Brothers Amar Nadeem and Asad Baz carried out the attack after an 18-month argument over payment for an extension to a £350,000 “dream home”.
A court heard the builder was knocked unconscious during the incident outside the property in Pudsey and feared he was going to die.
Carl Fitch, prosecuting, said the incident happened in February last year after the relationship between the builder and Nadeem broke down over payments for work on his home.
The builder and another man turned up at the property to remove equipment and take down scaffolding.
Mr Fitch said Baz was at the house and he contacted his brother.
Nadeem arrived at the house and the brothers confronted the builder as he was stood next to the van.
Nedeem punched the victim and he hit his head against the door of the van as he was knocked to the ground.
He was then kicked and punched repeatedly as he was on the ground.
Nadeem picked up a spanner the builder had been using to take down the scaffolding and attacked him with it..
The prosecutor said: “He was bleeding from his head and feared for his life.”
The other man who was with the builder contacted police.
The builder managed to get to hit feet and returned to his van.
Baz pulled him from the vehicle before he could drive away and Nedeem continued to assault him.
He was bleeding from his nose and mouth when officers arrived and was lapsing in and out of consciousness.
Mr Fitch said the builder suffered cuts and bruises to face, a fractured wrist and a chipped tooth.
Baz, 30, and Nadeem, 37, both of Woodhall Park Grove, Stanningley, Leeds, pleaded guilty to unlawful wounding.
Zaiban Alam, for Nadeem, said his client had used his life savings to buy the “dream house” for his family for £350,000 and had paid the £80,000 to builder to erect a double extension.
Ms Alam said the builder had stopped work 18-months before the incident following a dispute over money.
She added: “It is clear from the facts that there is a significant background to this case.”
Paul Hodkinson, for Baz, said his client was a hard-working family man and his actions had been out of character.
Nadeem was given a 20-month prison sentence, suspended for two years, and ordered to do 200 hours of unpaid work.
Baz was given an eight-month sentence, suspended for two years, and ordered to do 120 hours of unpaid work.
Sentencing the pair, Recorder Andrew Sutcliffe, QC, said: “I take in to account the background to this attack which in no way justifies your behaviour.”