Typical your area range for this kind of work, from regional averages — not a quote from State Line Propane Oil. 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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When a recent Google customer told State Line they were out of oil, the company came out within an hour or so, after first saying it would need a few days. The company's website describes heating oil and propane delivery, HVAC service, fireplace solutions and home generators, and it says it has been in business 65 years. Its stated service area covers 11 towns, among them Suffield, Simsbury, Enfield and Monson. A recent customer who ran out of oil with three young kids at home said the company got them a last-minute delivery. A recent customer said Larry came in early at the proposed time and got the work done. A recent customer described help with an issue with their propane system, with expedited service and follow-up calls. A 2025 customer said Larry was already there before a 2-4pm time slot, walked through the step-by-step process and gave pointers on maintaining their boiler. In a 2024 review, a customer said the removal of a 275 gal oil tank and the installation of a new tank went without a hitch. A 2024 customer had a new boiler installed right after Christmas. A 2023 customer had multiple splits installed and called the work professional and clean. A 2023 customer who said they had been with State Line Oil for 44 years said the company had replaced two furnaces and installed a water heater over the years. A 2023 customer said Pete drove out the same day to inspect and fill their tanks, and that the company restored heat within 2 hours using a sealant when a 23 year old boiler cracked. A 2019 Reddit commenter in r/Connecticut called the company's service contract life saving. A recent customer wrote that the company's professionalism and communication skills have taken a sharp dive. A recent customer said they asked for 200 gallons and the tank was filled instead, and that after asking for no future deliveries, they received an email that 96 gallons had been delivered without their authorization. A 2026 customer who ran out of oil on a Sunday as a pay-as-you-go customer said they received 10 gallons and were then charged for bringing it to the house without being told the amount, and that the next day they were refused delivery and told the company was too busy for pay-as-you-go customers. A 2025 customer said they reached out two times and had no response or call back five days later. A 2023 customer warned of long waits, high prices and terrible customer service. Connecticut lists its SM1 sheet metal contractor licence, SHM.0004961-SM1, as active, held by State Line Oil.
“I use state line oil, I did the service contract with them which was life saving.”
The professionalism and communication skills of this company have taken a sharp dive. If you have alternative options for propane or oil use them. As someone who never leaves Google reviews, I felt absolutely compelled to warn future customers.
Excellent and very friendly customer service. They went the extra mile to help us with an issue we were having with our propane system, complete with expediting service and follow up calls. Everyone we spoke with was an absolute pleasure to deal with. They are the best!
Excellent service Larry was awesome. He came in early at the time that was proposed. Got the work done. Got in got out. He was very prompt came early now I have the rest of the day to do what I need to do. Larry, you are excellent employee and I thank you for everything you did. I would recommend this guy to anybody and thank you Stateline.
I can’t say enough good things about State Line Oil! We unexpectedly ran out of oil with three young kids at home, and they went above and beyond to get us a last-minute delivery. Their customer service was incredibly accommodating, understanding, and responsive during a stressful situation. It’s such a relief knowing we can count on a company that truly cares about its customers. Highly recommend State Line Oil for their reliability, professionalism, and outstanding service!
Called up for oil, they said would need a few days, but once I told them I was out of oil, they came out within a hour or so.
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1 change recorded — last scanned Oct 8, 2026.