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Updates

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)494-0494
(603) 494-8645
603obs@gm...

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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
603obs@gmail.com

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.

603 made a stop to a state job! Fox Forrest in Henniker received a new Becket AFG burner, insulated fuel line with a full EMT jacket covered protection layer, and a vibration loop with new spin on oil filters for easy replacement down the road. Not the easiest one to do, many obstacles to go arou...

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Leaky condensate return line buried in a 4 foot thick brick wall built into an early 1900’s storefront/apartment building in Laconia. The water level sensor in a commercial 1.5MBH+ steamer was tripping out several times a day leaving tenants cold.

603 OBS will not be around this weekend (25th-27th) If you have service, we can attend to you on Monday.

Not only furnaces, but windows too!
Here at 603 OBS we do more than your average furnace cleaning, maintenance and install. We also do carpentry such as windows, doors, decks and more! We work with all styles and brands of your choosing. Call us to schedule a free in home quote today! This is a...

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Testimonials

2 weeks 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
a year ago
Kyle was a life saver and came to my house in the middle of the night and fixed my oil burner. Great service and very good pricing.
- Zachary R

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

Address

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561 Thain Road
Hopkinton, NH 03229
United States

Business Hours

Mon:Open 24 hours
Tue:Open 24 hours
Wed:Open 24 hours
Thu:Open 24 hours
Fri:Open 24 hours
Sat:Open 24 hours
Sun:Open 24 hours
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