Sliding Sash Windows
Premium uPVC sliding sash windows from Budget Designer HomeWorks combine the timeless elegance of classic Georgian design with the strength, efficiency, and reliability of modern engineering.
Ideal for period townhouses, heritage properties, and new builds that need character, each window is made to measure and designed to replicate traditional timber aesthetics without the maintenance.
We supply and install sliding sash windows across Belfast, Bangor, Newtownards, Lisburn, and throughout Northern Ireland, delivering expertly fitted systems built to perform beautifully for decades.
Why Choose uPVC Sliding Sash Windows By Budget Designer HomeWorks?
High Security:
Reinforced frames, multipoint locking systems and toughened glazing provide an added layer of protection, giving you complete peace of mind without compromising on style.Thermal Efficiency:
Engineered for Northern Ireland conditions, our sash windows combine advanced multichambered uPVC profiles and high performance glazing to deliver lasting warmth, comfort, and energy efficiency.Premium Woodgrain & Colour Finishes:
Achieve the look of traditional timber without the upkeep. Our sliding sash windows are available in a range of realistic woodgrain foils and smooth finishes, with classic whites, heritage colours, and dual colour options to suit your home inside and out.Advanced Glazing Options:
We offer a range of high performance glazing to suit your home and location. Choose from double or triple glazing, with Argon gas filled units as standard or upgrade to Krypton gas for enhanced insulation. Specialist glazing options are also available, including UV protective, acoustic, and enhanced security glass.Smooth Operation & Lasting Performance:
Modern precision balances allow both sashes to glide effortlessly, making opening and closing simple and reliable. Unlike traditional timber systems, our uPVC sash windows are engineered to eliminate rattling, sticking, and ongoing maintenance issues.Custom Hardware & Finishing Touches:
Choose from a range of hardware to suit your style, from traditional to modern or art deco to industrial. Every component is selected for durability and long term performance.
Engineered for Northern Ireland Conditions
Our sliding sash windows are designed to perform in the real conditions we see every day across Northern Ireland.
From coastal exposure in Donaghadee and Portaferry to colder inland areas, every system is engineered to resist the elements while maintaining comfort, efficiency, and long term reliability.
- Advanced Weather Sealing: Multiple sealing points work together to reduce draughts, prevent moisture ingress, and maintain a consistent indoor temperature.
- Stable, Reinforced Frames: Internally reinforced profiles provide strength and rigidity, ensuring the windows remain aligned and operate smoothly over time.
- Reliable Year Round Performance: Designed to handle wind, rain, and temperature changes without compromising on efficiency or usability.
Engineered for Security & Strength
Security is built into every element of our sliding sash windows, giving you confidence without affecting ease of use or appearance.
Each system is designed to meet modern expectations for home security while maintaining smooth, everyday functionality with a multi-use tilt and turn design.
- Security is built into every element of our sliding sash windows, giving you confidence without affecting ease of use or appearance. Each system is designed to meet modern expectations for home security while maintaining smooth, everyday functionality with a multi-use tilt and turn design.
- Multi Point Locking Systems: High strength locking mechanisms secure the sash firmly in place, helping to resist forced entry.
- Reinforced Construction: Frames and hardware are built for durability, providing long term strength and stability.
- Secure Ventilation Options: Windows can be safely opened in multiple ways for airflow while maintaining a level of security within the home.
Designed to Last & Look the Part
Our sliding sash windows are built to retain their appearance and performance for decades, combining traditional styling with modern durability.
Every detail is considered, from proportions and finishes to the way the window feels in everyday use.
- Authentic Sash Detailing: Features such as deep bottom rails and astragal bars recreate the proportions of traditional timber windows.
- Consistent, Long Lasting Finish: High quality foils and finishes resist fading, peeling, and wear over time.
- Minimal Maintenance Required: No sanding, painting, or ongoing upkeep, just a simple, durable solution that continues to perform year after year.
Professional Installation & Aftercare
At Budget Designer HomeWorks, you’ll never face a hard sell. Our team provides honest expert guidance to help you choose what works best for your home and lifestyle. Whether you are restoring a heritage property or building something new, we’ll make sure your investment is the right one.
We manage every stage of your project, from your initial free home design appointment through to installation and long term support.
Our experienced team ensures your windows are fitted correctly, perform as expected, and continue to do so for years to come.
- Expert Installation Team: Careful, precise fitting with minimal disruption to your home.
- Ten Year Comprehensive Warranty: Full cover on both product and workmanship for complete peace of mind.
- Ongoing Support: Our team is always available for advice, servicing, and aftercare whenever needed.
- Trade supply is also available for professional installers: Every product is made to your measurements and delivered directly to site, ready to fit.
Completed Projects
EASY 4 STEP PROCESS
How It Works
Get in Touch
Free Survey and Quote
Manufacture and Installation
Ongoing Support
Hear from Our Satisfied Customers
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CONTACT US
Ready to Upgrade? Let’s Get Started
If you have a question related to Sliding Sash Windows that we haven’t covered here, call and speak with our knowledgeable team. We are on hand to guide you with all aspects of the design, build or installation of your home improvement project.
165 Clandeboye Rd, Bangor BT20 3JP, Northern Ireland.
+44 28 9145 3700
sales@budgetni.com
Questions About The Service
FREQUENTLY ASKED QUESTIONS
No. They replicate the look of timber using high-quality uPVC with a foiled woodgrain effect, which is more durable, energy efficient and low maintenance.
Yes. Both the upper and lower sashes slide smoothly for ventilation and can tilt inwards for cleaning.
Yes. Our uPVC sash windows have multi-chambered frames for ultimate thermal efficiency. The A-rated frames will be coupled with double or triple glazing and a choice of Argon or Krypton gas for superior insulation.
Absolutely. Our sliding sash windows use Bear Grip Hook locks which exceed British Standard security levels.
Yes. Our sliding sash windows can be finished in any colour, with choices including classic white, foiled woodgrain oak, black, anthracite and custom colours, or dual colour finishes to suit your home.
Yes. Visit our showroom to view an example of our functional triple glazed sash window on display with Krypton gas and astragal bar detailing.
Yes. We can provide uPVC casement windows with run through sash horns. This will replicate the style of sliding sash windows but make the windows more affordable for discerning homeowners.Â