The 10 Best Plumbing Companies in Connecticut — 2026

We compared all 446 plumbing companies in Connecticut on the data that matters: services offered, posted hours, and how easy each one is to reach. No pay-to-play — this ranking comes straight from the listings data, updated November 2026.

#1 · Avon Plumbing & HeatingAvon

(860) 677-9721 Website View listing

#2 · Roto-Rooter Plumbing & Water CleanupAnsonia Drain service

(203) 736-0079 Website View listing

#3 · BenderNorwalk

(203) 663-0272 Website View listing

#4 · Homestead ComfortEllington

(860) 870-8700 Website View listing

#5 · Foley's Plumbing And HeatingBrookfield

(203) 797-1626 Website View listing

#6 · Gas Works Propane (office and home delivery/service)Wallingford

(203) 269-2082 Website View listing

#7 · American RooterWatertown Drain service

(860) 274-7338 Website View listing

#8 · Apex MechanicalHebron

(860) 228-2752 Website View listing

#9 · The Otto CompanyDanbury

(203) 748-9072 Website View listing

#10 · Griswold Plumbing ServicesKillingworth

(860) 554-5219 Website View listing

Run one of these businesses? You earned this spot — email contact@plumbingatlas.com for your free “Top Plumbing Companies in Connecticut” badge to put on your site, and we’ll make sure your listing stays accurate.
How we rank: every listing earns points for listed services (drain service, water heaters, sewer service, emergency service), posted hours, and working contact details. The ranking is recalculated with every data update.