Nassau County • Long Island
{brand} — comprehensive chimney cleaning, repair, liner installation, and safety inspections for Nassau County homeowners. Owner-operated since 2001. No subcontractors.
Nassau County License #H0101570000 • Owner-operated since 2001 • 25 years serving Nassau County
Winter is tough on Nassau County chimneys. Crown cracks, flashing shifts, animals move in. Find it now before summer compounds the damage.
Full-service chimney company covering all 28 service types throughout Nassau County.

Chimney Cleaning & Sweep
Gas, oil, wood, fireplaces & stoves
$165–$295

Gas Chimney Cleaning
Optimize draft & safety
$165–$220

Oil Chimney Cleaning
Remove soot & residue
$165–$250

Wood Fireplace Chimney Cleaning
Creosote reduction & safety
$249–$295

Gas Fireplace Cleaning
Clean burners & check venting
$175–$250

Wood Stove Cleaning
Stove & flue maintenance
$195–$295

Pellet Stove Cleaning
Ash, vent & efficiency
$195–$275

Chimney Blockage Removal
Nests, debris, safe ventilation restored
Free estimate

Chimney Repair
Masonry, caps, crowns & more
Free estimate

Chimney Cap Replacement
Keep water & animals out
$255+

Chimney Crown Repair
Seal, recoat or rebuild
$395+

Chimney Chase Cover
Custom metal protection
Free estimate

Chimney Pointing
Restore mortar joints
$600–$900+

Chimney Waterproofing
Breathable protection
Free estimate

Prefab Chimney Service
Service & replacements
Free estimate

Chimney Liner Upgrade
Stainless steel solutions
$1,400+

Chimney Inspection
Level 1 & Level 2 • Written report
$165+

Chimney Inspection Before Buying a House
Level 2 • Lender-ready report
Free estimate

Emergency Chimney Service
Blocked flues • No heat • Storm damage
Free estimate

Chimney Damper Repair & Replacement
Stuck dampers • Top-sealing upgrade • Energy savings
$999+

Dryer Vent Cleaning
Lint removal • Fire prevention • Same visit as chimney
$149+

Chimney Flashing Repair
Step flashing • Counter flashing • Roof leak diagnosis
Free estimate

Carbon Monoxide Safety & Your Chimney
CO prevention • Detection • Emergency protocol
Free estimate

Smoke Coming Into House
Backdraft · Blockage · Damper · Draft diagnosis
Free estimate

Chimney Smell in House
Creosote odor · Summer smell · Musty fireplace
Free estimate

Chimney Leaking Water
Crown · Flashing · Cap · Pointing · diagnosis
Free estimate

Fall Chimney Cleaning
Pre-season · Book now · Same-week slots
$165+

Chimney Service Cost Guide
Cleaning · Repair · Liner · All services priced
$149–$1,670+

Power Washing
Driveways, decks, siding & more
$175–$895+

Oil-to-Gas Chimney Conversion
Liner required by Nassau County code
$1,670+

Chimney Rebuild
Partial & full reconstruction
$1,200–$8,000+

Animals in Chimney
Raccoons, squirrels, birds & bats
$255+

Chimney Inspection for Real Estate Agents
Level 2 • Same-week • Lender-ready report
Free estimate
J Gorman.
Oceanside, NY • December 2025
“He was true to his word on everything we discussed prior to his doing the job. He did an excellent job at a very reasonable price. We would definitely recommend DME Maintenance to ...”
★★★★★Michael Torres.
Levittown, NY • October 2025
“Douglas came out same week, found a cracked flue liner we had no idea about. Installed a stainless steel liner, cleaned up completely, and explained everything. Pricing was fair an...”
★★★★★Patricia M.
Massapequa, NY • September 2023
“Used DME Maintenance for an oil-to-gas conversion liner. No hidden charges, no surprises.”
★★★★★Based in Oceanside — same-week appointments throughout Nassau 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 Nassau County, Long Island.
DME Maintenance charges $165 for a standard gas or oil flue cleaning in Nassau County. Wood-burning fireplace chimney cleaning starts at $249. All cleanings include a full safety inspection and written report. Call 516-690-7471 for an exact quote.
Yes. DME Maintenance holds Nassau County Consumer Affairs License #H0101570000, in perfect standing since our founding in 2001. You can verify this record directly on the Nassau County consumer affairs portal.
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.
DME Maintenance installs stainless steel chimney liners starting at $1,400 in Nassau County. Final pricing depends on flue height, required diameter, and insulation requirements. Call 516-690-7471 for a free liner assessment.
Yes. Oil-to-gas conversions require a new stainless steel chimney liner under Nassau County code and appliance manufacturer requirements. DME Maintenance handles liner installation for oil-to-gas conversions county-wide.
All 124 Nassau County communities — click your town for a dedicated service page.
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