The 5 most common selection mistakes windows - avoid it in 2025!
Selection windows is one of the key decisions when building or renovating a house. It is an investment for many years - not only aesthetically pleasing, but above all functional and energy-efficient. Unfortunately, many investors make mistakes in the process, which can cost a lot. Find out what avoidso that you do not regret your decision later.
❌ 1. Selection of the cheapest windows from the market
Tempting prices in DIY stores can tempt many. The problem is that the cheapest windows are often made of low-quality profiles and glazing with poor insulation properties. Such windows can deform over time, lose their airtightness and lead to higher heating bills.
At GM PLAST we offer high quality PVC profilesincluding energy-efficient systems such as Salamander bluEvolution 82 or Kommerling, that meet passive house standards.
❌ 2. Assembly without tapes - only on foam
This is one of the greatest sins in assembly windows. Foam-only installation without the use of vapour-proof and vapour-permeable tapes leads to thermal bridges, dampness and mould.
Warm installation with tapes is now a standard in modern construction - it guarantees better airtightness and durability of the entire structure.
At GM PLAST we offer professional, warm installation as standard, taking care of every detail.
❌ 3. Ordering windows without prior consultation
All too often, customers order windows without consulting the fitting company, which ends up with incorrect dimensions, incorrect opening or mismatched components. This generates additional costs and nerves.
At our company, we always send out fitters to take exact measurements and verify the details before installation - so that everything fits perfectly.
Many investors are put off buying roller shutters or mosquito nets "for later". This is a mistake, because fitting them later to the already installed windows can be more difficult and expensive.
At GM PLAST we offer comprehensive solutions: roller shutters external, overhead, concealed and mosquito netswhich blend in perfectly with our window joinery.
❌ 5. Wrong choice colour - fashion instead of practicality
Black windows look modern, but won't work everywhere - especially on the south side, where they can get very hot. White windows get dirty more easily. It's worth thinking carefully about the choice of colour, not only in terms of aesthetics but also practicality.
We offer a wide range of colours: from anthracite, walnut and golden oak to modern variants such as Vintage Oak or Nebraska.
✅ Summary
Selection windows is not just a matter of taste - it is also a decision that affects the comfort, maintenance costs of your home and the longevity of your entire investment. By avoiding the above mistakes, you gain peace of mind for years to come.
Looking for a professional company to help you select and install the right windows? Contact us - we will prepare a free quote and advise you on the best solution.