What are the downsides of aluminium windows?

The main downsides of aluminium windows are a higher upfront cost than uPVC, condensation on frames without a thermal break, and finish quality that varies by supplier. Most are avoidable with a thermally broken system, a quality coating and careful installation.

Which downsides are real?

  • Higher initial cost than uPVC
  • Condensation risk on frames without a thermal break
  • Finish that can fade or scratch if the coating is low grade
  • Lead times can be longer, as frames are made to measure

Which downsides are overstated?

Poor insulation is mostly an issue of older frames. Modern thermally broken frames with quality glazing can reach an A rating. Maintenance is light: occasional washing and checks on drainage slots and seals.

How do you avoid the downsides?

Specify thermal breaks and warm-edge glazing, ask for the coating guarantee in writing, and have the windows surveyed and fitted by a registered installer.

The specification decides how many of these downsides apply to you. Jake surveys every job himself, and JMF Windows Oxford fits aluminium windows with a 10-year guarantee and Certass registration.

Thinking about new windows? Jake surveys every job himself, and our quotes are free, in writing and without obligation. We fit across Oxford, Kidlington, Bicester, Witney, Abingdon and the villages around. Call 01865 708464 or ask for a free quote.

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