Dos and Don’ts of DIY Boat Windshield Replacement

by whatsmind

While cracked glass and leaky boat windows will cost you a good amount of money, there’s always an option to carry out the project on your own. Boat owners often try to handle their damaged boat windshields using DIY remedies. However, not all of them are professional enough to do it well.

It is not that they cannot do it, but they are uninformed and unfamiliar with the process, unlike professionals. Hence, before proceeding with the tough battle to replace your boat’s windshield, it is essential to know its dos and don’ts.

Also read: Roof replacement cost


  • Take the right and precise measurement of your boat’s window. Whether you choose a fixed or sliding window, it is important to know its specs. It is not just the glass size but also the window’s thickness and panel measurement that you should find out about.
  • Wipe out old sealant residue: Applying a new seal over the old one may affect its quality. So, before replacing the windshield, clean the old sealant using a scraper and paint thinner. You can also use sandpaper if the surface is corroded.
  • Make oversized holes: To keep the glass surface from cracking, make holes bigger than the usual requirement. For instance, if you want to use a ¼” size screen, make the hole of 7/16”.
  • Select the seal according to the material: It is essential to pick a seal according to the windshield material you have selected. Ask a reliable marine supplier to suggest the right sealant to you.


  • Putting the sealant on the wet surface: When you clean the surface of the window frame, ensure the frame’s surface is completely dry, or else the adhesive will not work efficiently.
  • Tighten the screws in the holes: Tightening the screws too much can cause cracks. Allow the screw heads to rest flush on the plastic surface.
  • Using loose sealant: Make sure you use the sealant correctly. Coat the complete surface that will make contact with the windshield. It is suggested to use a lot of sealant rather than a limited quantity.
  • Remove the excess sealant: When you add a generous layer of sealant, the excess should be removed once the windshield is applied. Don’t try to squeeze in the sealant, or it can make the window crack. 

Boat windshield replacement is a tough job. And, if you are taking it up for the first time, it can be quite daunting too. However, if you have the right understanding of the process, material, and equipment, it can be a rewarding experience. Since it is not a daily task, you may not be a professional in it.

Hence, hiring a professional to do it for you is always recommended. With a skilled and informed professional by your side, the project can be carried out easily. It just eliminates the risk of wasting the material and time of the owner. So, look out for boat windshield replacement near me and consult them for replacement services to get instant help. 

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