Ecoslide Sliding Sash Windows Best Timber Alternative
Bespoke uPVC Sash Windows
Design And Order Online
Looking for energy-efficient, low-maintenance sash windows that capture the charm of traditional timber? Our double glazed Ecoslide uPVC sash windows are made for Irish homes – beautifully engineered, fully bespoke, and delivered right to your door in Ireland.
- U‑Values from 1.4, upgradeable to as low as 1.2 W/m²K
- BS 6375‑1 Severe classifications
- BS EN 12150-2:2004 - Toughened glass
- PAS24 : 2022 - enhanced security
- ISO9001 - VHWG Quality management system
- BS-6375-1 - Performance
- BS-6375-3 - Security
- BS-7412:2007 & EN 14351-1:2006 - Windows made from hollow profile (extrusion )
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We are happy to help. Anytime.
Made To Measure For Irish Homes
Ecoslide uPVC Sash Windows
Prices starting from only €435 + VAT Available in a range of classic colours and woodgrain effects.
Our Victorian Sliders offer a seamless blend of traditional appeal and 21st-century efficiency. Each window is A+ energy rated as standard, thanks to thermally efficient, multi-chambered profiles and premium double glazing—making homes warmer and more cost-efficient to heat.
Key Features & Components (Certified to Industry Standards)
Ecoslide Vertical Sliding Sash Windows
Features & Components
Our uPVC Sash Windows are built with slim, authentic profiles and optional run-through sash horns, combining traditional craftsmanship with modern performance. Available in smooth white, a range of woodgrain foils such as Crystal White, Irish Oak, and Anthracite Grey, as well as dual colour options and bespoke RAL finishes, these windows are designed to complement every style of home.
Victorian Sliders
Tilt-In Design for Easy Cleaning & Lasting Security
Designed for convenience and longevity, Ecoslide sash windows come with tilt-in functionality, making them easy to clean from inside your home, and are engineered with practical safeguards such as toughened glass, travel restrictors, anti-jemmy security bar, and PAS24 or Document Q compliance options. Every window comes with a 10-year warranty, delivering peace of mind alongside style.
Eco Friendly Sliding Sash Windows
Why Do These Things Matter To You?
Ireland’s climate demands windows that are both authentic in look and effective in performance. Ecoslide delivers with features like superb thermal insulation, low maintenance, and secure design, all while preserving architectural character. Whether it’s a city centre Georgian renovation or a new build in Cork or Galway, these windows are designed to impress and endure—making them a perfect match for the Irish market.
Design And Order Your Ecoslide Sash Window Online
Visualise your perfect window – choose style, dimensions, colour, hardware and more with our easy-to-use online designer. See exactly how your bespoke sash windows will look before you order.
- Live product preview
- Choose features
- Instant visual changes
- Add to cart & order right away
Maintaining Tradition With
Modern Features
Balanced Spring Loaded Sashes
Glide smoothly and stay put at any position.
Tilt-in Easy Clean Facility
Allowing safe, hassle-free cleaning of external glass from inside.
Run-Through Sash Horns
Mimic the classic box-sash profile for that authentic period aesthetic.
Double Glazed Sealed Units
24 mm overall thickness with toughened glass top and bottom for insulation and safety.
Click to view image
Hardware Options
Choose traditional or convenient hardware to suit your style.
Note: Click to view image
Our Available
Hardware Colors
Select from a premium palette of finishes to complement your windows and Īrish home décor:
Chrome, Satin Chrome, Gold (antique), Black, White, Black Nickel and Rose Gold.
All available across pole eyes, sash lifts, locks, travel restrictors and tilt knobs.
Available Options For
Colours And Finishes
Every home is different — and so are your design preferences. That’s why our Ecoslide uPVC Sash Windows are available in a wide range of colours and woodgrain finishes to perfectly complement both modern and traditional homes.
Our standard windows come in a solid White finish, but you also have the option to mix things up with dual-colour combinations — for example, keeping a clean white interior while choosing a rich woodgrain colour for the external face. This offers the best of both worlds: timeless style inside, and kerb appeal outside.
And for those seeking something truly unique, we also offer bespoke RAL colour. Whether you want your windows to match your front door, garage, or a brand’s colour scheme — we can create a bespoke finish tailored exactly to your taste.
Obscured Glass Designs
to view all designs please checkout our glazing options using button on right.
Available Options For
Glazing
Our ECOSlide windows come standard with high-performance, toughened double glazed units boasting an A+- energy rating—meaning they deliver both thermal efficiency and reliable security from day one.
For properties requiring something extra, we also offer:
- Acoustic glass—boost noise reduction to create a quieter, more peaceful home.
- Laminated glass—provides enhanced safety and security features for ultimate peace of mind.
- Wide range of obscured (privacy) glass designs.
