Window Cleaning Cost Calculator
Estimate window cleaning costs based on number of windows, storeys, and access difficulty. Compare interior-only vs full clean pricing.
Last updated: March 2026
Quote Total
£$42
Cost per Window
£$3.50
Annual Cost
£$504
How You Compare
Your cost per window is in the bottom 54% of UK window cleaning.
Industry typical: £2.50-£6 per window
Source: WCF Industry Data 2025
💡 What This Means
- 📊 £3.50 per window is within the typical UK range of £2.50-£6.00.
- 💰 Your annual window cleaning cost of £504 could be reduced by switching to quarterly visits — most homes only need cleaning every 3-4 months.
- 💡 Regular window cleaning prevents hard water staining which becomes permanent. Monthly is ideal for business premises, quarterly for residential.
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What is Window Cleaning Cost?
Window cleaning cost is the price to have interior and exterior windows professionally cleaned. Pricing is influenced by the number of windows, accessibility (ground floor vs upper storeys), window type, and whether the property is residential or commercial. Regular customers typically pay less per visit.
The Formula
Total Cost = Number of Windows × Cost per Window × Access Difficulty Multiplier
Access difficulty multiplier accounts for upper floors, hard-to-reach windows, and requirements for ladders or water-fed poles. Ground floor = 1.0x, first floor = 1.3x, second floor+ = 1.5x.
Worked Example
A house has 12 windows: 8 at ground floor (£3 each) and 4 on the first floor needing a 1.5x access multiplier.
- Ground floor = 8 × £3.00 = £24.00
- First floor = 4 × £3.00 × 1.5 = £18.00
- Total = £24.00 + £18.00 = £42.00
📌 The total window cleaning cost is £42 per visit — £3.50 per window on average including the access premium.
Why This Matters
Kerb appeal
Clean windows dramatically improve a property's appearance. For sellers, it's one of the cheapest ways to boost first impressions — a £30-40 window clean before viewings is worth the investment.
Maintenance savings
Mineral deposits, hard water stains, and oxidation build up over time and can permanently etch glass. Regular cleaning every 4-8 weeks prevents costly glass restoration or replacement.
Common Mistakes
❌ Only cleaning exteriors
Interior glass gets dusty, marked by fingerprints, and develops condensation residue. Interior + exterior cleaning costs only 30-40% more but makes a noticeable difference.
❌ Ignoring frames and sills
Dirty frames transfer grime onto clean glass when it rains. A good window cleaner includes frames and sills — check this is included before booking.
Industry Benchmarks
| Category | Good | Average | Poor |
|---|---|---|---|
| Per window (ground) | £2-3 | £3-5 | £6+ |
| Per visit (average home) | £15-25 | £25-40 | £50+ |
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