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Business Details
19 Years
experience
Commercial Pressure Washing & Window Cleaning Services
Crystal Maintenance was founded in August 2007 by Mauricio Diaz, who built his expertise through years of hands-on experience with leading property management and window cleaning companies in the San Francisco Bay Area. Our team combines deep industry knowledge with a commitment to delivering exceptional commercial cleaning services, including high-rise window cleaning, pressure washing, and specialized cleanup solutions. We serve over 100 cities across Northern California, prioritizing client satisfaction through responsive service and attention to detail.

Our proven track record with major clients like Bank of the West Tower and Marriott Fremont demonstrates our ability to meet the highest standards in commercial maintenance. With active involvement in every aspect of operationsfrom employee training to equipment investmentwe ensure consistent quality across all projects.
Services
Pressure Washing High Rise Window Cleaning Solar Panel Cleaning Awning Cleaning Metal Panel Cleanup Water Stain Removal High Dusting
Details
  • Year established: 2007
Highlights and features
  • We have over 15 years of experience in commercial cleaning services
  • Our team serves 9 Northern California Bay Area counties
  • We maintain active partnerships with major property management companies
  • Our founder personally oversees equipment and training investments
  • We provide responsive service with proven client satisfaction
What people say
Professional and knowledgeable Quick to respond Excellent job performance Best window cleaning service Great interior and exterior cleaning
Services
Pressure Washing
Our pressure washing service removes dirt, grime, and stains from commercial building exteriors, sidewalks, and parking areas. Using industrial-grade equipment, we restore surfaces to like-new condition while protecting surrounding landscaping. This service maintains property aesthetics and prevents long-term surface damage through regular maintenance.
High Rise Window Cleaning
We specialize in high-rise window cleaning for commercial buildings using rope access and aerial lift equipment. Our certified technicians clean windows up to 20 stories high, maintaining safety standards while ensuring streak-free results. Regular cleaning preserves building appearance and glass integrity for property managers and business owners.
Solar Panel Cleaning
Our solar panel cleaning service removes dust, dirt, and debris that reduce energy efficiency. Using specialized equipment, we clean panels without damaging sensitive surfaces. Regular maintenance ensures optimal energy production for commercial solar installations across Northern California.
Awning Cleaning
We clean commercial awnings and canopies using gentle methods that remove mold, mildew, and stains without damaging fabric. Our process restores appearance while maintaining material integrity. This service extends awning lifespan and improves business storefront presentation.
Metal Panel Cleanup
Our metal panel cleaning service removes industrial residue, oxidation, and environmental contaminants from commercial building exteriors. Using pH-neutral solutions, we restore metal surfaces without corrosion. This maintenance prevents premature degradation and maintains professional appearance for metal-clad structures.
People
Mauricio Diaz
Founder
Mauricio Diaz established Crystal Maintenance in 2007 after gaining extensive experience with top Bay Area property management and window cleaning companies. He oversees daily operations, employee training, and equipment investments while maintaining active involvement in client service delivery.
Questions
What commercial cleaning services do you offer?
We provide pressure washing, high-rise window cleaning, solar panel cleaning, awning cleaning, metal panel cleanup, water stain removal, and high dusting services for commercial properties.
Which areas do you serve?
We serve 9 Northern California Bay Area counties including Alameda, Contra Costa, Marin, Napa, San Francisco, San Mateo, Santa Clara, Solano, and Sonoma.
How experienced is your team?
Our founder has over 15 years of commercial cleaning experience, and our team maintains partnerships with leading property management companies across the region.
Can I get a free quote?
Yes, we offer free quotes for all commercial cleaning services through our contact form or by calling our Fremont office directly.
What sets you apart from competitors?
We combine hands-on owner involvement, equipment investment, and proven experience serving major clients like Bank of the West Tower and Marriott Fremont.