Why Choose Sash Windows?

Sash windows combine the charm of traditional vertical sliders with modern energy-efficient uPVC profiles. Their adjustable openings provide the benefits of both form and function, offering heritage aesthetics with everyday practicality and long-lasting durability.

Authentic Period Styling

Our range of sash windows features traditional period-style detailing, such as mock-sash and Georgian bars that complement any design style. Enjoy the authentic beauty of timber with the low-maintenance durability of modern uPVC frames.

Low-Maintenance & Weather-Resistant

Made from premium-grade uPVC, our sash windows won’t warp, fade, crack or rot when exposed to changing weather conditions. Perfect for Glasgow’s unpredictable wet and windy climate, they’re easy to clean and won’t need repainting, resealing or refinishing.

Excellent Energy & Thermal Performance

With options for double and triple-glazing, low U-value sash windows provide excellent insulation. By retaining heat and preventing draughts, these A-rated units enhance thermal performance, reduce energy consumption, and lower heating costs.

Enhanced Security & Strength

Our sash windows feature advanced multi-point locking systems and internal glazing beads for added security against forced entry. Their reinforced frames provide an extra layer of support and protection from Scotland’s windy weather conditions.

Smooth & Quiet Operation

Precision-engineered hardware ensures quiet and smooth operation. No squeaky windows and no need for constant re-oiling. Optional acoustic glazing provides enhanced acoustic performance by reducing outside noise for a quieter, more peaceful home.

Bespoke Design Options

Choose from a wide range of colours, finishes and glazing options to suit your home. Whether you need frosted glass panels for more privacy or custom sizes for your heritage home, we’ve got you covered. We can create a bespoke look that perfectly complements your property.

Design the perfect sash windows for your traditional or modern property. Get in touch with us today.

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Born in Germany · Made in Glasgow

⭐⭐⭐⭐⭐ 5 Star Reviews across Google, Which?, Yell & Facebook.

RePlace Windows: Trusted Sash Window Suppliers

RePlace Windows has been a trusted door and window supplier in Glasgow since 2014. We provide professional, personalised supply and installation services for clients in Glasgow and across Central Scotland.

Here’s why homeowners across Glasgow trust RePlace Windows for their window and door installations:

⭐⭐⭐⭐⭐ across 5 review platforms

We supply and install premium German-engineered uPVC windows known for their exceptional strength and precision craftsmanship. Each frame is built with advanced technology for smooth operation, enhanced insulation and long-lasting performance. You get consistent thermal and energy performance year-round.

RePlace Windows has earned a stellar reputation as a trusted local door and window supplier in Glasgow. With years of experience and exceptional service, we’ve developed lasting and meaningful relationships with Glasgow homeowners. We understand their needs and develop personalised solutions that perform well in every season.

We offer a comprehensive 10-year guarantee on all our doors and windows. This guarantee covers doors, frames, double and triple glazing, all moving parts, sealants and internal work. You get a decade of aftercare from the day of installation to the last day of your tenth year.

Every quotation clearly outlines the value and the quality of our products and services. As part of our commitment to honest, upfront pricing, we provide the cost of all materials and labour.

You don’t pay any upfront fees. We are confident in the quality of our products and services. You only pay once you’re satisfied with the results.

We conduct a free heat loss survey to determine your insulation needs. This helps us ensure your new doors and windows provide optimal energy and thermal performance.

We supply and install uPVC doors and windows to the highest industry standards for precision, performance and durability. Our Rehau partnership ensures we deliver long-lasting performance and quality in all our products.

RePlace Windows is a Google Guaranteed business with hundreds of 5-star reviews across Facebook, Google, Yell and Which?. Our customers trust us to deliver premium doors and windows with exceptional customer service.

Our Process

  • Get in Touch
  • We carry out a home technical survey
  • Our team manufactures your custom doors and windows to your specifications
  • We install your windows and doors
  • We provide aftercare as outlined in our 10-year guarantee

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Flexible Finance Options

You can spread the cost of your new uPVC doors and windows with our flexible finance options. With loans from as little as £1000 at 11.9% APR and 3-10 years repayment terms, it’s even easier to get new windows and doors installed with RePlace Windows.

Frequently Asked Questions

Installation time depends on the size of your windows and the project complexity. We usually complete sash window installation within one to two days, but this can vary depending on scheduling and weather conditions.

We work quickly and efficiently to ensure quality installations with minimal disruption to your home.

High-quality uPVC sash windows can last up to 25-30 years without warping, fading, cracking or rotting. To ensure your windows stay looking their best, regularly check locks and seals for any cracks, leaks or trapped moisture.

With the proper care and maintenance, your sash windows will stay looking their best for years to come.

In most cases, you won’t need planning permission to replace your windows with sash windows. Heritage homes in conservation areas or listed buildings may require approval from the relevant local authorities.

It’s a good idea to check with your local planning authority to ensure your new windows are compliant with local regulations.

Have more questions? Our team can answer them.

Talk to an installer

Visit our Showroom

31 Fairfield Place, East Kilbride, G74 5LP

Freephone

0808 5000 111

Glasgow 0141 2000 444

Case Studies

Explore our case studies to discover our door and window transformations for properties in Glasgow and across the UK.

Other Products & Services

Looking for more? RePlace Windows also supplies and installs Casement Windows, Tilt & Turn Windows, Bay Windows and Coloured Windows in a variety of colours, styles and designs.