We Leave Our Customers Smiling
Ready for 5-Star Level Service?
You’ll never again check your oil gauge on a freezing morning, wondering if you have enough fuel to last the weekend. No more scheduling deliveries or paying hundreds upfront for oil you might not use right away.
Your monthly heating bills drop significantly. Most Mansfield homeowners save 25-30% compared to oil heating, and that’s money that stays in your pocket every single month. The savings typically pay for the conversion within five years.
Your basement gets its space back. No more 275-gallon tank taking up valuable storage area. No more oil smell, no more soot to clean, and no more maintenance headaches from an inefficient system that wastes nearly half the fuel it burns.
We’ve been helping Mansfield families make smart heating decisions for over 30 years. When you’re ready to convert from oil to gas, you want someone who knows the local permitting process, understands Massachusetts building codes, and can handle everything from gas line installation to system commissioning.
Our trucks are fully stocked, so we can complete most conversions without delays waiting for parts. We’re available 24/7 because heating emergencies don’t stick to business hours, and our 12,000+ customers know they can count on us.
Mansfield homeowners particularly appreciate our straightforward approach. We explain exactly what’s involved in your conversion, handle the paperwork with National Grid or your gas utility, and make sure your new system is running efficiently before we leave.
First, we assess your current system and determine whether you need a complete furnace replacement or can convert your existing unit. We also verify gas availability on your street and coordinate with your utility company for gas line installation if needed.
Next, we handle all permits and inspections required by Mansfield and Massachusetts. This includes gas permits, plumbing permits if we’re installing a new water heater, and scheduling all necessary inspections with local authorities.
On installation day, we remove your old oil equipment, install your new gas system, and connect everything safely. We test the entire system, show you how it operates, and make sure your thermostat is programmed correctly. Most conversions take one to two days depending on complexity.
Finally, we clean up completely and dispose of your old equipment responsibly. You’ll have our contact information for any questions, and Dempsey Comfort Club members get priority scheduling for future maintenance.
Ready to get started?
Your oil to gas conversion includes complete removal of your old oil system, professional installation of your new gas equipment, and all necessary connections and testing. We handle gas line coordination with your utility company and all required permits and inspections.
In Mansfield, many homes built before 1990 still rely on oil heat, but natural gas is available throughout most of the town. We work with National Grid to ensure your gas service is properly sized for your new system and coordinate timing so there’s minimal disruption to your heating.
We also include system commissioning, which means we test everything thoroughly and adjust settings for optimal efficiency. You’ll receive operating instructions, maintenance recommendations, and information about our Dempsey Comfort Club membership for ongoing support.
Most Mansfield conversions also benefit from upgrading to a high-efficiency condensing unit, which can achieve 95%+ efficiency compared to your old oil system’s 60-70% efficiency. The difference in fuel costs is substantial, especially during New England’s long heating season.
Local Resources
Useful Links
