Nicholson Plumbing, Electrical, Heating, and Air Conditioning
Holliston contractor covering sump pumps, generators and furnace or air conditioning work for basement, backup power and heating needs across MetroWest Massachusetts.
What they do
Based in Holliston, the business handles sump pump installation, repair and maintenance, along with drain cleaning for basements. For backup power it installs whole-home generators, services Generac units and carries out panel upgrades. Heating and cooling work covers furnaces, boilers, ductless mini-splits, air conditioning and heating repair. Emergency service is offered, and the business is open around the clock, every day. Free estimates are offered, financing is available and the warranty runs 12 years. Jobs are taken across Holliston, Framingham, Marlborough and Natick.
- Sump pumps
- Generators
- Furnace repairs and installs
- Boiler service
- Ductless mini-splits
- Air conditioning
Listed under Backup power, Basement flooding and sewer backup, Heating and cooling emergencies
Where they work
What we checked
Checked 12 Nov 2026, from public sources.
Not yet verified. We haven’t contacted this business yet. Ask for a written quote before work starts.
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