About Us
Harpenden Windows, a trusted name in double glazing across Hertfordshire and beyond, has proudly served the community for over 40 years. As a family-run business, we take pride in offering exceptional quality uPVC and aluminium double glazing windows and doors, alongside unmatched customer service that sets us apart.
Our unwavering commitment to trust, professionalism, quality, and ethical trading has enabled us to establish ourselves as one of the leading local manufacturers and installers in the area. We have consistently met the high expectations of thousands of satisfied customers in Harpenden and beyond.
What We Do
Harpenden Windows offers a comprehensive range of high-quality uPVC and aluminium double glazing products, catering to every need and aesthetic. Our extensive selection includes:
- Windows: Flush casement windows, Residence Collection Flush Casement Windows, bi-fold doors, lantern roofs, and more.
- Doors: Flush casement doors, Residence Collection Flush Casement Doors, Reynaers patio doors, Ultra Slimline sliding doors, and bi-fold doors.
Each product is meticulously crafted with meticulous attention to detail and comes with comprehensive guarantees for your peace of mind. We also prioritize energy efficiency, ensuring that your new windows and doors maximise thermal insulation and reduce your energy bills.
Why Choose Harpenden Windows?
- 40 years of successful trading.
- Family-run local business.
- FENSA Registered.
- No pressure sales approach.
- Manufactured by industry experts in Harpenden.
- Free no-obligation quotation and advice service.
- Highly experienced fitting teams.
- Comprehensive product guarantees.
- Wide range of products to choose from.

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