Retrofitting my home. Some questions.

My house was built in the mid 1990's. The attic area has pretty thick insulation, about 8 to 10" deep. Most of the commentators talk about having your attic insulated. As my house is already insulated are they saying that since the 1990's there are now better attic insulation products available and mine might be obsolete? Do I really need to get this done?

In one bedroom of my home I have 4 downlighters. The builders did not insulate over these downlighters, I assume that the heat generated from the lights might cause a fire in the insulation. As a result I have 4 areas in my attic about 2' square each that has no insulation around them. Is there anything that I can do to cover these etc?

If I get internal insulation on the walls of my home. I assume that I have to have all my coving removed, my skirting boards......do I have to have my carpets taken up and trimmed? How thick is the internal insulation? Is there much heat loss through the electrical sockets that are replaced or are these insulated in some way?

How much does it cost to have a qualified person to call to my home and do a survey of what is needed to bring my home up to a higher BER rating? Do these surveyors identify all the areas in my home where there is heat loss?

Find your house type here and review the various improvement options, costs & benefits.

You can get insulating pots for down lighters that are designed to deal with the heat produced. Heat was a significant issue with halogen bulbs, if you replace them all with LED you will have far less heat produced.

Internal insulation will start at around 50mm overall thickness, more to get better values. Sockets can be sealed to reduce or ideally eliminate aid leakage.

This thread might be of some interest to you and answer some of your questions.