How many HVAC and plumbing companies are in Washington, DC?

The ProComfort Registry lists 206 heating, cooling and plumbing businesses serving Washington: 184 offering HVAC and 43 offering plumbing (some do both).

What is the average Registry Score in Washington?

Rated companies in Washington average 43.2 out of 100. The score combines public reviews (50 points), digital presence (30) and reach (20); nobody can pay for a higher score.

How are Washington companies ranked?

By Registry Score, with records confirmed by their owners listed first. See https://procomfortregistry.online/methodology for how the score is calculated.