Should I replace wooden windows with uPVC?

Replace wooden windows with uPVC only when the frames are beyond economic repair and your property has no planning restrictions. Sound timber can usually be repaired, draught-proofed or reglazed for less disruption. In a listed building or Article 4 conservation area, uPVC is often not allowed without consent.

When is replacement the right call?

• Rot has spread through frames, not just cills or paint surfaces.
• Joints have failed and the frames no longer close tightly.
• The glazing has failed and repair costs outweigh new frames.
• The windows are single glazed and you want a Part L compliant upgrade.

Do you need permission to swap timber for uPVC?

Listed buildings need listed building consent for any change that alters their character. Unlisted homes in a conservation area may lose permitted development rights if an Article 4 direction applies. Ask your council before ordering.

What standard must new windows meet?

Replacement windows in England need a U-value of 1.4 W/m²K or a Window Energy Rating of Band B, and the installer must self-certify through a scheme such as Certass.

Are there alternatives to uPVC?

Yes: new double-glazed timber windows keep the original appearance. Jake surveys each property himself and will tell you whether repair or replacement is the better route. Details on our timber windows.

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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