
For decades, FSi Oil Services has been ensuring the warmth and comfort of its customers. We think every household deserves optimal comfort every day.
So, if you’re looking for a world-class heating and cooling upgrade, you can get it through our sister company, Clean Climate HVAC, which is the most well-resourced and experienced installation team in the region. Say goodbye to home comfort issues and start saving energy for years to come. Just talk to our team, and we’ll connect you with Clean Climate HVAC. Here’s what they can do for your home.
Heating a New England home all winter is rarely an easy task. Let us make it effortless for you! High-efficiency heating oil boilers and furnaces provide dependable and cost-effective heating you can count on.
Stay comfortable during the hottest days of summer with Clean Climate HVAC’s efficient air conditioning products. Ductless mini-splits and heat pumps not only cool you off but also provide supplemental warmth during the chillier months of fall and early winter.

You and your loved ones don’t have to endure the discomfort of dusty, dry air that causes constant coughing or wheezing. Clean Climate HVAC offers IAQ systems designed to enhance your well-being and promote better health by providing cleaner, fresher indoor air.
Traditional and indirect-fired water heaters deliver dependable hot water year-round, perfectly suited for all your needs — bathing, cleaning, laundry, dishwashing and more!
We want your HVAC upgrade to be as affordable and low-stress as possible. That’s why Clean Climate HVAC offers preferential financing with good terms and a fast approval process. They’ll also help you qualify for any available rebates and financial incentives.
In need of professional HVAC installation services in Massachusetts’s Pioneer Valley? Reach out to us today for a free estimate and enjoy reliable, high-quality service you can count on.
FSi Oil Services only delivers the highest quality fuel to our customers, and our highly trained team is second to none.
We are committed to using cutting-edge technology and the best materials and tools while continually refining our processes to serve you better.
No heat? The FSi team will show up to get you back on track. Our customers are our friends — and you don’t let friends down.