Any Comparison Sites that also cover IGT costs?

humfer

Have been with npower for the past year and have to leave. They have been driving me mad for ages and now I am in the middle of a complaint with them over the simple fact that they have NEVER sent me letters warning of price changes (I make it 4 to date). Anyhow my house is 6 years old and is on a independant gas network which has a slightly higher cost. I don't think the likes of uswitch, etc account for this. Anyone know of a full proof way of comparing companies IGT prices before I make the plunge?

Altarf

I am not aware of any that do. Also few of the energy suppliers sites mention the price difference, and even if you phone them quite a few of the staff don't know the IGT prices or even what IGT is.

Also some companies like EDF charge a higher price for IGT customers for gas only, but if you are a dual fuel customer there is no surcharge.

tripled

You can see the surcharges listed here.

Although Powergen are listed as having a charge, I belive there is one tariff which is an exception, so if you see a promising deal with them it may be worth calling up to ask.