Mike Giasullo Oil Burner Service Inc.

A September 2026 customer says Mike Giasullo replaced an oil tank neatly and at a fair price. Oil heat work is the center of this North Billerica business, which says it has been operating for seven years and lists service towns around Billerica, Lowell and Wilmington. Google shows 493 ratings averaging five stars. The jobs described by customers range from tank changes to boiler installations and burner service. In a February 2026 review, a homeowner said Mike replaced a failed 35-year-old oil boiler during a cold spell and explained the new unit. A December 2025 customer said technician Bill replaced a worn electrode and explained the work. In a separate November 2025 review, a customer said Mike cleaned and serviced two oil furnaces and checked their operation before leaving. Those are distinct jobs, with different workers and dates. Recent accounts also describe Mike and Billy servicing one family's heating systems, and a September 2026 reviewer praises the communication when Mike traveled beyond his usual working area for that particular visit. In a February 2026 no-heat account, a customer said Mike reached the house in about an hour and fifteen minutes and got the burner running. His website republishes a Christmas Eve heating testimonial; that quote is presented by the business itself. The customer accounts give the stronger picture of performed work.