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  • Average homeowner rating star icon4.2
    Average homeowner rating
  • Verified reviews icon17
    Verified home building services reviews

Top-Rated Home builders in Marengo - Updated Nov 2026

Avatar for Icon Building Group
Icon Building Group
5.0(
15
)
Find a Custom Home Builder

Serving Marengo, IL and surrounding areas

Approved

In business since 2008

Free estimates

Warranties offered

"It was great to work with Icon Builders to building our dream home. They went out of their way to accommodate the completion of our home build in time for school. Their response times are great and the staff is truly personable. It was great working with Jenna, Natalia, Joe, Scott, Shawna and Charlie. I will recommend Icon to anyone looking to build a custom home."
Kitchen BEFORE
Kitchen BEFORE
Powder Room BEFORE
Living Room BEFORE
Loft BEFORE

+25

Avatar for T&K Builders LLC
T&K Builders LLC
4.2(
10
)
Find a Custom Home Builder

Serving Marengo, IL and surrounding areas

Approved

In business since 2024

Emergency services offered

Warranties offered

"T&K Builders LLC, Terry and his Team were the ultimate professional. What was promised was delivered and more. Terry and his Team explained all the steps being performed. There was no surprise when it came to the invoice. I would hire T&K Builders LLC, Terry and his Team again and again for any of my home improvement projects - large or small."
Mall Dr Shell remodel
70 neighbors recently requested a quote
Avatar for Prestige Home Construction, INC.
Prestige Home Construction, INC.
4.9(
9
)
Find a Custom Home BuilderFind a Modular Home Builder

Serving Marengo, IL and surrounding areas

In business since 2017

Free estimates

Emergency services offered

"I loved making one phone call and having them take care of the rest!! I had my gutters, siding, and roof all replaced hassle free. I was able to pick out what I wanted from the comfort of my home. Each crew came out and finished each job in 1 day! They cleaned up very well. Which was awesome since I have 4 small kids and 2 dogs who live outside! The owners actually came out as the house was being worked on and made sure everything was going as planned!"
Recommended by100%of homeowners
Avatar for Fogarty Home Improvement, LLC
Fogarty Home Improvement, LLC
4.9(
17
)
Shelter or Outbuilding - Build

Serving Marengo, IL and surrounding areas

In business since 2009

Free estimates

Warranties offered

"John and his team were fantastic. We were considering purchasing a home and found out it had a laundry list of city violations that would need to be corrected before we could move in. He and his team met with us on three separate occasions to walk through the property, look at the work that needed to be completed, and gave us several estimates for all the work. They were prompt, professional, and thorough, and took the time to answer all of our questions and create detailed estimates with different options for us. Unfortunately, it was just going to be too much money to fix the house and we ended up backing out of the purchase contract, but we will definitely call Fogarty Home Improvement first for any future need.
"
Front Door
Outdoor Room
Kitchen
Recommended by100%of homeowners
Avatar for GF Company
GF Company
4.6(
152
)
Shelter or Outbuilding - Build

