1. Introduction: Purpose and Audience
This checklist is for procurement teams, architects and facilities managers specifying large-scale shading for commercial buildings. Use it to produce procurement-ready tender documents for commercial blinds in Bristol and across the UK, bespoke awnings and made-to-measure blinds.
Outcomes to target with this document:
- Robust, measurable specifications and a clear compliance matrix.
- Fewer variations/change orders through defined acceptance criteria.
- Improved lifecycle value via maintainable products and documented aftercare.
Artistic Blinds has delivered tailored commercial projects since 1979 throughout Bristol and the UK, providing survey, manufacture and installation expertise you can rely on.
2. Project Brief and Scope of Works
Define scope precisely and remove ambiguity:
- Drawings and schedules: list elevations, plan locations, quantities and a room-by-room/elevation schedule with unique IDs.
- Product families required: roller blinds, exterior roller blinds, Topas awnings, canopies, parasols (state if alternatives are acceptable).
- Dimensions: indicate measured sizes vs. site-verify, and whether bespoke sizes are anticipated.
- Surveys and programme: require a free pre-manufacture site survey and state target lead times from approval to installation.
- Approvals: include obligations for fabric/finish samples, mock-ups (if required) and final site measurements before manufacture.
Refer bidders to relevant case studies. See our projects and the Topas awning project for Parsons Bakery as a typical retail installation.
3. Product Types and Materials to Specify
List acceptable product types and finishes clearly:
- Internal: roller blinds, vertical blinds, wooden/faux-wood venetians, rooflight/skylight blinds.
- External: exterior roller blinds, Topas Non Cassette, Commercial Heavyduty I2000, canopies and parasols.
- Finishes: powder-coat colour ranges (state RAL or anodising), and stainless steel fixings for exposed sites.
Fabric and performance requirements (name preferred ranges where helpful, e.g. Banlight Blackout, Palette FR Dimout, Unicolour Dim-out, Unilux/Uniview PVC blackout):
- Fire performance: state required FR class (see Section 4) with current test certificates.
- Optical/thermal: target glare control and solar performance (e.g. openness factor, visible light transmittance; blackout where required).
- Durability: UV resistance, cleanability/maintenance method, and colourway consistency across façades.
4. Fire, Safety and Compliance Requirements
Set unambiguous compliance requirements and evidence:
- FR documentation: BS 5867-2 Type B/C (interior fabrics) and/or EN 13501-1 Euroclass where applicable; supply current supplier test certificates.
- Awnings/external blinds: state compliance with EN 13561 (including declared wind resistance class) and provide Declaration of Conformity.
- Internal blinds safety: comply with EN 13120; where relevant (education/healthcare), include child safety provisions per EN 16433/EN 16434.
- Marking and electrical: UKCA/CE conformity for motors/controls (EMC/LVD), and material declarations with each bid.
- Glazing protection: include clauses for safety films where appropriate.
For further guidance, see FR fabrics compliance for outdoor canopies and parasols and the Blackout, Dimout and Fire Retardant Fabrics guide.
This image was generated with AI and may not always represent the product or service exactly.
5. Wind Loading, Site Conditions and Environmental Considerations
Request evidence-based design for external products:
- Wind ratings: declare EN 13561 wind class for awnings/external blinds and provide engineering calculations for exposed/coastal sites.
- Exposure/corrosion: define site exposure and specify corrosion protection (e.g. ISO 12944 C4/C5, marine-grade 316 stainless near coast).
- Fixings/substrates: state substrate types and require pull-out/shear calculations and method statements for fixings.
- Environment: consider flood and glazing risk; request recommendations for protective window films where relevant.
- Evidence: provide references/case studies for comparable UK or coastal projects.
See our note on coastal wind load ratings for exterior blinds and guidance on window films and flood risk.
6. Motorisation, Controls and Integration
Define control philosophy and integration requirements:
- Motors: specify type (mains or battery), torque/sizing, duty cycle, IP rating (e.g. IP44 internal, IP65 external) and manual override where required.
- User controls: wall switches, remotes, group/scene control, time/daylight sensors and safety cut-outs.
- BMS/Smart integration: detail required protocols (e.g. KNX, Modbus, BACnet via gateway), addressing, and handover of as-fitted control schematics.
