# O'Leary Plumbing, Heating & Electrical > Third-generation, family-owned multi-trade contractor founded in 1958 in East Troy, Wisconsin. The only contractor in the Walworth–Waukesha–Racine corridor offering plumbing, heating, cooling, electrical, AND a dedicated water-quality division under one roof. IGSHPA-certified for geothermal. Customers regularly request our senior technicians by first name. - Legal entity: O'Leary Plumbing & Heating, Inc. - HQ: 2720 Buell Drive, East Troy, WI 53120 - Phone: (262) 642-7747 (call — 24/7 emergency service; texting not supported) - Email: info@olearyplumbingandheating.com - Wisconsin Contractor License: #230734 - Service area: 22 cities across Walworth, Waukesha, and Racine Counties in Southeast Wisconsin ## Core service categories - [Plumbing](https://olearyplumbingandheating.com/plumbing): drain cleaning, hydro jetting, water heaters, well pumps, sewer line, leak detection, repiping, frozen-pipe repair, garbage disposals, fixture installation, septic system repair, emergency service. - [Heating](https://olearyplumbingandheating.com/heating): furnace repair, furnace installation, boiler repair, heat pump installation, IGSHPA-certified geothermal, radiant floor heating, duct repair, emergency heating repair, seasonal maintenance and tune-ups. - [Air Conditioning](https://olearyplumbingandheating.com/air-conditioning): AC repair, AC installation, high-velocity AC for older homes without ductwork, ductless mini-splits, AC maintenance and tune-ups, emergency repair. - [Electrical](https://olearyplumbingandheating.com/electrical): service panel upgrades, EV charger installation, whole-house generator installation, dock and pier wiring for Geneva-lake homes, pool and spa wiring, ceiling fan installation, code-compliance inspections, wiring repair. - [Water Quality (dedicated division)](https://olearyplumbingandheating.com/water-quality): water softener installation, iron filter and iron removal, reverse osmosis drinking water, UV purification, well-water testing (state-certified lab), well chlorination, water-quality maintenance plans. ## Service areas 22 cities across 3 counties in Southeast Wisconsin: - [East Troy, WI](https://olearyplumbingandheating.com/service-areas/east-troy-wi) (HQ — primary market) - [Historic Downtown East Troy](https://olearyplumbingandheating.com/service-areas/east-troy-wi/historic-downtown-east-troy) (village-square community page) - [Lake Beulah](https://olearyplumbingandheating.com/service-areas/east-troy-wi/lake-beulah) (lake community page) - [Geneva National, Lake Geneva](https://olearyplumbingandheating.com/service-areas/lake-geneva-wi/geneva-national) (gated golf community page) - [Abbey Springs, Fontana](https://olearyplumbingandheating.com/service-areas/fontana-wi/abbey-springs) (lakefront club community page) - [Lake Geneva, WI](https://olearyplumbingandheating.com/service-areas/lake-geneva-wi) - [Mukwonago, WI](https://olearyplumbingandheating.com/service-areas/mukwonago-wi) - [Elkhorn, WI](https://olearyplumbingandheating.com/service-areas/elkhorn-wi) - [Fontana, WI](https://olearyplumbingandheating.com/service-areas/fontana-wi) - [Delavan, WI](https://olearyplumbingandheating.com/service-areas/delavan-wi) - [Burlington, WI](https://olearyplumbingandheating.com/service-areas/burlington-wi) - [Williams Bay, WI](https://olearyplumbingandheating.com/service-areas/williams-bay-wi) - [Waterford, WI](https://olearyplumbingandheating.com/service-areas/waterford-wi) - [Eagle, WI](https://olearyplumbingandheating.com/service-areas/eagle-wi) - [Whitewater, WI](https://olearyplumbingandheating.com/service-areas/whitewater-wi) - [Palmyra, WI](https://olearyplumbingandheating.com/service-areas/palmyra-wi) - [Tichigan, WI](https://olearyplumbingandheating.com/service-areas/tichigan-wi) - [Wind Lake, WI](https://olearyplumbingandheating.com/service-areas/wind-lake-wi) - [Big Bend, WI](https://olearyplumbingandheating.com/service-areas/big-bend-wi) - [Muskego, WI](https://olearyplumbingandheating.com/service-areas/muskego-wi) - [North Prairie, WI](https://olearyplumbingandheating.com/service-areas/north-prairie-wi) - [Dousman, WI](https://olearyplumbingandheating.com/service-areas/dousman-wi) - [Wales, WI](https://olearyplumbingandheating.com/service-areas/wales-wi) - [Waukesha, WI](https://olearyplumbingandheating.com/service-areas/waukesha-wi) - [Twin