockage — nests, debris, or collapsed liner material

Stuck or failed damper not opening fully

Negative air pressure pulling air down the flue

Cold flue syndrome on exterior chimneys

Flue size mismatch after oil-to-gas conversion

Partial crown obstruction reducing flue opening

Transparent Pricing — Suffolk County

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

Service	Best For	Starting Price
Chimney Inspection (Level 1)	Annual safety check — always included with cleaning at no extra charge	$185+
Dryer Vent Cleaning	Clogged dryer vents are the #1 cause of home appliance fires in the US. Annual cleaning takes under an hour and can be combined with your chimney service. From $165.	$165+
Chimney Cleaning & Sweep	See individual service pages for detailed pricing by fuel type	$185–$299
Wood Fireplace Chimney Sweep	Creosote is the leading cause of chimney fires. Annual sweeping before fireplace season keeps your family safe.	$275+
Chimney Cap Installation	A missing or broken chimney cap is an open invitation to water, birds, and squirrels. Replacement from $285 installed.	$285+
Chimney Damper (Top-Sealing)	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.	$1,100+
Chimney Crown Repair	The crown seals the top of your chimney. A cracked crown lets rain fall straight into the flue — crown repair starts at $435.	$435+
Chimney Pointing	Mortar joints last 25–30 years. When they fail, water follows. Pointing stops the damage before it gets expensive.	$660+
Stainless Steel Chimney Liner	Factory-authorized liner installation. If your home is over 20 years old or you're converting from oil to gas, a stainless steel liner is almost certainly needed.	$1,750+
Chimney Repair	Small chimney problems become big ones fast. Free on-site estimates — honest pricing, no pressure.	Free estimate
Level 2 Inspection (Home Sale)	Buying or selling in Suffolk County? A Level 2 chimney inspection satisfies lender requirements, home inspector findings, and gives buyers a clean bill of health — or an honest repair estimate before closing.	Free estimate
Emergency Chimney Service	Blocked flue. No heat. Carbon monoxide alarm. Storm damage. Call DME Maintenance at 516-690-7471 — same-week emergency chimney service across all of Suffolk County.	Free estimate
Gas Chimney Cleaning	Gas combustion leaves acidic deposits that destroy clay liners. Annual cleaning protects your system and your family.	$185
Oil Chimney Cleaning	Oil burner chimneys accumulate heavy soot that restricts airflow and causes puffbacks. Annual cleaning is your first line of defense.	$220
Gas Fireplace Cleaning	Gas fireplaces need annual cleaning too — burners clog, pilots drift, and venting can fail silently.	$195+
Wood Stove Cleaning	Wood stoves burn hotter and accumulate creosote faster than fireplaces. Annual cleaning is not optional.	$299+
Pellet Stove Cleaning	Pellet stoves are efficient but ash-intensive. Annual professional cleaning keeps burn quality high and prevents shutdowns.	$299+
Chimney Blockage Removal	A blocked chimney is a CO hazard. Birds, squirrels, raccoons, and debris can seal a flue completely. Same-week service available.	Free estimate
Chimney Chase Cover	Factory chase covers rust through in 5–10 years. A custom stainless steel replacement lasts a lifetime.	Free estimate
Chimney Waterproofing (ChimSaver)	ChimSaver protects brick and mortar from water penetration while allowing the chimney to breathe. Extends masonry life 10+ years.	Free estimate
Prefab Chimney Service	Prefab fireplaces have a lifespan. DME Maintenance diagnoses and repairs — or helps you plan replacement when repair is not cost-effective.	Free estimate
Chimney Flashing Repair	Most Suffolk County 'roof leaks' near the chimney are actually flashing failures. Free on-site diagnosis — we find the source and fix it permanently.	Free estimate
Carbon Monoxide Safety Inspection	Carbon monoxide is colorless, odorless, and kills dozens of Long Island families every year. Your chimney is the most common source. Here is what to know and what to do.	Free estimate
Smoke Problem Diagnosis	If smoke is coming into your home when the fireplace or heating system is running, stop using it immediately and call DME Maintenance at 516-690-7471.	Free estimate
Chimney Odor Diagnosis	A chimney or fireplace smell in your home — especially in summer — is almost always fixable. Call DME Maintenance at 516-690-7471.	Free estimate
Chimney Water Leak Repair	Water stains near the fireplace, wet firebox, or ceiling stains near the chimney always have a specific source. DME Maintenance finds it and fixes it. Free on-site diagnosis.	Free estimate
Fall Chimney Cleaning	The best time to clean your chimney is before you need it. Fall appointments fill fast — book your Suffolk County chimney cleaning now.	$185+
Chimney Service Cost Guide	Honest pricing for every chimney service in Suffolk County. No guesswork, no surprises. Call 516-690-7471 for a free on-site estimate.	$165–$1,750+
Power Washing	Salt air, humid summers, and Long Island winters leave driveways, siding, and decks coated in mold, algae, and grime. Power washing restores them in a single visit.	$195+
Oil-to-Gas Chimney Conversion	Switching from oil to gas heat in Suffolk County? Your existing clay tile chimney liner almost certainly won't pass inspection. DME Maintenance installs the code-required stainless steel liner — factory authorized, lifetime warranty — and coordinates directly with your plumber and gas company.	$1,750+
Chimney Rebuild	When chimney pointing and crown repair are no longer enough — when the brickwork is failing, the structure is compromised, or the chimney is leaning — a rebuild is the only permanent solution. DME Maintenance has rebuilt Suffolk County chimneys since 2001.	$1,320+
Animals in Chimney	Raccoons, squirrels, starlings, and bats all use uncapped Suffolk County chimneys as dens, nesting sites, and entry points. DME Maintenance removes nests and debris, clears the flue, and installs a stainless steel cap with animal-guard mesh that permanently ends the problem.	$285+
Real Estate Agent Inspections	Suffolk County's real estate market moves fast. Deals don't wait for chimney companies that schedule three weeks out. DME Maintenance provides same-week Level 2 chimney inspections, delivers a written report the same day, and handles repair scheduling immediately if issues are found — so your transaction stays on track.	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

