Madison, OH

Madison's Trusted Plumbing & Heating Company

AJ Parker Plumbing & Heating has been a Lake County institution since 1905, when OD Parker first started serving local families with quality work and fair prices. Six generations later, we’re still family-owned and still doing business the same way—showing up when we say we will, fixing problems correctly the first time, and charging what we quoted. We understand Madison homes and the challenges they face, from Lake Erie’s humidity testing your AC in summer to bitter winter winds pushing your heating system to its limits. Whether you need emergency service in the middle of the night or want to schedule routine maintenance, we bring 120 years of local experience to every job.

Comprehensive Heating Services for Madison, OH

Your heating system takes a beating during Ohio winters, and we make sure it’s ready for the challenge. We install, repair, and maintain all types of furnaces and boilers, working with every major manufacturer and specializing in Rheem and Ruud equipment. Annual maintenance before winter arrives helps prevent expensive emergency repairs on the coldest nights, and when your system does fail, our 24/7 emergency service gets your heat restored quickly.

Keeping Your Madison Home Cool All Summer Long

To counter Madison’s hot and humid summers, we install central air conditioning systems sized correctly for your home’s square footage and layout, maintain existing equipment to keep it running at peak efficiency, and handle repairs when breakdowns occur. For homes without ductwork or areas needing separate temperature control, ductless mini-split systems offer flexible, energy-efficient cooling.

Plumbing Services - Repair, Installation & Emergency Services

From minor annoyances to major emergencies, we handle every type of plumbing problem. Our 24/7 emergency service means you can reach us immediately when dealing with burst pipes, backed-up sewers, or failed water heaters. We install both traditional tank water heaters and space-saving tankless units, repair leaks of any size, and use advanced detection equipment to locate hidden water problems before they cause serious property damage.

Backflow Testing & Prevention - Stop Backflow Issues Before they’re a Problem

Contaminated water flowing backward into your clean water supply poses serious health risks. Backflow prevention devices stop this from happening, and many Madison properties with irrigation systems or certain plumbing configurations need them by law. We install these critical devices, perform the annual testing local authorities require, and handle all documentation to keep you compliant and your drinking water protected.

Expert Boiler Services

Many Madison homes still rely on boiler heating systems, and these require technicians who genuinely understand how they work. We’ve serviced every type of boiler from century-old cast iron radiators to modern high-efficiency condensing units. Whether you need annual maintenance to keep your system running reliably, emergency repairs to restore heat, or honest advice about when replacement makes better financial sense than another repair, we’ll give you straight answers.

Why Madison Homeowners Choose Us

120 Years in Business: We’ve been serving Lake County continuously since 1905 because we do what we say and treat people fairly. That’s the only secret to six generations of success.

Honest Advice: We’ll tell you when a repair solves your problem cost-effectively and when replacement makes better long-term financial sense. The decision is always yours, and we respect whichever choice you make.

All Major Brands: While we have deep expertise with Rheem and Ruud equipment, we service every major HVAC and plumbing brand. Whatever’s installed in your home, our technicians can maintain and repair it.

Budget-Friendly Options: Major repairs and new installations can be expensive, so we offer financing to spread costs over time. Military members and seniors receive 5% discounts, and we run seasonal specials throughout the year.

Schedule Service Now

Emergency repairs or planned maintenance—we’re ready to help Madison homeowners with expertise earned over more than a century. Six generations of Lake County families have trusted AJ Parker Plumbing & Heating for honest, reliable service that gets the job done right.