Your Full-Service Plumber At McAllister Plumbing, Inc., we provide fast, reliable, and guaranteed service for all of your plumbing needs.

What We Do We are a highly experienced plumbing contractor providing comprehensive services, including: in-floor heating design and installation Gas Fireplace inspections, repairs, sales, and installations residential plumbing needs including boiler service, sales, and installation tankless and tank water heaters sales, service, installation plumbing for additions and basements water service replacements sump pumps and battery backups water lines gas lines for natural & LP gas 24-hour service Where We Work We proudly serve Annapolis and Baltimore city as well as the following area counties: Anne Arundel Baltimore Harford Howard Carroll Prince George’s Montgomery Why Us? Whether you need service in the kitchen, bathroom or basement or as part of an addition, we’re the contractor offering: Over 20 years plumbing experience Maryland Master Plumber/Gas Fitter certification (#11644) Maryland Small Business Reserve membership PHCC member status Maryland PHCC Backflow Certification 24-hour emergency service