Almost 50 boats took to the Port Solent to participate in the friendly competition, which celebrated its 20th year on September 5-6 as more than 400 members of the plumbing, heating and construction sectors raised money for causes including Help for Heroes and the John Merricks Sailing Trust.
The two-day event included a day of sailing and celebration evening of food, live music and entertainment.
The tightly-fought contest saw independent builders merchant Elliots take home the grand prize, narrowly beating runner-up, law firm Squire Patton Boggs. Heating and plumbing supplier Williams & Co came third.
Help for Heroes entered three boats in the race, which were filled with ex-servicemen and women who are supported by the charity.
Polypipe has a long-term association with charity the John Merricks Sailing Trust, which teaches young people how to sail. Trustee Jim Saltonstall announced that the event has helped to raise £400,000 for the charity over the last 15 years.
An auction and raffle raised more than £9,000, with prizes on offer including Manchester United match tickets, a round of golf and luxury hotel stay at St Andrews and the chance to sail on the classic gaff cutter Thalia.
Meanwhile, surplus food from the event was donated to the LifeHouse homeless shelter in Southsea.
Vince Miles, divisional sales director at Polypipe Building Products, said: “Over the last two decades, the Polypipe Regatta has developed into a hugely popular event that never disappoints. This year was no exception, with so many supporters of the event again making the trip to Portsmouth to join us for the celebrations.
“Help for Heroes and the John Merricks Sailing Trust are charities close to our hearts and all of the Polypipe team are proud to know that the money raised really does make a difference to the lives of so many.”
Next year’s event is due to take place on September 4-5 2019.