ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel

How To Install a New Vanity Sink Top

Updated on January 19, 2012

Small changes make a big difference when you want to update the look of your bathroom. Installing a new vanity sink top is one of those changes that require minor effort, but result in a huge difference in appearance and functionality. Usually the sink vanity cabinet is is good shape, but the current vanity top is dull or has a lot of damage. Installing a new vanity top requires some measuring and planning, but is doable project for any homeowner.

Tools and Materials

Tape measure



Slip-joint pliers

Utility knife

Pry bar

Putty knife

4-foot level

Wood shims


Saw horses

Belt sander

100-grit sanding belt

Construction adhesive

Caulk gun

Measure The Existing Vanity Top

Measure the length and width of the existing vanity top with a tape measure. Since you are keeping the existing vanity cabinet, you want a top that fits the cabinet and doesn't overhang too much. Take the measurements with you when purchasing the new vanity top to ensure you get the proper size for your cabinet.

Consider adding a new faucet to compliment the new vanity top. When purchasing a new faucet, be sure to choose one that fits the faucet holes of the new vanity top. The faucet completes the look of your new vanity top.

Remove The Existing Vanity Top

Turn off the water supply valves under the sink. Turn the valve handles clockwise to shut off the water. Turn the faucet on to relieve pressure in the lines and drain out any remaining water.

Place a bucket under the sink P-trap. The P-trap is the portion of the drain line that makes a hook. Disconnect the faucet water supply lines from the supply valves with a wrench, and place the ends of the lines in the bucket.

Loosen the nut securing the P-trap to the sink drain tailpipe with a pair of slip-joint pliers. The tailpipe is the straight portion of pipe coming down from the sink drain. In many bathroom sinks, the tailpiece also has a linkage connecting to it from the faucet. The linkage controls the pop-up stopper. If you are installing a new faucet, it is not necessary to disassemble the linkage. Loosen the nut securing the P-trap to the line going to the wall. Once you remove the vanity top, swing the P-trap to the left or right to give you room when installing the new vanity top.

Look under the vanity top for any screws or clips securing it to the sink vanity frame. Remove screws and clips with a Phillips screwdriver. Score along the seam between the vanity top and the wall with a utility knife, especially on the rear backsplash. The backsplash is the part of the vanity that extends up the wall a few inches. Scoring cuts the paint and caulk between the wall and the vanity top.

Insert a small pry bar between the cabinet frame and the bottom of the vanity top on an outside corner. Begin prying the vanity top away from the cabinet frame. Move the pry bar to different areas between the vanity top and cabinet, prying as you go. Once the vanity top is loose from the cabinet, lift it off the cabinet and set it out of your way. Depending upon the size of the vanity top, it might be a good idea to have a friend help you lift it off the cabinet.

Scrape any remaining caulk or glue off the top of the cabinet frame with a sharp, rigid putty knife. The top of the frame must be as clean as possible.

Install New Vanity Sink Top

Place a 4-foot level across the top of the frame, with the ends of the level pointing to the sides of the cabinet. Although the cabinet was probably level when first installed, it might be out of level due to the house settling over time. If the cabinet is out of level, look for the screws securing it to the wall. Remove the screws and place shims under the cabinet as necessary until it is level.

Move the level so that the ends of the level are pointing to the front and back of the cabinet. Again, shim under the cabinet until it is level. Reinstall the screws to secure the cabinet to the walls.

Place the new vanity top on top of the cabinet. Check to ensure the back and side of the vanity fit the wall squarely. If it doesn't, it is necessary to scribe the vanity. Place a pencil in a compass. You remember what a compass is, we used them in elementary school. Place the point end of the compass on the wall, with the pencil resting on the edge of the vanity top. Slide down the wall the length of the vanity, drawing a light line on the vanity top.

Put the vanity top on a pair of saw horses and have your helper hold it steady. Sand the edge of the vanity with a belt sander and 100-grit sanding belt up to the scribe line. Retest the fit of the vanity.

Install the new faucet into the vanity top according to the directions from the faucet manufacturer. Install the faucet supply lines onto the faucet per the directions from the faucet manufacturer. This is also the time to install the new sink drain into the sink that comes with the faucet.

Apply a bead of construction adhesive to the top of the vanity cabinet with a caulk gun. Place a bead on the top of all cross members of the vanity as well as the outside edges.

Set the vanity top on the top of the cabinet, pressing it down to ensure good adhesion. Reconnect the P-trap to the sink drain tailpipe and tighten both P-trap connecting nuts.

Run a bead of silicone caulk between the seams where the vanity top meets the wall with the caulk gun. Enjoy your new bathroom sink vanity top.


    0 of 8192 characters used
    Post Comment

    No comments yet.


    This website uses cookies

    As a user in the EEA, your approval is needed on a few things. To provide a better website experience, uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

    For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at:

    Show Details
    HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
    LoginThis is necessary to sign in to the HubPages Service.
    Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
    AkismetThis is used to detect comment spam. (Privacy Policy)
    HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
    HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
    Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
    CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
    Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the or domains, for performance and efficiency reasons. (Privacy Policy)
    Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
    Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
    Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
    Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
    Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
    VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
    PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
    Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
    MavenThis supports the Maven widget and search functionality. (Privacy Policy)
    Google AdSenseThis is an ad network. (Privacy Policy)
    Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
    Index ExchangeThis is an ad network. (Privacy Policy)
    SovrnThis is an ad network. (Privacy Policy)
    Facebook AdsThis is an ad network. (Privacy Policy)
    Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
    AppNexusThis is an ad network. (Privacy Policy)
    OpenxThis is an ad network. (Privacy Policy)
    Rubicon ProjectThis is an ad network. (Privacy Policy)
    TripleLiftThis is an ad network. (Privacy Policy)
    Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
    Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
    Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
    Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
    ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
    Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)