The good news is that there is a very good left luggage office in the arrivals hall of each of Heathrow’s 4 passenger terminals.
Each office is well located, very well lit and presented and the service is reliable.
The only down side is that one company holds the concession for the whole airport and its not cheap.
Price Check – Left Luggage Heathrow
At the time of writing, charges were very simple.
0-4 hours – £5 per item
4-24 hours – £8.50 per item
Extra days – £8.50 per item
The company name is the Excess Baggage Company, so do double check on their web site current charges
Opening Hours - Left Luggage Heathrow
All the left luggage offices at Heathrow open daily betwee 5 a.m and 6 a.m. and close at 11 p.m
Other Services - Left Luggage Heathrow
The offices also offer shipping services to send your luggage worldwide.
They also offer bag wrap and a small selection of travel bags and accessories
Heathrow To London – Comparison of transport options
Heathrow Stopvers – Heathrow stopover solutions