About Sash Windows Belfast

Lockable sash window furniture in Belfast
Lockable sash window furniture in Belfast
We specialise in supplying premium double-glazed timber sash windows across Belfast and surrounding areas. our focus is simple - replacing old, inefficient single-glazed sash windows with beautiful, authentic timber replacements that look traditional but perform to modern standards.

Why We Focus on Replacement, Not Quick Fixes

Many Belfast homes still have original single-glazed sash windows. While repairs, restoration and draught -proofing can help, they rarely solve the real issue - heat loss, condensation, rattling and poor energy performance.

Sash Windows Belfast believe the best long-term solution for most properties is properly designed double-glazed timber sash replacements. They retain character and style but deliver far better insulation, reduced noise, improved comfort and long-lasting performance.

Our approach is honest, practical and quality-driven. If a window can genuinely be saved, we'll say so. But where replacement gives a better long-term benefit, we explain why and do it properly.

Sash Windows Belfast

Proudly serving Belfast with premium timber sash window installations and refurbishments, focusing on heritage craftsmanship and minimalistic design.

Location

Belfast, Northern Ireland

Hours

Mon-Fri 9am-5pm

Triple sash window replacement Belfast
Triple sash window replacement Belfast

Traditional Craftsmanship with Modern performance

We combine heritage sash window style with modern manufacturing standards. Every sash window is made to measure, carefully fitted and finished with attention to detail.

You get :

  • authentic timber sash appearance

  • superior build quality

  • smooth operation

  • premium materials

  • modern, sympathetic finishes.

The result is a window that looks right for Belfasts architecture - while performing like a modern window should.

Local, Reliable and Professional

Based in Belfast, we take pride in professional workmanship, clear communication and respecting your home from start to finish. Most of our work comes through recommendation, repeat customers and word-of-mouth- something we're genuinely proud of.

We work on : Belfast terraces and townhouses : period and heritage-style homes : refurbishments and renovations : replacement upgrades

We cover :

Belfast : Lisburn : Holywood : Bangor : Newtownabbey : North Down : Surrounding areas

The craftsmanship of my new sash windows is exceptional; they truly enhance the feel of my home.

John M.

A quaint, historic building facade with exposed timber frames and brick walls. Above the windows, a sign reads 'Old Chesil Rectory Built: 1450'. Large windows are divided by mullions and framed by white curtains from the inside. Below the windows, seasonal decorations with greenery and pinecones are displayed alongside a potted conifer tree. There are two plant containers flanking either side of the decoration.
A quaint, historic building facade with exposed timber frames and brick walls. Above the windows, a sign reads 'Old Chesil Rectory Built: 1450'. Large windows are divided by mullions and framed by white curtains from the inside. Below the windows, seasonal decorations with greenery and pinecones are displayed alongside a potted conifer tree. There are two plant containers flanking either side of the decoration.
Traditional triple bay window replacement in Belfast
Traditional triple bay window replacement in Belfast

★★★★★