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Custom One Builders, Inc.

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About us

Designing and building top quality, energy efficient, "green", clear span custom homes, additions and decks in Northern Illinois and Southern Wisconsin since 1955. We are the only truly, "No Cost One Stop Shop", for a free custom home, addition or deck, designed to your specifications and budget, then drawn to a ¼" scale plan and priced out with a very detailed printed bid (that you can take to the Bank), at no cost or obligation. Licensed, Bonded, Insured ($2,000,000.00). 10 year warranty on everything we supply and install. Please give Stephen Mathews (Master Designer and Builder), President of Custom One Builders, Inc. a call on his cell phone at 815-482-7652. You will not be disappointed or sorry and you will receive a lot of very useful information to help you decide how much home you can build or if building a home is best for you, all at no cost or obligations! Email: [email protected] / Web site: www.customonebuilders.com

Business highlights

70 years of experience

Services we offer

Demolition of homes and buildings (know the codes before you demo or you could end up with a non buildable site, very common and costly mistake)., Designing & building clear span (no steel post or beams in basement) homes, additions and decks since 1955., Fire and flood damaged homes. Get the most out of your insurance claim. We have always designed and rebuilt a better home than the one that burnt., Historic old world replacement work. Our carpenters are Master craftsmen. We have rehab and restored a 200 year old, 9 bathroom , 10,000 square foot home, Water front specialist (flood plain, wet lands, property with a well and a septic) know the rules, regulation & codes! Lot of glass to all glass homes.

Amenities

Free Estimates

Yes

Warranties

Yes

Accepted Payment Methods

  • CreditCard
Reviews
4.16 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
67%
4
17%
3
0%
2
0%
1
17%

Filter reviews by service

Showing 1-6 of 6 reviews
Julie M.
Mar 2025
5.0
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$1,110,000
Our family had the pleasure of working with Stephen Matthews and Custom One Builders. We started our project as a remodel which soon turned into a complete rebuild as we found that in our old house there were many foundation issues preventing us from increasing our house size as needed for our large family. Stephen, his sons, and his team of contractors made the entire process much less overwhelming. Custom One Builders provided excellent service, quality product, constant communication, and a fair price. We highly recommend Custom One Builders and should the need ever arise again, we will definitely head straight to Custom One Builders.

Angie D.
Nov 2023
5.0
Yes, I recommend this pro
Steve Mathews has completed many jobs at my home over the years. He is highly intelligent, talented, honest, and just a great person to work with. He completes each job as an experienced professional who truly cares about his clients. His expertise extends from the initial design phase to adding all of the finishing touches. The jobs were all completed on time and within budgets. I highly recommend Steve and his company, Custom One Builders in Wonder Lake, IL.

Mike C.
Sep 2022
5.0
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Yes, I recommend this pro
$339,000
This guy, Steve, maximized beauty and utility while minimizing costs. Definitely recommend.

Rob K.
May 2020
0.5
Find a Custom Home Builder
Have all your contracts checked over by a lawyer before signing anything with them. Lack of project leadership made the job last longer and cost much more than needed. Many Mondays of the project no one showed up to work.

Gerald T.
Jan 2020
4.0
Find a Custom Home Builder
Yes, I recommend this pro
{No comment provided}

Lee G.
Jan 2020
5.0
Find a Custom Home Builder
Yes, I recommend this pro
{No comment provided}

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

Custom One Builders, Inc. is currently rated 4.1 overall out of 5.

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

Custom One Builders, Inc. accepts the following forms of payment: CreditCard

Yes, Custom One Builders, Inc. offers free project estimates.

No, Custom One Builders, Inc. does not offer eco-friendly accreditations.

No, Custom One Builders, Inc. does not offer a senior discount.

No, Custom One Builders, Inc. does not offer emergency services.

Yes, Custom One Builders, Inc. offers warranties.