Call Now
Website
Call
Business Details
Emergency
services
Your Trusted Partner for Commercial Cleaning Solutions
For over 30 years, Intergroup Facility Services has been dedicated to delivering comprehensive building solutions with a specialization in janitorial services and building operations. Our commitment to excellence is rooted in trust, integrity, and a genuine desire to see our clients and team succeed. We uphold the highest standards of service, combining attention to detail, precision, and a passion for quality to set ourselves apart. Our culture fosters curiosity and professional growth, ensuring our team brings the latest skills and knowledge to every project. We prioritize sustainability and community engagement, striving to make a positive environmental impact through responsible practices.

Our client-centric approach tailors solutions to meet unique needs, ensuring clean, healthy environments for commercial properties. With certifications from EcoLogo and Green Seal, we guarantee environmentally friendly services that meet stringent standards. Our quality assurance program includes detailed inspections, performance tracking, and client feedback to maintain high cleaning standards. We offer 24/7 responsiveness for urgent needs and prioritize transparency, ethical practices, and client satisfaction as the foundation of our success.
Services
Janitorial Services Day Porter Services Window Cleaning Power Washing Emergency Cleaning Event Cleaning Building Operations Electrostatic Disinfection Post-Construction Cleaning Flood Restoration
Highlights and features
  • We offer 35+ years of commercial cleaning experience with a strong reputation.
  • Our certified team delivers superior results using industry-leading technology and methods.
  • Customized cleaning solutions tailored to your environment's specific needs.
  • 24/7 rapid response for urgent cleaning and maintenance requests.
  • Commitment to sustainability and ethical practices protecting your property and the planet.
Associations and certifications
  • EcoLogo
  • Green Seal
What people say
Great service Wonderful people Fantastic customer service Job well done Highly recommend
Services
Janitorial Services
Our janitorial services combine 45+ years of experience with advanced equipment to maintain immaculate commercial spaces. We offer customized daily cleaning, floor care, and health & safety compliance for offices, industrial facilities, and more. Our trained supervisors ensure consistent quality through detailed audits and client feedback.
Window Cleaning
Professional window cleaning using eco-friendly products and advanced techniques for streak-free results. Services include exterior/interior cleaning, hard water stain removal, and sill/frame maintenance for ground-level to high-rise buildings. Flexible maintenance schedules ensure long-term clarity and property value preservation.
Emergency Cleaning
24/7 response for urgent disinfection needs including COVID-19 outbreaks and flood restoration. Our PPE-equipped teams use electrostatic spray technology to eliminate pathogens, with specialized carpet/upholstery cleaning to restore safety and hygiene standards in commercial environments.
Power Washing
Industrial-grade pressure washing removes grime, oil stains, and environmental buildup from parking structures, building facades, and industrial areas. We use commercial-grade solutions and advanced equipment to restore property aesthetics while protecting investments through regular exterior maintenance programs.
Event Cleaning
Comprehensive cleaning for events ranging from small corporate functions to large festivals accommodating 1.3 million visitors. Services include litter management, emergency spill response, and final restoration to original conditions, with coordination for municipal compliance and waste management logistics.
People
Nondas Karelis
President & CEO
Leading with over 30 years of facility management experience, Nondas drives strategic growth while maintaining operational excellence. He oversees quality assurance programs and client relationships, ensuring alignment with the company's core values of integrity and sustainability.
Mary Karelis
Finance Manager
Managing financial operations with precision, Mary ensures fiscal responsibility and sustainable growth. Her expertise in commercial finance supports strategic decision-making and long-term business stability for client-focused service delivery.
Tom Mastorakos
Finance Manager
Tom oversees financial planning and budget management, bringing 20+ years of experience in commercial finance. He works closely with operations teams to maintain cost-effective solutions without compromising service quality standards.
Questions
What commercial cleaning services do you offer?
We provide janitorial services, window cleaning, power washing, emergency disinfection, post-construction cleanup, flood restoration, and event cleaning for commercial properties.
Are your cleaning products environmentally safe?
Yes, we use EcoLogo and Green Seal certified products that meet strict environmental standards while maintaining effective cleaning performance for industrial settings.
How do you ensure cleaning quality?
Our quality assurance program includes daily activity tracking, scheduled inspections, and client feedback reviews to maintain consistent service excellence across all properties.
Do you offer 24/7 emergency services?
Yes, we provide 24/7 response for urgent cleaning needs including pandemic disinfection, flood damage, and other facility emergencies with immediate on-site support.
How are cleaning costs determined?
Costs depend on facility size, service frequency, and specific requirements. Contact us for a customized quote based on your property's unique cleaning needs.
What areas do you service?
Primarily serving Richmond Hill, Ontario, with capacity to handle commercial cleaning projects across the Greater Toronto Area and surrounding regions.