Intelligence Reports

Glazing Upgrade Market
Intelligence Report

Data-Driven Targeting for Glazing Companies
Report Date: February 2026
Focus: Owner-Occupied Properties with Glazing Upgrade Opportunities


Executive Summary

Our comprehensive analysis of 28.9 million UK properties reveals a significant and highly addressable market opportunity for glazing companies.

Overall Market Breakdown (All Tenures)

Glazing Category Total Properties % of Market Owner-Occupied % Owner-Occupied
Modern Glazing 24,883,221 86.0% 8,509,005 34.2%
Partial Double Glazing 2,404,985 8.3% 1,254,921 52.2%
Single Glazed 1,452,118 5.0% 536,766 37.0%
Secondary Glazing 116,504 0.4% 39,856 34.2%
Other 77,832 0.3% 10,825 13.9%

Key headline:
1,831,543 owner-occupied properties have single glazing, partial double glazing, or only secondary glazing.
This represents 17.7% of all owner-occupied homes in the dataset.

Average property characteristics:

  • Average size: 4.8 rooms
  • Average floor area: 102 sqm

Why This Matters

1. High Owner-Occupancy Rate

52.2% of properties with partial double glazing are owner-occupied.
These homeowners typically have both the motivation and financial capacity to invest in upgrades.

2. Estimated Window Count

Using a conservative 1:1 room-to-window ratio, this equates to approximately:

8.8 million windows across owner-occupied upgrade opportunities.

3. Significant Property Sizes

Average sizes (4.8 rooms, 102 sqm) indicate substantial middle-market homes, not marginal or low-value stock.


Detailed Market Segmentation

By Property Size and Upgrade Type

Property Size / Rooms Floor Area Upgrade Type Properties Avg Rooms Estimated Windows
4–5 rooms (medium) 70–100 sqm Partial Double 373,091 4.5 1,696,639
6–7 rooms (large) 100–150 sqm Partial Double 167,138 6.3 1,057,563
1–3 rooms (small) Under 70 sqm Single Glazed 159,505 2.4 380,057
4–5 rooms (medium) 100–150 sqm Partial Double 149,247 4.8 711,950
1–3 rooms (small) Under 70 sqm Partial Double 135,521 2.7 359,342
4–5 rooms (medium) 70–100 sqm Single Glazed 120,439 4.5 539,863
8+ rooms (very large) Over 200 sqm Partial Double 87,713 9.8 863,050
4–5 rooms (medium) Under 70 sqm Partial Double 78,442 4.2 331,713
6–7 rooms (large) 150–200 sqm Partial Double 68,854 6.6 455,453
1–3 rooms (small) 70–100 sqm Partial Double 52,305 3.0 154,473

Key Insights

  • Medium-sized homes (4–5 rooms, 70–100 sqm) form the largest single opportunity segment
  • Very large homes (8+ rooms) represent a premium, high-margin market
  • Homes with partial double glazing are conversion-ready and easier to sell than single-glazed stock

Geographic Targeting

Top Local Authorities by Opportunity Count

Rank Local Authority Total Opps Single Glazed Partial Double Avg Rooms Avg Floor Area
1 Birmingham 33,226 7,053 25,847 5.1 102 sqm
2 Wandsworth 26,030 10,030 15,678 4.5 102 sqm
3 Westminster 25,580 15,790 8,156 3.7 101 sqm
4 Cornwall 25,114 8,008 16,682 5.2 115 sqm
5 Brighton & Hove 23,713 10,155 13,284 3.8 87 sqm
6 Kensington & Chelsea 22,765 12,933 8,945 4.0 114 sqm
7 Bristol 20,676 6,404 14,093 4.8 107 sqm
8 Lambeth 20,294 9,827 10,077 4.2 93 sqm
9 Leeds 17,186 3,825 13,059 5.1 106 sqm
10 Camden 16,826 9,468 6,820 3.8 97 sqm

Geographic Insights

  • London dominates: 9 of the top 20 markets are London boroughs
  • Major cities (Birmingham, Leeds, Manchester, Liverpool) provide dense opportunity
  • Affluent rural authorities (Cornwall, Wiltshire, Dorset) show strong premium demand
  • Period properties in Westminster and Kensington & Chelsea drive single-glazing upgrades

Market Recommendations

Priority 1: Medium Homes with Partial Glazing

  • 373,091 properties
  • Typical family homes
  • Easier conversion
  • Focus: Birmingham, Bristol, Leeds

Priority 2: Large Premium Properties

  • 167,138 properties (6–7 rooms)
  • Higher contract values
  • Focus: London boroughs, Wiltshire, Dorset

Priority 3: London Period Properties

  • High single-glazing prevalence
  • Heritage and conservation expertise required
  • Premium pricing potential

Data Advantages

What Makes This Data Valuable

  • Precise glazing status
  • Owner-occupancy filtering
  • Property size for accurate quoting
  • Whole-market coverage
  • Government-verified EPC data

Potential Use Cases

  • Direct marketing
  • Sales territory planning
  • Product positioning
  • Installer partnerships
  • Market forecasting

From Data to Intelligence

Traditional reports tell you:

“373,091 medium homes with partial double glazing”

Xenscope delivers:

Exact addresses, glazing type, size, value, and affluence

Stop buying territory reports.
Start knocking on the right doors.


How It Works

  1. Search
    Filter properties using 90+ attributes including Affluence & Capacity Index

  2. Select
    Choose from 110+ data fields and export to CRM-ready formats

  3. Send
    Deliver personalised outreach with property-specific insight


Compare Your Results

Lead Source What You Get Cost Conversion Cost / Sale
Generic Postcode Lists Thousands of properties £200 0.5% £40+
Home Improvement Aggregators Shared leads (10+ competitors) £25–£150 2–5% £500–£7,500
Xenscope Precision Data Exact address + full property profile £1–£3 6%+ £20–£150

The difference:
You know exactly what they need before you knock.


Beyond Glazing

Apply the same intelligence to:

  • Wall insulation (5.28M opportunities)
  • Loft insulation (7.34M)
  • Solar installations (12M+)
  • Heat pumps (8M+)
  • Boilers (10M+)
  • EV chargers (18M+)

One platform. Every property in the UK.


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