Residential & Commercial Heating and Air Conditioning

Serving all of Long Island and New York City

  • Peter L.
    - Google

    "Efficient, prompt, courteous. Came and completed entire HVAC installation within 48 hours of call. Do not hesitate to hire! Great... read more

    Theodora S.
    - Google

    "The staff and boss were extremely nice, very professional PLEASED ON EVERY LEVEL!!!! we are very happy and would definitely... read more

    Tom K.
    - Google

    "KS Mechanical was excellent in every way. The crew was consistent (excellent).Work started as promised and completed as I was... read more

  • Maritza D.
    - Google

    KS save the day for us buying a house and everything go wrong then AC goes nervous to find someone... read more

    Melissa K.
    - Google

    AC wasn't working on a very hot day. KS Mechanical Service was at my house within 3 hours of calling.... read more

    Suzy R.
    - Google

    I hired Lance and his team during the height of Covid to convert my system from oil to gas. ... read more

  • Keith W.
    - Google

    Great experience from quote to installation. Received a quote on a Friday, and the installation of 4x ductless heads and... read more

    Billy M.
    - Google

    Installed gas furnace in timly fashion and for great price. Not only was Lance and his guys great but... read more

    James C.
    - Google

    Lance and his crew were fantastic from start to finish. It was a very big job, new tankless boiler install,... read more

  • Jane N.

    Excellent service, quick response, reasonable pricing. KS will be our go to company for future AC needs.

    Larry W.
    - Google

    I strongly recommend KS Mechanical. Not only was the price to replace the heating system the best but Lance... read more

    Lucas J.
    - Google

    Lance and his team are great. Honest and fair pricing. Had them come replace my old boiler with a new... read more

  • Stefanie M.
    - Google

    Lance and his crew are amazing. They always put 110 percent into everything. When I had a problem with my... read more

Providing Services In:

Professionally Trained in all product brands

Air conditioner repair



Only pay for service that’s genuinely needed. Our maintenance plans are customized for your specific needs. From commercial buildings to the smallest residential systems, we take the same approach—doing what’s right for our customers.

KS Mechanical's HVAC Services

Residential Installations/Replacements

Certified Expert Staff to offer the best cost effective solutions for your Home Improvement Project

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Air Conditioning Service/Repairs

Same Day Emergency Service for all Air Conditioning Systems

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Preventive Maintenance Contracts

Keep your Heating and Cooling Equipment running at optimal performance with one of our yearly Service Contracts

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Commercial Installations/Replacements

Our expertise in state of the art systems and latest technologies will keep your business running smoothly all year round

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Heating Systems Service/Repairs

We'll keep you warm during the cold winter months with same day service for all Furnace, Oil and Heating Systems

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Water Heating Systems

Service and installation for all types of Water Heating Systems

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THE SECOND AND LAST OPINION YOU’LL EVER NEED Get an accurate diagnosis that you can rely on. First thing you’ll get with us is an expert technician backed up by a top-notch service department. If needed, next you can count on a full, honest assessment so you can make decisions that fit into an overall plan for your comfort.

We have been providing Commercial and Residential service in the greater New York City area and all of Long Island for almost a decade. Our certified, experienced technicians and office staff are on call and prepared to handle all phases of your new Installation, Replacement, Service and Repair needs. Owner, Lance Colomba personally oversees each project from start to finish. We take pride in ensuring our customers will always receive top quality service in the most cost efficient manner.

KS Mechanical Services


Fast response, reliable diagnosis, and an honest price from a team of experts in HVAC service, residential and commercial installation, maintenance, and indoor air quality. Our team approach to handle the whole picture provides trustworthy guidance for good decisions in taking care of your residential and commercial system. We take deep satisfaction in delivering on our promise of a job well done. One call will put you in touch with true experts who will get the problem handled right away. 

K.S Mechanical Services

Service Areas in New York

Contact Us


481 Johnson Avenue – Suite E Bohemia, NY 11716

ks mechanical services

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