changing front door
Sorry, can't help you there.
There are many factors that will affect cost.
It could range from simple to complex.
Only an onsite inspection can reveal the proper labor and additional materials cost, and that can't be done over the internet.
Any number of these issues could come into play and add or subtract costs:
1.) Header doesn't allow proper height. (it's happened)
2.) Flooring needs alterations to accept the new door threshold.
3.) Existing walls are out of plumb.
4.) Floor is out of level.
5.) Discovered rot or damage.
6.) Extensive interior casing and/or baseboard modifications.
7.) Extensive exterior casing modifications.
8.) Siding modifications or alterations.
9.) Extensive drywall work required?
10.) Paintwork required on door, door components, other areas.
11.) Installation of hardware included?
12.) Custom Millwork required for style of home.
13.) Disposal of old door costs.
14.) Storm Door removal?
15.) Storm Door installation?
16.) Brick work on exterior?
17.) Improper installation of original door creates additional issues....
18.) etc, etc, etc....
- Build Well -