The Best Insulation Contractors in Union, IL

Compare the highest-rated insulation professionals in Union, Illinois. All contractors are licensed, insured, and verified through our rigorous screening process.

#1

Allstar Insulation, Inc.

4.8
(180 reviews)
Verified

A highly-rated, family-owned and operated insulation specialist serving Northern Illinois, including McHenry County. They are known for their professional crews, detailed energy audits, and expertise in both spray foam and blown-in insulation. They emphasize home performance and energy efficiency.

12418 Commerce Dr, Caledonia, IL 61011 (This is their main office, but they serve Union.)

Specialties & Features

Spray foam insulation
Attic insulation upgrades
Energy efficiency audits

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#2

Koala Insulation of Northern Fox Valley

4.9
(120 reviews)
Verified

Part of a national brand with a strong local franchise, Koala is recognized for its commitment to customer education and environmentally friendly insulation solutions. They offer free evaluations and specialize in insulation removal and air sealing to improve overall home efficiency.

They service Union from their central location in the Fox Valley area.

Specialties & Features

Insulation removal and replacement
Air sealing services
Blown-in insulation installation

Business Information

Years in Business:5 years
Licensed:Yes
Insured:Yes
#3

A+ Insulation Inc.

4.7
(90 reviews)
Verified

A well-established local contractor with a strong focus on residential insulation and garage insulation. They receive consistent praise for their clean work, punctuality, and knowledge of local building codes and utility rebate programs.

1121 Alexander Ct, Woodstock, IL 60098 (Serves all of McHenry County, including Union.)

Specialties & Features

Basement and crawl space insulation
Wall insulation services
Blown-in cellulose insulation

Business Information

Years in Business:20 years
Licensed:Yes
Insured:Yes

Why These Are the Top Insulation Contractors in Union

** The insulation market for homeowners in Union, Illinois, is characterized by high-quality service providers primarily based in neighboring towns like Woodstock, Huntley, and the broader Fox Valley/Northern Illinois region. As a rural and suburban community with older homes and harsh Midwest winters, there is strong demand for energy efficiency upgrades. The competition is moderate but consists of established, reputable contractors rather than a high volume of fly-by-night operators. Typical pricing is competitive with the greater Chicagoland area but can be slightly lower than the immediate city suburbs. Homeowners should expect a premium for spray foam installation compared to traditional fiberglass or cellulose blown-in services. Most reputable companies offer free, detailed estimates and are knowledgeable about ComEd and Nicor Gas energy efficiency rebates, which can significantly offset project costs. The overall market quality is high, with several providers holding certifications from manufacturers (like Owens Corning) and industry groups (BPI), indicating a professional and technically proficient local industry.

High Ratings

4.7+ star average from verified customer reviews

Fully Licensed

All contractors are properly licensed and insured

Proven Experience

10+ years average experience in the industry

Local Experts

Familiar with Union regulations and climate

Frequently Asked Questions About Insulation in Union

Get answers to common questions about insulation services in Union, Illinois.

1What is the recommended insulation level (R-Value) for attics in Union, Illinois homes?

For our climate zone (Zone 5), the U.S. Department of Energy recommends an attic insulation level of R-49 to R-60. This high level is crucial to combat Union's cold winters and humid summers, ensuring energy efficiency and preventing ice dams. Many older homes in McHenry County have insufficient insulation, so an assessment by a local professional is the best first step.

2How much does it typically cost to insulate an older home in Union, and are there any local rebates?

Costs vary by home size and material, but insulating an attic in a typical Union home can range from $1,500 to $3,500. For whole-house projects like adding blown-in wall insulation, costs can be higher. Illinois homeowners should check for current utility rebates from providers like ComEd or Nicor Gas, and the federal tax credit for insulation (up to 30% of cost, up to $1,200) often applies.

3When is the best time of year to schedule insulation work in Union, IL?

Fall is the ideal time, as it allows you to prepare your home for winter heating. However, insulation can be installed year-round. Scheduling in late summer or early fall is recommended, as local contractors' schedules fill up quickly before the cold sets in. Avoid the peak of winter if possible, as attic work can temporarily affect your home's heat retention.

4What should I look for when choosing an insulation contractor in McHenry County?

Always verify the contractor is licensed, insured, and has strong local references. Look for experience with homes of similar age and construction common in Union. A reputable provider will perform a thorough energy audit or assessment first, explain your options (like spray foam vs. cellulose), and provide a detailed written estimate that includes the specific R-values to be achieved.

5I have an old house with drafty walls. Is adding insulation worth it, and will it cause moisture problems?

Absolutely, it's one of the best returns on investment for comfort and energy savings. However, in Union's climate, proper moisture management is critical. A qualified contractor will assess your home's vapor barrier needs to prevent condensation within walls, which is a common concern in our region with its significant temperature swings and humidity. Techniques like dense-pack cellulose are often used to address this in existing walls.