Every Project is Different. Every Client is Special.
Conquest Building Services, Inc. is a privately owned and operated commercial cleaning company serving the Chicagoland area. With more than 20 years of experience, we specialize in providing reliable janitorial and building maintenance services for a wide range of facilities—including office buildings, medical and surgical offices, industrial plants, daycare centers, fitness centers, schools, retail stores, apartment complexes, and banks.
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Our highly trained team combines industry expertise with proven cleaning methods to deliver the highest standards of cleanliness, safety, and care for every facility we maintain.
High Standards with
DECADES OF EXPERIENCE
More About Us
NEW! ROBOTIC CLEANING
Discover how autonomous robotic solutions can enhance your facility’s cleaning efficiency, consistency, and overall performance. These systems are ideal for large spaces that require frequent and detailed floor maintenance.
Call (847) 901-3555 Today For a FREE Consultation & Quote!
THE CONQUEST ADVANTAGE
Flexibility, Customization & Innovation
Each project is evaluated individually, allowing services to be tailored to your facility’s unique needs. Using the latest equipment and technology, Conquest delivers efficient, modern cleaning solutions.
Real Pricing
An in-person walk-through is always included. A dedicated team member takes time to understand your goals, challenges, and priorities—ensuring our service exceeds your expectations and fits within your budget.
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Quality Control & Satisfaction
Conquest consistently delivers results that meet or exceed specifications while maintaining strict safety and security protocols. We conduct ongoing education, audits, and performance testing to ensure continual improvement and client satisfaction.
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Dependable Extensive Training
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Quality Assurance Management
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Monthly Quality Audits
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Safety Inspections
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Surveys
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Customer Feedback
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Employees
Our technicians are fully trained and certified through IICRC for carpet and floor care, OSHA for safety compliance, and GBAC for medical cleaning and disinfection. Each employee is equipped with the skills and knowledge required to maintain the highest professional standards.
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Fully Trained & Certified Personnel!
QUALITY SERVICES WE PROVIDE
COMMERCIAL, JANITORIAL & MAINTENANCE
OUR GUIDING PRINCIPLES
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Regular Nightly Janitorial Services
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Day Porter Services
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Floor Care Services
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Carpet Care Services
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Disinfection Services
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Construction Clean-Up Services
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Light Maintenance Services
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Residential Complex Services
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24 Hour Emergency Services
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Specialty Services
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Office Buildings
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Healthcare Facilities
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Industrial Facilities
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Research Laboratories
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Educational Centers
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Retail Spaces & Shops
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Banks
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Schools
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Daycare Centers
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Apartment Complexes
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Hotels
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Quality & Consistency — Deliver outstanding results with precision and reliability.
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Excellence — Set and uphold the highest standards across every aspect of our work.
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Professionalism — Represent our company and clients with integrity, respect, and care.
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Customer Commitment — Build lasting partnerships by protecting and prioritizing every client relationship.
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Integrity — Operate with honesty, transparency, and accountability in all that we do.
GET THE QUALITY CLEAN YOUR FACILITY DESERVES!
Call (847) 901-3555 For A Consultation
CERTIFICATIONS & MEMBERSHIPS
We are proud to be a member of the BSCAI, ISSA, and CAA. Certified by IICRC and GBAC ensures that we provide the highest level of cleaning services and stay up to date with new innovations and cleaning standards in the industry.
Certified Firm - IICRC
Member of ISSA
Global Biorisk Advisory Council (GBAC) Member of ISSA
Member of Building Service Contractors Association International
Member of Chicagoland Apartment Association
Member of Green Oaks, Libertyville, Mundelein, Vernon Hills (GLMV) Chamber of Commerce
What Our
CLIENTS ARE
SAYING
"Conquest Building Services just finished a complete cleaning of our offices and warehouse. They did an excellent job. Everything now sparkles! Their service was thorough and they were easy to work with. Well done, Conquest!"
Rob B.
RAH Owner