Any one with any idea on wiring/electrics

[Ahardmanisgoodtofind]

Our house is a new build seven years old. We are constantly changing blown energy saving light bulbs, we had to replace a main lighting rose thing, our out door lights have never worked (needed new bulbs when bought up on snag list-new bulbs didn't work) and now the electric shower has tripped on the fuse box and won't come back on, the fuse sparks when I try and flick it on.also the plug sockets whine (high pitch sound even when off, not constantly but often).
I am completely clueless,but does all that sound normal in a new build?I thought the point of energy efficient lighting was that they last forever but I don't think we've had all main lights working at once for years (apart from shower all issues down stairs only)

I would get an electrician to check it out. If the house is only 7 years old is it still under NHBC guarantee?

please describe these energy saving bulbs (or post a photo)

I suspect there is flickering due to a loose connection. Luckily, on a lighting circuit, the current is so low that it may not have caused any permanent damage. The most straightforward thing would be to turn off the power, open all the light switches and ceiling roses, examine the connections, and tighten them, remaking any that were poorly done. Hopefully you will not have any concealed junction boxes, but they are more likely if you have downlighters (vom) and there might be some in the loft, for the upstairs lights.

If you have low-voltage spotlights and downlighters, with concealed power supplies and webs of wires, consider changing to simple mains-powered LED lamps.

If builders dust and grit got into the switches, they are best replaced.

There are also connections in the consumer unit. For these you need a competent electrician, because when you open a CU there are some live parts, even when you have switched it off. The large copper cables mould to shape after being tightened, so best practice is to retighten them after they have settled.

If there is a loose connection on the shower (most commonly on the ceiling switch) then it may have been damaged by the heat due to high current, and need a new switch, and to have the heat-damaged copper cut away to new clean metal. This may require a professional joint to add new. If it has tripped due to a water leak inside the shower, it is not economic to repair (unless it is unusually expensive) so will probably need to be replaced, preferably with an identical model that swaps straight in.

It's possible that the housebuilders will send someone to do a proper job. Or they might just send someone cheap to do a half-arsed tinker.

You can find a qualified election on one of the Competent Person websites. Look for one near you who has been in business for several years and is not just a Domestic Installer (this is the lowest grade) and has a real-life address and local phone no, not just a mobile or an 0800 or 0870 number (which will be an agency). They are usually independent small businesses.

For example you could search on
www.niceic.com/find-a-contractor/find-contractors

Thank you for the replies! @pigletjohn the bulb are the kind with pins that push into the fitting, they're a nightmare to buy/find we bought 5 for just under £50 around Halloween and they've all blown since then, all in one fixture.
I'm pretty sure it's the power switch on the shower that blew-it flashed and banged. It's never ending issues with this house, we've just spent all our savings fixing our roof (insurance wouldn't pay out and the original builders denied there was any fault, despite 4 roofers telling us the part that failed should never have failed in the first place!)

any chance of some photos?

Get an electrician in to check your system. Our house did similar things: it turned out that the previous owners had removed the earth rod, which is pretty dangerous.