Verified record
Typical your area range for this kind of work, from regional averages — not a quote from M.W. Sewall. 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
M.W. Sewall supplies heating oil and propane and works on boilers, and its Google page shows a 3.8-star average from 38 ratings. A recent Google reviewer wrote that since Sewalls and Berts merged, the customer service from Jenny, who "is of Berts," has been especially high, and that Jenny is "prepared to listen to you and help find your solution." A 2026 customer said a tech brought the boiler back into service in a house they had bought, fixing a leak and purging air in the radiator lines; that 2026 reviewer added that the company had delivered fuel twice, each time on the day it said it would. A 2026 customer whose water tank died said the company got them in as quick as possible and cleaned up the mess the boiler made. A 2026 reviewer wrote, "Every time I call, I get a friendly voice." A 2025 customer said M. W. Sewall had supplied all of their heating oil and propane since they came to Maine in 2001, said the company came through "regardless of weather," and called the pricing competitive. The company's website says it has been family operated since 1887 and also cites 29 years in business. On the Better Business Bureau it carries an A+ grade, and its BBB description calls it M.W. Sewall & Co., also known as Clipper Marts, offering gasoline, fuel oil, Express Lube and convenience store items. A mainebiz.biz headline reads "President of bankrupt M.W. Sewall fired." A mainebiz.biz headline reads "M.W. Sewall auctioned to former leader." An lpgasmagazine.com headline reads "Colby & Gale purchases M.W. Sewall," and a bpnews.com headline reads "Cetane Announces Sale of M.W. Sewall Inc."
“MW Sewall/Colby & Gale is great.”
“Colby & Gale purchases M.W. Sewall”
“President of bankrupt M.W. Sewall fired”
“M.W. Sewall auctioned to former leader”
“Cetane Announces Sale of M.W. Sewall Inc.”
Since Sewalls and Berts merged the customer service is especially high from Jenny . Jenny is of Berts and understands customers needs in these harder times and is prepared to listen to you and help find your solution . If anyone has had a bad experience with Sewalls before, then now you are getting what you were asking for. Best services. Price and customer service who will work with you
So far so good, used them for 6 months. A tech brought our boiler back into service in a house we bought, fixing a leak and purging air in radiator lines. They've delivered fuel twice. Each time they've done exactly what they said they would do, on the day they said they would do it.
Every time I call, I get a friendly voice. It feels good knowing they have great service
Super friendly and communication is amazing! I Had my water tank die on me and They got me in as quick as possible and even cleaned up the mess my boiler made. Highly recommend!!! ( I seriously have a cleaner basement than I did before)
M. W. Sewall has supplied all my heating oil and propane since coming to Maine in 2001. Always there when I needed them, regardless of weather. Competitive pricing, too.
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Certified attributes are verified against the public registry. Others are the business's own statement.
1 change recorded — last scanned Oct 4, 2026.