Trusted Plumbing, Heating & Cooling, in Danville, IL
When it comes to reliable home comfort, Lanz Plumbing, Heating & Cooling is the name Danville residents trust. For over 20 years, our licensed technicians have provided professional plumbing, HVAC, drain, and underground solutions backed by quality workmanship and friendly service. From emergency repairs to new system installations, we’re here to keep your home safe, comfortable, and efficient year-round.
Call 217-394-1380 or contact us online to book your next service in Danville, IL.
Plumbing Repair & Installation in Danville, IL
Your home’s plumbing system deserves expert care. Lanz offers comprehensive plumbing services in Danville designed to prevent leaks, improve efficiency, and extend the life of your fixtures.
Our plumbing services include:
- Fixture Installation & Replacement – Stylish, water-efficient upgrades for faucets, sinks, and toilets.
- Water Line & Repiping Services – Replace aging or corroded lines to restore strong, clean water flow.
- Sump Pump Installation & Backups – Protect basements from flooding with reliable Liberty sump pumps and alarms.
Whether you’re remodeling or dealing with an urgent leak, call Lanz for fast, dependable plumbing help in Danville.
Stay Warm All Winter With Heating Services in Danville, IL
Illinois winters can be tough, but Lanz makes it easy to stay cozy. We provide full-service heating installation, repair, and maintenance to keep your furnace or boiler performing at its best.
Our heating experts specialize in:
- Furnace Repairs & Replacements – Get fast, affordable heating solutions for every home and budget.
- Boiler Service & Upgrades – Improve efficiency and reduce heating costs with expert boiler care.
- Heat Pump Installation – Year-round comfort with high-efficiency electric systems.
- Seasonal Maintenance Plans – Prevent breakdowns and keep your system running safely all winter.
For dependable heating service in Danville, IL, call 217-394-1380 today.
Cooling & Air Conditioning Services in Danville, IL
When summer heat strikes, trust Lanz for cooling repairs and AC installations that keep your home comfortable and energy-efficient.
Our certified HVAC team provides:
- Air Conditioning Repair & Maintenance – Quick response to restore cool air fast.
- AC Installation & Replacement – High-efficiency systems professionally installed for your home’s needs.
- Ductless Mini-Split Systems – Zoned comfort ideal for older homes or room additions.
- Smart Thermostat Setup – Maximize efficiency and control from anywhere.
We’re proud to be Danville’s go-to choice for reliable air conditioning service and repair.
Drain & Sewer Solutions in Danville, IL
Clogged drains and sewer backups can cause serious headaches. Lanz delivers fast, professional drain cleaning and sewer repair in Danville using advanced equipment for lasting results.
Our sewer services include:
- Sewer Camera Inspections – Identify cracks, roots, or buildup without excavation.
- Sewer Line Repair & Replacement – Trenchless methods minimize disruption to your yard.
Restore your drains and protect your home with Lanz’s expert sewer and drain services.
Underground Solutions in Danville, IL — Safe, Efficient, and Long-Lasting
From pipe replacements to water service upgrades, Lanz offers professional underground plumbing solutions built to last. Our team uses the latest technology to minimize digging, protect your property, and ensure reliable results.
We specialize in:
- Water Service Replacement & Repair – Fix leaks or corrosion in buried lines quickly and safely.
- Sewer Line Installation & Trenching – Durable, properly sloped systems that meet local Danville codes.
- Excavation & Site Prep Services – Safe and efficient digging for utilities, foundations, and drain fields.
- Directional Boring & Trenchless Pipe Repair – Non-invasive methods that preserve landscaping and pavement.
If your Danville home or business needs underground plumbing work, Lanz’s experienced technicians are equipped for any challenge.
Water Heater Installation & Service in Danville, IL
Don’t settle for inconsistent hot water. Lanz installs, repairs, and maintains both tank and tankless water heaters in Danville.
Our plumbing experts handle:
- Water Heater Replacement & Repair – Reliable hot water restoration with energy-efficient options.
- Tankless Water Heater Installation – Endless hot water and long-term savings.
- Water Filtration & Softener Systems – Improve water quality and protect your appliances from buildup.
Ask about our free estimates and maintenance plans to extend your system’s lifespan.
Indoor Air Quality Services in Danville, IL
Breathe easier with clean, healthy air. Lanz provides custom indoor air quality solutions to reduce allergens, control humidity, and eliminate odors in your Danville home.
We offer:
- Whole-Home Air Purifiers & Filters – Capture dust, pollen, and airborne bacteria.
- Dehumidifiers & Humidifiers – Balance moisture levels for year-round comfort.
- Duct Cleaning – Improve airflow and reduce energy waste.
Protect your family’s comfort and health with Lanz’s IAQ experts.
Commercial HVAC & Plumbing Services in Danville, IL
Local businesses trust Lanz for dependable commercial HVAC and plumbing support. Our skilled technicians deliver responsive service and tailored maintenance programs to keep your operations running smoothly.
Commercial services we offer:
- Preventive maintenance for large facilities
- Boiler and rooftop unit repairs
- Commercial drain cleaning and sewer repair
- Design-build installation for new construction projects
We proudly support Danville businesses with solutions that keep comfort systems efficient and reliable year-round.
Experience the Lanz Difference in Danville, IL
From homes on Vermilion Street to businesses downtown, Lanz Plumbing, Heating & Cooling is proud to serve the Danville community with honest service and dependable results. Whether it’s plumbing, HVAC, or underground solutions, our mission is simple — your comfort, your safety, and your satisfaction.
