Oil/Boiler safety certificate in Residential and Commercial lettings/Freehold issues Posted January 15, 2020 Is that the same for housing associations? As I know some rules are different between private landlords & them. They turn up & issue a safety certificate every year after less than 15 minutes of being on site, essentially they run the boiler check the gases & everything else is visual which is why I was querying the fact they didn't even do that last time. The only maintenance done is to change the little screw in filter in front of the boiler they don't even take the cover off in the last 10 years that's the only maintenance they do each year. As for CO poisoning I read the same stats, I know it's a lower risk with oil but equally I know locally of a couple of households who ended up requiring hyperbaric treatments from oil boilers, our old place boiler was outside so risk was even lower but not the case here. I'll just write to them again then, if they'd just reply & say yes it's fine or no we need to do it again but they don't ever reply just "we've passed it on to our assets team"