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Sigma Mechanical Services

Generator dealerMarshfield, MA
Generac

41 Rockwood Road, Marshfield, MA 2050

781-837-9994SIGMAMS.COMDirections
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Generac 14kW Whole Home Generator, Transfer Switch & Cellular Capability
Featured · GeneracGenerac 14kW Whole-Home Standby GeneratorLowest price in 30 days$4,799−18%List: $5,839Price as of Aug 16, 2026 · the price shown on Amazon at checkout applies.See Current Availability

Independent recommendation from GenDealers, sold on Amazon. Not offered or endorsed by SIGMA MECHANICAL SERVICES — contact the dealer directly for equipment and installation quotes.

About Sigma Mechanical Services

Offering service.

Services
Service
Authorized for
Generac

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Generac equipment on AmazonAd

Independent recommendations from GenDealers — not sold or endorsed by this dealer.

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Generac 22kW Whole Home Generator, Transfer Switch & Cellular Capability
GeneracGenerac 22kW Whole-Home Standby GeneratorWhole-home coverage for larger houses, with the automatic transfer switch and cellular monitoring in the box.
  • 22 kW
  • ATS included
  • NG / LP
View on Amazon
Generac 6485 Scheduled Maintenance Kit for 20kW and 22kW Standby Generators with 999cc Engine Black
GeneracGenerac Maintenance Kit — 20kW & 22kWOil, oil filter, air filter and spark plugs for 999cc Guardian units, in one box.
  • 20–22 kW
  • 999cc engine
  • Kit 6485
View on Amazon
Generac 6484 Maintenance Kit for 12-18 kW Generators
GeneracGenerac Maintenance Kit — 12kW to 18kWEverything the annual service calls for on 12–18kW Guardian units.
  • 12–18 kW
  • Kit 6484
View on Amazon
Generac 7101 Battery Heater Pad For 9kW–22kW Air Cooled Standby Generators
GeneracGenerac Battery Heater PadKeeps the starting battery warm so the generator cranks on the coldest night — for 9–22kW air-cooled units.
  • 9–22 kW
  • Cold-weather
  • Kit 7101
View on Amazon

More generator dealers nearby

Compare Sigma Mechanical Services with other authorized dealers before requesting quotes — most homeowners get two or three.

All dealers in Marshfield, MABrowse Massachusetts by citySize your generator first

Sigma Mechanical Services is listed on GenDealers as an authorized Generac generator dealer in Marshfield, MA, offering service. GenDealers is an independent directory; contact the dealer directly for pricing, availability and installation scheduling.