After looking at two properties that Wood had short-listed, the Skitmores bought an eight-bedroom farmhouse in Rute, Andalusia, in acres of olive groves and with a pool and tennis court, for £210,000. “We are delighted,” says Sarah.

Property professionals such as Wood, working for British people buying abroad, are a growing force in the overseas market. Most property finders charge an upfront search fee, normally between £250 and £500, which is refunded if you buy somewhere, plus a percentage of the sale price. Others take their money from the agent selling the property.

When Paul and Tracey Beaufils moved to the Languedoc region in southern France two years ago, they nearly bought the first house they looked at. “We made an offer and it was accepted,” says Tracey. Confusion with paperwork then lost them the sale. “At first we were furious, but we later discovered it was just as well. The house was on a flood plain. When we drove past it during heavy rains a year later it was under water.”

The couple have now set up the property-finding agency Buy a House in France. “My job is to help people avoid disasters,” says Tracey. She takes clients out for an initial tour of the Languedoc area and then shows them properties. She will also guide them through the buying process. There is no charge to the homebuyer as she takes her fee out of the estate agent’s commission.

One of their clients is Barry Budibent, who retired from BP in April last year. He and his wife, Angela, had spent six months looking for a home in Burgundy. “It was not a good experience,” he says. “We spent a huge amount of time looking at properties which, if we’d been told more about them, we wouldn’t have bothered to view.”

They decided to focus on the Languedoc region on the advice of friends, and came across Tracey and Paul on the internet. “What impressed me immediately was their knowledge of the local area,” says Barry. “On the day we arrived Paul showed us several properties. We ended up buying one of them on that first day.”

The Budibents paid £100,000 for a four-bedroom village house, a price they don’t think they would have got if they’d been acting alone. “I think he saved us money,” says Barry. “And I know he saved us time.”

When Richard Lander, an editorial director with the financial publisher Citywire, decided to buy an apartment in Barcelona, his first move was to hire a property finder: “I don’t speak Spanish and would have found negotiations impossible.”

He found Beatriz Carro, who runs Barcelona Relocation Services, on the internet. “She managed the whole thing, from finding me the place, to marching me into a bank and opening an account. The whole process was easier than buying a property in England. I ended up with a really groovy apartment in El Born, Barcelona’s trendiest part.”

Carro charges an upfront refundable fee of £400 and then a percentage of the purchase price, usually between 2% and 2.5%. “She’s not cheap,” says Lander, “but she’s fantastic and has all the connections to make the process go smoothly.”

However, not all property finders will deliver, and you should do some checking before you part with any money. Jan Pratt, of the property-search company Shortcuts Mallorca, advises potential clients to ask plenty of questions. “Where have they got their experience? How do they know the market?” she says. “In addition, try to get some feedback from other clients.”

Mark Stucklin of Spanish Property Insight, a consultancy on Spanish property, advises checking credentials carefully. “Some of them are really not worth their fee,” he says. “I’ve heard of cases where they have charged thousands of euros to do web-searching you could easily do yourself. If you can’t meet them face-to- face before you take them on, have a good long telephone conversation with them.”

In Barbara Wood’s view, people who don’t charge the buyer can’t be classified as working for them. “If the money is from the seller, how can they be truly objective? I’ve had several clients who were ready to buy a property when I spotted something in the title deed I didn’t like. I am being paid by the client, so I can tell them to just walk away without losing money.”

Paul Beaufils argues that most of his clients end up living within a 40-minute radius of his house, so encouraging them to make a bad decision is not an option.