Verified record
Formal Oil Co is a Waltham oil company that BBB lists with 42 years in business and an A+ grade; it is not BBB-accredited. Google shows a 5★ average across 3 ratings. Its one written review dates from February 2020. A customer who had been renting a house in Waltham for about six months praised the customer service and the fast oil refills.
Great customer service and fast oil refills. I've been renting a house in Waltham for about six months now and really appreciate Formal Oil's service.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Formal Oil Co. 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
Specializes in
Service area
Languages
1 change recorded — last scanned Sep 9, 2026.
