Business Details
Premium Windows & Doors in Harpenden
Harpenden Windows has been a trusted name in the double glazing industry for over four decades, serving Hertfordshire and surrounding areas. As a family-run business, we specialise in manufacturing and installing high-quality uPVC and aluminium windows, doors, and roofline products. Our reputation is built on a commitment to excellence, with a focus on product quality, customer service, and value for money. We are proud to be FENSA Registered, ensuring compliance with industry standards and customer satisfaction. Our products are CE-marked, reflecting adherence to European technical norms and legal requirements.With over 90% of our work coming from recommendations, we prioritise customer-centric solutions, offering free no-obligation quotations and bespoke designs tailored to individual needs. Our expert team of fitters ensures seamless installations, backed by comprehensive product guarantees. All products are custom-made at our Harpenden factory, combining traditional craftsmanship with modern technology to deliver energy-efficient, secure, and aesthetically pleasing solutions for residential and commercial properties.
Services
Bi-Fold Doors
Flush Casement Windows
uPVC Doors
Aluminium Patio Doors
Lantern Roofs
Residence Collection
Composite Doors
Sash Windows
Panel Doors
French Doors
Highlights and features
- We have over 40 years of experience in the double glazing industry.
- Our team consists of certified experts with extensive experience.
- We are FENSA Registered for quality and compliance assurance.
- We provide free no-obligation quotations and tailored solutions.
- Our products are covered by comprehensive guarantees.
Associations and certifications
- FENSA
Services
Bi-Fold Doors
Our bi-fold doors seamlessly connect indoor and outdoor spaces with slim sightlines and high thermal efficiency. Crafted from durable aluminium, they feature multi-point locking systems for security and are available in custom colours and configurations. Ideal for modern and traditional properties, these doors offer effortless operation and low maintenance, enhancing natural light and aesthetic appeal while providing exceptional insulation and weatherproofing.
Flush Casement Windows
Flush casement windows replicate traditional timber aesthetics with modern uPVC durability. Designed for period properties, they include multipoint locks, night vents, and A+ energy ratings. Customisable with decorative glass and hardware, these windows ensure thermal efficiency, security, and minimal upkeep, blending heritage charm with contemporary performance for long-term value.
Aluminium Patio Doors
Aluminium patio doors combine sleek design with robust security, featuring slim profiles and Secured by Design accreditation. They offer double or triple glazing for U-values as low as 1.1W/mK, low thresholds for accessibility, and a range of finishes. These doors enhance energy efficiency, durability, and visual appeal, providing seamless indoor-outdoor living spaces with minimal maintenance.
Lantern Roofs
Lantern roofs flood interiors with natural light using durable, energy-efficient glazing. Custom-made for flat roofs, they feature advanced double glazing, acoustic insulation, and a wide colour selection. These low-maintenance solutions enhance architectural appeal, add property value, and provide thermal comfort, ideal for modernising kitchens, conservatories, or extensions.
Residence Collection
The Residence Collection offers premium flush casement windows and doors with timber-like aesthetics and uPVC benefits. Designed for heritage properties, they include A++ energy ratings, multi-chambered profiles, and luxury finishes. These products deliver superior thermal efficiency, security, and durability, requiring no painting or sanding, ensuring long-term performance and enhanced property value.
Questions
What areas do you serve?
We serve Harpenden, Hertfordshire, Watford, and surrounding areas with local expertise and tailored solutions.
Are your products energy efficient?
Yes, all our windows and doors meet A+ energy ratings, with U-values as low as 1.1W/m²K for optimal thermal efficiency.
Do you offer guarantees?
Yes, we provide comprehensive guarantees on all products and installations for long-term peace of mind.
Are you FENSA Registered?
Yes, we are FENSA Registered, ensuring compliance with building regulations and industry standards.
Can I customise my windows and doors?
Yes, all products are bespoke-made with options for colours, finishes, hardware, and glazing to suit your preferences.
Do you provide free quotations?
Yes, we offer free, no-obligation quotations with expert advice tailored to your project requirements.
