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OMNIA uPVC windows give you slim sightlines, strong thermal performance, and advanced security in a true double-flush profile. Available locally through our Lancashire team, specified for today and ready for future regulations.
The OMNIA profile delivers a clean, double-flush look inside and out. Timber-style corner detailing suits period homes; modern trims suit contemporary builds. Use one consistent aesthetic across casement, tilt & turn, French doors, bays, and residential doors.
• Double-flush inside and out
• Timber-style corner detail
• More glass, less frame for light
OMNIA is engineered for thermal and acoustic performance. With suitable glazing, U-values can reach 0.79 W/m²K (triple) and around 1.2 W/m²K (double). Double rebates improve weather protection. Quality hardware keeps operation smooth.
At-a-glance:
• U-values from 0.79 W/m²K (spec-dependent)
• Double-rebated frames for weather resistance
• Compatible with premium hardware
OMNIA meets recognised standards for weather, security and thermal performance, including BS 6375 (parts 1–3) and PAS 24. With the right glazing, specifications can deliver U-values from 0.79 W/m²K for compliance-led projects.
Badges
• BS 6375-1/2/3 (weather)
• PAS 24 (security)
• From 0.79 W/m²K (thermal)
Use the same profile across townhouses, cottages, new builds and refurbishments. Keep a unified look with matching windows and doors installed by a local team that understands North West property styles.
Casement, tilt & turn, bays, outward-opening French doors, and residential doors.
Choose from light and earthy tones, dark modern shades, and timber-effect finishes. Options include Claystone, Agate Grey, Cream, Chartwell Green, Pebble Grey, Anthracite Grey (grained or smooth), Beck Brown, Ulti Matt Black, Irish Oak, Sage Green, and Ginger Oak. Swatches recommended before ordering.
Note: Full made-to-order selection available; colours shown are indicative.
• Frame depth: 70 mm
• Profile style: True double-flush (inside & out)
• Seals: Co-extruded PCE gaskets
• Weathering: Double-rebated design
• Security: PAS 24-ready specification
• Thermal: From 0.79 W/m²K (glazing-dependent)
• Mullions: Invisible mullion option
• Jointing: Mechanical jointing compatible
OMNIA incorporates details that speed up production and keep finishes consistent—useful for one-off homes and multi-plot sites our team supports across the North West.
Feature list:
• Rider block mechanism for faster assembly
• Invisible mullions for a clean, uninterrupted look
• Mechanical jointing compatibility
• 70 mm frame depth for straightforward upgrades
• Multiple bead options for style matching
• Double rebates for added protection
• Co-extruded PCE gaskets for consistent sealing
Got questions about OMNIA windows? This section covers performance (U-values), security (PAS 24), styles, colours, installation, and aftercare. If you don’t see what you need, drop our Lancashire team a line for clear advice and a quick quote.
Get a Quote for uPVC Windows in BlackburnWith triple glazing, down to 0.79 W/m²K. With double glazing, around 1.2 W/m²K, subject to glass unit choice.
Yes. The 70 mm depth supports like-for-like upgrades with minimal disruption.
The double-rebated design improves resistance to wind and rain for long-term reliability.
OMNIA is designed to meet PAS 24 when combined with compatible hardware and glazing.
Casement, tilt & turn, bays, French doors and residential doors, all using the same double-flush profile.
Situated in the very heart of Blackburn, we are readily capable of providing the people of East Lancashire and surrounding areas with a range of UPVC, composite and aluminium products. Whether for personal or trade purposes, realising your aspirations are only one step away with Great Harwood Windows team.
