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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 Flashing Repair in Suffolk County — Stop the Leak at the Source

Most Suffolk County 'roof leaks' near the chimney are actually flashing failures. Free on-site diagnosis — we find the source and fix it permanently.

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

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Chimney Flashing — The #1 Source of Chimney-Area Leaks in Suffolk County

When Suffolk County homeowners call about a roof leak near the chimney, the culprit is chimney flashing in the majority of cases — not the roof shingles. Chimney flashing is the metal system that seals the joint between the chimney and the roof surface. It consists of step flashing (L-shaped pieces woven between shingles along the chimney sides), counter flashing (embedded into the chimney mortar joints to cap the step flashing), and a saddle or cricket behind the chimney on steeper-pitched roofs. Any one of these components can fail: mortar cracks release counter flashing, step flashing corrodes, previous repairs using caulk or roofing cement fail within one to two seasons. DME Maintenance diagnoses the exact failure point and repairs or replaces only what has failed — no unnecessary reroofing.

Full flashing system inspection — step, counter, base, and saddle/cricket

Mortar joint re-embedding of counter flashing where it has pulled loose

Step flashing replacement where corrosion or previous improper repair has failed

Saddle/cricket installation behind wide chimneys — required for proper water diversion

Combined with chimney waterproofing for permanent protection

Free on-site diagnosis — we identify the exact source before quoting any work

Written estimate with photos — clear scope before any work begins

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 in Suffolk County — Full 21-Point Safety Check $185+
Dryer Vent Cleaning in Suffolk County — Fire Prevention & Efficiency $165+
Chimney Cleaning & Chimney Sweep in Suffolk County $185
Suffolk Wood Fireplace Chimney Cleaning — Creosote Removal $275+
Suffolk Chimney Cap — Keep Water & Animals Out $285+
Chimney Damper Repair & Top-Sealing Damper Installation — Suffolk County $1,100+
Suffolk Chimney Crown — Seal, Recoat or Rebuild $435+
Chimney Pointing in Suffolk County — Restore Mortar Joints $660+
Stainless Steel Chimney Liner Upgrade — Suffolk County $1,750+
Chimney Repair in Suffolk County — Pointing, Crowns, Flashing & More Free estimate
Chimney Inspection for Home Buyers & Sellers — Suffolk County Free estimate
Emergency Chimney Service in Suffolk County — Same-Day Response Free estimate
Suffolk Gas Chimney Cleaning — Optimize Draft & Safety $185
Suffolk Oil Chimney Cleaning — Remove Soot & Residue $185
Suffolk Gas Fireplace Cleaning — Burners, Venting & Safety $195+
Suffolk Wood Stove Cleaning — Stove & Flue Maintenance $215+
Suffolk Pellet Stove Cleaning — Ash, Vent & Efficiency $215+
Suffolk Chimney Blockage Removal — Nests, Debris & Obstructions Free estimate
Suffolk Chimney Chase Cover — Custom Metal Protection Free estimate
Chimney Waterproofing with ChimSaver — Breathable Protection Free estimate
Prefab Chimney Repair & Replacement Suffolk County Free estimate
Chimney Flashing Repair in Suffolk County — Stop the Leak at the Source Free estimate
Carbon Monoxide & Chimney Safety in Suffolk County — What Every Homeowner Needs to Know Free estimate
Smoke Coming Into the House? Suffolk County Chimney Diagnosis Free estimate
Chimney Smell in Your Suffolk County Home — What It Means & How to Fix It Free estimate
Chimney Leaking Water in Suffolk County — Find the Source, Fix It Right Free estimate
Fall Chimney Cleaning in Suffolk County — Book Before the Rush $185+
Suffolk County Chimney Service Cost Guide — What Everything Costs in 2026 $165–$1,750+
Professional Power Washing in Suffolk County, NY $195+
Oil-to-Gas Chimney Conversion in Suffolk County — Liner Required by Code $1,750+
Chimney Rebuild in Suffolk County — Partial & Full Reconstruction $1,320+
Animals in Your Chimney — Suffolk County Removal & Cap Installation $285+
Chimney Inspections for Suffolk County Real Estate Transactions 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

What is chimney flashing and why does it leak?

Chimney flashing is the metal system sealing the joint between your chimney and roof. It consists of step flashing along the chimney sides and counter flashing embedded into the chimney mortar joints. It leaks when mortar cracks release the counter flashing, step flashing corrodes, or previous caulk repairs dry out and crack — typically within 1–3 years.

How do I know if my roof leak is actually a chimney flashing problem?

If water staining appears on your ceiling or walls near the chimney base — especially during rain but not snow melt — the leak source is almost always chimney flashing, not the roof shingles. DME Maintenance provides free on-site diagnosis to confirm the exact source before any repair work begins. Call 516-690-7471.

How much does chimney flashing repair cost in Suffolk County?

Chimney flashing repair cost varies significantly by the extent of failure and whether counter flashing re-embedding, step flashing replacement, or saddle/cricket work is needed. DME Maintenance provides free on-site estimates with written scope and photos — no obligation. Call 516-690-7471 to schedule.

Can I fix chimney flashing myself with caulk or roofing cement?

Caulk and roofing cement are temporary measures that typically last 1–3 seasons before drying and cracking. They do not address the root cause — usually counter flashing that has pulled free from the chimney mortar joint. DME Maintenance re-embeds counter flashing into fresh mortar for a permanent repair.

Should chimney flashing repair be combined with other work?

Often yes. Flashing failures usually accompany deteriorated mortar joints — the same moisture that compromised the flashing has worked into the masonry. DME Maintenance assesses the full chimney during every flashing repair and recommends combining with ChimSaver waterproofing to protect the repaired surfaces.

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

★★★★★ Nextdoor

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

Ruairi Healy. — Islip

★★★★★ Yelp

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

Mr. Saoirse Boyle. — Lake Ronkonkoma

★★★★★ SuffolkChimney.com

“Stainless liner installed for the gas conversion. Sized right, done in a day.”

Mrs. Colleen Burke. — Sayville

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

DME MAINTENANCE • Suffolk County License #H-43223