Reliable and Professional

Bring our unparalleled service to your project!


Reliable Contracting Experts


Custom Home Innovations was started in 2004 by Greg and Elizabeth Sonntag. Greg is a master carpenter and licensed contractor with over 20 years in the industry. After graduating from Colorado State University, Greg worked as a project manager for a Northern Colorado builder until he started the company in 2004. Elizabeth has a background in Project Design and brings unique skills to the company. 

At C.H.I. we are committed to quality workmanship and service. As a premier company dedicated to providing superior customer service, it is important to deliver unparalleled workmanship on every assignment. We offer a wide range of services to meet your project needs and ensure durable cost-effective workmanship. 

Communication is Key


We will work with you to meet deadlines and coordinate with other related projects. We will maintain open communication with you to keep you up to date on the status of your job. We do this to guarantee that the project is completed according to your preferences.

Satisfaction Guaranteed


 We strive to save you both time and money by combining our use of industry knowledge, the highest quality materials and equipment, and our dedication to delivering exceptional service. We will not leave the job until it is finished and you are satisfied.


Mike & Nanette C. Fort Collins

 "What a pleasure it was to work with Greg and CHI. He is very professional  and always thinking ahead to make sure there are no delays. If unforeseen  expenses come up, Greg is very honest and fair. Also, his design was beautiful with smart utilization of space. We are ecstatic with our new basement and would recommend Greg to anyone." 

Rich L. Fort Collins

 "Greg Sonntag and his C.H.I. team completely transformed our large, dark unfinished basement into a wonderful living space for our home in Fort Collins! This project had multiple challenges to overcome, but Greg and his subs were up to the task. He is very creative, talented and professional in all that he does, and his finished product certainly  reflects these attributes. He even used his master carpenter skills to custom build a home entertainment feature that included rolling doors and library shelves. We had looked at a similar unit in stores that would have cost us thousands more to purchase. We are so glad that we found Greg to complete this project for us! Thank you, Greg!"  

Jay A. Fort Collins

 "We used Custom Home Innovations when a water line in our house broke and flooded our basement and kitchen. The owner "Greg Sonntag " worked very well with us to make our repairs and updates as stress free as  possible. He and his crew did an outstanding job and gave us the kitchen and basement of our dreams. I would highly recommend this company to anybody!!" 

Brandon & Katie W. Greeley

 "Our basement was completed quickly and with higher quality than we  expected. Greg was easy to work with, kept us informed and did an excellent job. We are excited about our new basement."

Tim & Michele H. Brighton

  "We are extremely happy with our basement, we would recommend Greg to anyone who is planning on finishing their basement." 

Fred K. Fort Collins

 "Custom Home Innovations remodeled my kitchen and did some beautiful custom wood work. Greg Sonntag is honest, open, and upfront in his business dealings and takes pride in his craft. CHI probably won't be your lowest bid, but the reasons for additional cost are clear and the relationship with an honest contractor and the work done is worth it."