Business Details
Trusted Window & Conservatory Experts in Portsmouth
At BJH Windows, we pride ourselves on over four decades of excellence in supplying and installing high-quality windows, doors, and conservatories across the South Coast. As a family-run business established in 1983, we combine traditional values with modern innovation, ensuring every project meets rigorous standards. Our FENSA-regulated team delivers bespoke solutions, from double-glazed windows to energy-efficient conservatories, supported by a 5-year guarantee. With ISO9002 certification and a commitment to sustainability, we prioritise customer satisfaction through transparent pricing, expert craftsmanship, and a personal touch.Our in-house fitters, trained to industry-leading standards, ensure precision and reliability, while our extensive showroom in Portsmouth showcases over 20 door styles and 10 conservatory designs. Trusted by thousands, we remain dedicated to enhancing homes with durable, aesthetically pleasing solutions tailored to individual needs.
Services
Windows
Doors
Conservatories
Warm Roofing Systems
Porches
Roofline Products
Internal Doors
Garage Doors
Lantern Roofs
Guttering & Fascias
Highlights and features
- Over 40 years of local experience in window and door installations.
- Expert in-house fitters trained to industry-leading standards.
- 5-year parts and labour guarantee on all installations.
- FENSA-regulated with ISO9002 quality management certification.
- Commitment to sustainability through energy-efficient products.
Associations and certifications
- FENSA
- Guild of Master Craftsmen
- ISO9002
What people say
Extremely helpful
Great job done
Reliable local company
Amazing service
Highly recommend
Services
Windows
We offer a comprehensive range of double and triple-glazed windows in uPVC and aluminium, designed to enhance energy efficiency and security. Our products include sash, Residence 9, and wood-effect styles, all featuring A++ energy ratings and 23 standard colourways. With options for heritage or contemporary properties, our windows combine thermal performance with aesthetic appeal, ensuring year-round comfort and reduced energy bills.
Conservatories
Our conservatories and orangeries are crafted with 100mm A++ energy-rated frames and double/triple glazing for optimal thermal efficiency. Available in Edwardian, Victorian, and modern designs, they feature heat protection and durable materials. Each structure is tailored to blend with your homes architecture, adding functional living space and increasing property value through enhanced insulation and light transmission.
Warm Roofing Systems
Transform your conservatory with our warm roofing systems, offering U-values as low as 0.12 W/mK for superior insulation. Choose from tiled, solid, or glazed options with configurations to suit existing or new builds. These lightweight, weather-resistant roofs reduce heat loss and condensation, ensuring year-round usability while complying with building regulations for structural integrity and energy efficiency.
Internal Doors
Enhance your space with AluSpace internal doors, featuring slimline aluminium frames for maximum natural light and acoustic comfort. Available in hinged, sliding, or pivot designs with frosted or clear glass options, they provide privacy without compromising openness. Customisable finishes and configurations ensure seamless integration with modern or traditional interiors across residential and commercial settings.
Porches
Our bespoke porches combine security and style with multi-point locking systems and Secured by Design accreditation. Constructed from uPVC or aluminium, they offer pitched, gable, or flat roof options with decorative glass and woodgrain finishes. Designed to withstand UK weather, these porches provide weatherproof protection, improved kerb appeal, and enhanced property value through durable, low-maintenance materials.
People
Alan Hamilton
Director
With over 40 years in the industry, Alan leads BJH Windows with a commitment to quality and customer satisfaction. His expertise in glazing solutions ensures every project meets rigorous standards while maintaining the family-run ethos established by founders Brian and June Hamilton.
Colin Giles
Director
Colin has steered BJH Windows through economic challenges since its founding, blending traditional craftsmanship with modern innovation. His focus on sustainable practices and client-centric service has solidified the company's reputation as a trusted local leader in home improvement solutions.
Questions
What types of windows do you offer?
We provide double and triple-glazed uPVC, aluminium, and Residence 9 windows in 23 standard colours, with A++ energy ratings and customisable finishes for both modern and heritage properties.
Do you install conservatories?
Yes, we supply and install energy-efficient conservatories and orangeries with 100mm A++ frames, double/triple glazing, and heat protection, tailored to your home's style and needs.
Are your products energy efficient?
All our windows, doors, and roofs meet A++ energy ratings, with warm roofing systems achieving U-values as low as 0.12 W/mK to reduce heat loss and lower energy bills.
Do you offer a guarantee?
We provide a 5-year parts and labour guarantee on all installations, ensuring long-term performance and customer satisfaction with our FENSA-regulated work.
Can I finance my project?
Yes, we offer credit options subject to status through Novuna Personal Finance, with transparent terms and no hidden fees for approved applicants.
Do you handle planning permissions?
Our team assists with planning requirements for conservatories and porches, ensuring compliance with building regulations and local authority guidelines where necessary.
