I had 7 windows and 1 patio door replaced and the efficiency report came out form this company has lower efficiency rating than before.The guy from Energuy came to my house name was Davis Lui. I had 66 and it came out 64. I called and the guy Valerio Rocca's from Energuy answer was they cannot control this. Data gone through the given software (v10.51) and that is the rating. I questioned whether their employee have to do another check. I was ignored.
I called government ecoEnergy for this, after a month investigation. I get a call back from Energuy saying my rating was wrong. It should be 71 by now.
I check the report they sent back to me. The version of software used to generate this report is exact the same version as before (v10.51), how do they have a different outcome ??? Guessing? Manual override? ...