We’re sure you have plenty of questions to ask, especially if you are just starting out with your home improvement project.
We’re always happy to talk to you in person, whether that’s over the phone, by email or in person at our showroom. However, we’ve answered some of the most commonly asked queries here to give you the best possible head start.
Yes, all of the Kömmerling windows are covered by our Unique Lifetime Warranty. This means that for the length of time that you own the property, the window is guaranteed.
All other windows are covered by our 10 year guarantee.
uPVC paints do exist, but we wouldn’t recommend doing it as it doesn’t look particularly good. If you do decide to go ahead and paint them, then uPVC primers make it easier to paint onto the uPVC.
Do bear in mind, though, that once they have been painted it is almost impossible to return them to their original colour. Please also note that painting your window frames would invalidate your warranty with us.
No, we don’t install Velux windows or Velux-style windows.
This all depends on where the condensation is forming. If the condensation is inside the unit, then this is likely to be down to a fault with the double glazed unit itself – usually the seal – and the unit will need to be replaced.
If the condensation is on the inside of the unit, it is probably caused by poor ventilation. For example, if you don’t have an extractor fan in the bathroom then moisture in the air from the bath or shower can settle on the glass as condensation.
Opening the window will usually reduce the condensation.
If the condensation you are experiencing is on the outside of your window, it means that the low emissivity glass is doing a good job of keeping the heat in your home, meaning that the outer pane of glass is cooler than the air outside. With single glazing or older double glazing, the glass units aren’t as effective at keeping the warmth in, which results in the outer pane being warmer and less susceptible to condensation.
Outside condensation is more likely in Spring and Autumn when we have clear nights and the temperature can drop quite quickly overnight, resulting in the dew-point being reached very quickly and condensation forming on the outside pane. The dew point varies depending on the outdoor temperature and the amount of moisture in the air.
You may also notice that not all of the panes in your home are affected in equal ways by early morning condensation.
This is because even subtle differences in the orientation and the position of objects outside the window can change the surface temperature of the glass to the point that one pane suffers and another does not. Any object, for example an overhang, a canopy or a tree, blocking off the window to a clear night sky may also have an effect. There is not a great deal that can be done to avoid the risk of condensation forming on the outside.
Turning the heating up more would have an effect but is understandably not a great option. Outside condensation does not often last long and soon disappears once the sun has risen and warms up the outer pane.
In most cases, yes. It involves replacing the sealed glass unit with one that includes integral blinds, as long as the window frame is compatible.
Flush casement windows sit level with the frame when closed, creating a sleek, modern look. Standard casement windows slightly overlap the frame, giving a more traditional appearance.
It is very unusual to require scaffolding to install uPVC windows and doors because they are installed from the inside. In the unlikely event that scaffolding will be needed for access reasons, we will discuss this with you on survey.
Yes, all of our doors (Rockdoor, Solidor, and Residor) come with a 10-year guarantee as standard, giving you peace of mind and long-lasting protection.
French doors are a pair of outward or inward-opening doors with large glass panels. They create a stylish connection between indoor and outdoor spaces, letting in plenty of natural light.
Patio doors are large, sliding doors that open horizontally. They are a great option for maximising light and providing easy access to your outdoor space without taking up extra room.
Bifold doors consist of multiple panels that fold and slide to one side. They are ideal for creating a wide, open space between your home and garden, perfect for blending indoor and outdoor living.
uPVC doors are made using a subframe that is glazed with a panel or double glazed unit. They are robust, low-maintenance, and cost-effective. Composite doors combine several materials, making them thicker, stronger, and more secure. Composite doors are made all in one slab like a traditional timber door, thereby offering better insulation and durability.
We offer patio doors in both uPVC and aluminium. uPVC is affordable, low-maintenance, and energy-efficient, while aluminium is more durable, slimline, and offers a sleeker, modern look.
Bifolding doors have multiple moving parts, and aluminium offers superior strength and durability. It resists warping and flexing over time, making it the best choice for long-lasting performance.
Yes, you can fit an alarm contact, but be aware that any drilling or screwing into the frame or door will void the guarantee. It’s best to check with your alarm provider for non-invasive installation options.
Yes, it’s possible to add a cat flap, but not all door styles are compatible. We’ve put together a handy guide with more details: Cat Flaps in Composite Doors: A Guide for Pet-Friendly Homes.
Yes, all of our conservatories come with a comprehensive 10 year guarantee, giving you peace of mind about the quality and longevity of the installation.
A polycarbonate roof is made from lightweight, durable plastic panels. It’s a popular choice for conservatories due to its affordability and insulation properties, although it doesn’t offer the same clarity or longevity as glass.
A glass conservatory roof uses high-performance, thermally efficient glass panels. It allows more natural light into the space and provides better insulation and noise reduction compared to polycarbonate.
A Guardian Warm Roof is a solid, insulated roof system designed to replace traditional glass or polycarbonate conservatory roofs. It makes the space feel more like a proper extension by improving insulation, reducing glare, and maintaining a comfortable temperature year-round.
In most cases, you won’t need planning permission for a conservatory, as they typically fall under permitted development rights. However, larger or more complex structures may require approval.
If you are considering any kind of home improvement project it is always best to contact your local authority to see whether or not you need planning permission.
Most window and door frames are compatible with conservatory roofs. However, the size and structural integrity of the frames will determine compatibility. Our team can advise on the best options based on your specific requirements.
Double glazing uses two panes of glass with a gap in between, filled with air or argon gas. This creates insulation, helping to keep your home warmer and reduce outside noise.
Triple glazing is made up of three glass panes with two cavities filled with air or argon gas. It typically offers even better thermal efficiency than double glazing.
Laminated glass is a type of safety glass that is made using two or more layers of glass that are bonded together using a transparent plastic inter-layer. This prevents the glass from shattering when struck, providing excellent standards of safety and security. It is particularly useful in applications where large panes of glass are present, for example in patio doors.
Low E Plus glass has a special coating that reflects heat back into your home. This makes your windows more energy efficient by keeping the warmth in.
Acoustic glass is designed to reduce noise. It uses multiple layers with a special interlayer that blocks sound waves, making it ideal for noisy areas.
U-values measure how well a window prevents heat from escaping. The lower the U-value, the better the insulation.
The WER system rates the energy efficiency of windows from A++ (most efficient) to E (least efficient), based on factors like heat loss, solar gain, and air leakage.
Integral blinds are Venetian, pleated or blackout blinds that are sealed between the panes of a double glazed unit. This design keeps the blinds protected from dust and damage, offering a low-maintenance solution for controlling light and privacy.
Yes, glass with integral blinds can be installed into most existing window frames, provided they can accommodate sealed units that are 24mm thick or more. Please note that retrofitting these blinds involves replacing the full glass unit – blinds cannot be fitted into existing glass units.
Generally, integral blinds are compatible with most window and door types, including inward and outward opening, sliding, and bi-folding designs. However, it’s essential to verify compatibility with your specific window or door system.
One of the key benefits of integral blinds is their minimal maintenance. Since they are sealed within the glass unit, they remain free from dust and don’t require regular cleaning. You only need to clean the glass surfaces as you would with standard windows.
Black out Blinds
Min W = 200mm | Min H = 200mm
Max W = 800mm | Max H = 1800mm
Pleated Blinds
Min W = 200mm | Min H = 200mm
Max W = 1200mm | Max H = 2000mm
Venetian Blinds
Min W = 300mm | Min H = 450mm
Width from 300mm to 350mm = Max H 1400mm
Width from 351mm to 400mm = Max H 1800mm
Width from 401mm to 1500mm = Max H 2200mm