Skip to main content

We use cookies to give users the best content and online experience. By clicking “Accept All Cookies”, you agree to allow us to use all cookies. Visit our Privacy Policy to learn more.

Manage Cookies
Find local businesses
Share
Business Profile

Heating and Air Conditioning

Xcell Williams Heating and Cooling
BBB accredited business seal
BBB Accredited BusinessA+Rated by BBB
Visit Website(314) 395-9355Email BusinessWrite a Review

About

Overview

Xcell Williams Heating and Cooling

3901 Shirley Ave

Saint Louis, MO 63121-3720

View Service Area
See Hours
Operating Hours
Open 24 Hours
Open 24 Hours
Open 24 Hours
Open 24 Hours
Open 24 Hours
Open 24 Hours
Open 24 Hours

BBB Accreditation & Rating

Xcell Williams Heating and Cooling is BBB Accredited.

BBB accredited business seal

This business has committed to upholding the BBB Standards for Trust.

Why choose a BBB Accredited Business?

Join Trusted Businesses

Become BBB Accredited

About This Business

Xcell Williams Heating & Cooling, LLC provides HVAC services, including air conditioning installation and maintenance, furnace installation and maintenance, and full HVAC system installation across residential and commercial settings. The company assists clients through system condition assessments, equipment selection, and deployment of service crews for installation or repairs.

BBB Accredited Since: 5/19/2026

Years in Business: 13

Products and Services

Air conditioning installation: Assessment of existing cooling systems and installation of new AC units for residential or commercial properties.
Air conditioning maintenance and repair: Routine system checks, troubleshooting, and servicing of AC components to sustain performance and comfort.
Furnace installation: Evaluation of heating needs and installation of replacement furnaces suited to home or business environments.
Furnace maintenance and repair: Inspection, cleaning, and repair of heating systems to ensure operational stability.
HVAC system installation and upkeep: Full HVAC system setup and routine servicing, including heating and cooling system integration.

Business Details

Local BBB:
BBB Serving Greater Missouri & Southern Illinois
BBB File Opened:
2/15/2013
Business Started:
2/15/2013
Business Started Locally:
2/15/2013
Business Incorporated:
5/7/2019
Type of Entity:
Corporation
Alternate Names:
Mechanical Services Group Inc
Business Management:
Ms. Sara Helwig, Operations Manager
Julie Chilton, President

Additional Contact Information

Principal Contacts
Julie Chilton, President
Customer Contacts
Ms. Sara Helwig, Operations Manager
Fax numbers
Primary Fax: (314) 395-9357
Additional Phone Numbers
Other Phone: (314) 931-5355
Additional Email Addresses
Primary: Email this Business
Social Media

Additional Information

Business Categories
Heating and Air Conditioning, Air Conditioning Contractors, Air Conditioning Repair, Residential Air Conditioning Contractors, Heating Contractors, Furnace Repair, Heating System Repair, Commercial Air Conditioning Contractors, Air Cleaning Equipment, Furnace Cleaning, Air Quality Services, Air Conditioning Equipment, Heating Equipment, Furnace Sales, Heating System Cleaning

BBB Business Profiles are provided solely to assist you in exercising your own best judgment. BBB does not verify the accuracy of information provided by third parties, and does not guarantee the accuracy of any information in Business Profiles. As a matter of policy, BBB does not endorse any product, service, or business. Businesses are under no obligation to seek BBB accreditation, and some businesses are not accredited because they have not sought BBB accreditation.

When considering complaint information, please consider the company's size and volume of transactions. Note that the nature of complaints and a company’s responses to them are often more important than the number of complaints. BBB Business Profiles generally cover a three-year reporting period.