Retrofit uPVC Windows

Upgrade your windows without losing your home’s character.

Retrofit fits new double-glazed uPVC into your existing frames — a warmer, quieter, drier home with less disruption. Ideal for renovations and older Canterbury homes.

What retrofit means

New glazing, your existing frames.

Rather than removing all your joinery, we fit new double-glazed uPVC units into the frames you already have. You keep the look of your home, and gain the warmth, quiet and condensation control of modern glazing.

It’s a lighter-touch upgrade — less mess, less time on site, and often a more affordable route to a more comfortable home.

  • Keeps your characterThe frames and proportions you love stay put.
  • Less disruptionFaster on site, room by room, home stays secure.
  • Real performance gainDouble glazing where there was single.
  • Is retrofit right for you?

    Retrofit suits some homes better than others.

    It works best where your existing frames are sound and you want to keep your home’s look. Where frames are past it, full replacement is the honest call — and we’ll tell you.

    • Older villas and bungalows with character worth keeping
    • Renovations where you’re upgrading room by room
    • Sound existing frames that don’t need full replacement
    • Homes where you want less mess and a faster turnaround
    What changes

    The difference you’ll feel.

    Warmer rooms

    Double-glazed uPVC units hold heat far better than the single glazing they replace.

    Less condensation

    Warm-edge spacers and better glazing help manage the morning streaming on the glass.

    Quieter inside

    Upgraded glazing noticeably softens road and street noise.

    The part that gets skipped

    Retrofit lives or dies on a clean, sealed fit.

    A great frame fitted poorly still leaks heat, lets in draughts and invites condensation. Our installation is where comfort is actually won — sealed, square and finished properly.

    Talk to us
    Recent work

    Retrofits and renovations.

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    Honest pricing

    A warmer home, without the full rebuild.

    Tell us what you need and we'll get you a clear quote quickly — the right system for your home, priced properly. And if you've got a genuine like-for-like quote from someone else, we'll beat it by 10%.

    Get your free onsite quote
    • European systems built to perform in NZ conditions.
    • Specified for your home, not a one-size catalogue.
    • Installed by people who know the system.
    Good to know

    Frequently asked questions

    What does retrofit actually mean?

    We fit new double-glazed uPVC into your existing window frames, rather than removing the whole joinery. It’s a lighter-touch upgrade that keeps your home’s look.

    Is retrofit as good as full replacement?

    For warmth, quiet and condensation it makes a real difference. Full replacement performs best overall — we’ll be straight with you about which suits your frames and goals.

    Will it suit my older home?

    Often, yes. Retrofit is well suited to villas and bungalows where the existing frames are sound and you want to keep the character.

    How disruptive is it?

    Less than full replacement. Most retrofit work moves quickly, room by room, keeping the home secure and weather-tight throughout.

    Get started

    Keep the character, lose the cold.

    Tell us about your home and we’ll let you know honestly whether retrofit or full replacement is the better fit.