Colorado law does not set a fixed number of attempts. What courts want to see is due diligence, documented proof that a real, reasonable effort was made to find and serve someone. In practice, professional process servers make three to five attempts at different times of day and different days of the week before recommending an alternative method.
Why There Is No Fixed Attempt Count in Colorado
Colorado’s civil procedure rules focus on the outcome, service that actually reaches the person or a legally acceptable substitute, not on a specific attempt quota. That is why a process server varies the timing on purpose. Someone who is never home at 10am on a weekday might answer the door at 7pm on a Saturday. Each attempt gets logged with the date, time, and what was observed, whether that is no answer, a car in the driveway, or a neighbor confirming the person still lives there.
What Happens to All That Attempt History?
Every attempt feeds directly into an Affidavit of Service. If the case eventually needs substitute service or service by publication because the person could not be reached directly, the judge is going to look at that attempt log to decide whether the effort was genuinely diligent. A thin log with two attempts on the same afternoon looks very different to a court than five attempts spread across mornings, evenings, and a weekend.
Does Refusing to Accept the Papers Stop Service?
No. If someone answers the door and refuses to take the documents, Colorado allows the server to identify the documents out loud, confirm who they are speaking to, and then leave the papers in a conspicuous place, at their feet, in the door, wherever is reasonable. That counts as valid service. Refusing to physically touch the envelope does not undo it, and it does not stop the case from moving forward. For more on this exact scenario, see do you have to open the door for a process server.
What Happens If They Are Never Home for Any Attempt?
After a reasonable number of documented attempts, alternatives open up. Substituted service allows delivery to a responsible adult at the person’s home or workplace. If the person is actively avoiding service or their location is genuinely unknown, service by publication in a local paper becomes an option. See what happens if a process server can’t find you and how a process server locates someone who is avoiding service for how that actually plays out.
If you need someone actually served in Greeley, Fort Collins, Loveland, or anywhere in Northern Colorado, and you want it documented properly from the first attempt, call us at 970-658-3812.