Steel Casement Windows vs. Aluminum Casement Windows

If you’re seeking a unique style for your windows, you may want to consider steel casement windows. Casement windows have hinges at the sides, with one or more locking handles. They open out, unlike the traditional model that slides up and down. They have been used in buildings for centuries. Casement windows bring several benefits to a home which partly explains why many homeowners opt for them. Some of their benefits include increased energy efficiency, depending on the material used, and improved ventilation. Two commonly used materials for casements are steel and aluminum. Below is a comparison.

Pros of Steel Casements

Steel casements are amongst the most resilient you can purchase. You can count on steel to last a lifetime. For many old homes, windows with steel casements will hold up even when the rest of the house is falling apart. With some simple maintenance work, steel casements that may appear old and in poor shape can quickly be restored to look as good as new. Once fitted, it is extremely difficult to bend or break steel casements. This makes them a good choice to boost home security. Burglars are unlikely to tamper with your windows because of the difficulty that steel presents. Steel casements can be painted unlike aluminum. If you desire a new look or different color for your windows this is easily achieved through painting. Painting also helps to protect steel casements from rust and corrosion.

Cons of Steel Casements

Steel costs are considerably higher than aluminum. To install steel casements you’ll need to be prepared for the costs. Steel is a high maintenance material to use on windows. It is subject to rust and corrosion. This compels you to paint or use protective coating on a regular basis. Insulation properties of steel are low. Much heat escapes through the casements while moisture condenses on the inside. This doesn’t help much towards household energy efficiency. With steel casements you can expect to also receive higher energy bills.

Pros of Aluminum Casement Windows

Aluminum is one of the lower-priced metals you can use for window casements. The affordability makes it a good choice for many homeowners. Unlike steel which is subject to rust and corrosion, aluminum does not experience these problems. This gives aluminum casements an edge over steel. Aluminum is a low maintenance material to use for window casements. You needn’t paint or use protective coating to keep them in good condition. Yet aluminum will keep its new and shiny look for a long time.


Aluminum casements are also not as durable as steel casements. If enough pressure is applied, aluminum casements will easily dent or bend. This makes it easier for burglars to gain entry into your home. Like steel, aluminum rates poorly in energy efficiency. You can install thermal breaks on your aluminum casement windows to improve on energy efficiency. These separate the exterior and interior windows. However, this will add to your overall costs.