First of all - if you have any personal items, get down to the garage in question with proof of ownership & ask to get them out of the car - the following will explain why :-
The garage will need to see how much the repair cost will add up to, which normally takes 48hrs to sort out - for instance if your car is worth 5K & the repairs come to 2K then they should repair it. But if the repairs come to over 2.5K then there is every chance they are going to write it off.
If this happens your insurance company will write the car off & make you a market value offer. But before you even aggree to this offer ''DEMAND'' to see the engineers report of your car - because if there is no chassis damage it might be worth you buying the car back from you insurance company & accepting a smaller cash payment.
This is where it turns into a bit of a mine field & if you need further details please IM me or if i get the time one day i will write it all down & prehaps someone might get the post pinned so others can see it.
But in breif - if the car is written off, then it will no longer belong to you & the insurance company will take over the ownership (& THATS WHY ITS SO IMPORTANT TO GET ANY PERSONAL ITEMS OUT OF THE CAR STRAIGHT AWAY)
If the car is written off, your insurance company will make you a cash offer for the car. NEVER ACCEPT THE FIRST OFFER because they will then make a better offer AND IF YOU ARE IN A POSITION TO WAIT EVEN LONGER turn the 2nd offer down as well. Your insurance company will then make a 3rd & final offer WHICH SOMETIMES CAN BE UP TO £500 MORE THAN THEIR 1ST OFFER
However there is another option if the car is written off - & you really want to keep the car & have seen the engeineers report - you might want to consider getting it repaired yourself. MAKE SURE YOU KNOW HOW MUCH ITS GOING TO COST YOU FIRST. Because if you can get all the parts off ebay etc for say £500 & a local bodyshop tells you they can fit & paint them all for £500 you could be onto a winner. If this is the case, ask your insurace company how much it will cost to buy the car off them - if they say £1000 & they will also give you £3000 cash back towards the repairs etc, you could end up with your car back & a grand in your back pocket even after it has been repaired - but be aware that if you do this your car will have a cat C insurance repair written on the cars logbook
Cat C = light damage / no chassis damage - so if you keep all the reecipts & ask the garage to take photos when they repair the car, you would have no problems selling the car ata later date.
From the damage you have mentioned i am sure its a simple repair, but i just thought i would add the above in case the worst happens (BIRTY)