About 500 people people piled into the grounds of Southville community and children's centre, with both youngsters and adults wearing their scariest costumes and faces for the annual Halloween Scream event.
MP for Feltham and Heston Seema Malhotra also dropped in to what she described was "absolutely the best Halloween party in town".
Among those getting hot under the collar were scary stilt walkers who wondered the grounds on what was believed to be the hottest Halloween on record as temperatures soared above 20C.
But it was the real-life creepy crawlies, from spooky spiders to slimy snakes, that sent people screaming, while there was more arty crafty Halloween fun with the Feltham Arts team and games such as guess what's in the slimy boxes.
Other entertainment included performances from the Brentford Alluminae dancers, Bedfont's Outside the Box dancers, and a special fire show.
There was also the usual face painting, glitter tattoos, t-shirt design, a bouncy castle, rodeo bull, balloon animals and tombola.