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17 Years
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Emergency
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Your Trusted HVAC Solutions in Grayslake, IL
Tom's Mechanical Systems, established in September 2009, is a family-owned HVAC business serving Lake County, Illinois, Chicago, and lower Wisconsin. Our team, led by Tom Brust Sr. and joined by his son Tommy, prioritizes client education, explaining technical processes and emphasizing preventive maintenance to avoid costly issues. With decades of combined experience, we deliver competitive pricing and personalized service, earning referrals from satisfied clients across residential and commercial sectors.

Our 24/7 emergency response and free estimates demonstrate our commitment to accessibility and customer satisfaction. We specialize in heating and air conditioning sales, installation, and repair, alongside sump pumps, humidifiers, and water heaters, ensuring comprehensive climate control solutions for every client.
Services
HVAC Sales AC Tune-Up Furnace Tune-Up Sump Pumps Water Heaters 24/7 Emergency Service Thermostat Installation Humidifier Services Gas Leak Detection Ventilation Systems
Details
  • Year established: 2009
Highlights and features
  • We offer 24/7 emergency HVAC services for urgent needs.
  • Our team provides free estimates for all projects.
  • We specialize in residential and commercial climate control systems.
  • Our family-owned business prioritizes personalized client education.
  • We guarantee competitive pricing on all HVAC services.
Services
HVAC Sales
We offer comprehensive HVAC system sales for residential and commercial properties. Our experts help clients select energy-efficient heating and cooling solutions tailored to their specific needs. With access to top industry brands, we ensure optimal comfort and performance for every space.
AC Tune-Up
Our AC maintenance service includes 12-point system inspections to optimize performance. Technicians check refrigerant levels, clean coils, and test electrical components to ensure efficient summer cooling. Regular tune-ups extend equipment lifespan and prevent unexpected breakdowns.
Furnace Tune-Up
We provide thorough furnace maintenance with safety checks and performance optimization. Our 14-point inspection covers burner cleaning, thermostat calibration, and venting checks. Preventive maintenance improves efficiency and ensures reliable winter heating for residential and commercial clients.
Sump Pumps
Our sump pump services include installation, repair, and maintenance of basement waterproofing systems. We offer primary and backup pump solutions to protect properties from water damage. Regular inspections ensure proper operation during heavy rainfall or flooding events.
Water Heaters
We install and service residential and commercial water heating systems. Our technicians handle traditional tank units and energy-efficient tankless models. Services include annual maintenance, leak repairs, and emergency replacement to ensure continuous hot water supply.
People
Tom Brust Sr
Owner
HVAC professional with 15+ years of experience, established TMS in 2009. Specializes in residential/commercial climate control systems and preventive maintenance education.
Tommy Brust
Service Technician
Trained HVAC technician working alongside his father. Focuses on client communication and hands-on system maintenance, bringing fresh perspective to the family business.
Questions
What HVAC services do you offer?
We provide complete heating and air conditioning services including sales, installation, maintenance, and emergency repairs for residential and commercial clients.
Do you service areas outside Lake County?
While our primary service area is Lake County, we also serve Chicago and lower Wisconsin regions for residential and commercial HVAC needs.
Are emergency services available after hours?
Yes, we offer 24/7 emergency HVAC services for urgent heating and cooling issues with no additional after-hours charges.
What maintenance plans do you offer?
We recommend bi-annual maintenance for optimal system performance, offering discounted seasonal tune-ups for AC and furnace systems to prevent major issues.
Do you provide free estimates?
Yes, we offer free, no-obligation estimates for all new installations and major repair projects, with transparent pricing and detailed service explanations.