How to Join Seams in Granite Countertops

granite countertop

Seams in granite countertops are glued together using two-part epoxy. A special clamping system, known as a seam puller, uses a vacuum pump to attach blocks to each half of the countertop. The two sections are then pulled together with lever operated clamps until the glue sets.

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Backed by his 40-year remodeling career, Danny served as the home improvement expert for CBS’s The Early Show and The Weather Channel for more than a decade. His extensive hands-on experience and understanding of the industry make him the go-to source for all things having to do with the home – from advice on simple repairs, to complete remodels, to helping homeowners prepare their homes for extreme weather and seasons.


  1. I have no alternative but to replace kitchen base cabinets and want to salvage the granite countertops. What is best way to remove granite tops that are seamed together so as not to break granite.

  2. I am looking for an inexpensive way to get a granite look. I have found tiles 18 x 31 with polished edges. Can these be seamed by using the 2 part epoxy or do I have to use grout? I am trying to make it less noticeable.

    • Hi Kathleen,
      I don’t see why you couldn’t join the granite together using standard two-part epoxy glue, if you clamped it securely while it dried, though I have never tried it. You could probably add a bit of powdered universal colorant to the glue to make the seam less noticeable. Good luck with your project!

  3. what is the best way to break a seamed joint on a granite counter top with out damaging as I want to reuse countertops but reconfigure them?

  4. I want to know the specific name of the epoxy that is used to join the granite seams. We are redoing our kitchen and working with a very tight budget so we are going to do the installations ourself.

    • Hi Jamie,
      I don’t know of any solvent that dissolves cured epoxy, but I’ve heard you can heat granite with a heat gun then apply outward pressure with vacuum clamps or by driving wood shims in the joint to separate them, but I haven’t tried it myself.

  5. I had a granite countertop install that went wrong & had to be removed. The installer separated the seam by heating the seam from underneath using a propane torch, this basically melted the epoxy in the seam until it dripped like wax & any remaining epoxy was ground off before reinstallation of the granite. FYI


  6. I am having trouble locating a place which rents seam setter/seam puller.
    I’ve checked several rental places and one recommended a tile store – no luck.

    Chicago area or Benton Harbor/Kalamazoo MI area
    Any pointers would be appreciated.

  7. I’m having the same problem as Jeanie, but her question was not answered, please help:

    “water is leaking at the seams of our granite countertop in our kitchen .what is the best product to repair this problem? thamk you!”

    In my case, I can see that the seam is cracked. How do I repair this problem? Thanks,

  8. want to build a small bathroom vanity for a vessel round sink .6″ hx18″x20″ will epoxy hold this together it will be wall mounted,

  9. I am having a granite countertop installed and it has to be pieced. The installer wants the seam to be in the middle of the sink opening. That seems problematic to me. Where is the best place for a seam on a long countertop?

    • Hi, Suzanne,

      Danny says, “It is very common to seam granite countertops at the sink. It is less obvious, inconspicuous and it hides the seam better because it’s simply shorter. It rarely proves problematic. That’s what I have at my house!

      Good luck!”

  10. Hello!
    I want to read your historical data proving sealant joints quality you have been used for a long time about 10 yeas. We are going to use silicone sealant for joints of big granite building. Please send me this data proving your granite sealant for joints, for example building picture, video and PDF….. Thank you in advance.

    • Hi, Lee,
      Thanks for reading! We’re glad to hear you enjoyed this project.
      We are always working on projects, and receive tons of similar requests for plans, records and PDFs; unfortunately, we do not have individual documents available for distribution.
      Take care,


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