Both 100 per cent Appliances and Heathcote Appliances stores are independently-owned.
They were rated above average for during-sale and after-sale service.
However, customers surveyed were not impressed with big chain stores such as JB HiFi, Noel Leeming and Harvey Norman, with only about 40 per cent of those surveyed recommending those stores.
Consumer NZ chief executive Sue Chetwin said independently-owned stores focused greatly on customer service.
"Independent stores have to try harder because they can't always compete on price," she said.
When it came to keeping customers happy, "you can't beat good old-fashioned customer service", she said.
Nobody from JB HiFi or Noel Leeming could immediately reached for comment, while a spokeswoman for Harvey Norman declined to comment.
Heathcote Appliances director Grant Heathcote said he was "really chuffed" but not surprised by the result.
"We have a number of awards hanging out in our marketing room.
"This is another one to add to it," he said.
Mr Heathcote credited the success of the family-run business to great customer service.
"Our staff are indoctrinated to provide great service.
"We're disappointed if we don't get recognised for it."
About five customers came into the store and congratulated the staff today, he said.
"One employee said to me, 'makes it all worthwhile doesn't it boss?"'
National chain Farmers rated better than average for price and overall satisfaction, while Briscoes was above average for product range and price, but customers were less satisfied with during-sale service.
Most and least recommended stores:
Home appliance and technology stores:
• 72 per cent recommended Mighty Ape
• 29 per cent recommended Dick Smith
• The average was 46 per cent
Hardware, DIY and automotive stores:
• 55 per cent recommended Hammer Hardware
• 33 per cent recommended Placemakers
• The average was 46 per cent
Furniture and bedding stores:
• 56 per cent recommended McKenzie and Willis
• 26 per cent recommended Early Settler
• The average was 47 per cent
Carpet and flooring stores:
• 57 per cent recommended The Tile Depot
• 38 per cent recommended Mitre 10
• The average was 50 per cent
Source: Consumer NZ