Business Details
Trusted Windows and Doors Supplier in Andover
Leigh Williams Windows has established itself as a trusted provider of high-quality windows, doors, and conservatories across Hampshire. With over 25 years of industry experience, the company prioritises genuine expertise and customer-centric service, serving both homeowners and builders without aggressive sales tactics. As a FENSA-recognised installer, we ensure compliance with building regulations while offering insurance-backed guarantees for added peace of mind. Our partnerships with renowned brands like VEKA and REHAU allow us to supply technically advanced UPVC products tailored to individual needs. The business thrives on word-of-mouth recommendations, reflecting our commitment to transparency, competitive pricing, and professional installation.Our team combines technical knowledge with practical insights to guide customers through product selection and design, ensuring solutions that align with budgets and aesthetic preferences. The showroom in Andover provides a tangible experience of our product quality, while our trade services streamline processes for builders. Customer testimonials highlight consistent satisfaction with our workmanship, communication, and after-sales support. By focusing on long-term relationships over short-term gains, we maintain a reputation for reliability and excellence in the double-glazing sector.
Services
Windows
Doors
Conservatories
Bi-folding Doors
Patio Doors
UPVC Casement Windows
Aluminium Windows
Residence 9 Windows
Timber Frames
Fascia & Guttering
Highlights and features
- 25+ years of industry experience guiding product recommendations
- FENSA-certified installations ensuring building regulation compliance
- Insurance-backed guarantees for all products
- No-pressure consultations prioritising customer needs
- Preferred supplier for Andover's leading builders
Associations and certifications
- FENSA
- GGFi
- REHAU
- VEKA
What people say
Excellent customer service
Genuine expertise
Perfectly fitted
Highly recommend
Excellent value
Services
Windows
We supply and install A/C-rated UPVC, aluminium, and timber windows including casement, Georgian, bow/bay, and vertical sash styles. Our products combine energy efficiency with customisable finishes, offering durability and thermal performance. Customers benefit from expert guidance on RAL colour options and heritage-style Residence 9 alternatives.
Doors
Our door solutions include solid-core composite, foam-filled composite, and UPVC options alongside bi-folding and French doors. Designed for security and aesthetics, installations feature precise fitting and material choices tailored to property style. Trade customers receive streamlined supply-and-fit services with competitive pricing.
Conservatories
We create custom conservatories in traditional Victorian, Edwardian, or modern lean-to designs. Full project management includes structural integration, glazing specifications, and interior/exterior finish coordination. Bespoke options ensure seamless blending with existing architecture while maximising natural light.
Orangeries
Our orangeries combine brickwork with expansive glazing for a transitional space between traditional extensions and conservatories. Expert design consultations ensure proportionate integration with properties, featuring premium materials and energy-efficient thermal performance for year-round usability.
Bi-folding Doors
Aluminium bi-folding doors provide sleek, space-saving transitions between indoor and outdoor areas. We offer precision-engineered installations with low thresholds and weatherproof seals. Custom configurations accommodate varying aperture sizes while maintaining structural integrity and aesthetic coherence.
People
Leigh Williams
Founder
With 15 years of double-glazing expertise, Leigh established the company on principles of transparency and technical excellence. His hands-on approach ensures every installation meets rigorous quality standards while maintaining competitive pricing for both trade and residential clients.
Questions
Do you offer trade pricing for builders?
Yes, we provide competitive trade pricing with streamlined supply-only or supply-and-install options. Our team offers free consultations to assist builders with client projects.
Are your installations FENSA-certified?
All our window and door installations carry FENSA certification, ensuring compliance with UK building regulations without requiring additional council approval.
What areas do you serve?
We operate across Hampshire, with a focus on Andover and surrounding regions. Our showroom allows local customers to view product samples before purchasing.
Do you provide guarantees?
Every installation includes an insurance-backed guarantee, covering both product defects and workmanship for added customer protection.
Can I customise window finishes?
Yes, we offer RAL colour-matched frames, woodgrain effects, and heritage-style Residence 9 composite options to complement any property aesthetic.
Do you install conservatories?
We provide full-service conservatory builds in traditional and modern designs, working with trusted contractors to ensure structural integrity and thermal efficiency.
