HORSHAM'S Lane Building Contractors owner Justin Lane is furious after people illegally dumped rubbish on his building sites.
The issue has also angered Horsham man Rob Moir, whose new house is being built on one of the sites.
Mr Lane, who owns the business with wife Jo, said dumping was a common problem.
He said the Christmas period had exacerbated the issue.
Mr Lane said he placed dumpsters on his new building sites.
He said over the past few weeks, people had discarded their rubbish around the dumpsters.
Dumped items included a BMX bike, stereos, a car exhaust and bags of rubbish.
"There's heaps of it," Mr Lane said. "There's probably half a shipful again around the base of the bin."
Mr Lane said the costs would eventually hit homeowners such as Mr Moir.
"I have to pay for it - I pay for rubbish removal while the house is being built," he said.
"But at the end of the day the poor homeowner pays for it."
Mr Moir is building a home in Hovey Court, Horsham, with his wife Wendy and son Ethan, 5, through Lane Building Contractors.
He said he visited the site on New Year's Day to discover the dumped rubbish.
"I've been in Horsham for seven years and this is the first time I've encountered something this dodgy.
"We would have been offended if they dumped their rubbish in the bin but to pile it around it just seems all the more unreasonable."
Mr Moir asked if anyone knew of people dumping on building sites to report them.
He said he wanted people to get rid of their rubbish responsibly.
"I'm quite happy to pay for my own rubbish to be dumped. I don't want to pay for some loser's rubbish who can't be bothered throwing out dirty nappies properly," he said,
Mr Lane called on people to be aware of the issue.
"Have a bit of consideration," he said. "Keep an eye out for anyone who might be dumping stuff and dob them in."