Interior vs Exterior-Only Window Cleaning: What's Right for Your Phoenix Home?
The most common question we get on the phone: 'Do I really need the inside cleaned too?' The honest answer is: not always. Here's how to decide for your Phoenix home.

The quick answer
Most Phoenix homeowners are best served by alternating: full interior + exterior in the spring, exterior-only after monsoon, and interior refresh before the holidays. That mix keeps glass looking new and cuts total spend by roughly 25% versus doing full-service every visit.
When exterior-only wins
- Post-monsoon September wash — interior is still clean from spring.
- Quarterly refresh for homes near sprinklers or pools.
- Pre-listing quick refresh for realtor photos.
- Bundled with solar panel cleaning where the crew is already outside.
When full-service wins
- Once a year in spring — always worth it.
- Before hosting a wedding, holiday, or open house.
- After remodeling or painting when interior glass is dusty.
- For homes with heavy interior condensation or pet-nose smudges on lower panes.
How we recommend alternating
Not sure which is right for your home? Text us photos and we'll recommend the smartest plan.
Frequently asked questions
Is exterior-only cheaper than half the full price?
Yes — roughly one-third off full service, because exterior takes more time than interior on most homes.
Do you still brush the screens on exterior-only jobs?
Yes. Every Sparkle Tech visit includes screen brush + rinse and exterior track wipe.
About the author
Sparkle Tech Window Washing LLC
Family-owned window cleaning, solar panel cleaning, and screen service across the Phoenix Valley for 20+ years. Fully insured, bonded, and BBB-accredited. Published June 25, 2026 · Updated July 23, 2026.




