Chimneys & Masonry Repair in Suffolk County, Long Island — APM O'Neill & Sons

Chimney work
done right.

Chimney rebuilds above the roofline, tuckpointing, crown seals, cap replacement, and flashing coordination.

35
Years serving Long Island
500+
Projects completed
4.9
Google review rating
Lic # 58161-H
NY License · Fully insured
What's built in

Details that separate
good work from great.

Four disciplines · One crew
№01

Above-roofline rebuild

Full tear-down and rebuild from the flashing up with matched brick.

Included in every build
№02

Crown & cap

Cast concrete crowns with drip edge and stainless caps.

Included in every build
№03

Tuckpointing

Old mortar ground out to depth, repointed with matched color.

Included in every build
№04

Flashing coordination

Step and counter flashing installed with your roofer or ours.

Included in every build
Why homeowners choose us

Why hire us
for Chimneys & Masonry Repair.

Licensed & insured

Suffolk County HIC License # 58161-H with full liability and workers' comp coverage.

35 years on Long Island

Family-owned and operating across Suffolk County since 1991.

Workmanship warranty

Every installation is backed in writing — base prep, drainage, and finish work included.

Free written estimate

On-site measure and a clear, itemized proposal before any work is scheduled.

The build · Five stages

Five steps. One crew.

A cohesive process engineered for durability and professional delivery.

  1. 01
    The Discovery

    Free estimate

    On-site measure, scope, and written proposal — no pressure, no upsell.

  2. 02
    The Blueprint

    Design & materials

    Layout, samples, and finishes confirmed before we mobilize.

  3. 03
    The Logistics

    Build

    Our own licensed crews — no subs — on-site daily until it's done right.

  4. 04
    The Build

    Walk-through

    Punch list closed, site cleaned, and written workmanship warranty issued.

Est. 1991 · Lic # 58161-H
What clients say · Verified Google reviews

Straight from
our neighbors.

4.9/ 5 average

Rated 4.9 on Google by homeowners across Suffolk County. Every project is warrantied in writing and completed by our own crew — no subs.

Read all reviews on Google

Ready to get started? Free on-site estimates across Suffolk County.

(631) 480-3238
Frequently Asked

Answers before
you call.

01

How do I know if my chimney needs repointing?

If mortar joints are recessed more than 1/4" or crumble when you scratch them, it's time.

02

Do you rebuild all the way down?

Only if needed — most rebuilds are above the roofline where weather exposure is worst.

03

How much does a chimney rebuild cost?

Above-roofline rebuilds typically run $3,500–$9,000 depending on height, brick, and access. Crowns and caps alone are far less.

04

How do I know my chimney needs work?

Spalling brick, crumbling joints, a cracked crown, or water stains on the ceiling near the chimney chase are the usual signs.

05

Do you handle flue liners?

We coordinate liner replacement with a certified installer as part of the rebuild.

Financing Available

Build now.
Pay monthly.

Flexible monthly payment plans for patios, driveways, and outdoor living projects across Suffolk County. Licensed & insured. Free estimates.

60-120mo
Terms
Hearth
Lending Partner
Fast
Approval
Outdoor living space with patio built by APM O'Neill & Sons

Financing provided by Hearth. 60-120 month terms. Subject to credit approval. Rates and terms vary by lender.