Call 217-394-1380 or contact us online to schedule service and experience The Lanz Difference in Danville, IL today.
Recent Jobs and Reviews in Danville, IL
Danville, IL at a glance
Lanz Plumbing, Heating & Cooling has completed 25 jobs in Danville, IL between August 2026 and September 2026.
The most recent job was on September 11, 2026.
Job Locations and Reviews
Provided toilet repair by replacing faulty fill valves, worn flappers, and water supply lines on three units. Tested for leaks and verified all toilets now fill, flush, and shut off properly.
Completed HVAC maintenance on three commercial furnaces. Replaced 14x24x1 and 16x24x1 filters, cleared condensation lines and traps, cleaned burner assemblies, and verified electrical components and temperature splits for optimal heating.
Conducted commercial furnace maintenance. Cleaned and inspected heating components for safe, efficient operation. Verified all parts are in good working condition and the system is heating properly for the season.
Performed furnace maintenance on four systems. Cleaned burner assemblies, cleared condensate lines, and replaced filters. Identified a cracked collector box on the basement unit and recommended replacement to prevent water damage.
Diagnosed a leaking shower head and replaced both worn cartridges on the two-handle shower valve. Tested the new installation to ensure leak-free operation and reliable bathroom plumbing.
Resolved E5 error code on crawlspace dehumidifier caused by poor airflow. Deep cleaned and dried the clogged filter, reset the system, and verified proper operation as humidity dropped from 71% to 63%.
Cleared root blockage in the main sewer line using a 3/4” cable and 3” cutter. Camera inspection confirmed flow but revealed cracks in the clay pipe. Provided estimates for sewer line repair, including spot repair and pipe lining options.
Diagnosed AC not cooling during HVAC repair. Replaced scorched control board, but blower motor remained unresponsive. Identified failed blower motor; scheduled return visit to install replacement motor with correct mounting brackets.
Tested bathroom plumbing fixtures and diagnosed a faulty shower cartridge causing hot water issues on the cold setting. Recommended a shower cartridge replacement to restore proper temperature control.
Replaced a failed diverter cartridge to resolve a commercial kitchen faucet leak. Tightened a loose nut on the lever drain to fix leaks under the sink, then tested the faucet and drainage to ensure proper, leak-free operation.
Replaced one faulty outdoor wall hydrant and repaired another to resolve leaks. Provided estimates for upcoming tub diverter replacements and a two-compartment wash sink installation.
Cleared a clogged kitchen floor drain blocked with grease and food debris using a 50 ft cable. Flushed the line with water to ensure proper flow and verified all other floor drains are draining correctly.
Completed HVAC maintenance and plumbing inspection. Replaced air filter, cleaned outdoor AC unit, and tested refrigerant. Tested water pressure and sump pump, and quoted repairs for a leaking exterior spigot and kitchen shut-off valves.
Inspected 23-year-old water heaters. Identified leaking, corroded waterline connections and a leaking top heating element. Recommended water heater replacement due to age and provided quotes for replacing one or both systems.
Pulled urinal and performed drain cleaning, rodding the line 30 feet with a 5/16 cable to clear heavy sludge and scale. Reset fixture, verified leak-free operation, and noted dangerously hot sink water requiring future plumbing repair.
Performed furnace maintenance to address combustion odor concerns. Verified flickering LED is a normal power-cycle indicator, not a system fault. Recommended replacing a weak blower capacitor (5.7/7.5 mfd) to ensure reliable heating.
Cleaned sediment from toilet fill valve filters to restore water flow. Due to tight clearance, replacing the valve requires pulling the toilet. Provided a quote for a complete toilet repair and fill valve replacement.
Diagnosed water heater pilot light issue. Inspected electrical components, verified spark igniter function, and successfully relit the unit. Cycled the thermostat to confirm proper operation and elevated the water heater off the ground.
Cabled main sewer line 40 feet to address sewer backup. Retrieved mud and clay, indicating a broken pipe. Located the sewer line break 4.5 feet deep in the yard and referred for an underground sewer line repair quote.
Cleaned AC condenser coils, tested capacitor, and checked refrigerant. Drained the water heater and replaced the drain valve with a durable full-port valve. Located an unresolved pipe leak in crawlspace requiring follow-up plumbing repair.
Diagnosed an AC leak by adding refrigerant and UV dye. Located dye on the filter, indicating a leaking evaporator coil. Provided a quote for air conditioner repair to replace the indoor coil and filter drier, then pressure test and recharge.
Investigated overflowing stormwater detention pond. Cleared overgrowth to locate the outlet and confirmed it was actively draining into the city pond. Monitored receding water levels; scheduled follow-up drain cleaning for the inlet and outlet.
Disconnected and moved heat pump to install and level a new equipment pad with gravel. Reinstalled unit, brazed line sets, pressure tested at 250 psi, pulled vacuum to 180 microns, and verified proper heating and cooling service.
Removed stuck lobby sink stopper and replaced the outdated lever-style mechanism with a new push-down pop-up assembly. Tested for leaks and verified smooth drainage to ensure a quality plumbing repair.
Cleared AC condensate lines and washed the outdoor unit. Completed plumbing repair by flushing the water heater, installing a new full port valve, and replacing the tub diverter and kitchen strainer basket.