Why is smoke coming into my house from the chimney?

The most common causes are a blocked flue, a stuck damper, negative air pressure, or a cold flue. Stop using the appliance and call DME Maintenance at 516-690-7471 for a same-week diagnosis.

Is smoke coming into the house dangerous?

Yes. Smoke contains carbon monoxide. If smoke is entering your living space, stop using the appliance immediately. If your CO detector has alarmed, evacuate and call 911.

What is chimney backdraft?

Backdraft occurs when air pressure causes flue gases to flow down instead of up. Common triggers include exhaust fans, new insulation, or a cold flue. A top-sealing damper and proper flue sizing prevent most backdraft.

Why does smoke come back into my house from the fireplace?

The most common causes are a blocked flue (birds, debris, creosote), a stuck or missing damper, negative air pressure in the house, a cold flue that hasn't been primed, or a poorly designed fireplace opening that's too large for the flue. DME Maintenance diagnoses the specific cause rather than guessing.

What is negative pressure and how does it cause smoke problems?

Modern tight construction — sealed windows, exhaust fans, energy improvements — can create negative air pressure inside the house. The house tries to pull replacement air from wherever it can, including down the chimney flue. Solutions include cracking a window near the fireplace, installing an air inlet, or upgrading to a sealed combustion insert.

Can I use the fireplace while waiting for repairs?

If smoke is entering the living space, do not use the fireplace until the cause has been diagnosed and corrected. Combustion gases including carbon monoxide can accompany smoke. Call DME Maintenance at 516-690-7471 for a diagnosis before the next fire.

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.

Smoke Coming Into the House? Suffolk County Chimney Diagnosis

Why Smoke Backs Into Suffolk County Homes — 6 Common Causes

Transparent Pricing — Suffolk County

Frequently Asked Questions — Suffolk County Chimney Services

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Emergency Chimney Service Suffolk County NY | Same-Day | 516-690-7471

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