There are lots of different methods you could use to remove and reinstall a bathroom vanity here is one of the easiest options.
Recommended tools required-
Adjustable Wrenches, Pipe Wrench, Locking Pliers, Hammer, Chisel, Drill with bits, Hacksaw, Utility knife, Bucket, Safety Glasses and Work Gloves.
Removal of the old vanity
Step 1 – Turn off the water supply. The valves are typically under the sink inside the vanity. If not, turn off the water at the main valve. Then turn on the tap to relieve any water pressure left in the lines
Step 2 – Loosen the slip nut at the top of the P-trap. Remove the entire trap if necessary. Have a small bucket ready to catch any water left in the trap.
Step 3 – Disconnect the water supply lines from off the valves. You might need a wrench to loosen them. keep that bucket handy to catch any water left in the lines.
Step 4 – Using your utility knife cut all of the old sealant along the edges of the vanity top, then tug on the vanity top to free it from the wall.
Step 5 – Remove the vanity top from the vanity base. Some tops are held on with screws and some are glued to the base. If yours is glued, use a hammer and chisel to separate it from the cabinet. Try using the chisel on the inside if you’re going to reuse your sink or vanity.
Step 6 – Remove the vanity, take out any screws that are used to fasten the cabinet at the back or the sides and pull the vanity out.
*NOTE* – If you’re rerouting your plumbing, painting your walls, or installing wall tiles, now is the perfect time to do it.
Install the new vanity cabinet
Step 1 – The best way to start is by marking the outline of the new vanity on the wall. Mark the height in three different locations. Mark the width too.
Step 2 – Our entire range of vanities are supplied with solid backs so you will now need to cut holes for the plumbing. Measure the distance from the outline on the wall to the pipes. Transfer those measurements onto the new vanity back and cut the holes with a hole saw or drill bits.
*NOTE* – For ease of installation, make the holes a little bigger than the plumbing pipe’s width.
Step 3 -It’s easier to install the vanity if you remove the doors and drawers first, this will also stop any damage that may get caused when lifting the cabinet into place.
Step 4 – Set the vanity in place, lined up with all the marks on the wall. Check that it’s level front-to-back and side-to-side.
Step 5 – Drill a pilot hole through the vanity back into a wall. For a tile wall, first, use a tile bit. Once you’re through the tile, use a wood bit to drill into the stud or a masonry bit to drill into the brick. Use wall anchors made for your wall type — drywall, plaster, brick or tile. Secure the cabinet with screws.
Install the new vanity top
Step 1 – Assemble the mixer tap or the basin set and plug and waste or pop up waste on the top before you install it onto the vanity.
Step 2 – Add a thin bead of silicone adhesive to the top rim of the vanity cabinet. Try not to get it on the face of the cabinet.
Step 3 – With the help of another person, carefully set the sink top on the vanity, making sure the plumbing is lined up. Let the adhesive cure.
Step 4 – Once the adhesive has cured, reconnect the drain. If the tailpiece is too long, cut it with a hacksaw. If it’s not long enough, you can find plumbing kits at your local hardware with extension pieces to reconnect your drain.
Step 5 – Reconnect the water supply lines. If you have old, faulty water supply valves, you’ll need to replace them. This is a job that should be carried out by a licenced plumber.
Step 6 – Apply a bead of bathroom caulk or silicone along the back or side edges of the top that are against a wall. Clean up any excess.
Step 7 – Turn on the water to test for leaks both with the valves and the waste and make any necessary adjustments.
Step 8 – Reattach the vanity doors and drawers to finish the installation.