Business Details
39 Years
experience
Your Trusted Janitorial Partner in Horsham, PA
Interstate Maintenance has been delivering high-performance janitorial solutions for over 36 years, rooted in a commitment to positively impact clients and communities. As a family-owned business, we prioritize respect, understanding, and the creation of safe, healthy environments tailored to modern facilities. Our expertise spans customized day-to-day maintenance, special projects, and industry-specific cleaning programs across healthcare, education, industrial, and commercial sectors. Guided by our F.A.M.I.L.Y. culture, we emphasize accountability, integrity, and loyalty, ensuring every client partnership reflects our core values.With advanced training through Interstate University and cutting-edge technology like ATP swab testing and Kaivac systems, we maintain a national standard of excellence in facility services. Our dedication to efficiency, innovation, and employee growth ensures proactive solutions for every client challenge.
Services
Janitorial Services
Construction Cleanup
Floor Care
Pest Control
Disinfecting Program
Event Staffing
Window Cleaning
Snow Removal
Furniture Moves
Security Services
Details
- Year established: 1987
Highlights and features
- We offer 35+ years of specialized janitorial expertise across multiple industries.
- Our family-owned business prioritizes personalized client relationships and accountability.
- Customized cleaning programs adapt to fast-paced healthcare, education, and industrial needs.
- Advanced training through Interstate University ensures staff excellence and compliance.
- Eco-friendly disinfecting programs eliminate pathogens while protecting environments.
Services
Janitorial Services
Comprehensive daily cleaning and maintenance solutions for commercial, industrial, and healthcare facilities. Our services include floor care, disinfection, waste management, and compliance with industry-specific safety standards. Trained staff use advanced equipment to ensure optimal cleanliness and operational efficiency.
Disinfecting Program
Eco-friendly disinfection using ATP testing and hospital-grade solutions to eliminate MRSA, COVID-19, and other pathogens. Targets high-touch surfaces in healthcare facilities, schools, and industrial environments. Provides verifiable cleanliness results through rapid microorganism detection.
Construction Cleanup
Specialized cleaning for newly constructed or renovated spaces. Includes debris removal, surface sanitization, and preparation for occupancy. Our team follows OSHA standards to ensure safe, dust-free environments ready for immediate use by occupants.
Floor Care
Advanced floor cleaning using Kaivac systems for superior soil removal. Services include stripping, waxing, polishing, and maintenance of tile, carpet, and hard surfaces. Extends flooring lifespan while maintaining slip-resistant, hygienic conditions in high-traffic areas.
Event Staffing
Flexible staffing solutions for special events, peak periods, or project-based needs. Trained personnel handle cleaning, logistics, and facility support tasks. Ensures consistent service quality without long-term staffing commitments for clients.
People
Bob Weller
Founder and Chief Executive Officer
Bob Weller founded Interstate Maintenance with a vision to redefine facility services through integrity and innovation. With decades of industry experience, he leads strategic growth while maintaining the company's family-oriented culture and commitment to excellence.
Brad Marg
Vice President of Quality
Brad Marg oversees quality assurance initiatives, ensuring all services meet Interstate's rigorous standards. His expertise in operational efficiency and client satisfaction drives continuous improvement across janitorial programs and training protocols.
Kelley DeSantis
Vice President of Marketing
Kelley DeSantis leads brand strategy and client engagement efforts. With a focus on digital innovation and market expansion, she positions Interstate as a national leader in facility services while emphasizing core values of trust and reliability.
Questions
What industries do you serve?
We specialize in healthcare, education, government, industrial, commercial, hospitality, and life sciences facilities. Our customized programs address unique cleaning requirements for each sector.
Are your cleaning methods eco-friendly?
Yes. Our disinfecting programs use environmentally safe solutions that eliminate pathogens without harsh chemicals, aligning with sustainability goals for modern facilities.
Do you offer 24/7 emergency services?
While standard hours are 8:30 AM - 5 PM, we provide scheduled after-hours cleaning and can arrange emergency response for critical contamination incidents or facility emergencies.
How do you ensure service quality?
Through Interstate University training, ATP swab testing verification, and our F.A.M.I.L.Y. accountability framework, we maintain consistent, audit-ready cleaning standards across all client locations.
Can you handle large-scale facilities?
Yes. With experience in warehouses, manufacturing plants, and multi-building campuses, we deploy scalable teams equipped with industrial-grade tools to manage facilities of any size.
Reviews (5)
Nyc- - Reptile
Jun 27, 2022
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Work for this company for a year and gave them my everything and got nothing back in return I pretty much cleaned the entire warehouse myself since people kept quitting or didn't do anything and nothing was done about it, There management, pay and the company itself is nothing but a joke and it's pathetic, Don't apply for this company not worth the application
Tatita Velez
Feb 23, 2022
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Im gonna talk about the ones in Allentown PA.They dont pay u after u worked for them but u see them on parties on their country spending money. Hope the real owners know about this ppls who doesn't deserve to be on supervisors or managers positions.
Zach Devincenzo
Jun 22, 2021
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Great company. Customer service was responsive and diligent and interstate keeps our work environment clean and spotless. The team I worked with was personable and very helpful. I would recommend to other business!
Amanda Stahmann
Jun 13, 2021
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I have worked for this company for a few years now. It is a great place to work, the company really cares about their people and assures that everyone is properly trained before being sent out into the field. The company's slogan is "work Happy" and they are always coming up with new programs to insure that everyone is happy
Jim Harkins
Apr 23, 2021
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Interstate prides itself on excellent customer service and a positive company culture on all levels. It's been a pleasure to work with the professional staff on a daily basis over the last few years. Its evident the company values long lasting partnerships with its employees and customers. When my company needed cleaning services in the worst months of the pandemic, Interstate was extremely helpful and responsive in getting our facility back to operating in a safe and efficient manner.
