Matty Warhurst and Sam Hoskins scored at the start of both halves as Town made it seven points from their last four games. Here are our player ratings from Sixfields...
1. Zach Jeacock
Down smartly to keep out Perry's low effort shortly after Cobblers took the lead, one of just four shots taken by Colchester throughout the whole game. Handling was secure in difficult conditions... 7 | Getty Images
2. Janoi Donacien
Unfussy and unruffled in his defensive work, almost playing in second gear. Nullified Colchester's threat and came across to help others when danger arose... 7.5 | Getty Images
3. Elliott Moore
Extremely comfortable, not for the first time this season. Perry's chance was a good one and Ihionvien went close but otherwise Cobblers were never under sustained pressure. Four clean sheets and only two teams have conceded fewer goals... 7.5 | Getty Images
4. Jon Guthrie
Did just enough to put off Ihionvien when the Colchester man glanced wide late in the first half. Terrific tackle just as the visitors looked to be through on goal in a rare moment of danger after the break... 7.5 | Getty Images