You will need to replace them (or get an electrician to replace them).
Replacing sockets is a straightforward job:
- Turn off the power to the receptacle.
- Verify that power is off at the receptacle.
- Unscrew the old socket from the box.
- Make a note of which wires go where.
- Remove the wires from the old socket.
- Wire up the new socket - double checking that live -> live, neutral -> neutral and earth -> earth.
- Screw the new socket onto the box.
- Turn the power back on.
This is still a job a householder can do in the UK. However, if you are uncertain about any of the above steps or you think there might be something more serious wrong with the electrics then get an electrician in.
If the plugs aren't holding in the sockets then the sockets are potentially dangerous.
1The quick solution to this is to bend out the prongs on the plug so that it doesn't fall out. But replacing the outlet is the correct answer. – BMitch – 2012-04-04T17:46:53.993
1@Tester101: +1000, I'm currently going through replacing my house's outlets with T/R ones as part of child-proofing. The 10-packs work out to less than a buck an outlet; definitely a good deal if you're replacing a lot of them. You can also buy the nylon outlet plates in the same 10-packs, and those work out to less than a quarter a plate for hard plastic and about $.38/plate for nylon. – KeithS – 2012-04-04T18:01:43.697
4If plugs are falling out, it generally means the metal contacts inside the receptacles are worn out. (I'm guessing this is an older house?) – myron-semack – 2011-03-07T13:34:20.007
Built in 79... I don't think that qualifies it as "old", though I can tell you that whoever the previous group over owners were have done nothing to it. It had the original windows, furnace, paint (in some areas) and carpet. – Chris Sobolewski – 2011-03-07T13:47:11.740
1@Chris - my house is about the same age, and I've had the same issues. The receptacles are just worn out and need to be replaced as @ChrisF suggests. Luckily it's pretty easy (and cheap) to do yourself if your comfortable doing that kind of stuff. – Eric Petroelje – 2011-03-07T13:56:14.363
6If you are replacing a bunch, look for a contractor pack at the big box store (usually 10-20 per pack) you can save some money that way. – Tester101 – 2011-03-07T17:36:00.510
Thank you for the tip. I'll be replacing most of them in the house! – Chris Sobolewski – 2011-03-07T19:02:34.897
2I have noticed metal fatigue on older sockets that require replacement. This metal fatigue is ALSO the reason I ONLY use the screw connector not the quick connector - I DID experience a FIRE from one where the metal on the quick connect fatigued and did not solidly connect the socket to the wire and the wire got so hot it melted and burnt and started the wall afire. – Mark Schultheiss – 2011-03-07T19:21:46.593