Window Leaks When It Rains How To Seal Windows From Water Leaks

The worst time to find out that you’ve a leaky window is during an excessive rainstorm. If you can repair the issue forward of time, you’ll shop the integrity of the window as well as the wooden round it. Sealing a window is really simple while you’re utilizing caulking.

So, do you desire to understand how to seal home windows from water leaks? Follow those steps:

  1. Remove the old sealant with a putty knife.
  2. Wipe down the world with a dry rag.
  3. Wait for it to dry (use a tarp if it’s raining).
  4. Apply a thin bead of caulk sealant across the window.
  5. Let it dry and remedy for at least 24 hours before eliminating the tarp.

Throughout this article, you’ll additionally be trained what causes leaky windows, what equipment and presents you’ll must repair yours, and while it’s time to replace an ancient window.

How to Seal Your Window to Avert Water Leaks

Minor water leaks can become serious difficulties by weakening the wooden around the window. Over time, a small trickle can cause an entire window body to have wood rot, breaking it out of the wall. When it might look excessive, this situation is a ways from rare.

The value of maintaining perfectly seal windows, particularly in the course of wet seasons, can’t be understated. Before you begin removing sealant and start working on the window, it’s important that you have every thing you would like for the job.

Supplies & Prep Work

Getting the correct sort of caulk is important if you want your windows to stay sealed. Traditional silicone caulk is a surefire way to weaken your window frame’s seal since it can’t take the constant impact of rain, hail, snow, and direct sunlight.

Along with sealant, let’s look into all of the presents that you wish to start the job, as well as how you could get prepared to start working. Here’s every thing you wish to be ready:

  • You’ll want a putty knife to take away the ancient caulking from the area. All windows are established with caulk around the edges, so there’ll almost inevitably be a few historical bits that must be removed. Putty knives are thin and lengthy sufficient to take it off in sections, so attempt the Qualihome Putty Knife Set to just remember to have the correct size.
  • Get a brand new tube of acrylic caulking sealant, like this Sashco Big Stretch High-Performance Sealant. It’s the best kind to apply for home windows because it can withstand the constant pressure of rain and the warmth of direct sunlight. If you use silicone through itself, you’ll have to replace it once per annum or two.
  • Several rags are also going to be required for the reason that you’ll must dry the realm and remove extra quantities of caulking. On no account permit it drip. In fact, you could use blue tape, which includes ScotchBlue to prevent it from falling all over the place. Remove the tape once you apply it and you’ll be left with a smooth, straight line of caulk.
  • (Optional) Get a tarp or a canopy tent to keep the window dry for no less than 24 hours after utilising sealant. You don’t must use both of them if it’s no longer raining external for the reason that nothing will get it moist (aside from sprinkler systems, fountains, etc.).

A Step-by-Step Guide to Sealing Window Leaks

When you have every thing you wish ready to go, it’s time to start sealing the leaky window. It’s now not a nasty inspiration to place each of the supplies inside arm’s reach, especially given that you need as a way to act quickly with a sealant that starts offevolved to drip.

Here’s the step by step technique of sealing home windows with leaks:

  1. Take a putty knife and remove all of the historical sealant. If you try to pass over it with a new tube, you’ll nonetheless have an analogous deficient basis sitting underneath. It’ll start to disintegrate and you’ll be left with a similar condition that you tried to repair. Always use a putty knife at a 25-degree angle.
  2. Use a dry rag to wipe down the area wherein you’ll be utilizing the sealant. Moisture is the enemy of caulking that needs to cure, so utilizing rubbing alcohol is a good idea. The aggregate of alcohol and a rag with be more than enough to organize the realm for a new layer of caulk.
  3. Wait for it to dry. This procedure may take up to 24 hours, particularly in case you stay in a humid area. Remember that you’ll have to exchange the inside and exterior caulk because you don’t want to have to go back and repeat an analogous technique afterward within the year. Use fans or tarps to protect the sides from moisture.
  4. Use acrylic caulk to use a skinny bead alongside the edges of the window frame. Don’t neglect to apply blue tape if you want an accurate placement from end to end. Repeat this step on the inside and outside, ensuring that the traces of tape are even and level. Also, don’t add an excessive amount of caulking. It should be just big enough to hide the full crack.
  5. Keep the tarp or umbrella over the sealant till it dries. This technique usually takes about 24 hours. No matter if it feels dry on the outside, the middle of the bead will take an afternoon or so that you could cure completely and bond with the window frame. Again, using fans and blowdryers is a great way to hurry up the drying process.

Why Does Your Window Still Leak After Exchanging the Sealant?

If your window nonetheless leaks after you’ve applied the silicone caulking across the edges, then anything wasn’t finished properly. Either the foundation was wrong or you didn’t enable for sufficient time earlier than the bead obtained wet from rain or humidity.

Regardless of the result, let’s look at why your window might nonetheless leak after you’ve applied a brand new sealant:

  • Your window would have a small crack that you don’t see. It doesn’t matter how good you apply the sealant, none of it is going to repair a cracked window. Cracked windows are the trigger of leaks extra often than not. Rocks, roughhousing, and all kinds of other mishaps can trigger cracks which are too small to notice correct away.
  • There might’ve been gaps on your work. If you utilized the caulk too quickly, then there’s a chance that holes formed. When caulk starts to dip into the cracks of a window, you need to add another layer to point it out sometimes. In case you overlook to, you’ll become with a porous sealant that does you no good at all. Necessarily double examine your work!
  • If you don’t get rid of each of the extra historical sealant across the edges before you follow a new layer, you’ll surely run into trouble. It might start leaking straight away or in a year, but layering over ancient caulking is never a good idea. Adequately examine the window frame before you start using a brand new tube.
  • Loose home windows trigger difficulties as well. If your window isn’t held within the body o.k. or if the wood is rotting away, a easy bead of sealant won’t change anything. It would decrease the amount of water coming through, yet you’ll ought to manage leaks regardless of what. Unfortunately, a brand new window body is the only fix for this issue.

