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603 Oil Burner, Oil and Gas Heating, Cooling & Refrigeration

24hr HVAC and Service in Hopkinton
Open today until 5:00 PM
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We are taking a break from work as we approach a hard time for family matters. We will keep everyone informed as soon as possible. Prayers and needed at this time.

Hopefully everyone is finally finding some normalcy returning to their life after quite a ride in 2020. Despite the Covid issues we have done well and have continued to expand our offerings. As many of you know we started out small doing mainly oil service and installs back in 2017. We also o...

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Well summer is over, Fall is here and the “white stuff” is on the way. Please take some time to look at your heating system and consider having it serviced BEFORE you really need it! Most of us turn up the thermostat and/or shower when we are cold and think nothing of where that warmth comes fro...

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Time to do maintenance on air conditioning systems. If you don’t have air conditioning give us a call and we can hook you up with a great mini split before the weather gets too hot.

More windows for Gerry Dumont our of Antrim! These custom windows were a challenge to put in on a trailer home. We work with all brands and will install any window, anywhere you want! Call today for a quote or any questions regarding an install and features!
(603) 494-8645

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We now offer full installations for mini splits! We work with all brand manufactures and we give you the absolute best pricing and install guaranteed! Call or email us today for a quote or any questions regarding installs or quotes! We are happy to hear from you!
(603) 494-0494

We have spent the winter working on expanded service and installation offerings. We have obtained the proper certifications and training to now offer mini split system installation and service. Now is the time to think about adding this great technology to your home in the spring putting those ta...

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In light of the upcoming snowy weather take some time to keep venting clear from snow. Also if you have an oil tank that is outside it’s best to cover the filter and lines and protect them from the direct cold. Oil starts to gel around 20 degrees and any water in the tank will freeze.


3 years ago
Peter and Kyle recently installed a new furnace for me. This was not a purchase I was thrilled to make but it was necessary. I could not have been more pleased with the work that they did. The price was reasonable and they went the extra mile to ensure that I was satisfied in every detail. The town inspector commented on the quality of the installation. Earlier this month they came back to restore some weathered windows and replace some aging face boards. The work was completed efficiently and was up to professional standard. The old wood was removed along with a large quantity of odd materials that had been housing bugs under my porch for longer than I’ve owned the house. Once again, great work done. I have always tended to hire people based on my sense of them. I would recommend Peter and Kyle without reservation. Theirs is a family based company and I know that they stand behind the work they’ve done. Jeff Kite Alton, NH
- Jeffrey K
11 months ago
Not only were they highly professional they were upfront and honest about everything. They told me it was going to take about 2-4 week for the boiler to come in and all the parts. They were amazing with communication about the process to replace, move, and repipe the new system. They also were super animal friendly as well. I will never go anywhere else for my home needs as this father and son team are the best.
- Audrey D
3 years ago
We just bought a mobile home with a furnace that hadn't been serviced in 3 years. We called a large local company who played around with it for a bit, got it to run and then left. It never ran after that. They never mentioned it was running at 60% efficiency or how bad the electrical was. We called these guys since they had good reviews. Kyle found out we had an air leak somewhere in the system and Peter showed us where the burner was completely broken apart and shorting it out. We decided to do a new furnace from them. They gave us a reasonable but worst case estimate, showed up on time, hauled the old furnace away and got it installed in just a few hours. They even swept up when they were done. They came in way under estimate and did an amazing job. I would recommend them to anyone I know, the price was very reasonable and they did an excellent job. I definitely would have thought we were going to pay a premium for the care they took and how good it looks now

HVAC and oil system service

603OBS doesn't sell fuel, we sell service.  Our goal is to provide competent, friendly service to our friends and neighbors.  We also install new heating and air conditioning systems including mini splits

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  • (603) 494-0494


Get directions
561 Thain Road
Hopkinton, NH 03229

Business Hours

Mon:9:00 AM – 5:00 PM
Tue:9:00 AM – 5:00 PM
Wed:9:00 AM – 5:00 PM
Thu:9:00 AM – 5:00 PM
Fri:9:00 AM – 5:00 PM
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