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D’Alessandro& Son
5.0 on Google·50+ Reviews

Long Island
masonry
done right.

Stoops, patios, driveways, pool decks and cultured stone — built by three generations of Long Island masons across Nassau and Suffolk. Family owned since 1974.

Licensed & insured50+ years, 3 generations631-486-4662
Free · No Obligation

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Or call Suffolk 631-486-4662 · Nassau 516-280-9226

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50+ Years Experience

Serving Long Island since 1974

Family Owned & Operated

Two generations — Father & Son

4.9 Google

Verified Google reviews

Fully Licensed & Insured

Nassau, Suffolk & Long Beach

Authorized Installer & Material Partners

We build with the best in the trade.

Mario and Frank D'Alessandro — father and son, owners of D'Alessandro & Son Contractors, Long Island NY

Mario & Frank D’Alessandro

Father & Son · Owners · Since 1974

Meet the Family

Two generations. One family. An owner on every job.

For over 50 years, Mario and Frank D’Alessandro have set the standard for masonry across Nassau and Suffolk County. Every project is hand-checked by an owner — no subcontracted crews, no shortcuts, no surprises.

The Family Album

Fifty years of Long Island masonry, in five pictures.

Mario and Frank D'Alessandro, father and son owners of D'Alessandro & Son Contractors on Long Island

01 / 05

1974 — The Beginning

A father, a trowel, and a Long Island route

Frank D'Alessandro started laying brick and block across Nassau and Suffolk with one truck and a reputation he refused to risk. Fifty years later that same standard runs the company.

What We Build

Every surface, engineered to outlast the house.

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Client Reviews

Rated 5.0 by Long Island homeowners.

5.0

Google Reviews

Based on 50+ verified
homeowner reviews

Read all reviews
M

Michael R.

Dix Hills, NY

2 weeks ago

Mario and his crew rebuilt our front stoop and walkway in bluestone. Show up when they say they will, cleaned the site every single day, and the finish work is honestly better than we expected. Neighbors have already asked who did it.

J

Jennifer P.

Huntington, NY

1 month ago

We got three estimates for a paver pool deck. D'Alessandro wasn't the cheapest but Frank was the only owner who actually came out, measured, and explained the base prep. Now I understand why the others were cheaper. The deck is stunning.

A

Anthony D.

Massapequa, NY

1 month ago

Cultured stone facade on the front of the house. The transformation is unreal. Third generation family business and it shows — everyone on the crew clearly took pride in the job. Would 100% hire again.

S

Susan K.

Smithtown, NY

2 months ago

Concrete driveway replacement. Straight quote, no surprises, done in the timeline they promised. Two winters in and there's not a single crack. Real craftsmen.

R

Robert G.

Garden City, NY

3 months ago

Built us an outdoor kitchen with a firepit and paver patio. The design suggestions from Mario made the space 10x better than what we originally sketched. Fair price for the level of work.

C

Christina L.

Commack, NY

3 months ago

Retaining wall and new front walkway. They saved us from a bad drainage situation the previous contractor created. Clean, professional, and the wall looks like it grew out of the yard.

Recent Work

A portfolio built stone by stone.

See the full portfolio
Outdoor living area with paver patio
Outdoor living area with paver patio
Paver pool deck surround
Paver pool deck surround
Bluestone patio with mortared joints
Bluestone patio with mortared joints
Natural stone façade on a two-story home
Natural stone façade on a two-story home
Semi-gloss gray pavers with Belgium block trim
Semi-gloss gray pavers with Belgium block trim
Outdoor firepit and grill built into pavers
Outdoor firepit and grill built into pavers
Luxury pool paver patio
Luxury pool paver patio
Interlocking paver backyard patio
Interlocking paver backyard patio

Ready to build something that lasts?

Free, honest estimates. An owner walks every site. Serving Nassau & Suffolk since 1974.

Request a Free Estimate

Two Long Island Offices

Local to Nassau & Suffolk.

Family-run since 1974 with offices in Dix Hills and Westbury — serving every town from Great Neck to Montauk.

Main Office

D’Alessandro & Son Suffolk County Office

5 Dillon Drive, Dix Hills, NY 11746

Mon–Fri 8a–6p · Sat 9a–2p

Satellite Office

D’Alessandro & Son Nassau County Office

2 Butler St, Westbury, NY 11590

Mon–Fri 8a–6p · Sat 9a–2p

Suffolk631-486-4662Free EstimateGet Yours Nassau516-280-9226