Business Details
37 Years
experience
Trusted Windows and Doors in Watford
Established in 1989, Harp Windows is a family-run business with decades of experience in manufacturing and installing high-quality replacement windows, doors, and conservatories. Our reputation is built on professional integrity, efficient customer service, and a commitment to delivering value for money. We are proud to be endorsed by Which? as a Trusted Trader and hold memberships with FENSA, The Consumer Protection Association, and Checkatrade. Our comprehensive aftersales service ensures complete peace of mind, including a 10-year product guarantee backed by insurance. Based in Watford, we serve Hertfordshire, Buckinghamshire, Middlesex, and North London, offering customers the opportunity to visit our showroom or factory to see our products firsthand.Our team prioritises transparency, no hard-selling tactics, and tailored advice to meet individual needs. With over 250 verified reviews, our track record of customer satisfaction speaks for itself. We operate in compliance with GDPR standards, ensuring the security and privacy of all client data. Our dedication to quality craftsmanship and customer-centric service has made us a trusted name in home improvements for over three decades.
Services
Windows
Doors
Conservatories
Bi-Folding Doors
Sliding Doors
Details
- Year established: 1989
Highlights and features
- We are a Which? Trusted Trader with over 250 verified reviews.
- Our products come with a 10-year guarantee backed by insurance.
- We are FENSA registered (Company No. 10912) for compliance and quality.
- Local expertise serving Watford, St Albans, Harrow, and surrounding areas.
- Comprehensive aftersales service with rapid response times for repairs.
Associations and certifications
- Which?
- FENSA
- The Consumer Protection Association
- Checkatrade
What people say
Fantastic service
Excellent service
Highly recommend
Quality window
No fuss
Services
Windows
We offer a range of high-quality replacement windows, including casement, sash, and timber-alternative designs. Our products combine energy efficiency, durability, and aesthetic appeal. Each installation is completed by skilled professionals to ensure optimal performance and customer satisfaction.
Doors
Our door solutions include composite, bi-folding, and sliding options designed for security, insulation, and style. Expert fitting ensures seamless integration with your home, enhancing both functionality and curb appeal with minimal disruption.
Conservatories
We design and install conservatories that extend living spaces with natural light and modern aesthetics. Using premium materials, our conservatories provide year-round comfort and are tailored to meet individual architectural and lifestyle needs.
Bi-Folding Doors
Our bi-folding doors create seamless transitions between indoor and outdoor spaces. Engineered for smooth operation and thermal efficiency, they are ideal for modernising homes while maintaining security and design flexibility.
Sliding Doors
We provide premium sliding doors that blend contemporary design with practical functionality. These doors offer enhanced insulation, space-saving operation, and sleek aesthetics to modernise any property.
Questions
What areas do you serve?
We install windows, doors, and conservatories in Watford, St Albans, Harrow, Pinner, Northwood, and across Hertfordshire, Buckinghamshire, Middlesex, and North London.
Are your products guaranteed?
Yes, all our products come with a 10-year guarantee backed by insurance for complete peace of mind.
How can I request a quote?
Call us on 01923 231 111 or use our online Quick Quote service for a free, no-obligation estimate.
Are you FENSA registered?
Yes, we are a FENSA registered company (Registration No. 10912) for compliance and quality assurance.
Do you offer after-sales support?
We provide a comprehensive aftersales service, including rapid response repairs and dedicated customer assistance.
Can I visit your showroom?
Yes, our Watford showroom is open Monday to Friday 10am–3pm and Saturday 10am–2:30pm by appointment.
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