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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

Carbon Monoxide & Chimney Safety in Suffolk County — What Every Homeowner Needs to Know

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.

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

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How Your Chimney Creates Carbon Monoxide Risk in Suffolk County

Carbon monoxide (CO) is produced by every fuel-burning appliance in your home — gas furnaces, boilers, water heaters, fireplaces, stoves, and oil burners all generate CO as a combustion byproduct. Under normal conditions, your chimney vents this gas safely outside. When the chimney is blocked, cracked, or improperly sized for the appliance it serves, CO has nowhere to go — and migrates silently into your living space. CO is colorless and completely odorless. You cannot detect it without a working CO detector. According to the CDC, CO poisoning sends approximately 50,000 Americans to emergency rooms annually and kills more than 400. On Long Island, the combination of older housing stock, aging clay tile liners, and natural gas appliance conversions makes chimney-related CO risk particularly significant. Annual chimney cleaning and inspection is the single most effective prevention available.

Annual chimney cleaning removes blockages that cause CO to back-draft

Gas flue inspection identifies liner deterioration before CO escapes

Stainless steel liner upgrade eliminates cracked tile CO pathways

Chimney blockage removal clears nests and debris causing CO backup

CO detector placement — every level of home, outside sleeping areas

Free CO safety assessment included with every DME Maintenance chimney service

Emergency protocol guidance — what to do when your CO alarm sounds

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) Included
Dryer Vent Cleaning $149+
Chimney Cleaning (Gas or Oil Flue) $165
Wood Fireplace Chimney Sweep $249
Chimney Cap Installation $255+
Chimney Damper (Top-Sealing) $999+
Chimney Crown Repair $395 single flue
Chimney Pointing $600–$900+
Stainless Steel Chimney Liner starting at $1,400
Chimney Repair / Blockage / Waterproofing Free Estimate
Level 2 Inspection (Home Sale) Free estimate
Emergency Chimney Service 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

Can a chimney really cause carbon monoxide poisoning?

Yes — and it is one of the most common causes. A blocked, cracked, or improperly lined chimney prevents combustion gases from venting outside. CO then migrates into living spaces. Suffolk County homes with aging clay tile liners and recent gas conversions are at elevated risk. Annual chimney inspection is the primary prevention.

What should I do if my carbon monoxide alarm goes off?

Immediately: (1) Evacuate everyone from the home — do not stop for belongings. (2) Call 911 from outside or a neighbor's home. (3) Do not re-enter until emergency services have cleared the home. (4) Call DME Maintenance at 516-690-7471 — we inspect and clear the chimney and assess liner condition before your heating system is restarted.

How often should I test my CO detectors in Suffolk County?

Test CO detectors monthly using the test button. Replace batteries annually. Replace the unit itself every 5–7 years — CO sensors degrade over time and older units may not alarm at dangerous levels. Place detectors on every level of your home and outside every sleeping area.

My furnace is new — does my chimney still need inspection for CO safety?

Yes — and especially so. New high-efficiency furnaces produce cooler, more acidic exhaust gases that deteriorate old clay tile liners faster than older equipment. A gas chimney inspection after any appliance replacement is essential. Most appliance manufacturers and Suffolk County municipalities require a stainless steel liner when installing new equipment.

What chimney conditions most commonly cause CO problems in Suffolk County homes?

The five most common causes: (1) Bird or animal nest blockage in the flue. (2) Cracked or collapsed clay tile liner sections. (3) Improperly sized flue for the appliance — common after oil-to-gas conversions. (4) Disconnected or damaged flue connector pipe. (5) Frozen condensate in high-efficiency appliance vents during extreme cold. All are preventable with annual chimney cleaning and inspection.

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 $165 for a standard gas or oil flue cleaning in Suffolk County. Wood-burning fireplace chimney cleaning starts at $195. 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.

People Also Search / Voice Search

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“Liner installed for oil-to-gas conversion. All paperwork handled.”

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“Douglas explained everything before starting. No pressure, just facts.”

Mr. Saoirse Boyle. — Lake Ronkonkoma

★★★★★ SuffolkChimney.com

“Pellet stove running properly again after the service.”

Mrs. Colleen Burke. — Sayville

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DME MAINTENANCE • Suffolk County License #H-43223