A G O'Brien Plumbing & Heating Co
Duluth, MN AC Replacement · #1 of 4 · 92+ yrs
ⓘVouched Score is calculated from publicly available signals: Google rating & review count, Yelp rating, BBB grade, review sentiment, years in business, local search ranking, and provider website content. Not a guarantee of service quality.Embed this score
⏱ 92+ years in business
Review sentiment: 90/100
Overview
A G O'Brien lists central AC replacements and full-system installs for Duluth homes.
Central AC replacement and residential HVAC service across the Duluth metro and Northland. Heritage: 90+ years serving Duluth-area homes. Free estimates available (per site).
Score breakdown
Above the Duluth, MN AC Replacement average of 73/100. Ranks #1 of 4 listed AC Replacement providers in Duluth, MN.
Editorial Review
69
46%
Google Rating
93
17%
Local Search Rank
100
9%
Review Sentiment
90
15%
Years in Business
100
4%
Review Volume
71
9%
Composite of public-record signals (BBB, license records), customer review signals (Google, Yelp), and editorial assessment of provider profile. See full methodology →
vs. Duluth average
| Signal | A G O'Brien Plumbing … | Duluth avg | Delta |
|---|---|---|---|
| Vouched Score | 81/100 | 73/100 | +8 vs avg |
| Google rating | 4.8★ | 4.8★ | matches city average |
| Review volume | 405+ | 155+ | +248 vs avg |
| Years in business | 92+ | 14+ | +78 vs avg |
Pros
Strengths
- High Google rating (4.8★ across 405+ reviews)
- Long-established (92+ years in business)
When to choose them
- You value a long-tenured local operator (92+ years in business)
Services
Service area
Duluth, MNhome
Contact & hours
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🌐
✉️
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Call for hours
Frequently asked questions
What are the pros of A G O'Brien Plumbing & Heating Co?
Based on public records and customer reviews: High Google rating (4.8★ across 405+ reviews); Long-established (92+ years in business); Free estimates.
When should I choose A G O'Brien Plumbing & Heating Co?
Choose them if: You value a long-tenured local operator (92+ years in business).
What is the Vouched Score for A G O'Brien Plumbing & Heating Co?
81/100. Top contributing signals: Google Position 100/100, Years In Business 100/100, Google Rating 93/100. The score blends public-record signals (BBB, license records), customer review signals (Google, Yelp), and editorial assessment.
How long has A G O'Brien Plumbing & Heating Co been in business?
A G O'Brien Plumbing & Heating Co has been operating for 92+ years in Duluth, MN.
How can I contact A G O'Brien Plumbing & Heating Co?
Call A G O'Brien Plumbing & Heating Co at +1-218-729-9662. Address: 4907 Lightning Dr, Duluth, MN 55811, USA.
What does AC replacement service typically cost when working with a Duluth, MN provider like A G O'Brien Plumbing & Heating Co?
Full AC system replacement typically runs $5,700–$13,500, and AC condenser replacement runs $1,250–$4,350 in Duluth, Minnesota. These are area-wide market estimates, not A G O'Brien Plumbing & Heating Co's quotes. For an exact price, request a written estimate from A G O'Brien Plumbing & Heating Co.
What pricing terms does A G O'Brien Plumbing & Heating Co publish on their website?
A G O'Brien Plumbing & Heating Co's website publishes: Free estimates. Promotions and plans change — confirm currently-available terms with A G O'Brien Plumbing & Heating Co before acting.
Does A G O'Brien Plumbing & Heating Co do AC Replacement in Duluth, MN?
Yes. A G O'Brien Plumbing & Heating Co lists AC Replacement among its services and serves Duluth, MN and Replacement Duluth, MN. Call +1-218-729-9662 for a quote.
Compare with nearby providers
| Provider | Vouched | Years | |
|---|---|---|---|
A G O'Brien Plumbing & Heating Co (this company) 🏆 Highest Score |
81/100 | 4.8★ (405+) | 92+ |
Advantage Air Plumbing, Heating, & Cooling ⭐ Honest Replace-vs-Repair |
68/100 | 4.6★ (65+) | 12+ |
NorthStar Heating and Cooling ⭐ Best for Full-System Changeout |
79/100 | 4.8★ (380+) | 27+ |
| 72/100 | 5.0★ (80+) | 5+ |
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Profile last updated July 27, 2026.