Expertise is also crucial to consider when looking for the best window installation and replacement services. Knowledge is crucial to keep in mind, and you can see the number of years a company has been in business through their online profile. Experience takes time to gain and a service provider who has expertise in the field has the best know-how on installing and replacing of windows. There are dangers that one may be exposed to as they install windows and it is important to note them. It is essential for you to take precautionary measures, therefore.