The purchase of your own home is generally regarded as the biggest financial outlay you will ever make.
Intelligent homebuyers realise why it is so important to have a survey to advise as to whether the property is free from significant defect and associated expense.
Money wisely spent on a survey can save the need to spend thousands on repairs or replacement, should you proceed without a survey.
Your survey will also be a useful negotiating tool to further reduce the price you pay for your new home. If no significant repairs or expenditure are required then at least you have peace of mind. It is too late to negotiate a price once you have exchanged contracts.
When buying a home you should never rely solely on a mortgage valuation. The lenders themselves state within their terms and conditions that this should not be done.