Find out more about the advantages and risks of a second mortgage - a secured loan which can be an alternative to remortgaging.
Before the 2007-8 financial crisis, rules surrounding second mortgages were more lax, but since then it's become far harder to get one.
From 21 March, 2016, second mortgages have been governed by the FCA's mortgage rules, meaning they have the same stringent affordability criteria.
Taking on more debt when you already have a mortgage is something to consider carefully, and is certainly not to be taken lightly.
A second mortgage is a secured loan which uses the borrower's home as security.
They are sometimes used to raise money if borrowers are unable or unwilling to remortgage, or to get an unsecured personal loan.
To get a second mortgage you have to already be a homeowner, but you don't need to live in the property.
For example, if you're a landlord you might be able to get a second mortgage secured against your rented property.
Taking out a second charge mortgage allows you to use any equity you have in your home as security against another loan, so that you basically have two mortgages.
However, if you fall into financial difficulties repaying either the first or second mortgage and your property is repossessed and sold to repay the debts, the first mortgage takes priority, with the second mortgage repaid using any remaining funds.
A poor credit rating could lead to you paying more in interest if you're looking to remortgage, as you may not be able to access the most competitive deals.
Taking out a second mortgage could mean paying more interest on just the extra amount you want to borrow, rather than on your entire mortgage.
If your mortgage has a high early repayment charge, it may be cheaper to take out a second mortgage instead of remortgaging.
Options for borrowers looking to secure a loan against their property include extending their standard mortgage borrowing
David Hollingworth, London & Country
Being self-employed means you may not be able to access personal loans, so a second mortgage could be the only way for you to borrow a relatively small sum.
Taking out a second mortgage allows you to borrow an amount of money over a long period of time, which could make monthly loan repayments more affordable.
Of course, repaying over a longer term is likely to mean you pay more in interest over the term.
You may be able to overpay your second mortgage and pay it off early, so as to avoid paying too much in interest.
However, the option to overpay will depend on the terms and conditions of your mortgage and you may be faced with early repayment fees.
While second mortgages may be useful in some cases, there are some good reasons why you might want to treat them as a last resort.
If you've got a bad credit rating and can't remortgage, you probably won't be able to access competitive rates and you could end up paying a higher rate of interest on the second mortgage than you would with other options.
While taking out a second mortgage may make monthly repayments more affordable, you're likely to end up paying more in interest over the longer period.
If you can't keep up your first mortgage as it is, you should definitely avoid a second mortgage. If you fail to make your monthly repayments on either your first or second mortgage you could end up losing your home, so it's not a decision to be taken lightly.
Debt consolidation - borrowing money to pay off other money - can sometimes be a good idea, but there are serious downsides to consider.
While taking out a second mortgage to consolidate debt may seem like a good idea initially - mortgages usually charge a lower interest rate than unsecured loans and credit cards - you may end up paying more in the long term, as a second mortgage could run for 25 years.
What's more, you may be converting unsecured debt such as credit cards into secured debt, placing your home at risk.
Both the first and second mortgage will need to be cleared as part of any home sale. That could mean you're left with very little to use as a deposit on your next home.
If you don't have a large early repayment charge on your mortgage and you have some equity in your home, you may be better off remortgaging than taking out a second mortgage.
"Options for borrowers looking to secure a loan against their property include extending their standard mortgage borrowing," said David Hollingworth of London & Country.
"For example, they could do that when shopping around for a new rate and could remortgage to a better rate elsewhere, releasing some equity from the property at the same time.
"That enables the keenest mortgage rate to be taken on the entire borrowing.
"If borrowers are already tied into a deal with the current lender then they may be able to take a further advance from them.
"This is essentially a top-up on the existing mortgage and avoids any early repayment charge on the current mortgage, but will be at a different rate to the main mortgage account."
Instead of taking out a second charge loan, depending on the amount of money you need to borrow and your own personal circumstances, you might be better off with another type of loan, with options including peer-to-peer lenders.