UK uPVC Window & Door Replacement Cost Calculators by House Size & Style (2026)
Select your property type (2-bed terraced, 3-bed semi, 4-bed detached), frame profile (Flush Sash, Box Sash, Bay Window), or colour finish (Anthracite Grey, Golden Oak) for exact 2026 FENSA installed costs.
2-Bed Terraced House uPVC Window Replacement Cost (5–6 Windows)
Includes Trickle Vents, PAS 24 Locks, Disposal & FENSA Certificate (U-Value 1.2 W/m²K (Part L1B)).
3-Bed Semi-Detached House uPVC Windows Cost (8–10 Windows)
UK Benchmark Full-House Glazing Package (2–3 Day Installation) (U-Value 1.2 W/m²K (A+ Rated)).
4-Bed Detached House Full Window Replacement Cost (12–15 Windows)
Includes First-Floor Access Towers, Fire Escape Hinges & FENSA (U-Value 1.2 / 0.8 W/m²K).
5-Bed Large Detached House Window & Door Replacement Cost (16–20 Windows)
Full Property Thermal Upgrade (Saves £480–£750/yr on Heating) (Multi-Window Volume Discount).
Bungalow uPVC Window & Patio Door Replacement Cost (6–8 Windows)
Ground-Floor High-Security Laminated & Shootbolt Specification (Part Q PAS 24 Security).
Flat & Leasehold Apartment uPVC Window Replacement Cost & Freeholder Rules
Includes Easy-Clean Reversible Hinges & Part B Fire Egress (Acoustic 38dB Glazing Option).
uPVC Bay & Bow Window Replacement Cost (3, 4 & 5 Facet Bays)
Includes Insulated Bay Canopy Roof & Welded Cill Projection (Load-Bearing Bay Jacks Included).
uPVC Vertical Sliding Sash Window Cost UK (Victorian & Georgian Style)
Deep Bottom Rail, Astragal Bars & Tilt-In Cleaning Mechanism (Conservation Area Approved).
Heritage Flush Sash uPVC Windows Cost (Timber-Look Mechanical Joints)
Flush External Frame Rebate Mimicking Traditional 19th-Century Joinery (Residence 7 / R9 Alternative).
Anthracite Grey (RAL 7016) uPVC Windows Cost (Smooth & Woodgrain Foil)
Dual-Colour Foiled Profile with 10-Year UV Colourfast Guarantee (Heat-Reflective CoolSkin Foil).
Golden Oak, Irish Oak & Rosewood Woodgrain uPVC Windows Cost
Zero Painting or Rot — Traditional Country Cottage Aesthetic (U-Value 1.2 W/m²K).
Chartwell Green, Agate Grey & Cream Heritage uPVC Window Prices
Popular Period Semi & Rural Property Colour Specification (Matching Trickle Vent Hoods).
Tilt & Turn uPVC Windows Cost UK (Dual-Action Ventilation & Egress)
Ideal for High-Rise Flats, Loft Conversions & Modern Extensions (Safe Upstairs Cleaning).
Triple Glazing Cost UK (36mm 0.8 W/m²K) vs Double Glazing Price Difference
+15%–18% Over Double Glazing — Eliminates Cold Downdraughts & Traffic Noise (U-Value 0.8 W/m²K (A++)).
Acoustic Soundproof Windows Cost UK (6.8mm Stadip Silence Glass)
Asymmetric Pane Thickness + PVB Acoustic Interlayer Breaks Sound Waves (Main Road / Flightpath Spec).
uPVC French Doors Cost UK (Supply & Fit Including Side Panels)
Low Aluminium Mobility Threshold + Shootbolt Mullion Locking (Toughened Safety Glass (Part N)).
uPVC Inline Sliding Patio Doors Cost UK (2-Pane, 3-Pane & 4-Pane)
Zero Swing Space Required — Anti-Lift Security Interlock (Maximised Glass Sightlines).
Thermally Broken Aluminium Bifold Doors Cost UK (3-Pane to 5-Pane)
Ultra-Slim 110mm Sightlines in RAL 7016 Anthracite or Matt Black (U-Value 1.3 W/m²K).
Solid-Core GRP Composite Front Door Cost UK (Supply & Fit)
Includes Frame, Decorative Triple Glazing & Brushed Chrome Furniture (Part Q Secured by Design).
10 uPVC Windows + Front Composite Door + Back Door Full-House Package Cost
Single Scaffolding/Fitting Mobilisation + Unified 10-Year IBG Warranty (Save £900+ via Single Fit Team).