The biggest indicator of whether your door closer is broken is if it still opens the door completely. If it’s not, then it may be damaged or defective. You can easily do this simply by opening and closing the door itself multiple times.
The final cost will vary depending on the type of door closer you get, as well as other mitigating factors. But in general, a new door closer replacement will cost somewhere within the range of $100 to $200, which includes the cost of the parts and the installation cost. The price could still rise, if you have your eye on really expensive parts.
The most important thing you have to keep in mind when purchasing a door closer, like with any commercial product, is the warranty. Make sure you get a warranty that covers at least two years. Any less, and you’re probably getting a poor quality part.
Yes. A professional installer will have the right tools and experience to do the job right the first time around. This means the job is finished faster, and you don’t need to worry about the door closer breaking down after a few months.
No. You can use a different brand. The only thing you need to consider is whether the new door closer will meet the same specifications as the old one.