Georgian & Astragal Bars
ECOSlide® Configurations
At Colin’s Sash Windows, we’re proud to offer ECOSlide® uPVC sash windows, tailored exactly to your home’s heritage style. Whether you’re replacing original sash windows or creating a new look, our configurations include traditional choices such as bay windows (including splay and box bay designs), ensuring a seamless match to your home’s character and charm.
Choose between Astragal or Georgian Glazing Bars
To replicate the elegance of period-style sash windows, select from two distinct glazing bar styles:
Astragal Bars – These decorative bars are mounted on the surface of the glass, giving the appearance of multiple separate panes while maintaining modern, energy-efficient glazing.
Georgian Bars – These are placed internally, between the glass panes, to deliver a slim, period-authentic look—perfect for enhancing heritage aesthetics without compromising performance.
Together, these options ensure your uPVC sash windows not only meet modern standards but also honor traditional design, making them particularly suitable for Irish homes in conservation zones and historic settings.
Performance Values
Our ECOSlide® uPVC sash windows are rigorously tested and certified to meet the highest performance standards required in Ireland, ensuring long-term reliability and efficiency.
Weather
Weather performance is independently tested for resistance to wind, water, and air infiltration in line with BS 6375-1, making them ideal for Ireland’s changing climate.
Durability
Long-term durability is proven through cyclic testing in accordance with BS 6375-2, guaranteeing years of smooth and reliable operation.
Security
Enhanced security features are available, meeting PAS 24:2022 and BS 6375-3 standards, with optional upgrades for Document Q compliance.
Efficiency
Toughened and insulated glass units are certified under BS EN 12150-2:2004 and BS EN 1279-6:2018, providing excellent thermal efficiency, safety, and noise reduction.
Available
Security Options
Our Best Selling
ECOSlide® Sliding Sash Windows
Check our trending products for replacement sash windows, we have the range of woodgrain effect and smooth RAL colours uPVC sash windows. You can select from the following and customise it according to your requirements.
Design And Order Your Ecoslide Sash Window Online
Visualise your perfect window – choose style, dimensions, colour, hardware and more with our easy-to-use online designer. See exactly how your bespoke sash windows will look before you order.
- Live product preview
- Choose features
- Instant visual changes
- Add to cart & order right away
Our Gallery
Get Inspried
We’ve supplied our uPVC sash windows to homes and real estate developers across Ireland. See our gallery to explore recent deliveries, finishes and real installations from our happy trade customers.
Downloads
Want to explore all the details before making a decision? Download our Ecoslide uPVC Sash Windows brochure to see everything we offer in one beautifully presented guide.
Why Choose
Colin’s Sash Windows
Specialist in Sash Windows Only
Delivered Nationwide Across Ireland
Trade Prices Without Compromise
Bespoke Designs, Built to Last
Benefits of
Our ECOSlide® Sash Windows
Low Maintenance
Our Ecoslide UPVC sash windows are designed to stay looking great with minimal upkeep — no painting or sanding required.
Energy Efficiency
All sash windows are double glazed for excellent thermal insulation, helping reduce heat loss and energy bills year-round.
Security
Each window is built with robust locking mechanisms and optional security upgrades for added peace of mind.
Noise Reduction
Double glazing and tight seals help keep outside noise where it belongs — outside.
Bespoke Options
Every window is made to measure, with your choice of colour, glazing bars, sash horns, and hardware finishes.
Usability
Smooth sliding operation and tilt-to-clean functionality make these windows easy to operate and maintain.
Authenticity
Timeless period detailing, including run-through horns and slim profiles, preserve the traditional sash window look.
Sustainability
Our timber sash windows use responsibly sourced materials, and all units are built to last — reducing waste and replacements.
Frequently Asked Questions
No, we do not offer installation. We are a supply-only business and deliver uPVC sash windows across Ireland. You can arrange installation with your preferred local contractor or installer.
Our double glazed uPVC sash windows start from €435. The final price depends on your chosen size, style, glazing, hardware, and finish. You can use our online window designer to create your perfect window and receive an instant quote.
Absolutely! We offer an easy-to-use online sash window designer where you can build your window to exact specifications, select your preferred colours, finishes, and hardware, and place your order online.
We deliver nationwide across Ireland, including both urban and rural areas. All products are carefully transported and delivered directly to your address.
Yes, all our sash windows are double glazed for energy efficiency and meet excellent thermal performance standards. They help keep your home warmer in winter and cooler in summer, which can also reduce your energy bills.
Yes, our Ecoslide sash windows come with a comprehensive manufacturer’s guarantee for your peace of mind. Full details are available in the product brochure.
Yes, while our standard sash windows come in solid white, we offer a wide range of woodgrain effects and RAL colours for a truly bespoke finish. You can even have a white internal finish with a different external foil colour.
Delivery times may vary based on your specifications, but most orders are delivered within 3–4 weeks. We’ll provide a more accurate timeframe once your order is confirmed.
No we don't offer triple glazing. There is only 24mm of space and 3 panes of glass is too heavy for the springs in sash windows
