"Stuff is just stuff, but making my wife and my daughter feel uncomfortable in their own home ... home is where people go to feel safe. That's what's buggered me at the moment.
"Things can be replaced but you are messing with my family by coming on to the property. If we do find them, they are going to have a big problem."
Mr Ryan believed the thieves had seen the dirt bikes when the chainsaws were stolen but had been unable to take them as they were too well secured.
When the thieves returned the following weekend they targeted the bikes, breaking the lock to the workshop and then to the bikes, which were deadbolted to the ground.
His son's yellow Suzuki RM 125 competition bike and a blue and white Yamaha WR 250 bike were taken from the workshop. Nothing else was stolen.
The thefts come after a tough few years for the family, who struggled financially after Mr Ryan, who runs his own business, took time off work for major surgery during the recession.
The family then suffered further blows when they lost their 16-year-old son, Sam, in tragic circumstances and Mr Ryan had a heart attack.
Before the theft things were "just coming right" for the family, Mr Ryan said.
"Things haven't really gone our way."
Mr Ryan was unsure if insurance would cover the full cost of replacing the chainsaws and bikes as some items were not specified on the policy.
He would be installing security cameras and taking steps to beef up security on the property, he said.
"These people think that the worst thing that can happen to them is the police catching them, but the reality is that that is not the worst thing that can happen. They may one day target the wrong person."
Anyone with information can contact Masterton police on 06 3700378 or call Crimestoppers anonymously on 0800 555 111.