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Your Trusted Chicago Service Company & Contractor, Family Owned Since 1961

From home HVAC, electrical and plumbing services to mechanical and electrical contracting for your business, Althoff Industries is the company you’ll refer.

We’ve served Chicago and the Northwest suburbs for nearly 60 years under the same family ownership—a record not many service providers can claim. With two Chicago-area locations and true, local 24/7/365 customer service, we’re there when you need us. Communities served include Chicago, Crystal Lake, Arlington Heights, Elgin, Schaumburg, Aurora, Naperville, Woodstock, McHenry, Barrington, Oak Brook and surrounding areas.

For a simple clogged drain or the most complex construction project, hand it off to Althoff. Let us take you from problem to solution!


Call (815) 455-7000

Chicago Home Services

Your home is one of—if not the—biggest investments you’ll make in your lifetime. Investing in home services to keep it in tip-top shape makes good financial sense. Not to mention, it makes life in your home more enjoyable and stress-free!

For nearly 60 years, Althoff’s skilled technicians and knowledgeable, helpful customer service team have been making it easy to take good care of your Chicago home. We’re family owned and operated, and licensed, insured and bonded for your peace of mind. Our Satisfaction Guarantee and White Glove Customer Service make us the service company customers rely on and refer!

The Althoff Difference: White Glove Customer Service

Our office will call when they are on the way so you don’t have to wait at home (we understand you’re busy!) They’ll park our service truck (clearly marked with the Althoff name and logo) on the street within view of your home, not in the driveway. Our technicians will be easily to recognize in their clean uniforms and name badge as they greet you with a smile and a business card.

Our technicians never enter your home before asking permission and putting on shoe covers first. They set their tool bags on drop cloths to protect your floors. And, they clean up when they’re done with your service or repair.

We respect your time and your home, doing everything we can to make your service call both convenient and comfortable.

Save money, extend the life of your HVAC equipment, and enjoy convenient priority service all year long with an Althoff Membership Plan. You get two scheduled maintenance visits per year—one for your A/C unit and one for your furnace or boiler—plus a host of other benefits like discounts and equipment credits. Our multi-point tune-ups/inspections/cleanings keep your equipment running safely and efficiently (lower energy bills) and help prevent inconvenient breakdowns by catching potential issues early.

Home Service Plans

It’s our mission to help keep people comfortable through the coldest Chicago winters and hottest summers. Our HVAC services go beyond just repairs to keep your system running safely and efficiently all season long.

Althoff’s highly trained and licensed HVAC technicians can not only diagnose any HVAC problems, but provide recommendations on how to get the most from your system, save on energy costs and help prevent future issues. And if you do need a new HVAC system, we can recommend and install the system that will be the best fit for your comfort needs and budget. Our 2-Year Satisfaction Guarantee gives you the peace of mind that we stand behind our work and will take care of you.

Safety and efficiency are the driving forces behind our heating services. All of our furnace and boiler tune-ups/inspections include a draft check and combustion analysis—not all HVAC service companies do this. We do because it’s the only reliable way to assure the efficient and safe operation of your gas-fired appliance.

When we perform a heater repair or maintenance, we let you know about ways to boost efficiency, lower your energy bills and extend the life of your equipment. And if you need a new furnace or boiler, we’ll install a quality unit and make sure it’s sized correctly for your home.

Furnace Services Boiler Services

Our licensed HVAC technicians offer all the air conditioning services you need to keep you cool all summer long. Take advantage of our A/C maintenance packages and annual tune-ups to help keep your cooling bills down and prevent unexpected breakdowns in the heat of summer.

If your A/C unit malfunctions or stops working entirely, we understand that you need air conditioner repairs ASAP. Our reliable and highly trained A/C technicians can find and fix the problem fast, with as little stress as possible for you.

Do you need a new air conditioner? We offer expert cooling system installations and upgrades. Our Comfort Specialists will go over the options with you to find an energy efficient air conditioner that will meet or exceed your expectations.

Air Conditioning Services

An air quality system goes a long way in keeping the indoor air in your Chicago home comfortable and healthy. Do people in your home have allergies or asthma? Is the air so dry that static electricity and dry skin are part of your winter? Are your heating bills too high because the dry air feels colder? Our air quality specialists can recommend and install the best humidifier, air cleaner, filtration and/or purification system for your home and existing HVAC system.

Air Quality Services

Plumbing Repair, Service & Installations

When you need a plumbing repair, time is of the essence. Plumbing problems can disrupt your daily life and lead to water damage in your home. Trust the licensed Chicago plumbers from Althoff to diagnose and fix your plumbing problem fast—satisfaction guaranteed.

In addition to plumbing repair, we offer routine maintenance and inspections, as well as specialty plumbing services like sewer line rodding, camera inspections, sump pump service, and backflow certification and testing.

Have a plumbing project? Althoff is up for the job, big or small. From fixtures and faucets to complex projects like appliances, showers, baths and vanities, we’ll get it installed.

