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

home energy efficiency audit powersmith long island blog

5 Ways a Long Island Home Energy Audit Will...

By POWERSMITH | Published: December 5th, 2012 You may have heard about home energy audits before, but maybe you're not quite sure that you need one. After all, your home is... more

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What our customers are saying


They said they would be in and out in a day and they kept to their word. Everything they told us they were going to do they did... Neat, clean and professional!

Alice Restivo & Dan Kirk - Oil to Gas, Hicksville, NY