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Great Blue Heron LLC

Seamless Metal Gutters Installation, Seamless Metal Gutters Repair, Metal Siding: Repair or Partially Replacement,

About us

My name is Mykhaylo (Mike) Mykulyn. I live in Downers Grove and next year will be 25 years since I started working as a contractor. For this quarter of the century I gained a great amount of experience in exterior renovation and general contracting. I have installed every possible kind of window and door that was produced in North America and recently I even installed windows imported from Poland and Germany. I have done work for many custom builders in both residential and commercial areas and those jobs were from small caulking work to major custom facades. Our crew is small but the work is impeccable. I also have great experience in all kinds of siding: steel, vinyl, hardy, smart side and aluminum composite panels. I own a seamless siding and gutter machine that helps me keep prices reasonable. We do 24 hr. emergency service in case you need help on the weekend or in the evening. We also do glass replacement, roof and siding repairs and aluminum capping.

Business highlights

Se habla espanol
26 years of experience

Services we offer

Copper Work , Aluminum soffit/fascia and Gutters, Windows- Installation and Repair

Amenities

Free Estimates

Yes

Warranties

Yes

Reviews
5.010 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
100%
4
0%
3
0%
2
0%
1
0%

Filter reviews by service

Showing 1-10 of 10 reviews
Dan S.
May 2026
5.0
Vinyl Siding Repair or Partially Replace
They were professional, quick and did a great job and very reasonable price

Ruth K.
May 2026
5.0
Seamless Metal Gutters Repair
Mike also repaired/replaced and painted rotting wood, replaced a light fixture, and fixed a door lock to work in a house that’s settling. I found him very knowledgeable, efficient, competent, excellent at listening to my concerns and explaining options clearly. It was very easy to coordinate plans and timing. He was reasonably priced. He’s also a pleasant guy! I was very, very pleased and impressed by the experience and the results.

Jamie N.
May 2026
5.0
Seamless Metal Gutters Repair
$750
Just a great experience throughout the project. I would highly suggest working with Great Blue Heron. Great communication throughout the project and straightforward.

Mar P.
Apr 2026
5.0
Seamless Metal Gutters Installation
$2,300
Great work great service Mike was very easy to work with. Always in communication we me about the job

David F.
Oct 2025
5.0
Vinyl Siding Repair or Partially Replace
Truly professional. Craftsmanship was excellent. Went the extra mile to make sure the job was done with quality materials, and to last. Highly recommend!!!

Diane B.
Jul 2025
5.0
Vinyl Siding Repair or Partially Replace
Mike did a great job with siding on my home, he was professional, timely and efficient. I would recommend great blue Heron LLC.

Garrett P.
Aug 2024
5.0
Yes, I recommend this pro
I hired Mike to replace a third floor window that had cracked from the low temperatures this past winter. He was professional, fast, and clean. Highly recommend him for other window work and I would not hesitate to hire him again.

Jolanta L.
Aug 2024
5.0
Yes, I recommend this pro
$7,000
We hired Mike first to do our soffit, fascia and gutters at our home in Indiana in 2018. After that he did our Chicago house- aluminum work and windows. And finally recently he finished soffit/fascia/gutters and windows capping at our current home in Orland Park. Happy with workmanship!!! Highly recommend him and his crew!

Peggy G.
Jul 2018
5.0
Seamless Metal Gutters Installation
Yes, I recommend this pro
Mike called me immediately. Gave me a fair quote and did a great job in a timely manner. Seamless gutters and downspouts custom made on site. Best of all, my gutters look and work great.

Joe R.
Jun 2018
5.0
Yes, I recommend this pro
Mike at Gentek was a true professional. He came out on time, honored his original estimate and did high quality work. I would definitely use Mike again for exterior work on my home.

Licensing

State Contractor License Requirements

All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our Find Licensing Requirements page.

*Contact business to see additional licenses.

FAQ

Great Blue Heron LLC is currently rated 5.0 overall out of 5.

Monday: 7:00 AM - 5:00 PM Tuesday: 7:00 AM - 5:00 PM Wednesday: 7:00 AM - 5:00 PM Thursday: 7:00 AM - 5:00 PM Friday: 7:00 AM - 5:00 PM Saturday: Closed Sunday: Closed

Yes, Great Blue Heron LLC offers free project estimates.

No, Great Blue Heron LLC does not offer eco-friendly accreditations.

No, Great Blue Heron LLC does not offer emergency services.

Yes, Great Blue Heron LLC offers warranties.