If the thermostat fails, we will replace it.

If the thermostat we've installed fails, we will come out and replace it at no cost to you (Up to $429 value)*.


Here's all you have to do to be eligible:

Keep the sticker on the front/visible area of your thermostat or air handler

Use the form below to register the thermostat

Enjoy the peace of mind that if your thermostat fails you'll get a new one FREE! (Up to $429 value)

Call 904-299-5050 for any questions about the lifetime thermostat guarantee.

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Griffin Service is here to help. Complete our contact form for reliable service you can trust, day or night!


    We also provide other water treatment solutions such as whole home water softener, water conditioning,  water purification system, as well as service existing filtration system. Sometimes, a malfunctioning water filter is the root of your water contamination problem. Our plumber in Jacksonville, FL, and other areas we serve can repair and perform regular maintenance on your water filter to ensure that it’s giving you clean and healthy water year around.

    We are dedicated to bringing you the best service through work transparency backed by our Griffin written guarantee.

    Schedule Today and We'll Be On Our Way


    We are licensed, bonded, experienced, and have lots of positive references and reviews. We feature written, in-person estimates and provide energy-efficient solutions to your heating, cooling, and ventilation issues. You can feel confident that the work we do will be done right the first time, every time - YOU HAVE OUR GUARANTEE! Our customer representatives will be happy to help you anytime.