Glazing Compliance & Insurance Certificates

Glazing Compliance, Insurance Credentials & Certifications

Statutory company credentials, comprehensive trade insurance policies, and certified building control compliance confirm contractor competence and client protection under UK law. Window Fitters Ltd operates in strict accordance with UK statutory Building Regulations, health and safety legislation, and British Standards across Greater London, Surrey, and the South East.

Whether completing domestic replacements for private homeowners or delivering commercial facade installations for main contractors, our works are backed by £5,000,000 Public Liability cover, £10,000,000 Employers Liability insurance, 100% CSCS-certified glazing installers, and independent Building Regulations certification.

Active £5,000,000 Public Liability Insurance Schedule

Verified Company and Insurance Credentials

To verify our legal trading identity and insurance coverage for private contracts, council building control notices, or commercial main contractor pre-qualification questionnaires (PQQs), our core statutory details are confirmed below:

For commercial project managers preparing pre-construction files, full insurance broker letters and policy schedules can be reviewed alongside our standard subcontract frameworks in our commercial contracts guide and statutory declarations in our legal documents directory.

UK Building Regulations Compliance & Certification

Every window, external door, and architectural screen installed by Window Fitters Ltd complies with statutory requirements outlined in the Building Regulations 2010 (England and Wales):

• Approved Document L (Conservation of Fuel and Power): All replacement windows achieve a whole-window Uw value of 1.4 W/m²K or better (or WER Band B minimum). External replacement doors achieve a whole-doorset Ud value of 1.4 W/m²K or better. Learn more about performance calculation in our window U-value guide.
• Approved Document F (Ventilation): In accordance with the 2022 ventilation standards, replacement windows include background trickle ventilators providing a minimum of 8,000 mm² equivalent area per habitable room and 4,000 mm² per wet room. Review airflow requirements in our trickle vents guide.
• Approved Document K (Protection from Falling, Collision & Impact): Toughened safety glass compliant with BS EN 12150 or laminated safety glass compliant with BS EN 12600 Class 1B1 is fitted in all critical locations, including all doors, side panels within 300 mm of door frames, and low-level glazing situated below 800 mm from finished floor level.
• Approved Document Q (Security in Dwellings): For new build developments and structural alterations, accessible windows and doors incorporate multi-point shootbolt locking, 3-star TS007 anti-snap lock cylinders, and security laminated outer glazing. Read our technical testing summary in our PAS 24 security guide.
• Approved Document B (Emergency Egress): Habitable first-floor rooms incorporate emergency egress windows providing an unobstructed clear opening area of at least 0.33 m² with minimum dimensions of 450 mm width and height, fitted with 90-degree egress friction stays. Consult our certified protocols in our building regulations guide.
• Approved Document A (Structural Safety): Structural openings, replacement bay window posts, and load-bearing transoms are verified with structural calculations and fitted with heavy-duty jacking plates to prevent masonry deflection.

The LABC Independent Inspection & Certification Workflow

As an independent fenestration specialist, Window Fitters Ltd supports the transparent Local Authority Building Control (LABC) notification workflow. This ensures every residential opening alteration and commercial contract is audited on site and officially recorded on the local authority land charges register.

British and European Standards Compliance

All framing systems, sealed glass units, and installation ancillaries supplied by Window Fitters Ltd are sourced from verified British and European fabricators adhering to rigorous quality standards:

• BS EN 1279 (Glass in Building - Insulating Glass Units): Regulates hermetic edge seal durability, moisture vapour transmission rates, and argon gas concentration (maintaining minimum 90% gas retention over the service life).
• BS 7412 (uPVC Windows and Doorsets): Specifies profile wall thickness, mechanical corner weld strength, weather tightness against driving rain, and corrosion resistance for window hardware.
• BS EN 12150 & BS EN 12600 (Safety Glass): Governs the fragmentation patterns and impact resistance of thermally toughened and laminated safety glass panels.
• BS 8213-4 (Code of Practice for Installation): Trade standard governing survey measuring tolerances, load-bearing packings, mechanical fixing centres (600 mm max centres), perimeter thermal insulation, and external silicone sealing.
• PAS 24 (Enhanced Security Performance): Stringent mechanical testing verifying burglar resistance against prying force, cutting, and forced physical intrusion.

10-Year Workmanship and Manufacturer Warranty

All complete installations carried out under our supply and fit service are protected by our comprehensive warranty program:

• 10-Year Frame Guarantee: Covers uPVC and aluminium profiles against warping, cracking, discolouration, and structural failure.
• 5-Year Sealed Unit Warranty: Protects double and triple-glazed units against internal condensation and hermetic seal breakdown.
• 5-Year Hardware Warranty: Covers moving mechanical parts including multi-point locks, friction hinges, espagnolette gearboxes, and handles.

Review complete warranty schedules, exclusions, and maintenance obligations in our published guarantee terms and conditions.

10-Year Workmanship and Product Guarantee Certificate

Workforce Qualifications and Health & Safety Accreditations

Our site fitting teams operate to strict commercial health and safety standards across London and Surrey. Window Fitters Ltd maintains an active workforce qualification program:

• 100% CSCS-Certified Glaziers: Every installer holds a valid Blue Skilled Worker card for Fenestration Installation or Gold Supervisor card. Learn more in our CSCS card guide and meet our team via our qualified installers directory.
• Site-Specific RAMS: Commercial projects include comprehensive risk assessments and method statements detailing edge protection, mechanical glass lifting, and public segregation. Read our RAMS document guide and review on-site protocols in our safety measures guide.
• Environment Agency Waste Carrier: We hold upper-tier waste carrier licence CBDL650268. Old timber, aluminium frames, and glass are separated and transported to licensed recycling facilities to minimise landfill impact.

Frequently Asked Questions About Glazing Certificates & Compliance

Request Compliance Certificates & Tender Documentation

To request policy schedules, broker verification letters, product kitemark declarations, or project-specific RAMS for upcoming residential or commercial installations, contact our technical compliance team:

• Telephone our office directly on 020 3411 0589 for compliance inquiries or tender schedules.
• Send tender specifications or architectural drawings via WhatsApp for prompt verification.
• Submit technical tender documents by email to info@windowfitters.uk.
• Request an itemised installation quote on our online quote request page.