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Sliding Sash Windows
Period Style, Modern Performance

Preserve the character of your period home without sacrificing modern comfort. Our sliding sash windows replicate the authentic vertical-sliding movement of original Georgian and Victorian windows.

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Sliding sash windows installed in Dublin by WOW Windows
Period Authentic
Sliding Sash Windows

Preserve Your Home's Character, Without Compromise

Dublin's Victorian and Georgian terraces deserve windows that honour their heritage. Our sliding sash windows faithfully reproduce the vertical sliding mechanism of the originals, with the same elegant proportions and glazing bar details but with modern double glazing, draught-free seals, and A++ energy performance.

They're the perfect choice for protected structures, period homes, and conservation areas where planning guidelines require traditional window styles.

  • Authentic vertical sliding action, spring-balanced or spiral-balanced
  • Slim sightlines and traditional glazing bar options
  • Available in PVC and timber-look foiled finishes
  • Double or triple glazing with warm-edge spacer bars
  • Easy-clean tilt function on both sashes
  • Draught-free brushpile seals throughout
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Why Sliding Sash

Heritage Looks,
Contemporary Standards

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Authentic Period Character

Our sash windows replicate the proportions, glazing bar profiles, and sliding action of Victorian and Georgian originals, preserving the soul of your home.

🌡️

Modern Thermal Performance

Despite their traditional appearance, our sash windows achieve A++ energy ratings with argon-filled double glazing and warm-edge spacer technology.

💨

Draught-Free Sealing

Original sash windows are notorious for draughts. Ours use modern brushpile seals throughout that completely eliminate cold air infiltration.

🧹

Easy-Clean Tilt

Both the upper and lower sashes tilt inwards for easy cleaning from inside. No ladders required, even on upper floors.

🔒

Secure Locking

Dual locking mechanisms on the meeting rail plus anti-lift blocks ensure your sash windows are every bit as secure as modern casements.

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Made to Your Exact Opening

Every sash window is manufactured to the precise dimensions of your existing opening. No hacking out required in most cases.

Customer Reviews

What Our Customers Say

"Our Victorian terrace had the original single-glazed sash windows which were letting in draughts and losing heat constantly. WOW replaced them all and we couldn't believe the difference. They look identical to the originals but the house is completely transformed."

★★★★★
Patrick & Sinead Brennan
Ranelagh, Dublin 6
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★★★★★

Planning required us to retain sash windows on the front elevation. WOW found us a solution that satisfied the council and performs brilliantly. Highly recommend.

Aisling C.
Portobello, Dublin 8
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★★★★★

The sash windows look stunning and the draught problem we had for 20 years is completely gone. Brilliant product and the team were professional and efficient.

Tom & Mary H.
Glasnevin, Dublin 9
Sash Window FAQs

Questions About
Sliding Sash Windows

Still have questions? Give us a call anytime.

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Will PVC sash windows look authentic on a period home?

Yes. Modern sash windows use slim profiles and traditional glazing bar options that very closely replicate the original look. Many of our customers report that neighbours can't tell the difference.

Are they suitable for conservation areas or protected structures?

We work with planning guidelines regularly. In many cases our sash windows satisfy conservation requirements. We'll advise at your survey and can liaise with your local authority if needed.

Do sliding sash windows have security locks?

Yes. All our sash windows are fitted with dual meeting-rail locks and anti-lift devices as standard, making them as secure as any modern casement window.

Can I open both the upper and lower sashes?

Yes. Both sashes slide vertically, allowing you to ventilate from the top, the bottom, or both simultaneously, just as with the original timber windows.

Ready When You Are

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Sash Window Survey Today

Free survey. No-obligation quote. Same-week visits available across Dublin and surrounding counties.

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Or call us: 085 765 4321
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