Conquest Building Services, Inc. is a privately owned and operated commercial janitorial and building service company. We provide a wide portfolio of commercial cleaning services in the Chicagoland area for different facilities including: office buildings, physicians offices, manufacturing plants, retail stores and banks.

The Conquest team has over 20 years of experience in the commercial janitorial and building service industries. With extensive training and experience with office buildings, industrial facilities, daycare centers, fitness centers and healthcare facilities including medical offices and surgical offices, we can assure that your place will receive the highest cleaning standard. 

About Us

Our Vision


To become the premier provider of commercial cleaning and offer the highest and most comprehensive range of services through innovative strategies, the technological changes that benefit our employees and clients and a team of quality focused individuals dedicated to exceeding expectations.   

20 Years of Experience


Our team brings you over 20 years of experience in the commercial janitorial and building services industries.

We exceed expectations.

Our Guarantee


Conquest guarantees to complete all of its regularly scheduled cleaning commitments
on time.

Conquest also guarantees to respond to, and promptly resolve, any specific service issues
in a quick and timely manner.

Our Services


  • Janitorial (Day and night)
  • Medical Office Cleaning
  • Specialty Services
  • Floor and Carpet Cleaning
  • Construction Cleaning
  • 24 Hour Emergency Service
  • Green Cleaning
  • Recycle Program
  • Misc Services
  • One time special project service includes floor refinish and carpet shampoo

Commercial, Janitorial & Maintenance Services For:

  • Office buildings
  • Industrial facilities
  • Healthcare facilities
  • Research laboratories
  • Daycare centers
  • Banks
  • Retail stores
  • Nightclubs

Our Guiding Principles

  • INTEGRITY to act with honesty, openness and do what we say we will do
  • Set the standards for EXCELLENCE
  • PROTECT our relationship with the customer at all costs
  • Maintain a PROFESSIONAL IMAGE at all times


Certified Firm - IICRC


Member of ISSA

Contact Us

Please fill out the form below and we'll reply promptly. Thank you.

Conquest Building Services, Inc.

(847) 901-3555