Paul Smith, the CEO of Spicerhaart, has come under fire from Russell Quirk in a video interview by Christopher Watkin.

Quirk was giving his riposte to Smith, who wrote in a recent column for EYE that he questioned whether franchise organisation Keller Williams was sustainable.

Smith wrote: “I struggle to understand how an estate agency which lists 115 people associated with its six hubs manages to survive with just 223 properties for sale and 70 for rent (at the time of writing). Surely this is unsustainable?

“It therefore puzzles me as to why people continue to buy into this franchise business.”

Smith went on: “Even more surprising is that Russell Quirk, who managed to drive eMoov into the ground, has emerged as a partner in the new Keller Williams Essex hub, along with his cousin Anthony Quirk and House Network founder Mark Readings.

“I think we will all be watching this space with interest.”

But Quirk, who has been under the spotlight in previous columns by Smith, who takes a monthly look at the industry, has hit back.

He said that Smith’s own firm Spicerhaart is “unsustainable” and makes little profit.

Quirk, who founded eMoov which went into administration last December although it has since been bought by new owners, uses the video to express his faith in Keller Williams – which he describes as the “ultimate solution” for estate agents.

And he says that Smith is always taking on others in his column – for example, Purplebricks and Countrywide as well as Quirk himself.

Quirk said: “I think he likes me, actually.”

Quirk, who now works in his own PR firm as well as being a director of the Essex business of Keller Williams, said: “I don’t know why he’s allowed to write these columns, really.”

The interview runs to under four minutes and can be seen here: