Ronkonkoma, NY

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Discover top-rated home service professionals in Ronkonkoma, New York. Browse 200 verified contractors for roofing, HVAC, plumbing, and more.

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Ronkonkoma, NY

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Top Contractors in Ronkonkoma, NY

Showing 1-20 of 200 contractors

Ferguson, Ronkonkoma NY (SWA)

Ferguson, Ronkonkoma NY (SWA)

921 S 2nd St, Ronkonkoma, NY 11779

5(3 reviews)

"Close to home, will definitely use again if need be."

HVACInsulationPlumbing
Hours
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Summit Home Improvements

Summit Home Improvements

7 Rolan Ct, Ronkonkoma, NY 11779

5(1 reviews)
SidingGeneral Contracting
Hours
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David Cooke Plaster Co

David Cooke Plaster Co

870 S 2nd St, Ronkonkoma, NY 11779

5(1 reviews)

"Rob great guy unload fast waited for me great place to deliver!"

DrywallGeneral Contracting
Hours
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JFM Sheet-Metal Inc

JFM Sheet-Metal Inc

2090 Pond Rd, Ronkonkoma, NY 11779

5(2 reviews)
DrywallGeneral Contracting
Hours
K P Org of Quality Paint Inc

K P Org of Quality Paint Inc

1850 Pond Rd, Ronkonkoma, NY 11779

5(2 reviews)

"Excellent company Quality painters."

Painting
Hours
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A-1 Sewer & Drain Cleaning corp

A-1 Sewer & Drain Cleaning corp

847 11th St Ste A, Ronkonkoma, NY 11779

5(5 reviews)

"Great service….highly recommended for all plumbing and cesspoolΒ ..."

PlumbingGeneral Contracting
Hours
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Executive Architectural Millwork

Executive Architectural Millwork

1 Comac Loop # 7, Ronkonkoma, NY 11779

5(4 reviews)

"Bobby and crew do awesome work."

WindowsGeneral Contracting
Hours
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Covenant Carpentry Inc

Covenant Carpentry Inc

2543 Locust Ave, Ronkonkoma, NY 11779

5(2 reviews)

"John did an excellent job installing doors and moldings in our home."

General ContractingDrywall
Hours
Ronkonkoma Paving Service

Ronkonkoma Paving Service

48 Sampson Ave, Islandia, NY 11749

5(4 reviews)
Concrete
Hours
Yoohome Coatings

Yoohome Coatings

307 Christopher St, Ronkonkoma, NY 11779

5(2 reviews)

"Jake and Leo truly outdid themselves with our garage and basement floors."

FlooringConcreteGeneral ContractingDrywall
Hours
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Park Avenue Plumbing Corporation

Park Avenue Plumbing Corporation

856 Johnson Ave # 2, Ronkonkoma, NY 11779

5(1 reviews)
Plumbing
Hours
Long Island Custom Renovations

Long Island Custom Renovations

2347 Pond Rd, Ronkonkoma, NY 11779

5(3 reviews)
SidingKitchen RemodelBathroom RemodelDecks & Patios+2 more
Hours
Rescue Cesspool Excavation Services

Rescue Cesspool Excavation Services

2083 Lakeland Ave, Ronkonkoma, NY 11779

5(3 reviews)
General ContractingDrywall
Hours
Zorn Industries Inc

Zorn Industries Inc

1863 Pond Rd # 1, Ronkonkoma, NY 11779

5(1 reviews)
General Contracting
Hours
Blarney Stone Paving & Masonry

Blarney Stone Paving & Masonry

500 Peconic St, Ronkonkoma, NY 11779

5(1 reviews)
MasonryGeneral Contracting
Hours
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Jal Plastering

Jal Plastering

60 Remington Blvd Suite B, Ronkonkoma, NY 11779

5(1 reviews)
InsulationGeneral Contracting
Hours
Joseph Bruno Plumbing & Heating

Joseph Bruno Plumbing & Heating

100 Breeze Ave, Ronkonkoma, NY 11779

5(7 reviews)
Plumbing
Hours
Jennosa Pools, Inc

Jennosa Pools, Inc

120 Raynor Ave, Ronkonkoma, NY 11779

5(22 reviews)

"They are extremely professional, competitively priced and do a great job."

