At Alliance Window Cleaning we specialize in both residential and commercial window cleaning. We offer free estimates competitive prices and superior quality service! Voted number one window cleaning service in the Dallas/Fort Worth metroplex. We are Fully Insured! $1,000,000 General Liability $1,000,000 Commercial Auto Coverage A+ rating with the Better Business Bureau Alliance Window Cleaning donates 10 percent of their total sales to the East Texas Food Bank.