View our Service Area

How long should my furnace last?

This depends greatly upon how well it is maintained but in general the average life is 15 years. But I can’t stress enough that the better maintained your furnace is, by having seasonal check-ups performed every fall, the longer you can expect it to last.

My rule of thumb is when your system is around 10 years old and repair costs are getting high you should start looking into replacement. Another major tell is if your heat exchanger, the area that harnesses your fire in the furnace, shows rust and deteriation. In this instance you should definitely consider replacement. Heat exchangers that crack will leak carbon monoxide, a by-product of gas being burned off. This colorless, odorless gas will enter your home and is deadly to you and your family.
Bookmark and Share
Looking for a career?
View Available Positions
Looking for a career?
View Available Positions

Contact Us

Thornton & Grooms
24565 Hallwood Ct
Farmington Hills, MI 48335
(248) 644-7810
MI Plumbing Lic. #: 8106666
MI Contractors Lic. #: 7100232
View service area

Follow us on our social networks for special updates and offers!

Hearts and Heroes

Hearts & Heroes

Help Thornton and Grooms Give Back to the Community With Your Vote! Cast your vote for your favorite charity to give them a chance at a $1000 donation from Thornton and Grooms.

Hearts and Heroes Past Winners ButtonHearts and Heroes Nominate Button