Best Local Plumbing, Heating & Cooling Company in McCordsville, IN
Plumbing or HVAC trouble throws off the whole day, so our team moves fast and fixes things right. Thornton Plumbing serves McCordsville homes and small businesses with licensed techs, clear communication, and clean work. Crews arrive in stocked vehicles, protect floors, and walk you through findings in plain language before any repair starts. The same visit can handle a leaky shutoff, a clogged kitchen line, a noisy furnace, or an AC that won’t keep up. Weekends bring their own surprises, so our office arranges weekend emergency service upon request. Technicians follow local codes, use quality parts, and test systems under real load so comfort lasts beyond today.
Call 317-697-9265 and get a neighborly pro who treats your home with care and solves the root cause, not just the symptom.
They got the job done professionally and efficiently

Comprehensive Plumbing Services for McCordsville Homes & Businesses
Water should flow quietly and predictably. Our plumbers handle fast diagnostics and durable fixes for leaks, drips, slow drains, and low pressure. Common work includes supply line and valve replacements, toilet rebuilds, garbage disposal repair, sump and ejector pump service, and water heater repair for tank and tankless models. Drain specialists clear tough clogs with safe tools and can camera-inspect lines to spot root intrusion, bellies, or grease buildup. Galvanized stub-outs near fixtures often cause rusty water; we replace those short runs with modern, code-approved materials that stay clean. Crews also correct out-of-date shutoffs, add accessible cleanouts, and set expansion control where needed. You get tight joints, quiet drains, and fixtures that work the way they should, without repeat visits.
Heating Services That Keep Winters Comfortable
Cold snaps test every weak spot in a heating system. Our technicians restore safe, steady heat with precise furnace and heat pump service. A typical visit includes a full safety check, blower cleaning, igniter and flame sensor testing, gas pressure verification, and duct airflow tuning so rooms heat evenly. Heat pumps receive defrost and reversing-valve checks to keep winter performance strong. Noisy starts, frequent cycling, or cold spots often trace back to airflow and control settings; we set fan speeds, calibrate thermostats, and seal obvious duct leaks that waste energy. Clear notes outline what we fixed today and what to plan for later, such as a tired inducer motor or a heat exchanger that needs closer monitoring. Your system runs quieter, uses less energy, and keeps the whole house cozy.
Air Conditioning Services Built for Hot Indiana Summers
Sticky August air makes small AC issues feel big. Our team cleans outdoor coils, sets blower speeds, and confirms refrigerant charge after airflow looks right, which brings down humidity and evens out room temperatures. Techs clear condensate lines, test float switches, and treat the drain to stop pan overflows that stain ceilings. Duct checks catch crushed flex, loose connections, and undersized returns that starve bedrooms of cool air. Ductless mini-split owners receive gentle coil cleaning, drain service, and error-code diagnosis to keep zones crisp without noise. Breaker trips at startup often point to weak capacitors or bad contactors; we test parts rather than guess. You get reliable cooling, steady temps, and a system that starts smoothly even during heat waves.
Common McCordsville Plumbing & HVAC Problems We Solve
Hot summers, spring storms, and busy households create patterns our techs know well. Here’s a quick snapshot of issues we fix every week:
- Sudden pressure drops and pulsing at faucets
- Kitchen sink backups and stubborn grease clogs
- Sump pump short cycling after heavy rain
- Toilet runs, ghost flushes, and rocking bases
- Brown water after utility work or a main flush
- Furnace short cycling and cold rooms at the far end of the house
- AC breaker trips at startup on hot afternoons
- Frozen indoor AC coils and water at the air handler
- High indoor humidity even with the AC running
- Ductless mini-split leaks or communication errors
Our process targets the cause, not just the symptom, and keeps your system stable after we leave.
About McCordsville, IN
McCordsville blends quick access to Greater Indianapolis with a small-town pace that families value. Neighborhoods grow along new corridors, and long-time streets still anchor community events and local schools. Summer brings lawn care and outdoor projects that shed dust and clippings near HVAC equipment; spring and fall deliver storm fronts that stress sumps and gutters. These local rhythms shape the way we tune heating and cooling and the way we protect plumbing against surges, backups, and freeze risk. Thornton Plumbing supports homeowners through those cycles with timely maintenance, smart upgrades, and friendly service that fits real life.