- Electrical: wiring diagrams, load schedules, isolation, surge protection and coordination with the electrical contractor.
For accessible and automated solutions see our articles on specifying motorised blinds and awnings for accessible buildings and retrofit motorisation options.
7. Installation Access, Logistics and Health & Safety
Set clear duties and evidence requirements:
- H&S: RAMS, CSCS and IPAF evidence; CDM 2015 duties where applicable.
- Access equipment: state who provides MEWP/scaffold/crane and any road closures or out-of-hours working.
- Programme: submit a programme covering survey, manufacture, installation, commissioning, snagging and handover.
- Protection and waste: protect finishes, manage waste removal and coordinate with other trades to avoid clashes.
8. Maintenance, Service Contracts and Lifecycle Planning
Ask for tiered aftercare with clear SLAs:
- Planned service: annual inspections, preventative servicing and emergency call-outs with response times.
- Lifecycle: options for fabric re-skins, motor/control upgrades and refurbishment timelines.
- Spares: confirm availability, lead times and typical component lifespans; include recommended critical spares.
- Training: end-user training and O&M manuals with cleaning/adjustment guidance.
See our commercial blinds lifecycle guide for practical upkeep advice.
This image was generated with AI and may not always represent the product or service exactly.
9. Warranties, Guarantees and Performance Testing
Define coverage, evidence and acceptance testing:
- Minimum terms: state warranty periods for fabrics, motors and structural elements, plus any coastal-site adjustments.
- Inclusions: clarify if labour, access and consumables are covered; require public/product liability insurance proof.
- Commissioning tests: functional tests for motors/controls, wind/retraction tests for awnings and signed handover certificates.
- Aftercare: remediation response times and whether warranties are transferable on building sale.
10. Tender Evaluation Criteria and Supplier Requirements
Use a transparent scoring matrix (example weightings):
- Technical compliance and performance data – 35%
- Total cost of ownership (capex + maintenance) – 25%
- Delivery/lead time and programme – 15%
- Relevant UK/Bristol experience and references – 15%
- Aftercare, spares and warranties – 10%
Supplier submissions must include: technical datasheets, test certificates, sample swatches, project references, method statements, programme and insurance. Prefer evidence of UK-wide delivery, local fitters, and quality/sustainability credentials (e.g. ISO 9001/14001, FSC for timber where applicable).
11. Contract Clauses, Variations and Change Control
Protect the client with clear commercial terms:
- Acceptance criteria and inspection process tied to payment milestones.
- Retention or performance bond; liquidated damages for late delivery.
- Price validity period and a schedule of exclusions/assumptions.
- Change control: agreed day rates and fixed-price options for extras with pre-approved instruction route.
- Snagging and defects correction timelines and a defined defects liability period.
12. Appendices and Sample Specification Templates
Attach copy-ready templates:
- Product schedule (location/ID, product type, dimensions, fabric code, finish, control type, wind class, warranty).
- Snagging checklist and commissioning sign-off form.
- Sample text for motorisation, FR compliance and maintenance requirements.
- Planning/conservation note with links to local guidance for shopfronts and heritage areas.
Need help finalising your tender? Artistic Blinds offers a free survey and no-obligation quote from skilled local fitters in Bristol and across the UK—contact us to discuss your project.
FAQs
What information should I include in a unit-by-unit specification?
Provide location/ID, product type, dimensions (or site-verify), fabric code/colour, finish, control method, wind class (if external), warranty, access constraints and any interface notes (power/data points).
How important are wind ratings for awnings and exterior blinds?
Critical. Specify EN 13561 wind class and site exposure; request engineering calculations and fixing details for exposed or coastal locations.
Can motorisation be retrofitted to existing blinds and awnings?
Often yes. Ask for a retrofit proposal covering scope, costs, power/data requirements, structural checks and commissioning. See our retrofit motorisation options.
What warranty lengths are reasonable for commercial shading?
Typical ranges: fabrics 3–5 years (more for premium ranges), motors 3–7 years, structural elements per product. Require insurers’ proof and clear inclusions/exclusions.
Do I need planning permission for shopfront awnings?
Sometimes. Urban centres and conservation areas may require consent. Include a tender note for suppliers to check local planning rules and advise on any permissions needed.
