Kevin O.
Owner / President
Owner and President. Master plumber, IGSHPA-certified geothermal installer, with O'Leary since 1993.
Our Team
The Family Behind O'Leary
Three generations of plumbers, HVAC techs, electricians, and water-quality specialists, all on staff. No subcontractors. No anonymous trucks.
28+
Team members on staff
1958
Family-owned since
3
Generations
4
Trades under one roof
Leadership
9 people 
Jason N.
Service Manager
Service Manager — coordinates the plumbing, heating, cooling, and electrical service crews across Wisconsin's lake country.
Jim B.
Electrical Manager
Electrical Manager — leads the electrical division across panel upgrades, generator installs, EV chargers, and dock / pier wiring.
Scott M.
Water Quality Manager
Water Quality Manager — softeners, iron filters, reverse-osmosis drinking systems, UV, and well-water testing across the lake country.
Rick B.
Plumbing Construction Manager
Plumbing Construction Manager — leads new-construction and remodel plumbing projects, from custom homes to commercial fit-outs.
Ryan W.
HVAC Project Manager
HVAC Project Manager — runs HVAC installs and replacements for new builds and major remodels.
Jeff B.
HVAC Comfort Advisor
HVAC Comfort Advisor — walks homeowners through replacement options, sizing, efficiency, and rebates so the right system shows up the first time.
Gary B.
Accounting Manager
Accounting Manager — runs the books and keeps the trade billing clean.
Ashlee K.
Office Manager
Office Manager — keeps the schedule humming and makes sure every customer call lands on the right tech.
HVAC Service
2 people
Andrew C.
HVAC Service Technician
HVAC service technician — furnaces, air conditioners, heat pumps, repairs, tune-ups.
Justin O.
HVAC Service Technician
HVAC service technician — furnaces, air conditioners, heat pumps, repairs, tune-ups.
Plumbing Service
5 people
Nick R.
Plumbing Service Technician
Plumbing service technician — drains, water heaters, well pumps, repairs. Customers ask for Nick by name.
Dan F.
Plumbing Service Technician
Plumbing service technician — drains, water heaters, well pumps, repairs. Customers ask for Dan by name.
Jacob W.
Plumbing Service Technician
Plumbing service technician — drains, water heaters, well pumps, repairs.
Jake O.
Plumbing Service Technician
Plumbing service technician — drains, water heaters, well pumps, repairs.
Nathan B.
Plumbing Service Technician
Plumbing service technician — drains, water heaters, well pumps, repairs. Customers ask for Nathan by name.
HVAC Construction
4 people
Cody M.
HVAC Construction Installer
HVAC construction installer — new builds, replacements, complex retrofits.
Devin R.
HVAC Construction Installer
HVAC construction installer — new builds, replacements, complex retrofits.
Kyle B.
HVAC Construction Installer
HVAC construction installer — new builds, replacements, complex retrofits.
Ryan B.
HVAC Construction Installer
HVAC construction installer — new builds, replacements, complex retrofits.
Plumbing Construction
4 people
Brock H.
Plumbing Construction Installer
Plumbing construction installer — new-construction rough-ins, repipes, water-quality system installs.
Eric B.
Plumbing Construction Installer
Plumbing construction installer — new-construction rough-ins, repipes, water-quality system installs.
Jason H.
Plumbing Construction Installer
Plumbing construction installer — new-construction rough-ins, repipes, water-quality system installs.
Mike H.
Plumbing Construction Installer
Plumbing construction installer — new-construction rough-ins, repipes, water-quality system installs.
Office
4 people
Sheryl F.
Office Team
Office team — scheduling, dispatch, and customer follow-up.
Becky L.
Office Team
Office team — scheduling, dispatch, and customer follow-up.
Judy B.
Office Team
Office team — scheduling, dispatch, and customer follow-up.
Sarina U.
Office Team
Office team — scheduling, dispatch, and customer follow-up.
Pure Comfort Since 1958
Want to meet us in person?
Every technician in every photo is on staff, on payroll, and ready to take care of your home. Schedule a visit and you'll meet one of them at your door.
Licensed, Bonded & Insured 24/7 Emergency Service