uPVC Wndow Seal Replacement Guide

How to Replace the Rubber Seal on UPVC Windows?

It’s easy to overlook the importance of window seal replacements in our houses. 

They assist to keep moisture out of the house, prevent draughts, and make our homes energy efficient. They do, however, not last forever. 

This is the first Home Improvements instruction on how to replace the rubber seal on UPVC windows.

What is a UPVC window seal replacement?

The rubber gasket that is frequently placed in UPVC windows and doors is referred to as a window seal replacement, these seals are often fitted around the opening of a window or door. 

Wedge and E-gaskets, on the other hand, are fitted around the glass panes themselves. 

What causes window seal failure?

Window seals fail for a variety of causes. The primary issue is simply time and how long they’ve been in place. 

This is due to the fact that over a lengthy period of time, the window seal replacement flattens and loses its efficacy. Shrinkage is the second cause of failing window seals. 

The cold weather might cause your seal to shrink, causing it to peel away from the corners of your windows and doors. 

This can also cause the rubber window seal replacement to harden and crumble over time.

Can they be repaired?

Window seals in UPVC windows and doors can be replaced in certain circumstances. This is a really simple process that requires minimal tools. 

Most rubber window seals can be removed and installed with just your fingertips. However, if you want to fix your window seal, you will be disappointed. Often it is almost impossible to find the seal that will fit into your existing profile. 

When window seals lose their form or become brittle, the only option is to replace them.

How long do seals typically last?

The majority of UPVC window seal replacements will operate for more than ten years. In fact, most window and door manufacturers will provide you with a 10-year guarantee, with First Home Improvements your warranty lasts 12 years for added peace of mind..

Having said that, we recommend that you inspect your window seals every 5 years, just to be sure.

How do you know when it’s time to replace your UPVC window seals?

If you are unsure if you need to replace your window seals, look for the following signs:

  • Windows with condensation.
  • Mould growing on the seals.
  • The sealant has gaps and fractures.
  • Draughts flowing in via your closed windows.
  • If the present seals are outdated or starting to deteriorate.
  • If it has been 5-10 years since your window seals were changed.

Steps involved in replacing a UPVC window seal

Step 1: 

Remove the window’s old rubber seal. This can be accomplished by squeezing a portion of the seal and peeling it away. 

It should be easy to peel off. If not, gently use a crafter’s blade.

Step 2: 

After you’ve removed the old rubber seal, check the window frame for any blockages. 

There may be some melted UPVC parts in the corners from time to time.

Step 3: 

Next, start by replacing the rubber seal on UPVC windows. Begin at one corner and make your way around the window frame. 

The rubber seal should simply slide into the slots of the frame.

Step 4: 

Repeat step 3 for all four sides of the window frame until the rubber seal completely fills the grooves.

Step 5: 

Finally, once you’ve completed installing the window seal replacement, examine the corners since there may be a little gap where the two halves of the seal fit together. 

If there is a gap, use a little amount of silicone sealant to completely seal it off.

What are the costs of getting a professional to do it?

When it comes to the window seal replacement cost, there are two factors to consider: supplies and labour. 

The cost of materials is relatively modest, with a decent quality UPVC window seal replacement costing between £10 and £15 per window. In terms of labour, you should expect to pay between £40 and £50 per window with a minimum service charge applied for the visit. 

When all of these factors are considered, the overall cost of window seal replacement is likely to be between £50 and £65.

Is it a good idea to DIY your UPVC windows replacement?

When considering whether or not to replace the window seal, there are a few factors to consider. 

Examine any damage to the window frame and assess whether the source of condensation or draughts is related to sealant concerns or something else. If it’s due to window or frame damage, you should call an expert to look at the problem. 

Hiring a professional may help guarantee that you have a high-quality finish with the proper seal. They can entirely prevent moisture from entering using this method. 

If the task is not done properly, the moisture can harm your windows and cause damage to your home. 

As a result, we would recommend engaging a specialist for the job. 

Need new windows or replacement window seals? First Home Improvements UPVC windows have been tested to last more than 30,000 cycles and up to 42 years of use, long-lasting windows with a 12-year warranty. To save constant issues with your old windows it may be worth replacing your windows with First Home Improvements utilising the finance options to spread the costs.  Contact us today for a quote on your home’s needs.

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