Retrofitting versus replacing old windows? This is a really important topic, which is becoming more and more relevant in the context of rising energy prices and increasingly stringent energy standards.
Another issue, too, is that there is a lot to list. The secondary market for real estate is booming and with this comes a lengthening list of issues to consider when calculating the cost of purchase.
Let’s find out which is more worthwhile.
When does it make sense to retrofit windows?
Upgrading windows can be a sensible solution in many cases. It’s worth considering this option especially if the frames themselves are in good working order and the problem is mainly the glazing or seals. If your windows are made of high-quality materials and their aesthetics fit well with the character of your home, upgrading may be more cost-effective. For example: replacing the glazing with energy-efficient glass or applying additional low-e coatings can improve the thermal insulation of your windows without having to replace them altogether.
Retrofitting can also make sense in the case of historic buildings where replacing the windows would be difficult for formal or aesthetic reasons. In such cases, it is worth investing in solutions that preserve the original appearance of the windows, but at the same time improve their technical performance. For example, by replacing the old glazing with modern glass with better acoustic and thermal insulation; or by using special gaskets that improve the tightness of the windows and prevent draughts and heat loss.
However, retrofitting has its limitations. If the windows are severely damaged or worn, and the maintenance measures will not bring tangible benefits in terms of energy savings, it may be more cost-effective to replace them in the long term.
Retrofitting can sometimes be beneficial when the problem is only with small components (gaskets or fittings), but where heat loss is high, full replacement can result in greater savings.
Replacing old windows with new ones – when is it a necessity?
Over time, windows wear out and no longer fulfil their original function. Replacement of old windows becomes necessary when their technical condition prevents effective modernisation or when the windows no longer meet current energy standards.
Most often, windows need to be replaced when the damage is so severe that it makes further use impossible. For example, in the case of cracked glass, warped frames or leaky gasket fixing points through which cold air penetrates.
Replacement is also advisable in buildings that have a high energy standard. For example: in energy-efficient or passive houses. In these cases, retrofitting old windows often does not have the desired effect.
Replacing old windows with new ones is also a step towards improving living comfort. The technologies currently used in window joinery are not only more energy efficient, but also better at insulating noise. Replacing windows can also have aesthetic benefits – especially if your old windows are deformed, worn or simply don’t fit in with your modern interior style.
Retrofit versus replacement costs – which is more worthwhile?
Retrofitting, at first glance, may appear to be the cheaper option, especially if we are only talking about replacing gaskets or glass. The cost of such measures is considerably lower than a complete window replacement. Seemingly, trying to renew the window frames makes it more affordable for people who do not want to invest a lot of money.
However, what about the longer term? The windows currently available, especially those with improved insulation characteristics, contribute to significant savings on heating costs. Depending on energy consumption, the investment in high-quality windows can pay for itself within a few years.
The lifespan of new products is also significantly longer than that of refurbished windows. While refurbished windows may require further repairs over a period of several years, freshly purchased window joinery will be more resistant to damage and wear.
The ecological aspects are also worth considering. Although the association of ecology with recycling and just retrofitting certainly comes to mind, it is worth pointing out that it is the new windows that are manufactured with a view to minimising environmental impact. Their construction is based on materials that are greener and more energy-efficient. Retrofitting old windows, although cheaper in the short term, may not meet modern environmental requirements.