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Verified record
License not state-verified. We could not confirm a current registration in the state registry. Insurance is self-reported. Look up in the official Massachusetts registry ↗
- Not rated by the BBB
- 1 review in the last 6 monthsNo negatives
- 5 work photos
Highlights
- Oil furnace repair — 2026 review says it was diagnosed and fixed within hours
- After-hours call — 2026 review calls it quick and affordable
- Boiler replacement — 2023 review says boiler and water tank were replaced
Duke Mechanical LLC is a Sturbridge-based heating and cooling company. Its website says it installs new systems, repairs existing equipment and provides custom ductwork, and it offers free estimates and 24/7 emergency service. A recent customer names Rob Manduke as the owner. A recent customer says Rob Manduke serviced two air handlers he had installed at their house a few years earlier. In a 2026 review, a customer said they called Duke Mechanical about an issue with their oil furnace and within a few hours Duke Mechanical was at the house, diagnosed the issue and fixed it. In another 2026 review, a customer described an after-hours call as quick, well explained and affordable. In a 2024 review, a customer said Rob troubleshot their heating system when it would not turn on, recommending increasing the piping size for air intake, and later fixed another issue. In a 2023 review, a customer said Duke Mechanical, Rob and Joe replaced their boiler and water tank. In another 2023 review, a customer said they were given all their options for the project.
What does heating and cooling work cost in Greater Boston?
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Duke Mechanical LLC. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$5,000 – $11,400
Typical HVAC project around $8,200
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