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Claim This BusinessProfessional Oil and HVAC has served Winthrop and surrounding Massachusetts communities for 15 years, specializing in air conditioning, heating, and ventilation systems for residential and light commercial properties. Located at 45 Mermaid Ave in Winthrop, the company operates seven days a week from 8 AM to 5 PM and advertises 24-hour emergency service. Their service territory covers the North Shore, Northwest, and western regions of Massachusetts, with documented experience across 184 private homes, 356 AC installations, and 250 heating system installations. The company offers preventive maintenance programs with transparent pricing: AC tune-ups at $89, boiler and furnace service at $175, natural gas service at $115, and oil-fired water heater maintenance at $99. Dave, identified as the owner, manages operations and directly performs service work.
The company distinguishes itself through certified technician expertise and a comprehensive service offering that spans multiple HVAC subspecialties. Their website advertises energy recovery ventilation systems as a core competency, positioning them for homeowners prioritizing indoor air quality and energy efficiency. The preventive maintenance pricing structure provides transparency that many competitors lack, allowing customers to budget for annual service without surprise fees. Technical support and guaranteed work are explicitly marketed, though the specific terms of guarantees are not detailed on their website.
Customer experiences reveal significant variation in service quality. Reviewer Kwan Lee praised Dave and his team as knowledgeable, detail-oriented, and honest, specifically noting their work with condo associations and thorough approach to diagnosing root causes. However, reviewer Oliver Bramma described serious concerns including an improperly sized furnace, missing permit pulled, absent carbon monoxide detector, and what they characterized as a rude owner response. A separate review from Victoria Mie describes an incident with the owner involving a vehicle accident, making serious allegations about his conduct. These conflicting accounts suggest prospective clients should request detailed written proposals and verify permitting before committing to major installations.
| Sunday | 8 AM–5 PM |
| Monday | 8 AM–5 PM |
| Tuesday | 8 AM–5 PM |
| Wednesday | 8 AM–5 PM |
| ThursdayToday | 8 AM–5 PM |
| Friday | 8 AM–5 PM |
| Saturday | 8 AM–5 PM |
Service, installation, and maintenance for all major AC brands with $89 preventive tune-ups available.
Boiler and furnace tune-ups at $175, natural gas service at $115, and oil-fired water heater maintenance at $99.
Energy recovery ventilation system installation providing controlled home ventilation while minimizing energy loss.
Radiator heating system installation and climate control services for residential and commercial spaces.
Indoor air quality solutions including air cleaning and purification systems.
Ceiling and wall insulation services to improve overall home efficiency.
Radiant floor heating installation for targeted warmth.