What Motives Window Leaks During Rain Storms?

Leaky home windows are a discomfort to manage notwithstanding what. However, if you’re able to figure out what’s inflicting it, you can hinder it from showing up. With that being said, all sealant has a constrained lifespan.

Caulk generally lasts for about 5 years, so don’t count on a lot more than that. Below, you’ll uncover the five leading causes of leaky windows:

  • The main trigger of a leaky window is loose sealant. As outlined across this article, you ought to update and maintain caulking through following the stairs above. Ancient sealant dries, crumbles, and falls off of your window. Without suitable sealant, leaks are bound to expose up.
  • Using the incorrect sort of caulk could also trigger all types of issues correct away. Acrylic caulk is the best type to apply for home windows and different outdoor purposes, so keep it up when you’ve got the opportunity. Traditional silicone and low-quality caulk can ruin apart and unfasten from the window frame.
  • Single-pane home windows allow water to get via much less difficult because they give much less of a barrier. Double-pain windows have extra longevity and structure, in order that they don’t crack as easily. Additionally they have infinitely higher insulation, so there are more than enough motives to upgrade.
  • As mentioned within the earlier section, cracked home windows are an additional common cause of leaky windows in the course of rainstorms. They’re made much worse with heavy winds and as time is going on, so it’s best to fix the crack with a resin material as soon as possible. You’ll store yourself plenty of money, too!
  • If you bump any window hard enough, the caulk could lose its seal. You might now not detect whatever through seeking at it, but water will start to pour by means of to any other side. Unfortunately, you’ve got to repair the sealant much sooner than you initially thought.

As you could see, there are a plethora of causes for leaky windows. Luckily, you presently have the understanding that you need to fix such issues. That being said, you probably don’t want to have to remove the total strip of sealant in case you don’t have to. For patchwork suggestions, continue to the subsequent section.

How to Patch Historical Window Caulking

If you have home windows which are partly exposed to sunlight while the tops aren’t, then there’s a high chance that the lowest portion will crack first. While it does, you possibly tempted to exchange the whole deal.

The good information is that you can patch window seals by utilizing caulking, rubbing alcohol, and blue tape. You don’t must spend hours doing it either. In fact, a easy reapplication can take as little as 10 minutes if you recognize what you’re doing.

Follow the directions below to patch your window’s sealant:

  1. Start with the aid of using an analogous putty knife outlined within the first section. Just be sure you don’t eliminate any caulking that’s now not damaged. Think about placing blue tape over the areas that you don’t desire to replace.
  2. Next, use rubbing alcohol or dish soap to scrub the surface. This step is imperative to avoid the caulking from loosening too quickly. Await it to dry for some hours or use a fan to speed up the drying process.
  3. Use a brand-new tube of acrylic caulk to seal the window. Overlap the ancient sealant that’s staying at the back of so there aren’t any gaps. You may scrape off any extra caulk later on, yet right now it’s important to avoid holes from forming.
  4. Remove the blue tape once you’ve finished making use of the hot sealant. Don’t eliminate it too quickly or it might fling many of the sealant all over the window. Wait for a minimum of 24 hours for it to dry and cure before you place any strain on the window.

The so much important portion of this whole fix strategy is which you overlap and fasten the ancient caulking to the hot bead that you’re applying. Through following those four steps, you’ll be capable of stretch out the time among redoing the entire window’s sealing.

When Is It Time to Update a Leaky Window?

If you recognize what the cause is, then you’ll be capable of find a answer in no time. As mentioned previously, the window itself perhaps the issue.

The commonplace window in a home lasts between 15 to 20 years earlier than it must be replaced. If you’re taking appropriate care of your home windows with the aid of cleansing them and replacing the sealant each five years while doing repair patches in between, then you definitely don’t have to stress about anything else.

Unfortunately, fallacious care and forget can trigger home windows to break easier. If you don’t reseal as usually as you should, then cracks will shape and the glass will turn out to be much less durable. As moisture receives in, mold will shape and the wood surrounding the window will rot.

Even through actually cleansing your home windows frequently with cleaner, you’ll hinder it from cracking. Dust and mud that build up trigger heat to roast your windows relatively literally! Try to make it a activities to wipe down your windows a minimum of two times a month (once every week is best).

Finally, you would possibly think about changing your windows if they don’t maintain out the external temperature. Single-pane home windows are awful for insulation, yet some windows have thinner glass than others. As a way to upgrade, you’ll enhance the integrity of your windows and lengthen the time between sealant applications.


When your window leaks in the course of a rainstorm, it could trigger all kinds of issues. No longer in basic terms does it provide you with a headache, yet it can invite mold, termites, and wooden rot. Through reapplying sealant, maintaining your windows clean, and patching it while you need to, you’ll be capable of preserve a dry environment around the window frames of your home.

Here’s a quick recap:

  • Rags, rubbing alcohol, sealant, dish soap, and a putty knife are all you wish to seal your windows.
  • Make certain you use acrylic caulk instead than silicone considering it’s designed for outside applications.
  • Always practice caulking inside and outside of each window.