Is Plumbline Services family owned?

No. Plumbline Services is owned by Wrench Group, a private-equity-backed home services rollup (Leonard Green & Partners / TSG Consumer Partners / Oak Hill Capital). The local name was kept after acquisition.

Is it safe to hire Plumbline Services?

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

Parity › Who owns it › Plumbline Services

Logo from its own website

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

Who owns Plumbline Services?

Q: Who owns Plumbline Services?

Wrench Group, backed by Leonard Green & Partners / TSG Consumer Partners / Oak Hill Capital.

The short answer

Plumbline Services is owned by Wrench Group, a private-equity rollup backed by Leonard Green & Partners / TSG Consumer Partners / Oak Hill Capital. It is not an independent local business.

Quick facts

Company: Plumbline Services
Trade: HVAC / Plumbing / Electrical
Based in: Denver CO · All investor-owned companies in Colorado →
Owned by: Wrench Group · their site
Backed by: Leonard Green & Partners / TSG Consumer Partners / Oak Hill Capital
Ownership disclosed?: No: we found no mention of Wrench Group on the company’s home or about pages when we checked on 2026-10-14.

What its website says about its history

“Since 1998, Denver area homeowners have trusted our HVAC, plumbing, drain and electrical technicians to deliver the highest quality installation, repairs and maintenance needed to keep their homes comfortable.”

Company website, captured by script 2026-10-11 :: https://plumblineservices.com/

What it doesn’t say

Who owns it now: Wrench Group.

About Plumbline Services

Plumbline Services provides HVAC / Plumbing / Electrical services in Denver CO. It operates under its original local name and is owned by Wrench Group, a private-equity-backed home-services group (Leonard Green & Partners / TSG Consumer Partners / Oak Hill Capital).

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

Investcorp announces sale of The Wrench Group to Leonard Green: source (2019-04-08)
TSG Consumer Partners & Oak Hill partner with Leonard Green: source (2022)
Wrench Group brand list (24 brands): source (2026-09)
Wrench Group Our Story: source (2026-09)
Coolray About Us (no parent disclosed): source (2026-09)
Parker & Sons About Us (no parent disclosed): source (2026-09)
Wrench Group acquires Plumbline in Denver Colorado: source (n.d.)
Plumbline Services's own website (its words about its history): source (2026-10-11)
Its own website shows this logo: source (2026-10-15)

Other brands under Wrench Group

Buckeye Thomas & Galbraith Abacus Jarboe's Ragsdale Coolray Baker Brothers Berkeys CoolToday NexGen Air Conditioning & Plumbing Parker & Sons Comfort Wave

See all 29 Wrench Group brands →

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 Plumbline Services or Wrench Group? Verify or contest this page · How we check · Corrections policy. Page generated 2026-10-26 from Parity’s records · parent record verified September 2026.