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A G O'Brien Plumbing & Heating Co
Duluth, MN
heatingAdditional Information
A.G. O'Brien Plumbing & Heating Co. has been serving The Northland since 1934, providing plumbing, heating, cooling, and HVAC system installation, replacement, repair, and maintenance services.
Services
Established 1934 · Serving Saint Louis County, Douglas County, Carlton County, Pine County, Itasca County +2 more
Additional information extracted from the firm's public website. Last updated: August 10, 2026
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Frequently Asked Questions
How much does a plumber cost in Duluth?
Most plumbers charge $80-$150/hour for standard work in major North American markets. Emergency and after-hours calls typically cost more. Always get at least 2-3 quotes for larger jobs like renovations.
Do I need a licensed plumber in Duluth?
Yes — plumbing work must be done by a licensed plumber in most jurisdictions. In Canada, this means a licensed journeyman plumber; in the US, licensing requirements vary by state. Unlicensed work can void your insurance and create safety hazards.
What counts as a plumbing emergency?
Burst pipes, major water leaks, sewer backups, no water at all, and gas leaks are emergencies. If you smell gas, leave the building and call 911 first, then your gas company.
Should I fix it myself or call a plumber?
Simple tasks like replacing a faucet washer or unclogging a drain with a plunger are DIY-friendly. Anything involving water supply lines, sewer connections, gas lines, or behind walls should go to a licensed plumber.
How do I find a good plumber?
Check for a valid licence, ask for proof of insurance, read reviews, and get written quotes. Our directory shows ratings and reviews to help you compare.
What is backflow prevention?
Backflow prevention devices stop contaminated water from flowing back into the clean water supply. Many municipalities require annual testing by a certified plumber — check your local bylaws or codes for specific requirements.