Sash Window Restoration & Painting in Islington N1

Original timber sash windows are one of the defining characteristics of Islington N1's period properties. Whether you own a Georgian townhouse on Duncan Terrace or a Victorian terrace on Thornhill Road, these windows are heritage assets worth preserving through professional restoration and painting.

Why Restore Rather Than Replace?

In Islington's conservation areas — which cover most of N1's period housing — replacing original sash windows with modern alternatives often requires planning permission and is frequently refused. But restoration makes sense regardless of planning rules: original windows were built from old-growth timber that is far more durable than modern softwood, and a properly restored sash window will outperform a cheap replacement in terms of longevity and thermal performance.

The Restoration Process

Our N1 sash window team works through a methodical process: easing painted-shut sashes, removing sashes where necessary, stripping excessive paint build-up, repairing timber with specialist epoxy systems, replacing cracked and missing putty, renewing broken sash cords, installing brush-pile draught-proofing, and repainting to a flawless finish. Properties on Milner Square, Gibson Square, and Arundel Square have all had their windows restored by our team.

Paint Systems for Longevity

We finish N1 sash windows with two coats of Dulux Trade Weathershield Satin over a specialist wood primer and undercoat. This three-coat system provides excellent weather resistance, UV stability, and the flexibility to accommodate seasonal timber movement without cracking. The result is windows that function beautifully and look perfect for years.

Sash window restoration in Islington N1. Call 020 3874 2670 for a free window condition survey.