Strength across larger openings
Aluminium can support broad fixed panes, casement windows, sliding windows and terrace doors. Its strength allows slimmer visible frames across larger spans, leaving more of the glass exposed.
The profile, finish, glass and hardware should be identified in the quotation. On a sliding arrangement, panel weight, rollers, tracks and the threshold all affect how the window moves.
Larger sliding and patio doors need frames and running gear suited to the size and weight of the glass.
Old aluminium and modern frames
Many older Costa Blanca properties have thin aluminium frames without a thermal break. Replacing the handle or rollers may restore normal operation but it will not change the insulation of the metal frame.
Modern aluminium profiles can include a thermal break between their internal and external sections. This reduces direct heat transfer through the metal. The glass and any external shade still affect how much heat reaches the room.
When the frame, glazing and sealing are all being changed, the work forms part of the main replacement-window service.
Aluminium near the sea
Salt-laden air settles on frames, tracks and moving parts. The finish and hardware for a new window need to suit the level of exposure, particularly close to the coast.
Regular cleaning helps keep tracks and hardware clear. The advice on windows for properties near the sea covers the points worth checking when the opening faces strong wind or coastal air.
Repairs to an existing aluminium window
A sliding panel that drags, catches or jumps may have worn rollers, poor alignment or damage in the track. Casement faults can involve the handle, lock or the position of the sash against the frame.
The aluminium frame can sometimes remain when it is sound and compatible hardware is available. These jobs are covered by the window and door repairs service.
For new work, send a photograph showing the whole window and the surrounding wall or terrace finish. For a movement fault, a short video can show where the panel begins to catch.





