Compare top-rated hvac providers in Killingworth. Profiles include verified reviews, service details, and direct contact options.
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In homes across Killingworth, a constant challenge is maintaining a comfortable and energy-efficient living environment. At Reliable Heating & Air…
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We show only active businesses that pass moderation. Results are specific to Killingworth and nearby service areas, and inactive profiles are removed to keep the list current.
Ratings and reviews come from customers who used the service. Compare hvac pros in Killingworth by experience, responsiveness, and value before you reach out.
Filter by neighborhood, check locations on the map, and find providers close to home or work in Killingworth. Listings are refreshed regularly — August 2026.
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Looking for hvac in Killingworth? This page lists verified local providers with ratings, reviews, and contact options. We show active businesses only — profiles are moderated and updated by owners.
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Bill is an honest and fair guy, we are going to continue to give him our business.
Had the boiler go down in our new house on the coldest night yet. New to the area, we called and Bill came right out and took care of us at 8 pm on a Friday. He did a wonderful job. He gained a new customer for life.
Had a furnace malfunction yesterday. Was recommended to call Bill from Reliable by my Oil Supplier, BOY were they spot-on! Bill came over, replaced the Nozzle, Electrodes, Fuel Filter and Tank Filter, as well as cleaned everything up and adjusted air/fuel settings. Very thorough, informative and knowledgeable. And, price was very reasonable for a emergency service call. Will definitely recommend Bill and Reliable Heat and AC to anyone!
We needed to replace our air conditioner unit and wanted to take advantage of the substantial rebates available from Eversource. Bill advised on the technology and recommended the correct equipment to qualify for the rebates. He installed a new heat pump system and air handler and integrated it with our existing hydro air system. Bill was very timely and professional throughout the process.
Bill is truly the best in the business. Professional, thorough, and extremely knowledgeable . He explains in detail what the problem is and the solution for repair. We wouldn’t call anyone else but Reliable Heating & Air Conditioning Co. Second to none!
Bill came highly recommended by a few neighbors. Today he came for the first time to service our AC system. He was prompt, friendly, very knowledgeable. Found capacitor leads that were at the breaking point, low freon level, fixed both. Also well acquainted with our humidifier and dehumidifier systems. Very pleased. Now on speed dial.
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