Serving Marengo, IL and surrounding areas

In business since 1974

Free estimates

Credit card accepted

"In 2017, when I was looking to purchase a house in the Rockford area that was needing a full siding install I contacted GF Company in Belvidere. IL, who I found on Angie’s list and at that time GF Co had great reviews. Strangely enough these great reviews are no longer to be found on Angie’s List. It should also be noted there is a GF Siding in Cherry Valley. IL, this is Not the company that I did business with. Ariel Zmijewski (the owner) got me a quote quickly and I decided to purchase the house. A few months later in July 2017, I contacted Ariel again to discuss the finer points of the quote, the price was revised slightly and the Ariel mentioned that once a deposit was paid work could start 6-8 weeks later, but said the install would be finished before the cold weather arrived. I started creating a color layout and Ariel provided some feedback on what would work and not work. To this point I was very happy with progress. In September 2017 I paid a deposit of over $8k (about 44% of final price) and awaited updates for a start date. Nothing happened. In early March 2018 I contacted GF Co by phone stating that I had been very patient and they had had $8k as a deposit for the last 6 months and I had nothing to show for it. After a couple more calls and emails Ariel showed up with his foreman Mark and they said that work would start in the middle of the following week. Much to my surprise the work started on time. Over the course of the next 4 weeks Mark and his crew worked hard, only missing a few days due to bad weather, I even agreed to having some extra work done by the team, some wooden entrance steps that needed replacing for an additional $2.5k. By early May 2018 the job was finished the house looked great and I was very happy with the work and appearance and was getting compliments from neighbors too. The balance of owed of over $10k was paid with 48 hours of the work being finished. Again I was happy with work done, until… A few months after the install a TV cable box started having troubles. Cut a long story short the wall socket died because cable was suddenly defective, also the crew had moved the exterior cable input box and this didn’t help the issue. Comcast fixed it, but I now have an exterior cable showing and they had to drill through the siding. Then around Halloween 2018, less than six months after having the install completed, I noticed that a piece of siding (6ft approx.) had become detached underneath a window, trying to pop it back into place did not resolve the issue. After checking all the other exterior windows I noticed 1 other window was about to do the same thing. I called the GF Company main number and left a message with the receptionist for Ariel to contact me. No response. I called again a couple of times and left more messages still no response. In March 2019 siding problem under windows still Not fixed, I called GF Company again, no answer, and no voice mail. I called a couple more times on different days still no answer or voice mail. I then sent an email to the company and to my surprise I received a response from Ariel stating this was the first that he had heard of it. About a week later (3/26/19) he showed up at my house to view the problem. Ariel stated that he would get someone over to fix the problem, but would not give me a date or time. On 4/2/19 I emailed Ariel again asking for confirmation of a repair date ? Nothing but crickets… On 4/30/19, I sent another email to Ariel requesting that the repairs be completed before the end of May 2019, again no response. Quote / contract says: Customers will receive a Lifetime Warranty on Material and Workmanship Reported GF Company to Illinois BBB on 6/5/19."
Additional Photos
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+19

Recommended by93%of homeowners
Avatar for Castle Construction
Castle Construction
4.9(
9
)
Shelter or Outbuilding - Build

Serving Marengo, IL and surrounding areas

Free estimates

Credit card accepted

"Alex was here on time. Did a great job replacing the damaged column and secured it in place, as it apparently wasn't when the house was built. Cleaned up the mess and even sent me pictures of the progress."
Kitchen and Bath Remodeling Project
Remodeling - Kitchen & Bathroom Project
Decks and Porches Project
Landscaping Project
Kitchen and Bath Remodeling Project

+64

Recommended by100%of homeowners
Avatar for Mastercat Inc
Mastercat Inc
4.6(
187
)
Find a Custom Home BuilderFind a Modular Home Builder

Serving Marengo, IL and surrounding areas

In business since 2003

Free estimates

Emergency services offered

"Donnie and his team are excellent. They did a fantastic job fixing everything on time and at a very fair price. They were incredibly professional and went above and beyond the call of duty. Our house remodel presented a few hiccups. Donnie and his team figured out solutions to all the problems right away.
"
Additional Photos
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Recommended by96%of homeowners
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Home Building FAQs, answered by experts

Start by researching local contractors with experience in cottage construction. Ask for references, check licensing and insurance, and review completed projects. Compare multiple bids, making sure each includes the same scope of work. A good contractor will communicate clearly, provide a detailed contract, and ensure all work meets code and safety standards.

The early stages of building a house are harder than the later stages; laying the foundation and framing the house are two of the most challenging steps. However, it varies for everyone. Some people have difficulty installing HVAC, plumbing, and electricity, while others find it harder to plan the house and secure the necessary permits. 

Modular homes can be a great investment, especially for those who find the prices of stick-built real estate too high. Modular homes are usually much more affordable because they’re mass-manufactured and then assembled on-site or delivered mostly assembled. If they’re installed properly and by professionals, they can last for between 50 and 100 years, potentially making them an outstanding investment.

The most significant expense when building a barndominium is constructing the metal shell, which includes the roof, doors, and windows. Additional exterior components impacting the overall cost include metal siding and the concrete foundation.

No, a structural engineer is not the same as a builder. A structural engineer is an expert in all things related to the structural integrity of a building. The structural engineer is responsible for calculating the correct materials in terms of load-bearing capacity and overall structural safety. Structural engineers do not perform the actual building of the house or other structures. Rather, the builder executes the plans and designs specified by the structural engineer.

The Marengo, IL homeowners’ guide to home building services

From average costs to expert advice, get all the answers you need to get your job done.