How to Check uPVC Profile Quality?

Check uPVC Profile Quality

Table of Contents

UPVC doors are now common in urban homes and apartments. They are commonly preferred to conventional door and window types such as wood and aluminum. This is mainly because they are more cost-effective than other options. Most of the uPVC profiles are reinforced with steel for additional strength. With effective locks, these doors and windows are secure to use in residential and commercial applications.

These windows and doors have low maintenance because uPVC does not corrode. To clean it, you just need to wipe it with a damp cloth. Additionally, uPVC material does not warp in hot weather like would wood that also rots due to moisture and water.

uPVC is also easier to customize in profile, shapes, and surface decorations than wood or metal. Besides, it comes in different colors that you can choose to match your design and styling preferences.

Since uPVC is a poor heat conductor, it prevents loss of energy from home during cold weather and climate. It also blocks the entry of heat during hot weather. This makes it more energy-efficient than metal.

The argon gas injected between the glazing panes also makes it more energy-efficient and prevents heat transfer between inner and outer environments. 

UPVC doors

What is a uPVC profile?

The unplasticized polyvinyl chloride (uPVC) is manufactured from uPVC powder. The powder is extruded to form any specific or desired shapes and designs also called the profile of the door and window. These are then properly finished into double or triple-glazed windows and doors.

What Types of uPVC profiles are there?

The types of uPVC profiles are mainly categorized into ovolo, chamfered, and flush profiles. The Ovolo profiles feature a sculptured frame with rounded edges. These are more suitable when you desire a more traditional look on the windows and doors.

Ovolo is suitable for rounded buildings. They also allow for a decorative finish and hence more suitable for people who want custom aesthetics on windows and doors. The sliding and casement uPVC profiles are also common.

Chamfered profiles feature a lean structure with flat edges and frames and a more contemporary appearance than the Ovolos. They are less decorative. These are the most common uPVC door and window profiles.

The Flush profile features sleek lines fitting flush into the frame. The sash creates a smooth and even contour on the outside when the window or door is closed. This is because the sash is level with the external window or door frame.

Other types of uPVC profiles include the frame profile which is L-shaped and made into different chambers and the mullion profile which is T-shaped and comes in different chambers. The glass bead uPVC frame profiles have uPVC bead trims on them and flies mullion profile is used for double open windows. Others are the pipe and adaptor profile used in homes with angled doors and windows and the corner profiles used in 90-degree corners.

How to check the quality of the uPVC profile?

Checking the quality of the uPVC profile carefully ensures you buy one that offers the maximum strength, durability, ease of maintenance, and comfort. Generally, stable uPVC profiles are at least 2.2 millimeters and at most 3 millimeters.

Profiles reinforced with galvanized steel resist corrosion and hence are more durable. They are more durable when used in moist conditions and weather. Plus windows and doors are always exposed to rainwater. Profiles that allow rainwater to flow out are also recommended.

Check uPVC frame profiles

Check that the uPVC frame profiles are rated as resistant to cracking and flaking. Flame-resistant rated profiles are also durable and prevented from fire damage in case they are exposed to fires. When buying, always go for lead-free profiles. These profiles are healthier to use given the health side effects of lead.

UPVC doors and windows can be UV radiation resistant and it is advisable to choose ones that have those specific UV ratings. These will not discolor or get a yellowish tinge with time. Remember doors are always exposed to sun rays. UV resistant doors contain about 2.5 percent of titanium dioxide in them and therefore check to see that this is provided in the material component listing provided for the window and door.

UPVC doors and windows also use glass. The glass can be of different types. You should choose this glass depending on its pricing and safety, in addition to its functionality. The float glass is transparent and very common in homes where owners want a clear view of the outside. A stronger option is the toughened glass. In addition to being strong, it breaks into small fragments and therefore safer to use than the float type. The float type breaks into sharp shards.

An even safer option than the two above is the laminated glass which has a resin between two glass layers. The glass sticks to the resin when they break so they do not fall off. These are safer to use with children. A thermal glass coating option is also advisable for anyone eyeing home energy efficiency. They prevent loss of heat from homes because the coating is a poor heat conductor.

Other types of windows include double-glazed types which comprise of two sheets between which an inert gas is filled. You can also improve the sound-proving of a home by installing double or triple glazed windows.

In addition to the above quality aspects, ensure the uPVC frame profiles have strong construction especially. Confirm that the paints and finishes won’t come off easily. Choose one that fits your living style and compliments your home design and styles.


LESSO uPVC windows are made of different profiles and come in different colors and shapes to suit anyone’s construction and design needs. The uPVC windows and doors can be categorized into sliding, casement, as well as tilt and turn, profiles.

Since the uPVC material that makes them is strengthened with steel, the doors and windows are durable and resist damage even in the harshest weather and climate. They also prevent easy breakage in case of burglary.

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