Jumbo PlumbingPlumber in London, ON

Jumbo Plumbing is ranked #4 of 111 plumbers in London by CR Score, with 63 out of 100 as of October 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity, claimed profile, partnered and ContractorsRanked reviews. No business can pay to change its rank.

Jumbo Plumbing is open 24 hours a day, 7 days a week. Its listed hours are Open 24 hours, 7 days a week. On Saturdays it is open Open 24 hours, and on Sundays Open 24 hours. Hours come from the business listing; holiday hours may differ.

Serves London and 4 towns within 40 km: St. Thomas, Aylmer, Dorchester and Ingersoll. The list is based on the business's location and the usual service radius for plumbing. Confirm your address is covered when you call.

Jumbo Plumbing has a rating of 4.9 from 318 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

Call Jumbo Plumbing on (226) 667-3511. The business is at 36 St Catharine St unit 3, St Thomas, ON N5P 2V8, London, ON. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.