Couple's lucky escape after bus smashes into Sydney house

A couple has had a lucky escape after a bus crashed into their house in Sydney's West.

The bus hit the home on Guildford Road, Guildford, about 10am today, smashing down walls and collapsing part of the roof.

Home owner Tony Mannah said he was "shocked" by the crash.

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He was out the back with wife Jamal but the mother had been lying in bed just 15 minutes before the bus came flying in.

"I was surprised when I saw the bus, I was shocked," Mannah told 9News.

"I still don't believe how it happened."

The family home of 18 years is now unliveable and they have just a suitcase of clothes.

But the couple are just thankful they were not hurt.

"You go through life with a lot of stuff, but the outcome is the most important, if you end up healthy and safe," Mannah said.

Churchgoers across the road at the Holroyd Uniting Church heard what happened.

"We were doing a prayer and we heard a whistling sound, and then we heard a big crash," one said.

They ran out to help but said only the driver was on board.

The bus suffered a smashed windscreen and front.

The bus driver, a 60-year-old man, returned a negative breath test, NSW Police said.

He was checked at hospital but released.