Traditionally, the utilities always sent out separate bills, so there would be one bill for gas, one for electricity, and a third for water/sewer.
In more recent years, the energy companies have started offering complex combination tariffs which means that in some cases you might be paying the same company for gas and electricity and receive a combined bill. Gas and electric bills are normally sent and paid quarterly, but most companies also offer monthly installment plans.
Water/sewer bills can be a little different, and are complicated by the fact that some people are on a metered supply while others are still on a flat-rate service. Billing can vary from area to area, but where I live one can pay the full amount up front for the year, split it into two installments at 6-monthly intervals, or pay on a monthly installment plan by direct debit.
In Scotland the water bill is incorporated into the local council-tax bill, for some obscure reason.
When it comes to rental properties, you then have to check whether the landlord is including any or all of the utilities in the rent. The most likely to be included is water/sewer charges where the property is still on flat-rate service. It's not unusual for electricity meters in rental properties to be the pay-as-you-go card type. You buy cards with £5, £10, etc. worth of credit at a local convenience store or post office and insert into the meter when necessary. There's a digital display on the meter which shows how much you have left.
As for actual amounts, I have no gas and use electricity for all space heating, water heating, and cooking. I'm in a single-story home of about 1000 sq. ft, and there's nobody else here but me and my cat. Electricity for me is averaging out at about £500 for the year, obviously higher on the winter bill than the summer one. Prices have been rising rapidly in the last year or two. This year's combined water/sewer bill for me is just over £300, flat-rate (unmetered).