Bathroom RemodelConcreteGeneral ContractingDrywall+1 more
Hours
GR Flooring Inc

GR Flooring Inc

751 Koehler Ave # 9, Ronkonkoma, NY 11779

5(58 reviews)

"GR Flooring does great work at a very fair price."

FlooringConcrete
Hours
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IAC-Indoor Air Care Professionals

IAC-Indoor Air Care Professionals

140 Gary Way Suite B, Ronkonkoma, NY 11779

5(262 reviews)

"The technicians were incredibly thorough and respectful of our space."

HVACWater Damage Restoration
Hours
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Top Rated Contractors 2026

Ronkonkoma, NY

Every contractor shown for Ronkonkoma, New York is listed with the rating and review count from its public Google Business Profile, so you can compare local professionals on the same basis. Businesses marked as claimed have confirmed their own details, which is not the same as a licence or insurance check. Confirm licensing and insurance directly, then request at least three written estimates before you hire in Ronkonkoma.

Frequently Asked Questions

Common questions about finding contractors in Ronkonkoma

Prices in Ronkonkoma depend on the trade, the size and complexity of the job, and the materials you choose. Small repairs often start in the low hundreds of dollars, while full replacements such as a roof, HVAC system, or kitchen can run from several thousand dollars upward. Request at least three written estimates for the same scope so you can compare local pricing fairly.

Start with the listings on this page, then confirm the licence directly with the licensing board that covers New York. Requirements vary by trade: some states license general contractors, while others license only electrical, plumbing, and HVAC work. Ask for the licence number and verify it yourself before signing anything.

Most listings in Ronkonkoma are aggregated from public business data, including the Google Business Profile rating and review count shown on each page, and are not individually inspected by us. A listing marked as claimed simply means the owner has confirmed control of the business record; it is not a licence or insurance check. Always verify licensing, insurance, and references before you hire.

Costs in New York depend heavily on the trade and the project. Labour rates vary by region, licensed trades such as electrical and plumbing usually cost more per hour than general labour, and emergency or after-hours work carries a premium. Statewide averages are only a starting point; get itemized quotes from local contractors for your exact scope.

Permit rules are set by the local authority that covers Ronkonkoma. Structural work, additions, and most electrical, plumbing, HVAC, and roofing replacements require a permit, while some cosmetic work does not. Ask who is pulling the permit and confirm it is issued in the correct name before work starts, because unpermitted work can complicate resale and insurance.

A deposit of roughly 10-30% of the contract price to cover materials is common in Ronkonkoma, with the balance tied to milestones in a written contract. Be cautious of anyone demanding full payment up front, large cash-only payments, or payment before the work is scheduled. A written payment schedule protects both sides.

Compare quotes on the same written scope of work, not on the bottom line alone. Check that each quote lists materials and brands, labour, permits, cleanup, and exclusions, and ask how change orders are priced. A bid that is far below the others usually means something has been left out.

A contractor contract in New York should state the full scope, materials, total price and payment schedule, estimated start and completion dates, the licence number, how changes will be approved and priced, the warranty, and who handles permits and cleanup. Read it before signing and keep a copy.

Timelines in Ronkonkoma vary widely by trade and scope, from a same-day repair to several months for a major remodel. Weather, permit queues, and material lead times all affect the schedule. Ask each contractor for a written timeline and confirm how they handle weather or inspection delays.

Read the Google review excerpts shown on each listing for patterns rather than judging only by the star average. Also check the state or provincial licensing board for complaints, ask the contractor for recent local references, and confirm they carry insurance. A single bad review matters less than a consistent theme.

Pricing in Ronkonkoma reflects local labour rates, cost of living, demand, and how far crews have to travel. Dense metro areas and high-cost regions usually run above the state average, while smaller markets can be below it. The only accurate comparison is like-for-like quotes from contractors who work in Ronkonkoma.

Document everything in writing first, including photos, dates, and the contract. Ask the contractor to fix the issue under the warranty, and if they refuse, file a complaint with the New York licensing board or consumer-protection office. You can also contact us so we can review the listing associated with that business.