This guide compares ten plumbing companies serving Baltimore, MD while preserving the original article's companies and order. It is designed for shortlisting, not as a claim that every option was personally tested. Compare current credentials, written terms, total cost, availability and the category-specific questions below before choosing.
Quick comparison of 10 plumbing companies
| # | Company | Published location | Published phone | Website |
|---|---|---|---|---|
| 1 | Mahon Plumbing Inc. | Baltimore, MD | 410-766-8566 | Website |
| 2 | Heil Plumbing | Baltimore, MD | 443-305-7861 | Website |
| 3 | Seadmok Water Construction | Baltimore, MD | 443-328-4440 | Website |
| 4 | Millenium Plumbing | Baltimore, MD | 410-265-8833 | Website |
| 5 | Warrior Plumber & Heating Inc. | Baltimore, MD | 443-967-3736 | Website |
| 6 | Mr. Rooter of Maryland | Baltimore, MD | 4106928267 | Website |
| 7 | Len The Plumber Heating & Air | Baltimore, MD | (888) 861-2394 | Website |
| 8 | Benjamin Franklin Plumbing | Baltimore, MD | (301) 691-3889 | Website |
| 9 | Catons Plumbing | Baltimore, MD | 410-355-5410 | Website |
| 10 | Roto-Rooter Plumbing & Water Clean Up | Baltimore, MD | 410-864-0435 | Website |
How this guide was refreshed
This July 30, 2026 editorial rebuild preserves the ten names and their original order. The order is not a newly calculated quality ranking. Maryland Recommendations did not hire, test or independently audit every listed business. Payment does not purchase rank, remove cautions or guarantee visibility. The useful contribution is a consistent comparison framework, clearer contact data, official verification resources and questions readers can use before committing.
Compare licensing, diagnostic charges, permits and repair scope. Every reader's priorities differ, so shortlist two or three options and ask each one the same questions. Written answers are easier to compare than promotional claims or star ratings alone.
The 10 plumbing companies in this guide
1. Mahon Plumbing Inc.
Mahon Plumbing Inc. is retained from the original Maryland Recommendations list. Use the published details below as a starting point, then confirm which license covers this work and what exactly is included and excluded. Availability, staff, services, prices and policies can change, so obtain current written information before booking, signing or paying.
Published location: Baltimore, MD
Published phone: 410-766-8566
Website: Visit the company website
2. Heil Plumbing
Consider Heil Plumbing as one option for plumbing work. During the first conversation, confirm what exactly is included and excluded. Before making a decision, also ask who obtains permits and manages inspections. This page does not claim first-hand testing or guarantee service quality; the listing is a contact and comparison aid.
Published location: Baltimore, MD
Published phone: 443-305-7861
Website: Visit the company website
3. Seadmok Water Construction
Seadmok Water Construction appears here in the original article’s order, not as the result of a paid position or a hidden quality score. Compare the business on the same criteria used for every listing: who obtains permits and manages inspections, how are changes, delays and warranty claims handled, written terms and current contact information.
Published location: Baltimore, MD
Published phone: 443-328-4440
Website: Visit the company website
4. Millenium Plumbing
Millenium Plumbing is retained from the original Maryland Recommendations list. Use the published details below as a starting point, then confirm how are changes, delays and warranty claims handled and which license covers this work. Availability, staff, services, prices and policies can change, so obtain current written information before booking, signing or paying.
Published location: Baltimore, MD
Published phone: 410-265-8833
Website: Visit the company website
5. Warrior Plumber & Heating Inc.
Consider Warrior Plumber & Heating Inc. as one option for plumbing work. During the first conversation, confirm which license covers this work. Before making a decision, also ask what exactly is included and excluded. This page does not claim first-hand testing or guarantee service quality; the listing is a contact and comparison aid.
Published location: Baltimore, MD
Published phone: 443-967-3736
Website: Visit the company website
6. Mr. Rooter of Maryland
Mr. Rooter of Maryland appears here in the original article’s order, not as the result of a paid position or a hidden quality score. Compare the business on the same criteria used for every listing: what exactly is included and excluded, who obtains permits and manages inspections, written terms and current contact information.
