Double-Glazed Timber Sash Windows in Belfast

Belfast's Specialists in Replacement Timber Sash Windows

Sash Windows Belfast have been crafting premium timber sash windows in Belfast with a focus on heritage detail and modern craftsmanship for over 20 years. Our attention to detail puts us a step above the rest. If you are thinking of upgrading or replacing your sash windows we can offer free advise and quotations.

We specialise exclusively in replacement double glazed timber sash windows, providing a long-term solution for Belfast homes with old, inefficient single glazed sash windows.

Rather than temporary fixes, our focus is on properly designed timber sash replacements that dramatically improve warmth, comfort and performance — while preserving the original style of your home.

Replacement Double-Glazed Timber Sash Windows

Why Replace Old Single-Glazed Sash Windows?

Many traditional sash windows in Belfast homes suffer from poor insulation due to single glazing. While repairs and draught proofing can help short-term, they often fail to solve the real issue — heat loss through glass.

Replacing old sash windows with double glazed timber sash frames offers:

• Significantly better thermal performance

• Reduced condensation

• Improved comfort year-round

• A cleaner, long-term solution

We provide honest advice and recommend replacement where it genuinely offers the best outcome.

Our sash windows are purpose-made to match traditional proportions while incorporating modern double glazing for improved insulation and noise reduction.

Key benefits:

• Made-to-measure timber sash frames

• Double glazed for improved energy efficiency

• Smooth, balanced operation

• Designed to suit period and heritage-style properties

• A lasting solution for cold, draughty homes

Traditional Appearance, Modern Performance

We combine traditional sash window design with modern build standards. Every window is carefully designed to suit the character of your property while delivering the comfort expected from a modern home.

You can expect:

• Quality timber materials

• Careful fitting and finishing

• Attention to detail

• Respect for your home

In some cases, sash windows can be repaired or restored. Where this makes sense, we’ll tell you. Where replacement is the better long-term solution, we’ll explain why.

Our priority is doing what’s right for the property — not pushing short-term fixes.

Areas We Cover

We supply and install replacement timber sash windows across:

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

Get a Quote for Replacement Sash Windows in Belfast

If you’re considering replacing old sash windows with high-quality double glazed timber alternatives, get in touch for expert advice and a no-obligation quote.

Honest Advice on Existing Sash Windows

Explore our stunning sash windows