Leave the Care of Your Furnace and Air Conditioner Up to D & K Heating Service Experts Heating & Air Conditioning in Belleville We know you’ve got tons of important things on your mind, so ensure one of them isn’t your air conditioner or furnace. At D & K Heating Service Experts, we take care of all your heating and cooling needs through our service plans, and there’s one for each of your needs. These service plans will provide routine air conditioner maintenance and furnace maintenance by our NATE-trained expert technicians and will help prevent more significant problems in the future. Call up our friendly customer service representatives to enroll in one of our service plans or to schedule a system inspection. Leave your heating and cooling to the experts. You’ll feel the difference with a system that runs beautifully year round. Browse our furnace and air conditioner service plans to find the best fit for your home. Learn More Learn More Learn More Learn More 11-Point Home Health® Report Card 29-Point Visual Inspection Energy-Savings Analysis Comfort Tip eMails & Reminders Up To 30%* Energy Savings Longer Lasting System Disposable Filter Replacement Equipment Cleaning Complete Lubrication Gas Pressure and Pilot Adjustment Biocide Cleaning Lifetime Thermostat Warranty Repair Service Discount 24/7/365 Priority Service Welcome Home Newsletter Exclusive Offer By Email Free Repair Service Free Parts Replacement No Deductible Satisfaction Guaranteed!