How to Install New Laminate Countertops in 7 Simple Steps

Installing new laminate countertops is definitely a measure-twice-cut-once-type of job. The most important (and time-consuming) step for DIY installation is to take measurements, mark your materials, and cut the dimensions of your new laminate counters, as well as decide where appliances will go. You will need to learn how to cut a sink hole in the laminate countertop, as well as make cutouts for a slide-in stove. Be sure also to account for the counter overhang, which is between three-fourths and one inch.

After cutting, secure your laminate countertop slab with clamps to a stable surface. Use masking tape or a pencil to measure your cut lines, then use a saw to cut as needed. Finish by sanding the area with sandpaper or a file to smooth it out.

Note: Some premade templates may be available in home improvement stores online. If your space is a simple slab or a straightforward layout, cutting countertops may be unnecessary; you might be able to order a standard prefab option.

Before installing your beautiful new countertops or even removing the old ones, some prep work is necessary. You will need to:

1. Disconnect the water source to the kitchen or bathroom where you are working.

2. Remove appliances, such as the sink, range, and drain trap.

3. Scrape away the caulking that holds your backsplash in place.

4. Remove the old backsplash and any extra tiles.

If you are reinstalling the same appliances, put them somewhere safe. Also, make sure your screws and other installation materials stay organized nearby.

With the caulking gone along the wall that connects the backsplash, remove the corner bolts and screws that hold your old countertop in place. With the bolts and screws out, you should be able to slide off the old countertop in one piece. If your old counters were attached with silicone, you might need to run a warm, damp rag over the silicone to loosen it up, then use an abrasive scrubbing pad to help remove what is left. Enlist the help of a friend or family member to lift your old counter and move it somewhere out of the way.

To test your measuring work, place the new countertop you have already cut over the area. Check to see that it fits. Most importantly, your new countertops should fit snugly against the walls. You may need to use a belt sander to account for any minor dimension or cutting errors.

Once you have the right fit, it is time to secure your new countertops. Each manufacturer will recommend a specific process for attaching its product. For laminate countertops, there are two likely possibilities:

1. You will have to apply caulk or manufacturer adhesive along the top edges of the cabinet where the new countertops meet. In this case, you may need to use shims (small pieces of wood) every 12 to 18 inches to hold your counter up slightly while the glue dries.

2. Your laminate countertops peel and stick, and you only need to remove the barrier when installation time comes.

Let the adhesive dry for several hours, then check your work. If there are any gaps or holes, add more caulk to those areas. Finally, if applicable, fasten your countertops to the cabinets with screws or bolts.

At this point, the only area still exposed should be the space between the wall and the new countertops. The easiest way to do this is to draw one even line across the top with a caulk gun. 

If you need to spruce up the wall next to the new counter, consider installing tile for your backsplash. The possibilities are endless. 

Before reinstalling appliances, let the backsplash and wall joint dry for at least four hours.

Finally, hook up the appliances you took out earlier. Once your sink is back in place, turn the water back on and check it.