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Insulation Contractors in Chicago, Illinois

We aren’t called the Windy City for nothing! Chicago’s location on Lake Michigan not only makes it a beautiful place to live, but it also means icy, windy weather in the colder months. Poor quality insulation can not only leave your home or business chilly, but less protected from the elements.  At ThermaSeal / Lakeside Insulation, our experts can install all types of insulation throughout your home or commercial space.

Get a FREE QUOTE in Chicago today by filling out the form to the side or giving us a call at 800-836-2535!

Home Insulation Contractors in Chicago, Illinois

When you think of insulation you may think of it only as a way to keep you warm in the summer and cool in the winter, but that’s not all! The proper Chicago insulation installation will also make your home more energy-efficient—and it more than pays for itself. You’d be surprised how much money the right insulation can save you on yearly energy costs!

From lower energy bills to potential increased resale value and improved AC and furnace efficiency, a well-insulated home offers many benefits!

Commercial Insulation in Chicago, Illinois

As a business owner, you probably want to increase efficiency and lower overheads. When was the last time you looked at your insulation? Poor or old insulation could be compromising the energy-efficiency of your building, costing you money! ThermaSeal / Lakeside Insulation has been insulating office and commercial buildings in the Chicago, Illinois area and has the expertise and experience to recommend the right material and install it correctly so you can start saving.

Our Chicago insulation contractors can insulate your:

  • Attic
  • Walls
  • Basement
  • Crawl space

We use insulation materials to meet every need:

  • Fiberglass
  • Cellulose
  • Spray foam
  • Radiant barrier


In Chicago, there are a few areas of your home you need to pay special attention to when it comes to insulation. If you don’t have one of these areas insulated, it’s time to call ThermaSeal / Lakeside Insulation!

Attic Insulation

Your attic is one of the best places to insulate, as it is one of the biggest culprits when it comes to home energy loss. Warm air rises, and if your attic isn’t insulated – or doesn’t have enough insulation – all that heat will escape right out, leaving your home a lot less comfortable in the winter. During the summer, an attic that isn’t insulated is much hotter, which makes the rest of your home a lot more toasty as well!

Learn more about our attic insulation in Chicago.

Wall Insulation

Wall insulation provides not only decreased heating and cooling costs and a more comfortable home, but also superior soundproofing. If you’ve ever been in a home that doesn’t have wall insulation, you may have noticed how loud traffic and other outside noises seem!

Learn more about our wall insulation in Chicago.

Basement Insulation

The lowest level of your home offers a lot of potential for energy savings – but not if it isn’t well insulated! Even if your basement is unfinished and you don’t go down there a lot, don’t overlook it when it comes time to re-insulate. Basement insulation can actually save you up to $250 a year!

Learn more about our basement insulation in Chicago.

Crawl Space Insulation

For a space so small, your crawl space can have a significant impact on your energy costs. If you don’t insulate your crawl space, your home can be subjected to all kinds of moisture problems – and skyrocketing energy bills! Whether your house has a ventilated or unventilated crawl space, our insulation contractors can help.

Learn more about our crawl space insulation in Chicago.


Fiberglass Insulation

Fiberglass is one of the most popular and cost-effective types of insulation material; it is also one of the most effective products at stopping heat transfer and can be installed anywhere in your home, from basement ceilings to walls and around ductwork.

Learn more about fiberglass insulation.

Cellulose Insulation

One of the most environmentally friendly insulation products, cellulose consists of mostly recycled materials. It’s similar to fiberglass insulation and provides good sound control and can work well in many areas of your home.

Learn more about cellulose insulation.

Spray Foam Insulation

Spray foam insulation is ideal for those small spaces, like the tiny cracks, gaps and crevices in your home’s envelope where air leaks in and out. When stopping air infiltration is critical, spray foam insulation is one of the best solutions!

Learn more about spray foam insulation.

Best Insulation Contractors in Chicago, Illinois

No matter if you live in the North Side or the far Southeast of Chicago, we’re the insulation company in Chicago you can trust. We’ll install your insulation right the first time to make sure your energy savings are maximized!

Contact us online or by phone at 800-836-2535 to get a FREE QUOTE in Chicago!

Products We Install

Our team installs both batt and blown-in fiberglass insulation.


Help prevent mold and excessive moisture infiltration in homes you build with our waterproofing services.

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