Business Details
11 Years
experience
Your Trusted Partner for Windows and Doors in Bristol
ZEN Windows has been serving Bristol since 2015, establishing itself as a trusted provider of premium double-glazing, windows, doors, and conservatories. Our locally-based team combines technical expertise with a commitment to quality, offering A-rated energy-efficient products backed by a 25-year guarantee. We prioritise punctuality, transparency, and tailored solutions, ensuring installations align precisely with client requirements. As a CERTASS-certified company, we adhere to rigorous industry standards, providing insurance-backed guarantees and compliance with building regulations.Our no-pressure sales approach allows customers to make informed decisions at their own pace, supported by detailed written quotations. With a focus on sustainability, we recycle old materials and utilise UK-fabricated uPVC systems. Our reputation for reliability and craftsmanship has been built through consistent delivery of high-quality installations and exceptional customer service, earning us glowing reviews and repeat business across Bristol and surrounding areas.
Services
Double-Glazing
Windows
Doors
Conservatories
Triple-Glazing
Details
- Year established: 2015
Highlights and features
- We offer 25-year insurance-backed guarantees on all installations
- Our locally-based team provides tailored solutions for Bristol properties
- CERTASS-certified installations ensure compliance with building regulations
- No-pressure sales approach with detailed written quotations
- UK-fabricated uPVC systems with A-rated energy efficiency
Associations and certifications
- CERTASS
What people say
Outstanding experience
Excellent service
Highly recommend
Spotless installations
Transformed our home
Services
Double-Glazing
Our double-glazing solutions enhance energy efficiency and security while reducing noise pollution. Each installation uses A-rated uPVC systems with advanced thermal insulation properties. Backed by a 25-year guarantee, our double-glazing improves property value and comfort for Bristol homeowners.
Conservatories
Custom-built conservatories feature premium roofing systems from Wendland and Ultraframe. Designed for durability and energy efficiency, these structures withstand British weather while extending living spaces. Each project includes tailored design consultations and professional installation.
Composite Doors
Our composite doors combine advanced security features with thermal efficiency and aesthetic appeal. Manufactured with multi-point locking systems and insulating cores, they provide lasting durability. Available in various styles to complement different property types across Bristol.
Sash Windows
Specialist sash window replacements maintain period features while upgrading performance. We install energy-efficient alternatives with smooth operation and low-maintenance materials. Ideal for preserving character in older Bristol properties while improving insulation.
Conservatory Roofs
We offer conservatory roof replacements using insulated systems that enhance thermal efficiency. Our solutions transform outdated conservatories into comfortable living spaces while maintaining structural integrity. Includes full installation and compliance with building regulations.
Questions
Do double-glazed windows add value to a property?
Yes, double-glazed windows improve energy efficiency, security, and noise reduction, which can increase property value by enhancing overall appeal to potential buyers.
What guarantees do you provide?
We offer a 25-year guarantee on white uPVC frames, 10 years on moving parts and glass units, with all guarantees insurance-backed through our CERTASS certification.
Are your installers certified professionals?
Yes, our team are CERTASS-certified installers who undergo regular assessments to maintain compliance with current building regulations and industry standards.
Can you replace non-standard window types?
Yes, we specialise in replacing challenging window types including non-standard sash windows and uniquely shaped conservatories with custom-fitted solutions.
How long does installation typically take?
Most window installations complete within 1-2 days, while conservatory projects typically take 4-6 weeks depending on complexity and size.
Do you offer free consultations?
Yes, we provide free no-obligation home visits to assess requirements and offer tailored written quotations without pressure to commit immediately.
