The floor beneath is plywood and uneven.
Remove quarter round before carpet.
To aid in re installing the quarter round number each piece in order as you remove it around the room.
I had lv plank flooring installed on my second floor replacing the carpet.
Quarter round is inappropriate base shoe is the proper stuff but not with carpet.
In this video i share how to cut and tuck carpet to quarter round base molding be sure to subscribe for more tips and tricks about the carpet and flooring in.
Carpet can stain and wear out over time so plan to replace it every five to ten years especially if it is installed in high traffic areas like living rooms.
Go along the quarter round until there is a natural break in the molding such as a corner or mitered edge.
Take the baseboards out freshen them up while you are at it install floor pop baseboards back.
The contractor placed the flooring but there are a lot of dips.
Instead simply pick up some quarter round trim which generally measures about 3 4 inch high and can be found at any hardware or home improvement store.
Some put the base molding down first then carpet others put the carpet down then base molding and sometimes base shoe but i find it a bit unsightly.
Often a quarter round piece of molding can be run along the bottom of the baseboard to finish it off.
Pry outward gently moving from one nailing point to the next.
Touch up paint and caulk where needed.
Not taking them out starts the job faster but then after your install there will be quarter round regret because of point 1.
Do this all around the room.
Insert the blade of a pry bar behind the quarter round at the nailing points visible between the quarter round and baseboard.
Wiggle the putty knife back and forth along this seam until the quarter round pops loose from the wall.