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Seattle, Washington · Drains & sewer

Drain & sewer specialists in Seattle, WA

7 drain & sewer specialists in Seattle, out of 377 HVAC and plumbing businesses the Registry lists there. Ranked by Registry Score, owner-confirmed records first.

Pros
7
Avg. score
75.4
Scored
7

Summary

Data last updated

As of October 14, 2026, the ProComfort Registry lists 7 drain & sewer specialists in Seattle, Washington. Most-listed specialties: heating & furnaces (2). 7 have enough public signals for a Registry Score, averaging 75.4 out of 100; 5 score 70 or higher. Together they hold 1,796 public reviews on Google, Yelp and Facebook. The highest-scored is Raymark Plumbing & Sewer, at 88 out of 100. 2 are Featured for 2026. View Raymark Plumbing & Sewer.

Counts come straight from the Registry's records. How the Registry Score works

Showing 1–7 of 7

Drain & sewer specialists in Seattle: at a glance

How many drain & sewer specialists are in Seattle, Washington?
As of October 14, 2026, the ProComfort Registry lists 7 drain & sewer specialists in Seattle, Washington.
Who is the highest-scored drain and sewer specialist in Seattle, Washington?
By Registry Score, Raymark Plumbing & Sewer (Seattle, WA) ranks first at 88 out of 100, among 7 scored businesses averaging 75.4. The score combines public reviews (50 points), digital presence (30) and reach (20); nobody can pay for a higher score.
How are drain & sewer specialists in Seattle, Washington ranked?
By Registry Score (0-100, from public reviews, digital presence and reach), with records confirmed by their owners listed first. The full method is at https://procomfortregistry.online/methodology.

What this list includes: businesses whose public category or name points to drains, sewer lines, rooter, septic or hydro-jetting work. Tags come from each business's public category and name, so a company can appear under several trades. Drain & sewer specialists across the US