Published location: Baltimore, MD
Published phone: 4106928267
Website: Visit the company website
7. Len The Plumber Heating & Air
Len The Plumber Heating & Air is retained from the original Maryland Recommendations list. Use the published details below as a starting point, then confirm who obtains permits and manages inspections and how are changes, delays and warranty claims handled. Availability, staff, services, prices and policies can change, so obtain current written information before booking, signing or paying.
Published location: Baltimore, MD
Published phone: (888) 861-2394
Website: Visit the company website
8. Benjamin Franklin Plumbing
Consider Benjamin Franklin Plumbing as one option for plumbing work. During the first conversation, confirm how are changes, delays and warranty claims handled. Before making a decision, also ask which license covers this work. This page does not claim first-hand testing or guarantee service quality; the listing is a contact and comparison aid.
Published location: Baltimore, MD
Published phone: (301) 691-3889
Website: Visit the company website
9. Catons Plumbing
Catons Plumbing appears here in the original article’s order, not as the result of a paid position or a hidden quality score. Compare the business on the same criteria used for every listing: which license covers this work, what exactly is included and excluded, written terms and current contact information.
Published location: Baltimore, MD
Published phone: 410-355-5410
Website: Visit the company website
10. Roto-Rooter Plumbing & Water Clean Up
Roto-Rooter Plumbing & Water Clean Up is retained from the original Maryland Recommendations list. Use the published details below as a starting point, then confirm what exactly is included and excluded and who obtains permits and manages inspections. Availability, staff, services, prices and policies can change, so obtain current written information before booking, signing or paying.
Published location: Baltimore, MD
Published phone: 410-864-0435
Website: Visit the company website
How to compare your shortlist
Applicable Maryland license and local permits
Ask which license covers this work. Request a specific answer tied to your project, appointment, purchase or visit rather than relying on a general promise. Record the response so every option is judged consistently.
Written scope, materials and exclusions
Ask what exactly is included and excluded. Request a specific answer tied to your project, appointment, purchase or visit rather than relying on a general promise. Record the response so every option is judged consistently.
Insurance, subcontractors and site protection
Ask who obtains permits and manages inspections. Request a specific answer tied to your project, appointment, purchase or visit rather than relying on a general promise. Record the response so every option is judged consistently.
Payment milestones, change orders and warranty
Ask how are changes, delays and warranty claims handled. Request a specific answer tied to your project, appointment, purchase or visit rather than relying on a general promise. Record the response so every option is judged consistently.
Official sources and independent verification
Use primary sources for credentials, consumer protections and category rules. A business website or directory profile is not a substitute for an official record.
A practical selection checklist
- Define the exact outcome, location, timing and budget before contacting anyone.
- Shortlist at least two or three options that appear to serve the need.
- Verify applicable licenses, credentials, insurance or inspection records using the official sources above.
- Ask every option the same category-specific questions and keep the answers.
- Request written scope, exclusions, total charges, payment timing and cancellation terms.
- Confirm who performs the work or service and who handles problems afterward.
- Read the final agreement before paying a deposit or authorizing work.
Related Maryland guides
Frequently asked questions
How should I shortlist plumbers in Baltimore?
Start with the ten published options, remove businesses that do not match your location or need, then compare two or three on the same questions. Verify current credentials where applicable, request written terms and confirm who will actually provide the service. Convenience matters, but it should not replace documentation and fit.
What should I verify before choosing?
Confirm the business and individual license through Maryland's official licensing portal, then verify permits with the local jurisdiction.
What should a written estimate or agreement include?
A useful written estimate identifies labor, materials, quantities, allowances, exclusions, permits, schedule, payment milestones and warranty terms.
Should I choose only by price or online reviews?
No. Price and reviews are useful signals, but neither proves current fit, licensing, availability or contract quality. Compare the complete scope, exclusions, responsible provider, total cost, policies, communication and verification records. Treat unusually vague or urgent sales pressure as a reason to slow down and request documentation.
How current are these plumbing companies details?
This page was substantively refreshed on July 30, 2026. Company names, locations, phones, websites and policies can change after publication. Confirm every decision-making detail directly, especially credentials, ownership, availability, prices, deposits, cancellation terms and the identity of the person who will perform the work.
