The Tangerines are sitting second top in the Scottish Premiership thanks to their hard-fought 1-0 victory over Ross County when Gary Mackay-Steven's 69th minute winner gave them their latest victory.
United have now chalked up six straight wins and are the undoubted form team in the country, heading into the festive period which includes a bumper clash with New Firm rivals Aberdeen at Tannadice on New Year's Day.
And McNamara said: "We're delighted with the way things are going.
"You always hope to play good football and get results at the same time which is what we're striving to do.
"County came here and put bodies behind the ball but we got our just rewards in the end.
"We always encourage the boys to play to their strengths which is what they're good at.
"We've had a lot of hard games recently but it's just about taking one at a time and trying to get the three points.
"We're not looking too far ahead and the boys are all just focused on the next game."
United midfielder John Rankin echoed those thoughts of his manager as they look to try and cement second place.
Rankin said: "It's still early days and we haven't done anything yet.
"But we've every right to be confident with the way we are playing right now.
"It's really enjoyable to be part of it and when teams come and sit back it's a sign of respect.
"We're getting used to it and it's up to us to break them down and show we can handle that."
County manager Derek Adams felt his side competed well for long spells but urged them to move on and try to end their eight game league run without a win.
Adams said: "It's about trying to take the positives from this game into the next one.
"Dundee United are very much on form just now so we just had to try and compete with them.
"I thought the lads did that pretty well and all we have to concentrate on is our main aim, which is staying in the SPFL."