What We Can Help You With
Our heating specialists are available throughout Mokena . Whether it’s a loud furnace or one that won’t work, we’re just a call away.
Furnace Repair Furnace Replacement Furnace MaintenanceConditioners
When your air conditioner calls it quits, turn to our local HVAC company. Our cooling specialists work throughout the South Chicago Suburbs.
AC Repair AC Replacement AC MaintenanceEquipment
Our team knows how to make your air cleaner and easier to breathe. Reach out for help in the Tinley Park or Orland Park area.
Humidifiers Duct Cleaning Filter StorePumps
Heat pumps work hard year-round. So do our specialists. Have a reversing valve problem? Call any time to schedule.
Heat Pump Repair Heat Pump Replacement Heat Pump MaintenanceMini-Splits
We work on ductless mini-splits throughout Tinley Park and Mokena .
Mini-Split ServiceTwo Generations
of Keeping Neighbors Comfortable
HVAC isn’t new to the O’Sullivan family. Jeff O’Sullivan founded Comfortmate Bremen Service after decades of experience in the industry. Today his son Scott O’Sullivan carries the family business forward as its second-generation owner.
The company has changed over the years, extending from its new-construction roots into residential heating and cooling. While what we offer has changed, the way we treat people hasn’t.
Scott and the team believe you should know what’s happening with your furnace and what your options are before you spend your money. We’ll explain the problem, answer your questions, and help you weigh the choices. From there, you decide what’s right for your home.
Why Choose Us
- Over 40 years of HVAC experience
- Local knowledge born from years in your backyard
- Second-generation and family owned
- Flat-rate pricing on every job
- Energy-efficiency specialists
0% Financing Options Available
For those with qualified credit, we offer interest-free financing options. This makes it easier to get the furnace upgrade or repair you need.
Apply for FinancingWe’re Big Fans of American Standard
We install American Standard equipment because of its focus on dependable performance and energy efficiency.
Explore Equipment OptionsVisit the Filter Store
We make it easy to get the HVAC filters you need in the South Chicago Suburbs.
Browse the SelectionJoin Our Maintenance Plan
Want to get service discounts and lessen the likelihood of furnace breakdowns? Consider signing up for our maintenance plans.
Explore the BenefitsOur Service Process
Whether your AC isn’t cooling or your furnace is grinding, the process starts the same. Our Mokena HVAC technicians figure out what’s wrong before talking next steps. From there, we’ll walk you through what we found and what needs to happen next.
- 1.
You Reach Out to Us
Call (815) 464-5288 or reach out online the second you notice your furnace or heat pump isn’t working right. We’ll schedule your service visit and figure out what’s been going on.
- 2.
Our Uniformed Technician Arrives
Your technician will take a look at the equipment and talk with you about the problem you’ve been experiencing. They will then take a thorough look at your heat pump, furnace, or AC unit. We aim to pinpoint the true problem the first time, every time.
- 3.
Diagnosis Completed
Once we identify the problem, we’ll explain what we found and go over the available options. You’ll know what the issue is and what we recommend before things go forward.
- 4.
We Fix the Problem
After you approve the HVAC work, we’ll make the repair and address the issue. Our goal is simple. We want you to end the visit comfortable that we’ve done all we can.
- 5.
Final Confirmation
Before we wrap up, we make sure the system is operating as it should and that you know what was done. If you have questions, this is the time to ask them.
We Give You Options. You Make the Call.
Most HVAC problems in the South Chicago Suburbs aren’t as simple as “fix it” or “replace it.” The age of the equipment, repair cost, and how long you plan to stay in the home can all change what makes sense. We focus on making those shades of grey more clear. With Comfortmate Bremen Service, you always get options and an explanation before work starts.
We can help you weigh options such as:
Replacing your furnace’s heat exchanger or swapping out the unit
Whether a smart thermostat or standard one is a better fit
Simply getting HVAC maintenance done or fixing a refrigerant leak during the call
Choosing between different efficiency and comfort levels when installing something new
Here for the South Chicago Suburbs
This area is made up of established suburbs, growing family communities, and plenty of homeowners who plan to stay put. That gives us experience with everything from decades-old homes with aging HVAC equipment to newer construction and modern high-efficiency systems. Our team understands the stress our area’s blistering summers and bone-chilling winters place on HVAC equipment.
- Alsip
- Blue Island
- Burr Ridge
- Calumet City
- Calumet Park
- Chicago Heights
- Country Club Hills
- Crest Hill
- Crestwood
- Evergreen Park
- Flossmoor
- Frankfort
- Glenwood
- Hazel Crest
- Hickory Hills
- Homer Glen
- Homewood
- Joliet
- Justice
- Lansing
- Lockport
- Lynwood
- Manhattan
- Markham
- Matteson
- Midlothian
- Mokena
- Monee
- New Lenox
- Oak Forest
- Oak Lawn
- Olympia Fields
- Orland Hills
- Orland Park
- Palos Heights
- Palos Hills
- Palos Park
- Park Forest
- Peotone
- Richton Park
- Sauk Village
- Shorewood
- South Chicago Heights
- South Holland
- Steger
- Thornton
- Tinley Park
- University Park
- Willow Springs
- Worth