The Canaries have impressed upon their return to the Premier League and are currently in eighth spot.
However, Lambert is ready to add to his squad in the New Year to help consolidate their start to the campaign.
"January has been spoken about; we might need a hand - it can give you a lift," Lambert told the Norwich Evening News.
"We made a decision at the start that we would bring in lads we roughly knew, until we got a foothold and then see what happens."
Lambert bought mainly British-born players in the summer and he admits he has concerns over signing overseas players as it takes them longer to settle at a new club.
"I needed lads who I knew and who knew the British game," added Lambert. "It helps them get to know each other.
"If you're a foreign lad coming into a dressing room, I know from experience it can take you a little bit to get used to a different culture and a different way.
"We have to try and be in and around it in January. If we can add to it then we will, but that's a lot easier said than done because you tend to find prices go sky high in January. But we need a hand."