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Ontario Premier Dalton McGuinty says victims of the tornado that tore through Essex County in southwestern Ontario early Sunday can count on the province for financial help.

McGuinty toured tornado-whipped Leamington, Ont., late Wednesday, where a state of emergency was still in place four days after the tornado tore roofs off houses and downed century-old trees.

"Our responsibility now is to work together," said McGuinty, after touring a nursery where the storm destroyed large greenhouses.

"If we want to take our lead from anybody, take our lead from this community. Look how quickly they came together, cleaned up much of the damage and now there's some longer-term issues, some compensation issues that we need to find a way to help them with."

'They can count on the rest of Ontario… I'm just here on behalf of 13 million people. Right now, the folks in Leamington are in a little bit of trouble, and I think the rest of us have responsibility to help out.'—Premier Dalton McGuinty

The premier did not bring his chequebook but did say provincial aid is available, and hinted that the process could be sped up to help the people in and around the areas of Leamington, Harrow and Colchester.

"They can count on the rest of Ontario," said McGuinty.

"I'm just here on behalf of 13 million people. Right now, the folks in Leamington are in a little bit of trouble, and I think the rest of us have responsibility to help out."

Greenhouses shattered, jobs threatened

Laurie McConnell Borschke of Leamington told CBC News she hopes to see some financial aid from the government.

Borschke owns the field next to the shattered greenhouse, and said she won't be able to plant sweet corn in that field as planned.

"[That means] loss of income, because we can't get into that field now. There's so much glass into it.… It's the size of diamonds out there," she said.

"We would like something, I don't know what to ask for, but."

Jackson's Flowers greenhouses in Leamington were shattered during Sunday's tornado, spreading glass onto a nearby cornfield. (Karen Brady/CBC)

Damage to the Jackson's Flowers greenhouses could mean the company will lay off between 100 and 160 people, said Mayor John Adams.

At least 12 homes were deemed unsafe after the twister, and officials have said it will take a few weeks to finish cleaning up.

"For us, the biggest thing is for people to be patient," said Chuck Parsons, Leamington's emergency management co-ordinator.

"We will get to the debris and we will get to the cleanup. It just will take a while to plug at it."

Electricity has been restored to just about everyone in Essex County.

Marina damages in the millions

On Wednesday, divers discovered damage to the Leamington Marina was worse than expected.

Half of the docks are now floating freely, no longer anchored to the lake bottom.

"They were there for approximately 12 hours, inspecting every single chain on all the docks for integrity," said manager Ronan Oliver, who expects the docks to be repaired within two months in anticipation of visiting boaters from Ohio and Michigan.

Oliver said it could cost as much as $2 million to fix the storm damage.