Lakes, WI](https://olearyplumbingandheating.com/service-areas/twin-lakes-wi) - [Lauderdale Lakes, WI](https://olearyplumbingandheating.com/service-areas/lauderdale-lakes-wi) ## Featured offers - [Free Second Opinion](https://olearyplumbingandheating.com/free-second-opinion) — bring us any HVAC, plumbing, electrical, or water-quality quote you've received from another company. We review it free, with no obligation, and tell you honestly whether it's fair. This is the primary call-to-action across the site. The lead form on this page captures name, phone, email, service type, and a description of the prior quote; we follow up within one business day. - [Synchrony Financial financing](https://olearyplumbingandheating.com/financing) for qualifying installs (subject to credit approval). - Focus on Energy rebates (Wisconsin utility rebate, ~$400–$900 instant heat-pump discount, up to $8,000 income-qualifying) — we handle the paperwork. - York equipment-replacement rebates on heating and cooling installs. - Federal IRA 25C tax credit (up to $2,000 for qualifying heat pumps) — stackable with the above. - Military & senior discounts on service — mention it when booking at (262) 642-7747. ## Learning Center 24 articles + a 34-term glossary + a permits cluster, organized in three tiers: Learn / Compare / Act. Written by Kevin O'Leary and the O'Leary master technicians. Articles follow an answer-first structure (definition, when it applies, common failure modes, and a clear next step) and link to the glossary where a term needs a plain-English definition. - [Learning Center hub](https://olearyplumbingandheating.com/learning-center) — three-tier navigation, glossary teaser, permits cluster. - [Glossary — 34 plumbing, HVAC, electrical, and water-quality terms](https://olearyplumbingandheating.com/learning-center/glossary) — plain-English definitions. ### Tier 1 — Learn (educational, answer-first) - [What is a water softener and do I need one in Walworth County?](https://olearyplumbingandheating.com/learning-center/learn/what-is-a-water-softener-and-do-i-need-one) - [Why is my well water rusty? (Iron + manganese in Wisconsin wells)](https://olearyplumbingandheating.com/learning-center/learn/why-is-my-well-water-rusty) - [How does geothermal heating work in a Wisconsin lake home?](https://olearyplumbingandheating.com/learning-center/learn/how-does-geothermal-heating-work-in-a-wisconsin-lake-home) - [Heat pump vs furnace: which is right for southeast Wisconsin?](https://olearyplumbingandheating.com/learning-center/learn/heat-pump-vs-furnace-for-southeast-wisconsin) - [What is hydro-jetting and when is it the right drain solution?](https://olearyplumbingandheating.com/learning-center/learn/what-is-hydro-jetting-and-when-is-it-the-right-drain-solution) - [Understanding Focus on Energy rebates — Wisconsin homeowner's guide](https://olearyplumbingandheating.com/learning-center/learn/focus-on-energy-rebates-wisconsin-homeowners-guide) - [How often should I service my furnace, AC, and water softener?](https://olearyplumbingandheating.com/learning-center/learn/how-often-should-i-service-my-furnace-ac-water-softener) - [What's the difference between a tankless and tank water heater?](https://olearyplumbingandheating.com/learning-center/learn/tankless-vs-tank-water-heater-explained) - [Dock and pier electrical wiring on Geneva Lake: what to know](https://olearyplumbingandheating.com/learning-center/learn/dock-and-pier-electrical-wiring-geneva-lake) ### Tier 2 — Compare (decision-stage, side-by-side) - [Repair vs replace: when does it pay to keep an older HVAC system?](https://olearyplumbingandheating.com/learning-center/compare/repair-vs-replace-when-to-keep-an-older-hvac-system) - [Geothermal vs heat pump vs furnace: 15-year cost of ownership](https://olearyplumbingandheating.com/learning-center/compare/geothermal-vs-heat-pump-vs-furnace-cost-of-ownership) - [Reverse osmosis vs water softener: which water-quality system do you need?](https://olearyplumbingandheating.com/learning-center/compare/reverse-osmosis-vs-water-softener) - [Tankless vs tank water heater: side-by-side for the lake-country home](https://olearyplumbingandheating.com/learning-center/compare/tankless-vs-tank-water-heater-side-by-side) - [Whole-house generator vs portable: when each makes