Feldman's second cousin, Maytal Kotler, who attended Haim's funeral, told the Toronto Star that the 45-minute service was "very sad but with a lot of laughter." She said that the chapel was full to capacity, with over 200 mourners inside.
Since the time and date of Haim's funeral were announced, there have been multiple rumors as to who would be covering the funeral costs. Haim had filed for personal bankruptcy in 1997.
Corey's mother told "Access Hollywood" that the city of Toronto would be covering the funeral costs, but Toronto's communications director, Kevin Sack, told People.com on Monday that was false.
"The City of Toronto confirms no involvement in funeral costs for Mr. Haim," Sack told People.com. "The City of Toronto has never received an application for assistance with the funeral costs for Mr. Haim."
Michael Kronik, the owner of Staritifacts, a celebrity auction Web site, told "Star" magazine on Sunday that he would give Haim's mother $20,000 as a gift to help cover the funeral expenses.
Many Haim fans also donated money through Haim's Web site to help pay for the teen idol's funeral.
It is a time of complex emotions for the Haim family. On Monday, the day before Corey's funeral, his sister, Carol "Cari" Haim, gave birth to a baby girl. The news of the healthy baby, Molly Rose, was first reported by "Access Hollywood."
Corey Haim had been working to get clean from prescription drugs in the weeks before he died, according to his agent, but he allegedly obtained dozens of prescriptions from doctors and illegal sources.
Autopsy results have yet to be released, but it is widely believed that Haim's death last week was caused by some kind of prescription drug cocktail.
The 38-year old actor rose to stardom in the 1980's by appearing in movies such as "Lucas" and "Lost Boys." His career seemed to be turning around when he appeared with best friend Corey Feldman on the reality show, "The Two Coreys." Haim never married, but was at one time engaged to Nicole Eggert, Tiffany Shepis, Holly Fields and Cindy Guyer.
ABC News' Lisa Fletcher and Sarah Netter contributed to this report.