But the home team soon produced a strong rolling maul that saw winger Sam Barns cross for a try after five minutes which was converted by Tom Newton.
Frank Reynolds got the visitors on the scoreboard when he slotted a penalty, and then a Tring second rower was sent to the sin-bin after an illegal clear-out,
When a home kick failed to find touch, George Montgomery released the in-form winger Max Hobbs into space to score a try close to the posts on 26 minutes, Reynolds slotting the conversion.
From a line-out in the corner, the Wells pack went close to the line and the ball was moved wide to Harvey Colangelo to dive in at the corner two minutes before the interval.
It was the home-grown talent’s first try at this level following his impressive debut the previous weekend. The tough conversion was missed but the visitors went into half-time leading 15-7.
The second half saw a herculean defensive effort by the visitors to hold on to their advantage against a determined home team.
A Reynolds kick was charged down under pressure and Tring earned a penalty for a high tackle directly in front of the posts, Newton slotting it from 30 metres.
Wells managed to steal a lineout ball deep in Tring territory but it was knocked on and from the ensuing scrum the home full-back made a scintillating 40-metre break.
Just as a try was looking inevitable Colangelo covered the ground to intercept the pass in what was to prove a crucial piece of defensive work.
In the last 10 minutes quick hands by Wells put in Ollie Allman, who was lurking on the wing and dived in for the score.
An excellent Reynolds conversion from out wide gave Wells more breathing space on 76 minutes and they were able to close out the game with good kicking from Allman.
Fifth-placed Wells now take on Bedford Athletic on Saturday (November 23, kick-off 2.30pm).
