DissyStitch

Wow, thanks for this in depth reply @Gus Potter. I haven't checked back here for a while so apologies if my lack of thanks appeared rude! I'm going to have a good read of your thoughts now. This situation is bothering me somewhat, I can't seem to shake it.

Thanks all. Must admit I'm liking TonyT's advice the most 🤭. I guess I'm just concerned that due to the new rules regarding trickle vents, someone here has broken the rules and I'm not sure if that's them or me. Further down the line, if I sell the house for example, am I going to end up with some kind of bill. From what I've read, and like Big Jimbo says, building control don't seem overly fussed about it and hopefully it won't be a problem anyway.

No MVHR here. Who would get in trouble for "breaking the rules"? The company or me (because I agreed to it)?

Hi. I recently had new uPVC windows installed in my whole house (10 Windows). The company told me about a loophole regarding trickle vents. They said that vents are not required if 30% of the windows are replaced at a time. So, they installed all of the windows in one go but will apply to certass 3 times for certification over a period of a few months so as not to raise suspicion and give the illusion that we did not replace more than 30% in one go. I'm now regretting this decision and am worried I'm going to get "found out". Who would liable for this? Would it be on me, or the double glazing company? I completely agreed at the time so I can't claim ignorance!