24 hour emergency service available. You are just a phone call away. (631) 543-5619

We've got you covered.

We specialize in residential and commercial plumbing, heating and air conditioning. Let us help you — our years of experience make all the difference.

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Family owned and operated 24 hour emergency service Master Licensed and Fully Insured
We've got you covered.
What we do

Plumbing, heating and cooling.

Bonded Mechanical Corp is a family owned and operated business that has been providing plumbing, boiler and HVAC services to residential and commercial customers in the Long Island area. Our friendly cooling and heating technicians offer a wide range of services and products to fit any budget.

Air conditioning services

Maintenance, repair and installation. Whether you are installing a new central air conditioning system or just upgrading your existing air conditioner, we have a dedicated AC specialist to help you — and with proper sizing and implementation, you will have a system with great reliability and longevity.

Mini split services

Ductless mini split installation, maintenance and repair. Our service is backed by an A+ level installation and a 2-year labor warranty, and quality control testing is performed after every install to guarantee the system is functioning effortlessly.

Heating services

We specialize in oil and gas heating systems. We repair, maintain and install all types of heating systems — steam, forced hot water and forced warm air — in Nassau and Suffolk County, including boilers, furnaces and ductless and unitary heat pump systems.

Oil to gas conversion

Our experts have been converting Suffolk County homes from oil to natural gas for over twenty years. We coordinate with the utility company and the building department to get the proper permits, size the new equipment, line the chimney and remove the old tank.

Plumbing and water heaters

Potable water and sanitary drainage systems, plus tank type and tankless water heaters in gas, oil or electric. A person who designs and installs these systems to protect your health is known as a master plumber — call a licensed professional for your health's sake.

Commercial services

Plumbing, boiler and HVAC service for commercial customers across Long Island. We service, repair, maintain and install most major brands of boilers and HVAC equipment, and all installations comply with New York plumbing and mechanical codes.

Why us

Let us help you. Our years of experience make all the difference.

Professionalism

When you hire one of our HVAC technicians to service your home, our technicians will provide prompt and efficient service.

Competency

Our technicians meet our strict requirements to protect our clients and ensure their satisfaction.

Achievement

Our certified technicians have your safety, welfare and comfort in mind at all times.

Our guarantee

At Bonded, your satisfaction is our priority. By using our services our technicians will work to ensure your A/C and heating systems are working smoothly and efficiently.

Our story

A most trusted mechanical company.

Bonded Mechanical Corp. is committed to performing expert quality plumbing, heating and AC repair, maintenance and installations throughout your city. We are a family owned and operated HVAC company. We know that our existence depends on your support and we want to thank you. The highest compliment we can receive is your referrals, and we truly appreciate your support.

We have over 40 years of experience, and we take pride in every job. When you call us to discuss your HVAC needs you can be assured that we will personally follow up on every project to make sure your residential needs have been met.

Our technicians are uniquely qualified to handle all of your HVAC needs. We have licensed master plumbers and licensed electricians on staff. We are also EPA universal refrigerant certified. All installations comply with New York plumbing and mechanical codes, and we use industry-standard HVAC parts and systems for maximum reliability.

Since 2000
Serving Long Island
40+ yrs
Of experience
A+
Better Business Bureau
A most trusted mechanical company.
Reviews

Testimonials and reviews.

★★★★★

“Had 2 ductless air conditioners installed. Very clean, courteous, and professional workers. Completed job on time. Did exactly what they said they would do.”

Joe

Babylon, NY

★★★★★

“Ron and his two sons are always professional, honest, and do great work. They are a pleasure to do business with. I highly recommend them.”

John DePaul

East Northport, NY

★★★★★

“Quick, Honest, Fair. Had them service my boiler and install a new ductless system. They completed the work quickly, with no mess. Wouldn't go with anyone else.”

Philip

Rocky Point, NY

★★★★★

“I had a new hot water storage tank installed. The work was done in a timely fashion. The installation was clean and neat. The guys went the extra mile to make sure that everything was working well. I would not hesitate to recommend them.”

Ira Miller

★★★★★

“Amazing experience with this company. Ron and team members were very professional and did an amazing job! I will definitely be calling them back in the future and you should too! Thank you Bonded Mechanical for everything.”

Peter

Elwood, NY

★★★★★

“I just moved to Smithtown and needed a split unit in my bedroom for heat and air. I called Ron and he came over with his son. I have never met a man that was so nice and did a fine and excellent job. Neat and very proud of his work, he is the man you call without question, a regular honest man. His son is wonderful as well. I would recommend him to anyone. The best of the best.”

Ann & Tom Powers

Smithtown, NY

FAQ

Questions we get asked.

When should I replace my central AC system?
Even a well-maintained AC unit does not last forever. Eventually, with age, the AC system's effectiveness will decline and will need to be replaced with a more efficient system. A typical central air conditioning system should last between 15 to 20 years. By this point, your system will have to work harder to produce the same results. Replacing the system will allow you to save more money in the long run by providing you with a more environmentally friendly product and lowering electricity costs.
What kinds of heating systems are used on Long Island?
There are three basic heating systems and three basic fuels in use on Long Island: steam, forced hot water and forced warm air, running on oil heat, natural or propane gas, or electricity. A forced hot water heating system is one of the most popular on Long Island — it serves two purposes, heating your home and providing domestic hot water throughout the house.
How long does an oil to gas conversion take?
The average time to complete your oil to gas conversion in Suffolk County is about 2 to 3 business days. In order to convert your home from oil to gas, we must coordinate with the utility company and the building department to get the proper permits to start and complete the conversion in a timely manner.
Which brands do you service?
We service, repair, maintain and install most major brands of boilers and HVAC equipment. On the A/C side: Carrier, Trane, Bryant, American Standard, Rheem, Ruud, Lennox, Daikin, Amana, Goodman, Fujitsu and Mitsubishi. On the heating side: Burnham, Weil-McLain and Peerless boilers, A.O. Smith and Rheem water heaters, Carrier, Bryant, Goodman, Lennox and American Standard furnaces, and Beckett, Carlin and Riello oil burners.
Do you offer emergency service?
Yes. 24 hour emergency service is available. Start your project today — you are just a phone call away. Call (631) 543-5619.
How can I pay?
We accept cash, checks or credit card payments. Competitive pricing, expert and honest advice, quality workmanship.
Service area

Towns we serve in Suffolk County.

Some of the towns we serve — HVAC, plumbing, heating and air conditioning, residential and commercial. Contact us to find out about your town if it is not listed here.

Smithtown Hauppauge Commack Nesconset St. James Kings Park Centerport Cold Spring Harbor East Northport Northport Greenlawn Huntington Huntington Station Melville Farmingville Holtsville Islandia Lake Grove Stony Brook Miller Place Mount Sinai Port Jefferson Port Jefferson Station

Start your project today.

You are just a phone call away. 24 hour emergency service available.

Request a quote (631) 543-5619

How can we help you?

Feel free to contact us at any time. We will be happy to assist you and answer all of your questions.

  • 24 hour emergency service available
  • Competitive pricing
  • Expert and honest advice
  • Quality workmanship
Call (631) 543-5619
Contact

Contact us.

Please feel free to contact us at any time to request a quote or consultation. We strive to be in constant communication with our customers until the job is done. We look forward to serving you.

Address
Smithtown, NY
Hours
9:00 am – 5:00 pm
24 hour emergency service available

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