Powersmith is Long Island's #1 Home Performance Company

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Save up to 40% on your energy bills when you convert your heating oil system to natural gas!

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No upfront cost efficiency upgrades for Long Islanders

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Award Winning Leader in Energy Efficiency
Oil to Gas Conversions

Guaranteed Home Energy Savings!

Thanks to modern building science, you no longer have to turn the thermostat down to save money on your oil bills. For maximum energy efficiency and comfort, your home should be properly sealed and insulated, with all heating and air conditioning systems working properly.


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2013 Home Performance with ENERGY STAR Top Contractor Award

2013 Home Performance with ENERGY STAR Top Contractor Award

Powersmith Home Energy Solutions was chosen as the Top Contractor in... more

Powersmith Blog Heating and Air Conditioning switch to natural gas

Switching from Oil to Gas on Long Island: A Sound...

 By POWERSMITH | Published: February 3rd, 2014 If you’re tired of high heating bills and sending your hard-earned money to overseas dictators and oil companies, you’re in luck. ... more

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What our customers are saying


We no longer walk on cold floors — it's such a pleasure to know that the house is insulated now and so quiet... They were prompt and made sure I was a happy customer before they left the home. They left it spotless! 

Margo and Eric Shuff, Amityville, NY

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Home Advisor Powersmith