Installation & Service

When it comes to service, repair and replacement for oil and gas furnaces and boilers, you can count on our professional technicians to deliver in both level of service, and total overall value.

Air Conditioning

Installation & Service

Whether you need maintenance, service, repair, replacement or installation of a central AC unit, Whole house AC unit, or convenient mini-ductless splits, we have the best overall value around so you can keep your cool!
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24 Hour

Emergency Service

We are here when you need us most, call for prompt dispatch during true emergencies!


Our Happy customers

Both the office staff and the guys on the job site were exceptionally friendly and competent. I wouldn’t hesitate to recommend them to anyone. I wish all contractors I’ve worked with were like them.


 Napoleon Furnaces

The Cleanest, Quietest, Most Stylish, and Efficient Heat in the Industry

“Kyle was friendly, personable and excellent at his job. Was in and out quickly and our HVAC is running like a champ again!!! Great job!!!!”
  • Up to 97% AFUE
  • HomeShield UV Furnace Lamp installed
  • Fully Insulated Cabinet for WHISPER QUIET™ Operation
  • Modular Components
  • Variable Speed Technology
  • Patented Vortex Technology
  • Two-Stage Heating
  • Upflow Only
  • SureView Burner Window

9700 Series

The Ultimate 9700 Series Gas Furnace is the most stylish in the industry. Meeting all of your heating needs, the powerful two-stage system provides consistent and comfortable temperatures.

9600 Series

Napoleon's 9600 Series Gas Furnace is one of the most stylish and efficient furnaces on the market and will meet all your heating needs. It's two-stage heating system uses the low-fire stage on milder days for greater efficiency throughout the heating season.


The Napoleon 9500 Series Gas Furnace is the perfect addition to any home. Superior engineering and design make it one of the most reliable gas furnaces on the market. The EnerSave Pro motor boast energy efficiency and WHISPER QUIET operation.

Call Now for 24-Hour Emergency Service

We are here when you need us most, call for prompt dispatch during true emergencies!

Furnace Installation and Service

We repair, service, and install natural gas, propane, and oil-fired furnaces from all makes and manufacturers.


Our Happy customers

This is a top notch company. They were honest and gave us good advice. I would not hesitate to use Sin Cal. Competence and honesty a great combination.


Boiler Installation and Service

We service and install gas and oil boilers from Lochinvar, Weil-Mclain, Burnham, Rinnai, Peerless, Bosch, Navien and more.


Our Happy customers

Kyle and Heidi went above and beyond to insure everything was exactly the way we wanted. They showed excellent workmanship and upon completion the house was cleaned up beautifully!


Duct Work Installation and Service

We repair, replace, and install heating and cooling system ductwork leading to maximum efficiencies, lower heating and cooling costs, and creating a healthier living and working environment.


Our Happy customers

Excellent customer service! Heidi was quick to respond and answer all of our (many!) questions. The installation went smoothly, the crew was professional and mindful of my home. We would certainly hire Sin Cal again!


Mini Ductless AC Installation and Service

Mini-Ductless split AC has become popular over the last few years here in New England, we can help you with maintenance, service, repair and installation for many of the world’s leading brands like Napoleon, American Standard, Mitsubishi, Lennox, Fujitsu, LG and Daikin.


Our Happy customers

Kyle was friendly, personable and excellent at his job. Great job!


Central AC Installation and Service

If you are looking for service and repair, or replacement and installation of your central AC whole house air conditioning system let us help. Servicing Napoleon, American Standard, York, Goodman, Lennox, Amana and more.

Call Now for 24-Hour Emergency Service

We are here when you need us most, call for prompt dispatch during true emergencies!