What's essential to you is essential to us.
Family-owned since 1958. 3 generations under one roof. What's essential to you is essential to us — and that's the only mission O'Leary has ever had.
A simple promise, three generations old.
The O'Leary family started this company in 1958 with one idea: take care of your neighbors the way you'd take care of your own. 3 generations later, the promise hasn't changed — only the trades have grown.
Our Mission
For three generations we've treated every home in our lake-country communities like our own. Plumbing, heating, cooling, water and electrical — what's essential to you is essential to us.
Our Vision
To be the one family-owned name our neighbors trust for every essential system under their roof — for the next 65 years.
From a single handshake to a four-trade team.
In 1958, the O'Leary family hung out a single plumber's shingle in East Troy. The promise was simple — answer the phone, show up on time, treat the home like it's your own — and word travels fast in lake country.
Kevin O'Leary, now the third-generation owner, joined the company in 1993 as a licensed plumber. Today he runs the whole operation: plumbing, heating, cooling, water quality and electrical — all under one trusted, family-owned name. Same people, same values, more ways to help.
"What's Essential to You is Essential to Us"
Built like a true full-service company.
Most home-services companies do one or two trades and sub the rest. We run our own crews across every essential system in your home — so the handoff between a plumbing problem and the electrical fix doesn't fall on you.
Plumbing
Our own dedicated crew. No subs.
Heating
Our own dedicated crew. No subs.
Cooling
Our own dedicated crew. No subs.
Electrical
Our own dedicated crew. No subs.
The name on the truck is the name that answers the phone.
Across the country, regional plumbing, HVAC, and electrical companies are getting bought up and rolled into private-equity-backed brand portfolios. Different name on the truck this year, different prices next year, different owners three years from now. O'Leary is not that company — and never will be.
What you get from us
- A Kevin you can ask for by name — owner, third-generation, master plumber.
- Prices set by the work in front of you, not by a quarterly revenue target.
- Technicians who stick around — most of our team has 10+ years on the trucks.
- A company whose roots are right here in East Troy, not in a PE office downtown.
What private-equity rollups give you
- A new owner every 3-5 years and a new name on the truck.
- Pricing built to hit a corporate revenue target, not to fix the problem.
- Tech turnover — different name on the work order every visit.
- A call center in another state, answering your call as if they know the lake.
Customers ask for these folks specifically.
That's what happens when the same person fixes your problem twice — you remember their name. Ask for any of them by name when you call.
Nick R.
Service Technician — request-by-name
Dan F.
Service Technician — request-by-name
Scott Martin
Water Quality Manager — request-by-name as 'Scott M.'
Jim Burnham
Electrical Manager — request-by-name as 'Jim B.'
Nathan
Service Technician
Jacob
Service Technician
One call for every essential system.
Call O'Leary or request service online and a real team member will help you schedule. Free installation estimates and 24/7 emergency service across East Troy, WI and the surrounding lake country.