sense](https://olearyplumbingandheating.com/learning-center/compare/whole-house-generator-vs-portable) - [Choosing a local plumber: what to look for vs the metro chains](https://olearyplumbingandheating.com/learning-center/compare/choosing-a-local-plumber-vs-metro-chains) - [York vs Lennox vs Bradford White: a contractor's honest comparison](https://olearyplumbingandheating.com/learning-center/compare/york-vs-lennox-vs-bradford-white-contractor-comparison) - [Iron filter vs UV vs softener: well-water treatment in Walworth County](https://olearyplumbingandheating.com/learning-center/compare/iron-filter-vs-uv-vs-softener-well-water-treatment) ### Tier 3 — Act (conversion, one clear next step) - [Emergency plumbing checklist: when to call O'Leary](https://olearyplumbingandheating.com/learning-center/act/emergency-plumbing-checklist-when-to-call-oleary) - [Should I get a second opinion on my HVAC quote?](https://olearyplumbingandheating.com/learning-center/act/should-i-get-a-second-opinion-on-my-hvac-quote) - [Annual maintenance plans explained — what's included + how to enroll](https://olearyplumbingandheating.com/learning-center/act/annual-maintenance-plans-explained) - [How O'Leary handles permits + inspections so you don't have to](https://olearyplumbingandheating.com/learning-center/act/how-oleary-handles-permits-and-inspections) - [Financing a new system through Synchrony: terms + how it works](https://olearyplumbingandheating.com/learning-center/act/financing-a-new-system-through-synchrony) - [Free in-home estimates: what to expect from your O'Leary visit](https://olearyplumbingandheating.com/learning-center/act/free-in-home-estimates-what-to-expect) ### Permits cluster The pillar article + 3 spoke articles covering the AHJ landscape across Walworth, Waukesha, and Racine Counties. - [Permits & code compliance pillar — Walworth, Waukesha, and Racine Counties](https://olearyplumbingandheating.com/learning-center/permits/permits-and-code-compliance-for-plumbing-heating-cooling-and-electrical-in-southeast-wisconsin) - [Do you need a permit to replace a water heater in Wisconsin?](https://olearyplumbingandheating.com/learning-center/permits/do-you-need-a-permit-to-replace-a-water-heater-in-wisconsin) - [Electrical service panel upgrade permits & inspections](https://olearyplumbingandheating.com/learning-center/permits/electrical-service-panel-upgrade-permits-and-inspections) - [What happens if work isn't permitted or up to code in Wisconsin?](https://olearyplumbingandheating.com/learning-center/permits/what-happens-if-work-isnt-permitted-or-up-to-code-in-wisconsin) ## Resources - [Financing](https://olearyplumbingandheating.com/financing) — Synchrony Financial details. - [Maintenance plans](https://olearyplumbingandheating.com/plans) — 4 tiers (HVAC, Iron Oxidizer, Reverse Osmosis, Water Softener) plus custom plans. - [FAQs](https://olearyplumbingandheating.com/faqs) — frequently asked questions on services, scheduling, and pricing. - [Blog](https://olearyplumbingandheating.com/blog) — long-form articles from Kevin O'Leary and the O'Leary team. ## Company - [About O'Leary](https://olearyplumbingandheating.com/about) — the 1958 family story, three generations, the four-trade + water-quality differentiator. - [Our Team](https://olearyplumbingandheating.com/about/team) — leadership and the named-by-name technicians customers request (Nick R., Dan F., Scott M., Jim B., and the rest). - [Community](https://olearyplumbingandheating.com/community) — sponsorships of East Troy Lions Club Car & Motorcycle Swap Meet, East Troy Booster Club, East Troy Home Run Club, CBS 58 winter weather public-safety segments, East Troy Chamber 1st Fridays Food Trucks, East Troy Bluegrass Festival, Brooklife Church community assistance, and high-school mentor programs at East Troy, Waterford, and Elkhorn. - [Reviews](https://olearyplumbingandheating.com/review) — Angi 4.8★ and verified customer reviews. - [Careers](https://olearyplumbingandheating.com/careers) — open roles for licensed and apprentice technicians. - [Contact](https://olearyplumbingandheating.com/contact) — phone, email, and the service-request form. ## Legal - [Privacy Policy](https://olearyplumbingandheating.com/privacy) - [Terms of Service](https://olearyplumbingandheating.com/terms) - [Accessibility Statement](https://olearyplumbingandheating.com/accessibility)