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2026 Pricing Guide

Secondary Glazing Cost UK

Complete guide to secondary glazing costs, prices, and installation expenses. Get accurate pricing information and free quotes for your property.

From £150 per m²
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Secondary glazing cost guide

Secondary Glazing Price Ranges

Typical costs for different secondary glazing systems

Budget Option
DIY Systems
Self-installation kits
£80-150

per m² (materials only)

  • Magnetic systems
  • Basic frames
  • Standard glass
  • Self-installation
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Most Popular
Professional Installation
Complete supply and fit service
£150-300

per m² (fully installed)

  • Professional survey
  • Quality frames
  • Performance glass
  • Expert installation
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Premium
Specialist Systems
Bespoke and high-performance
£300-500

per m² (fully installed)

  • Bespoke design
  • Premium materials
  • Acoustic/laminated glass
  • Heritage compliance
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Factors Affecting Secondary Glazing Cost

What influences the price of your secondary glazing

Window Size & Quantity
Larger areas cost more but offer better value per m²
Small window (1m²)£200-400
Medium window (2-3m²)£300-700
Large window (4-6m²)£500-1,200
Whole house (20+ windows)£4,000-12,000
Glass Type & Performance
Higher performance glass increases cost but improves results
Standard 4mm glassBase price
6mm glass+£15/m²
Acoustic laminated+£40-60/m²
Low-E coated+£25-35/m²
Frame Type & Opening System
Different systems have varying complexity and cost
Fixed panelsLowest cost
Hinged opening+£30-50/m²
Sliding systems+£50-80/m²
Lift-out panels+£20-40/m²
Location & Access
Installation complexity affects labor costs
Ground floor, easy accessStandard rate
Upper floors+10-20%
Central London+15-25%
Listed buildings+20-40%

Cost Comparison: Secondary vs Double Glazing

See how secondary glazing compares financially

Secondary Glazing
Add to existing windows
£150-300

per m² installed

  • Keep existing windows
  • No planning permission
  • Quick installation (1-2 days)
  • Minimal disruption
  • Heritage property suitable
Double Glazing Replacement
Replace entire window units
£400-800

per m² installed

  • Remove existing windows
  • May need planning permission
  • Longer installation (3-5 days)
  • Major disruption
  • Often not permitted in heritage

Potential Savings

Secondary glazing typically costs 50-70% less than double glazing replacement while delivering similar performance benefits.

Return on Investment

How secondary glazing pays for itself

Energy Savings
£200-400

Annual heating bill reduction

Typical payback period of 3-5 years through reduced energy costs and improved comfort.

Property Value
2-5%

Increase in property value

Enhanced energy efficiency and comfort can add significant value to your property.

Quality of Life
Priceless

Improved comfort and peace

Reduced noise, improved warmth, and enhanced security provide immeasurable benefits.

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Use our cost calculator or get a free, no-obligation quote tailored to your specific requirements.