CSIA certified 4.9 (187 reviews)
(631) 625-8789
Long Island Chimney Co.
Family-owned · CSIA-certified · Since 2009

One family, one van, 17 years of Long Island chimneys.

Frank Mazella started Long Island Chimney Co. with a CSIA certification, a referral list of 40 customers, and a promise: never sell work that isn’t needed. 4,200jobs later, that’s still the whole philosophy.

Frank Mazella
Frank Mazella
Owner & CSIA Certified Sweep
Read Frank’s profile
Our story

Started in a rented garage in Carle Place.

In 2008, Frank was sweeping chimneys for his uncle’s heating company. He noticed how often homeowners were sold unnecessary liner replacements — parts that cost thousands and didn’t need replacing. He finished his CSIA certification in 2008, and a year later Long Island Chimney Co. was a one-man shop in a borrowed garage with a pickup truck.

The first job was a sweep in Hicksville. The homeowner had been quoted $3,400 for a new liner she didn’t need. Frank swept it, showed her the camera footage, and charged her $175. She told four neighbors.

17years later, we’re still family-run. Rosa handles the office. Paul, a 25-year master mason, does our tuckpointing and liner work. Chris is our CSIA-certified sweep you’ll see on your roof. Three vans, six-person crew, covers all of Nassau and Suffolk.

What hasn’t changed: if your chimney doesn’t need the work, we’ll tell you. Our reputation is built on jobs we didn’t do.

4,200+
Chimneys serviced
17 yrs
Serving Long Island
4.9/5
From 187 Google reviews
40+
Nassau + Suffolk towns
The team

Six people on payroll. You’ll meet most of them.

Rosa Mazella
Rosa Mazella
Office Manager & Customer Service

Frank's wife. Manages scheduling, annual inspection reminder campaigns, and 5-star review follow-up. If you called the office, Rosa probably answered.

Paul DiNapoli
Paul DiNapoli
Lead Repair Tech & Master Mason

25 years masonry experience. Handles all tuckpointing, crown repairs, and liner installations. Can match a 1940s mortar color from memory.

Chris Novak
Chris Novak
Service Tech, CSIA Certified Sweep

Certified chimney sweep. Handles Level I and Level II inspections. NFPA 211 certified. The guy you'll see on your roof.

What we carry

Licensed, certified, insured — proof on request.

  • CSIA Certified Chimney Sweep (CCS)
  • NFI Gas Specialist
  • EPA Lead-Safe Certified
  • NFPA 211 Compliant
  • Nassau County Dept. of Consumer Affairs
  • Suffolk County Licensed Home Improvement
  • $2M General Liability
What we stand for

Four rules we don’t break.

  1. 1
    Honest diagnoses.
    If your chimney doesn’t need the work, we say so — and write that on the estimate.
  2. 2
    Same crew, start to finish.
    The tech who quotes your job is the one who does it. No bait-and-switch sales rep.
  3. 3
    Written warranties.
    All repair work is backed in writing. Crown rebuilds = 10 years. Liners = lifetime parts, 5-year labor.
  4. 4
    Real answers at the office.
    Rosa answers the phone. If she doesn’t know, she tells you and calls back within the hour.
Free On-Site Estimate

Ready to work with the same family that’s swept 4,000+ LI chimneys?

Rosa or Frank will call you within 2 business hours to set up a free on-site estimate. No high-pressure sales. No gimmicks.

CSIA certified
NFPA 211 standard
4.9 (187 reviews)
Real LI customers
2-hour callback
During business hours

No spam. No auto-calls. Real humans only. Or call directly: (631) 625-8789

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