Is it safe to hire Mainstream Electric, Plumbing, Heating & Cooling?

Ownership doesn't determine the quality of the technician. It does determine the sales process. Get a written quote, decline same-day pressure, and compare with a verified independent.

Parity › Who owns it › Mainstream Electric, Plumbing, Heating & Cooling

Logo from its own website

On the record · owner not named on its home or about page

Who owns Mainstream Electric, Plumbing, Heating & Cooling?

Q: Is Mainstream Electric, Plumbing, Heating & Cooling family owned?

No. Mainstream Electric, Plumbing, Heating & Cooling is owned by T3 Services Group (The Riverside Company). The local name was kept after acquisition.

Q: Who owns Mainstream Electric, Plumbing, Heating & Cooling?

T3 Services Group (The Riverside Company). Acquisitions: 2022-01.

The short answer

Mainstream Electric, Plumbing, Heating & Cooling is owned by T3 Services Group (The Riverside Company). It is not an independent local business.

Acquisitions: 2022-01 · 7 brands under this parent

Quick facts

Company: Mainstream Electric, Plumbing, Heating & Cooling
Trade: Electrical / Plumbing / HVAC
Serves: Homes
Based in: Spokane, WA · All investor-owned companies in Washington → Also: Spokane Valley, WA
Owned by: T3 Services Group (The Riverside Company) · their site
Acquired: 2022-01
Ownership disclosed?: No: we found no mention of T3 Services Group (The Riverside Company) on the company’s home or about pages when we checked on 2026-10-24.

What its website says about its history

“Established in 2000, our team of licensed plumbers and NATE-certified technicians delivers quality you can trust.”

Company website, captured by script 2026-10-24 :: https://mainstreamhomeservices.com/

What it doesn’t say

Who has owned it since 2022: T3 Services Group (The Riverside Company), which acquired it in January 2022.

About Mainstream Electric, Plumbing, Heating & Cooling

Mainstream Electric, Plumbing, Heating & Cooling provides Electrical / Plumbing / HVAC services in Spokane, WA. It operates under its original local name and is owned by T3 Services Group (The Riverside Company).

What this means before you call

The name on the truck is not the owner. In investor-owned home-service groups, the price book, the sales process and the financing offers are usually set centrally, not at the local office. What to check before you sign →

Sources

T3 Services Group’s own site lists Mainstream Electric, Plumbing, Heating & Cooling: source (2026-10-24)
The Riverside Company's portfolio page: T3 Services Group (invested November 2020; add-ons listed): source (2020-11)
Mainstream Electric, Plumbing, Heating & Cooling's own website (its words about its history): source (2026-10-24)
Its own website shows this logo: source (2026-10-24)
Its own site lists 1 offices, also in Spokane Valley, WA: source (2026-10-26)

Other brands under T3 Services Group (The Riverside Company)

Radiant Plumbing and Air Conditioning Done Service Group Bulldog Rooter B. Carlson Heating, Air Conditioning & Plumbing 72 Degrees Air Conditioning, Heating & Plumbing Element Plumbing, Heating & Air

Parity is an editorial publication. Ownership facts are sourced from public filings and company-published material; we make no claim about the quality of any individual technician. Represent Mainstream Electric, Plumbing, Heating & Cooling or T3 Services Group (The Riverside Company)? Verify or contest this page · How we check · Corrections policy. Page generated 2026-10-26 from Parity’s records.