Plumbing Services

Water Heater Repair, Maintenance & Installation

From hot showers to clean dishes and laundry, we depend on our hot water heaters every day. If you have a water heater leak or the water isn’t heating, we understand how it can disrupt your life. Trust the expert plumbers at Althoff to diagnose and fix your water heater fast. If your water heater can’t be repaired, or you’ve decided it’s time for a more energy-efficient model to save on your energy bills, we can recommend and install a new water heater. We install and service both tankless and traditional tank style water heaters.

The best way to prevent inconvenient water heater problems and high energy bills is regular maintenance. Our annual water heater tune-up helps ensure safe operation, maintain efficiency, and extend the life of your unit.

Water Heater Services

Our licensed electricians have decades of experience installing, upgrading and replacing electrical fixtures, wires and panels. Indoors or out, we can handle all your electrical service needs from circuit breaker replacements and ceiling fans to wiring upgrades and lighting. We can even inspect and test your home's electrical system to ensure it is safe and up to code.

Electrical Services

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Chicago Mechanical, Electrical & Building Automation Contractor

Engineering, Construction, Commissioning & Maintenance

Althoff Industries has been keeping buildings healthy for nearly 60 years. We’re not just a vendor, but a true partner in helping you keep your business running safely, efficiently and cost-effectively.

Our engineers, facility management professionals and technicians are some of the best trained and brightest in the business, allowing us to offer services not every mechanical and electrical contractor can. We take pride in providing superior customer service and continually challenging the status quo. It’s an attitude we bring to every project:

  • Engineer a more cost effective solution
  • Find a less expensive way
  • Find a faster way
  • Eliminate excess capacity to lower energy consumption
  • Add capacity to make a system perform properly
  • Design with an eye on long-term ownership cost
  • Minimize ongoing maintenance costs

We offer service contract plans to cover entire facilities or individual systems including:

  • Building Automation Systems (BAS)
  • HVAC systems
  • Electrical systems
  • Mechanical systems
  • Process piping
  • Plumbing
  • Clean rooms

Our service contract customers always receive Priority Expediting for 24/7 emergency services.

Althoff Industries provides advanced building automation services to maximize efficiency and reduce energy consumption. We have designed, constructed, and automated facilities as diverse as hospitals, sports stadiums, office buildings and food processing plants.

We specialize in total system integration for virtually any mechanical, electrical, security, access, HVAC, daylight harvesting, and information network operating in a single facility, and can link multiple locations via the Web. Whether your project is an entirely new building, an addition or a facility re-engineering, Althoff is here to make it happen.

Building Automation Services

Are you concerned that the cost of becoming more energy efficient will outweigh the savings? Turn to Althoff. Our Facility Management Team will exceed your expectations with a streamlined energy savings plan that capitalizes on government grants and utility company rebates as well as reduced power consumption to deliver a positive ROI. Althoff offers the necessary mix of technical expertise and management, including LEED™-Accredited Professionals.

Energy Saving Services

Even well-designed and expertly maintained systems will experience degradation over time, leading to energy waste and reliability issues. Retro-commissioning is a systematic evaluation and improvement process that can result in energy savings, improved performance, reduced operating costs, improved occupant comfort, and many other documented benefits. Find out how an Althoff retro-commissioning could produce significant cost savings in your building.

Retro Commissioning Services

Althoff is the trusted choice of building owners, developers, engineers and architects across the greater Chicago area for quality HVAC installations. Our installations result in greater efficiency, improved occupant comfort and lower energy costs.

We offer installation, fabrication, maintenance/service contracts and 24/7 emergency service for a variety of systems. Whatever the application, our clients can depend on us to design and deliver high efficiency HVAC systems that deliver comfort all year round.

Commercial HVAC Services

Althoff Industries has been the plumbing contractor of choice for Chicago area building owners, businesses and developers since 1961. From leaky pipes and clogged drains all the way up to complete plumbing systems for hi-rise buildings, we have all of your commercial plumbing services covered. And because we know a plumbing problem can mean a loss of business, we of course offer 24/7/365 emergency service.

Commercial Plumbing Services

Althoff’s team of pipefitters, veteran estimators and project managers serves the specialized needs of the manufacturing, healthcare, food processing and industrial sectors. Capabilities include complete system design, layouts and planning, steam/hot/chilled water distribution, process piping systems, compressed air, natural gas, sanitizing process systems, refrigeration interface, process equipment ventilation, and central chiller/boiler plants. Find out how Althoff can take care of your piping project from planning to performance testing.

Piping Services

Not every HVAC contractor has the specialized engineering skills required for clean rooms. Althoff’s engineers have decades of experience in the design, installation and control of the heating, cooling and ventilation systems that power your clean room operation. They can develop a custom, compliant system to help maintain your clean room environment.

We are proud to offer cleanroom design, construction and commissioning as a turn-key service with single source accountability.

Clean Rooms

Althoff Industries is one of North America’s top athletic field heating systems firms, having installed systems for NFL, MLB and MLS game and practice fields. In addition to field heating system design and installation, we offer advanced drainage and aeration systems.

Field Heating

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