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BBB Accredited Business since

Controlled Environmental Systems, Inc.

Phone: (708) 460-6333 Fax: (708) 460-6377 16308 107th Ave # 12, Orland Park, IL 60467

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Controlled Environmental Systems is an air conditioning contractor which installs, maintains, and repairs air conditioning and chilling systems for mobile, interim, and permanent medical imaging sites. Located in Orland Park, IL, this company serves the southern suburbs of Chicago, including Homer Glen, Orland Hills, Tinley Park, Oak Forest, Midlothian, Palos Heights, Palos Hills, Crestwood, Alsip, Mokena, Frankfort Square, New Lenox, Lemont, Romeoville, Bolingbrook, Joliet, Hickory Hills, Markham, Hazel Crest, Homewood, Flossmoor, Frankfort, Justice, Burr Ridge, Darien, Lockport, Crest Hill, Naperville, Ingalls Park, Blue Island, Countryside, and Hodgkins. The company has been in business since 1987 and provides service 24 hours a day, seven days a week. The company is fully insured and bonded and has fully trained personnel to service all of their work sites.

This company designs, installs, and repairs air conditioning and medical chillers for medical imaging systems, including MRI, CT, and PET sites. This can include mobile, interim, and permanent imaging sites, such as those in hospitals, laboratories, medical offices, and mobile imaging clinics. Services include system evaluation, energy efficient design, personnel training, project management, workmanship services, installation services, and repair services. Service agreements are available to ensure that air conditioning and medical chiller equipment continues working at optimum conditions all throughout its service time, as downtime during operating times can result in costly waits and lost revenue.

Visit the website for Controlled Environmental Systems to learn more about their services, read about air conditioning and medical chillers, and contact the company to request their services.

BBB Accreditation

A BBB Accredited Business since

BBB has determined that Controlled Environmental Systems, Inc. meets BBB accreditation standards, which include a commitment to make a good faith effort to resolve any consumer complaints. BBB Accredited Businesses pay a fee for accreditation review/monitoring and for support of BBB services to the public.

BBB accreditation does not mean that the business' products or services have been evaluated or endorsed by BBB, or that BBB has made a determination as to the business' product quality or competency in performing services.

Reason for Rating

BBB rating is based on 13 factors. Get the details about the factors considered.

Factors that raised the rating for Controlled Environmental Systems, Inc. include:

  • Length of time business has been operating
  • No complaints filed with BBB

Customer Complaints Summary

0 complaints closed with BBB in last 3 years | 0 closed in last 12 months
Complaint Type Total Closed Complaints
Advertising/Sales Issues 0
Billing/Collection Issues 0
Delivery Issues 0
Guarantee/Warranty Issues 0
Problems with Product/Service 0
Total Closed Complaints 0

Customer Reviews Summary Read customer reviews

0 Customer Reviews on Controlled Environmental Systems, Inc.
Customer Experience Total Customer Reviews
Positive Experience 0
Neutral Experience 0
Negative Experience 0
Total Customer Reviews 0

Additional Information

BBB file opened: September 12, 2007 Business started: 08/01/1987 Business started locally: 08/01/1987 Business incorporated 04/04/1989 in IL
Type of Entity


Business Management
Ms. Carol Simadis, Owner Mr. Chris Simadis, Vice President
Contact Information
Principal: Ms. Carol Simadis, Owner
Customer Contact: Mr. Chris Simadis, Vice President
Business Category

Air conditioning & Heating Contractors - Commercial Hydronic Heating Air Conditioning Repair Heating Equipment & Systems Cleaning & Repair Air Conditioning Contractors & Systems Boilers - Repair & Cleaning Heating Contractors Heating & Air Conditioning Plumbing, Heating, and Air-Conditioning Contractors (NAICS: 238220)


BBB Customer Review Rating plus BBB Rating Overview

BBB Customer Reviews Rating represents the customers opinions of the business. The Customer Review Rating is based on the number of positive, neutral and negative customer reviews posted that are calculated to produce a score.

Customer Review Experience Value
Positive Review 5 points per review
Neutral Review 3 points per review
Negative Review 1 point per review

BBB letter grades represent the BBB's opinion of the business. The BBB grade is based on BBB file information about the business. In some cases, a business' grade may be lowered if the BBB does not have sufficient information about the business despite BBB requests for that information from the business.

BBB Letter Grade Scale

BBB Rating Value
A+ 5
A 4.66
A- 4.33
B+ 4
B 3.66
B- 3.33
C+ 3
C 2.66
C- 2.33
D+ 2
D 1.66
D- 1.33
F 1
NR -----
Star Rating scale

  Average Score
5 stars 5.00
4.5 stars 4.50-4.99
4 stars 4.00-4.49
3.5 stars 3.50-3.99
3 stars 3.00-3.49
2.5 stars 2.50-2.99
2 stars 2.00-2.49
1.5 stars 1.50-1.99
1 star 0-1.49

BBB Customer Review Rating plus BBB Rating is not a guarantee of a business' reliability or performance, and BBB recommends that consumers consider a business' BBB Rating and Customer Review Rating in addition to all other available information about the business. If the BBB Rating is NR then only Customer Reviews are used for the Star Rating.