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Business Details
23 Years
experience
Expert Window & Door Solutions in Hatch End
Established in 2003, Harrow Windows has built a reputation for excellence in crafting bespoke conservatories, windows, and doors. Our founder, Colin Walklate, brings over three decades of industry expertise, having transitioned from manufacturing sealed units to leading a customer-focused business. As CERTASS-registered professionals and Checkatrade members since 2013, we prioritise quality, transparency, and tailored solutions for both domestic and commercial projects.

Our team specialises in Conservation Areas, offering premium materials from trusted brands like Aluk, Rehau, and Bereco. With a commitment to minimising client disruption, we oversee every project from design to completion, ensuring seamless installations and long-term satisfaction. Our work in Pinnerwood Park and surrounding regions reflects our dedication to blending traditional aesthetics with modern efficiency, supported by a 100% customer satisfaction guarantee.
Services
Conservatories Replacement Windows Doors Commercial Glazing Roof Lanterns
Details
  • Year established: 2003
Highlights and features
  • Over 20 years of experience in window and door installations
  • CERTASS registered for quality assurance
  • Personalised service with direct access to the owner
  • Specialists in Conservation Areas with local expertise
  • 100% commitment to customer satisfaction
Associations and certifications
  • CERTASS
What people say
Very pleased with new bifold door Professional team completed work to a high standard Direct access to owner for project discussions Recommended to family and friends
Services
Conservatories
We design and install bespoke conservatories, from classic lean-to styles to modern kitchen extensions. Our projects include full planning, building, and finishing, with options like bifold doors and smart-glass roofs. Each structure is tailored to complement your home's architecture while ensuring thermal efficiency and year-round usability.
Replacement Windows
Our uPVC, timber, and aluminium windows combine traditional aesthetics with modern security and insulation. Available in woodgrain or custom colours, they retain period property charm while meeting contemporary energy standards. Brands include Kmmmerling, Rehau, and Bereco for durable, low-maintenance solutions.
Doors
We supply and install composite, timber, uPVC, and aluminium doors with advanced security features. Options include bifolds, French doors, and sliding systems from Smarts and Rehau. Designs prioritise thermal efficiency, durability, and visual appeal, with custom finishes to match your property's style.
Commercial Glazing
Our commercial services cover mirrored walls, luxury car showroom glazing, and entrance systems. Using aluminium and glass, we create sleek, secure spaces that enhance business environments. Projects benefit from the same attention to detail and premium materials as our residential work.
Roof Lanterns
Upgrade existing conservatories with skypod roof lanterns or warm roofs for improved light and insulation. Our solutions feature self-cleaning, solar-control glass to reduce glare and heat loss. These installations transform outdated spaces into bright, ambient areas suitable for all seasons.
People
Colin Walklate
Owner & Director
Colin founded Harrow Windows in 2003 after 16 years in double glazing manufacturing. He oversees all projects, ensuring quality and client satisfaction. His hands-on approach and industry knowledge guarantee direct, expert communication for every customer.
Questions
What services does Harrow Windows offer?
We specialise in conservatories, replacement windows, doors, commercial glazing, and roof upgrades. All projects include design, planning, and installation using premium materials from trusted brands.
Do you work outside Hatch End?
We cover Middlesex, Hertfordshire, Buckinghamshire, Berkshire, and London. For large projects, we may travel further—contact us to confirm your area.
Are your installations energy efficient?
All windows and doors meet at least an A energy rating, with options like smart-glass roofs and warm roofs for conservatories to ensure year-round thermal efficiency.
How do you ensure customer satisfaction?
Colin personally oversees every project, providing direct communication and a 100% satisfaction guarantee. We also offer warranties and clear, upfront pricing with no hidden fees.
What accreditations do you hold?
We are CERTASS registered and have been members of Checkatrade since 2013, adhering to strict quality and service standards for customer protection.
Reviews (1)
Valerie Obryan
Jul 04, 2019 Report
Excellent service arrived on time each day windows fitted quickly and efficiently when finished cleaned up thoroughly