This is an utterly horrible company. We had a gas revision 4 or months ago where the technician stated a carbon monoxide detector was strongly recommended, and Lamington Letings hasn't yet installed it, despite our insistence.
In addition to that, the flat is incredibly noisy and old and it has mice on it. We can hear every step the neighbours upstairs make, and all the sound from the water pipes, because of the pathetic quality of the building (149 Hammersmith Grove). Fortunately, we are moving to other flat soon... but I'm afraid we will have problems with the return of deposit, after reading comments about them.
Don't trust them!