We ran 6 HVAC contractor websites in Duluth, MN through the same SEO audit — PageSpeed, schema, mobile, on-page signals — and scored each 0–100. The average score was 72/100. Here's how they rank.
| # | Business | Score | Issues | |
|---|---|---|---|---|
| 1 | Design Heating, LLC | 80 | 2 | View audit → |
| 2 | Advantage Air Plumbing, Heating, & Cooling | 77 | 6 | View audit → |
| 3 | Northland Air | 71 | 8 | View audit → |
| 4 | Carlson Duluth Company | 69 | 7 | View audit → |
| 5 | Krause Heating & Cooling | 68 | 10 | View audit → |
| 6 | NorthStar Heating and Cooling | 64 | 11 | View audit → |
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