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Emergency Service Tips

Gas Service Tips

If You Smell Gas...
  • Leave the building IMMEDIATELY. Do not use a phone or cell phone in your building. Using any type of telephone could ignite the leaking gas.
  • Do not use lighters or matches. If possible eliminate any source of ignition. Do not try to re-light a pilot light or strike a match. Do not smoke.
  • Do not touch any light switches or other electrical switches or turn any appliances on or off. Do not activate your electric garage door opener to leave your house. Anything electrical could cause a spark and ignite leaking gas.    

Call your gas supplier from a safe location outside and away from your house, like from a neighbor's house.  Follow the gas supplier’s instructions.  Leave gas furnaces, water heaters and other gas appliances alone.  But get out of the house immediately.


If your gas supplier is KeySpan, their Gas Emergency number is (800)490-0045. If you use a different supplier of natural gas, or if you use propane, call your gas supplier from a safe location.

No Heat or No Hot Water?

Easy things to check before you call:

If you don't smell gas, and gas burner won't start...
  • Check to see that the switch is on (blue or red switch located at top of the cellar stairs or near the boiler)
  • Make sure that the circuit breaker or fuse is not blown.
If your heating system still does not start, and you do not smell gas, call us for service at (631) 821-5336

Oil Service Tips:

No Heat or No Hot Water?

Easy things to check before you call:

If oil burner won't start...Check to see that the switch is on (red switch located at top of the cellar stairs or on the boiler)
  • Make sure that the circuit breaker or fuse is not blown.
  • Check your fuel tank gauge to see if you have oil.
  • Press reset button one time only.

If your heating system still does not start, call for service at (631) 821-5336.


Air Conditioning Service Tips:

No Cold Air?

Easy things to check before you call:

Check to see that air can flow freely around the outside condenser unit. Do not store items around the condenser that will restrict the flow of air.  The unit needs to have unrestricted access to pull air into the system, cool it and blow it inside the house.
  • Make sure that the circuit breaker or fuse is not blown.
  • Be sure the thermostat is set in the cooling mode. Just setting the dial below room temperature will not activate the air conditioning if it is set in the heat mode.

Call us at (631)821-5336 if you’re a/C still does not work.


Emergency Numbers

  • NationalGrid Gas Emergency number is (800) 490-0045
  • GMS Mechanical (631) 821-5336

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