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PortlandTopRated / Paving & Asphalt

Black Diamond Sealcoating

★★★★★ 5 · 49 Google reviews · 940 NW Dunbar Ave #100

#2 in Paving & Asphalt
Rankings updated September 2026 from Google ratings and review volume - not paid placement
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Black Diamond Sealcoating Independent · Locally Owned Is this your business? Claim it free
940 NW Dunbar Ave #100, Troutdale, OR 97060, USA
Call 971-570-1206Visit website
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Why Black Diamond Sealcoating ranks here

Black Diamond Sealcoating holds a 5 star average across 49 Google reviews, which places it at #2 for paving and asphalt companies in Portland on our rankings. Positions come from verified public ratings and review volume. See the full list on the Paving & Asphalt rankings page.

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