Aluminium windows for renovations are the easiest way to modernise a home – swapping tired steel or timber for slim, low-maintenance, secure aluminium. Coetz makes aluminium windows and doors for renovations to measure and supplies them direct, so you upgrade without the upkeep.
Replace old steel and timber
Rusting steel and rotting timber windows drag a home down. Aluminium replacements bring slimmer sightlines, better security, easier operation and near-zero maintenance, and powder-coated finishes hold their colour for decades. The result looks sharper and performs far better.
Made to measure for existing openings
Renovations are all about fitting existing openings. Our how to measure guide walks you through it, and where an opening is non-standard, Coetz Custom builds to the exact size. Choose sliding or French doors to open up a living space, or casement windows to match the original look.
Why upgrade to aluminium
See how aluminium compares to steel, and check the cost of replacement. Aluminium natural corrosion resistance is why it outlasts what it replaces, especially in coastal and high-UV conditions.
Upgrade room by room, or all at once
You do not have to do the whole house at once. Aluminium windows for renovations can be replaced room by room as budget allows, or in one go for a full transformation. Living areas gain the most from sliding or stacking doors onto a patio, while bedrooms and bathrooms suit neat casement or top-hung windows. Whatever the phasing, made-to-measure aluminium drops straight into your existing openings with minimal disruption.
Aluminium windows for renovations FAQ
Can you replace my old steel or timber windows?
Yes – aluminium windows and doors made to measure are the ideal replacement for tired steel or timber.
How do I measure my existing openings?
See our how to measure guide, or ask us and we will help you get it right.
Do you install?
We are supply-only; your installer fits them. This keeps renovation costs down.
Quote your renovation
Send us your sizes and we will quote your replacement windows and doors.
Looking for aluminium windows for renovations? Coetz Glazing has you covered.
Coetz Glazing supplies aluminium windows for renovations across the area.
What to expect from Coetz Glazing
Every aluminium windows for renovations order at Coetz starts with a free measure and a fixed-price quote, so you know exactly what you are getting before any work begins.
We manufacture to size in our own factory, glaze with 6.38mm laminated safety glass as standard, and powder-coat the aluminium in the colour that suits the building.
Because we manufacture and supply every aluminium windows for renovations ourselves, one accountable team looks after your order from the first measure to delivery, backed by a workmanship guarantee.
Why aluminium is the right choice
For aluminium windows for renovations, aluminium is the material that lasts. It will not rust, warp or rot, it shrugs off the South African sun, and it needs almost no maintenance beyond an occasional wipe-down.
Our frames are powder-coated in any colour, from crisp white and charcoal to bronze and natural anodised finishes, so the windows match the architecture instead of fighting it. Slim sightlines let in more glass and more daylight.
Every unit is glazed with 6.38mm laminated safety glass as standard, which improves security, cuts outside noise and holds together if it is ever broken. Double glazing and performance glass are available where thermal comfort matters.
We manufacture aluminium windows for renovations to your exact sizes in our own factory, so there is no waiting on imported stock and no compromise on fit. Large and repeat orders are planned and delivered on schedule.
From a single building to a full development, Coetz manufactures and supplies what we make. One accountable team, one point of contact, and a workmanship guarantee stands behind every order.
Ordering and lead times
Getting a price for aluminium windows for renovations is quick. Send us your sizes or a plan, or book a free site measure, and we return a clear, itemised quote with no obligation and no jargon.
Standard configurations are manufactured within a short lead time, and larger projects are scheduled around your build programme so everything arrives when you need it, not before.
We work with homeowners, builders, architects and developers, and we offer trade pricing on volume. Whether you need one opening or a full building of aluminium windows for renovations, the process and the quality stay the same.
Contact Coetz today for a quote, technical advice or a site visit, and deal directly with the same team that manufactures and supplies your order.