Colorado A C D F G H I K L M N O P R S T U V W Colorado Construction Litigation Hold C.R.S. § 13-80-104Substantial completion of improvement to real property for actions against architect, contractor, builder or builder vendor, engineer or inspector.Claims during 5th or 6th year can be brought within two years after cause.Online ReferenceNational Society of Professional Engineers Home Online Reference State Statute for Construction: 6 Years*The National Society of Professional Engineers Recommends an Additional: 3 YearsRecommended Document Retention 9 Years If you would like to learn the statute of limitations of any warranty your state entitles you to, refer to our Warranties map.