Common Mistakes To Avoid During Installation Of UPVC Window And Doors
                     Common Mistakes To Avoid During Installation 
Of UPVC Window And Doors 
 
UPVC (Unplasticized Polyvinyl Chloride) windows and doors have 
become increasingly popular in recent years, thanks to their energy 
efficiency, durability, and low maintenance. However, the success of 
UPVC windows and doors installation largely depends on the quality 
of the installation process. Even minor mistakes can lead to problems 
like leaks, drafts, and other performance issues. In this blog, we will 
discuss the common mistakes to avoid during the installation of 
UPVC windows and doors. 
 
 
Mistake 1: Incorrect Measurement 
One of the most common mistakes that people make while installing 
UPVC windows and doors is incorrect measurement. If you do not 
measure the opening properly, the window or door will not fit 
properly. It is essential to measure the width, height, and depth of 
the opening accurately. If the measurements are incorrect, you will 
have to go through the hassle of returning the product or cutting the 
opening to fit the product. 
 
Mistake 2: Poor Quality Materials 
The quality of the materials used during installation is just as 
important as the quality of the UPVC windows and doors themselves. 
Poor quality sealants, adhesives, and screws can lead to problems 
like water leaks, drafts, and structural issues. Always use high-quality 
materials that are recommended by the manufacturer to ensure that 
the installation is durable and long-lasting. 
 
Mistake 3: Incorrect Installation 
The installation of UPVC windows and doors should be done by a 
professional or someone with experience in installing them. Incorrect 
installation can lead to a wide range of problems, including air leaks, 
water leaks, and drafts. Additionally, incorrect installation can 
compromise the security of your home or building. Always follow the 
manufacturer's instructions and hire a professional to ensure that 
the installation is done correctly. 
 
Mistake 4: Not Preparing the Opening Properly 
Before you install UPVC windows and doors, you must prepare the 
opening properly. This involves cleaning the opening thoroughly and 
removing any debris, dirt, or old sealant. Additionally, you should 
ensure that the opening is level and square. Failure to prepare the 
opening correctly can lead to problems with the installation, such as 
air leaks, water leaks, and structural issues. 
 
Mistake 5: Failing to Install a Drip Cap 
A drip cap is an essential component of the installation process. It is 
a piece of metal or vinyl that is installed above the window or door 
to divert water away from the opening. Without a drip cap, water 
can seep into the opening, leading to problems like rot and mold. 
Always install a drip cap to protect your home or building from water 
damage. 
 
Mistake 6: Forgetting to Insulate 
Insulation is critical for energy efficiency and preventing air leaks. If 
you fail to insulate around the perimeter of the opening, you will lose 
heat or air conditioning through the gaps. This can result in higher 
energy bills and reduced comfort in your home or building. Always 
use high-quality insulation material to seal around the perimeter of 
the opening. 
 
Mistake 7: Not Testing the Installation 
Once the installation is complete, it is essential to test the windows 
and doors for leaks, drafts, and other performance issues. This 
involves using a smoke pen or a thermal imaging camera to detect 
any air leaks. Additionally, you should check for proper operation, 
including opening and closing the windows and doors, to ensure that 
they function correctly. 
 
In conclusion, UPVC windows and doors installation is a significant 
investment in your home or building. To ensure that the installation 
is successful, it is essential to avoid common mistakes like incorrect 
measurement, poor quality materials, incorrect installation, failing to 
prepare the opening properly, forgetting to install a drip cap, failing 
to insulate, and not testing the installation 
Name: Doorwin Glazing Ltd 
Address: 27 CROSS STREET, WILLENHALL, WEST MIDLANDS, 
ENGLAND WV13 1PG 
Call Us: +44 7459567119 
Email Us: [email protected] 
Website: https://doorwinglazing.co.uk/