How to Install a Solid Surface Bathroom Countertop

Nothing gives your bathroom the look of luxury and feel of elegance like a solid surface bathroom countertop made of granite, quartz or marble. The expense of the material might make give you the impression that only an expert would be able to install them, but the truth is that you can install sold surface countertops yourself at a fraction of the cost.

Step 1 – Take Some Measurements

Get your tape measure out and carefully measure the area where you’ll be installing the new countertop. Make sure to account for a 1 inch overhang, as well as for the size of the sink itself.

Step 2 – Acquire the Materials

Think carefully about what kind of stone you want to use in your bathroom. Experts recommend that DIYers choose marble or Corian for their solid surface, as opposed to granite, which requires some amount of expertise to handle. Take a visit to your local hardware store to look over your options; even marble can come in a variety of colors and patterns. Bring your measurements with you and have the store cut the stone to size; you can also get a separate piece of the same material cut for the backsplash that will go on the wall behind the sink. If needed, pick up a new sink and faucet during the same trip, if you won't be using your old sink unit.

Step 3 – Prepare for Installation

Next, you need to remove the old sink and countertop. Remember to shut off the water valve, to prevent any watery surprises. Disconnect the sink and faucet from the plumbing. Then, use a utility knife to pry out the caulk between the existing sink and walls, and gently shift the sink and counter top unit out of place, taking care not to nick or scratch the walls or vanity. Most units are integrative, so that you can pull the countertop and sink out as one whole object. 

Step 4 – Install the Counter and Backsplash

Start by making sure that all the plumbing fixtures are properly connected and in place before installing the new countertop. then, apply caulk to the vanity, firmly lift the countertop over the vanity and press firmly into place. Solid surface countertops are heavier than formica or other synthetic materials, so you will probably need an extra set of hands to help you lift and hold the unit in place during this step, especially if it is a large piece of work. Apply caulk to the back of the backsplash and affix it to the wall. Finally, slide the sink into place in the countertop opening.

Step 5 – Attach the Sink

Insert the sink into the countertop’s sink hole. Remember to caulk all around the edge of the sink to prevent any leaks. Reconnect the pipes underneath the sink, using your wrench to tighten all the joints as firmly as possible. Last of all, insert the pop-up drain into the sink. Turn the water valve back on and give the whole system a test run, to make sure that water is flowing properly and that nothing is leaking or dripping.