Masters Heating & Cooling has provided HVAC and plumbing services to Indianapolis home and business owners since 1980 and is ready to take on your project. Whether your heater or air conditioner is making weird sounds or your office’s air quality could be better, we’ve got you covered!
If you’re looking for a team of professional HVAC and plumbing technicians available day or night, call Masters Heating & Cooling to schedule service.

Heating
If you’re a homeowner in Indianapolis, you’ve got Masters Heating & Cooling ready 24/7 for emergency heating services. A broken boiler or furnace is a serious issue, especially in Indy’s frigid winters. It can lead to frozen and burst pipes, structural damage to your home, and significant discomfort or even displacement if your indoor temperature drops too low.
We proudly offer these heating services:
- Heater installation and replacement: We’re a Carrier Customer Specialist team, meaning we install top-of-the-line Carrier heating systems in residential and commercial properties.
- Heater repair: We specialize in fixing and upgrading gas and electric furnaces, boilers, heat pumps, and geothermal systems. We offer emergency and same-day repair.
- Heater maintenance: Our Energy Savings Agreement includes annual tune-ups, priority service, and discounts.
- Commercial heating services: We’ve got Indianapolis businesses covered. We offer efficient heating solutions, including installation, repair, and maintenance, so you can get back to business.
Cooling
Is your air conditioner working too hard, costing more money than ever, but still not keeping your home cool enough? It may need repairs or a more energy-efficient replacement. Masters Heating & Cooling installs and services traditional duct AC systems and ductless mini-splits to our friends and neighbors in Indianapolis.
Our air conditioner services include:
- Air conditioner installation and replacement: We ensure you have the best AC for your home’s needs, focusing on installing energy-efficient solutions with a 100% satisfaction guarantee.
- Air conditioner repair: Our HVAC technicians handle electrical, fan, airflow, duct, filter, drainage, refrigerant, and compressor issues in all cooling systems.
- Air conditioner maintenance: We provide filter replacement, debris cleaning, and vegetation management to ensure the longevity of your AC units.
- Commercial cooling services: Our commercial customers can expect 24/7 emergency repairs, customized maintenance plans, and the installation of high-quality Carrier systems, all to make sure your business is comfortable to those in it.
Air Quality
Your home is your safe haven, so why not improve the air quality inside your home? Air purifiers can eliminate dust and other particles in the air, while UV purifiers kill bacteria and viruses.
Systems we service include:
- Air cleaners: We offer a range of air filtration products, including the highly efficient Honeywell line, with various sizes and MERV ratings to improve indoor air quality by filtering out airborne contaminants like dust, pollen, and bacteria.
- Humidifiers: We install whole-home humidifiers to provide consistent and efficient humidification throughout your home. This helps maintain ideal humidity levels, improves indoor air quality, protects your home furnishings, and reduces heating costs.
- Dehumidifiers: Does your home feel damp or musty? You may need a whole-home dehumidifier. They control indoor humidity, prevent mold growth, and inhibit wood damage.
- UV light purifiers: We proudly install Carrier’s Infinity® and RMAP purifiers, which feature Capture & Kills® technology to significantly reduce airborne pathogens and allergens.
Expert Plumbing
Masters Heating & Cooling offers dependable, high-quality plumbing services, handling your plumbing issues, installations, and maintenance. Our water heater installers are certified technicians who install quality brands like American Standard and Moen.
Our plumbing services include:
- Traditional water heater services: We install and replace traditional storage tank water heaters, both gas and electric, and provide repair and maintenance services.
- Tankless water heater services: Upgrade to an energy-efficient tankless water heater to experience hot water on demand and lower energy costs.
- Plumbing fixture installation and repair: We’re contractors’ favorite installer! We install plumbing fixtures in new construction and upgrade fixtures in pre-existing homes.
- Commercial plumbing: Whether it’s an office, healthcare facility, restaurant, or other business, we fix all commercial plumbing issues in Indianapolis.
Why Choose Masters Heating & Cooling in Indianapolis, IN?
If you’re looking for HVAC or plumbing technicians in Indianapolis, Masters Heating & Cooling is here to take care of your home or business 24/7 with emergency repair and installation services. Our technicians are licensed, insured, and NATE-certified. Every service comes with a 100% satisfaction guarantee.
We offer free estimates on replacement quotes, upfront pricing, and flexible financing options. We’re the ones to call when you’re experiencing an issue with your HVAC or plumbing.
Whether you need HVAC, air quality, or plumbing services, the pros at Masters Heating & Cooling are available 24/7 for your home or business. Contact us anytime to schedule any service online.
Recent Jobs and Reviews in Indianapolis, IN
Job Locations and Reviews
Completed scheduled cooling maintenance on residential HVAC system. Performed comprehensive system diagnostics including temperature differential measurements across evaporator coil registering 950.5°F and electrical testing of control circuits showing 15.9 microamps draw with 0.0V at tested connection points. Inspected all wiring connections, control board operation, and refrigerant lines; verified proper insulation integrity and confirmed system operating within normal parameters with no deficiencies noted.
Responded to no cooling call with reported breaker tripping and dead thermostat on 10+ year old unit. Upon arrival, confirmed power issues and performed diagnostic inspection of HVAC system. Opened air handler compartment and found blower assembly with significant dirt and dust accumulation, indicating lack of regular maintenance. Inspected electrical components including capacitor, wiring connections, and associated hardware within the unit. Proceeded to main electrical panel and tested amperage draw, recording 23.36 amps on the affected circuit using clamp meter to verify electrical load and identify potential overcurrent condition causing breaker trips. Documented system condition with photos showing contaminated blower wheel and electrical measurements. Advised customer of diagnostic findings and discussed repair options for aging equipment experiencing electrical and operational failures.
Completed preventative maintenance on two commercial ice machines per scheduled service agreement. Performed standard PM procedures including inspection of all components, cleaning of condenser coils, verification of proper operation, and documentation with site system layout reference. All units operating within normal parameters upon completion.
Conducted comprehensive assessment of existing HVAC system for complete heat pump and air handler replacement estimate. Evaluated current equipment configuration in residential utility closet, documenting existing air handler unit and ductwork installation. Inspected attic space to assess ductwork conditions, insulation coverage, and accessibility for replacement installation. Provided estimate for complete system replacement including heat pump, air handler, and Halo air purification system, with additional recommendation for mold remediation services to be performed by qualified subcontractor prior to equipment installation.
Replaced defective defrost control board on rooftop HVAC unit. Disconnected all wire terminals from failed board, installed new defrost control board, reconnected all wiring including power leads and defrost sensor, and verified proper system operation upon completion.
Responded to no heat call on aging HVAC system. Upon arrival, performed complete system diagnostic including visual inspection of furnace unit, gas supply line, and associated components. Verified gas supply valve operation at exterior meter, confirmed proper positioning and functionality of shut-off valve, and inspected gas piping for leaks or damage. Conducted thorough assessment of furnace including ignition system, burner assembly, heat exchanger, blower motor, and safety controls. Documented equipment condition with photos showing exterior gas line assembly with age-related weathering and interior furnace installation with connected water heater. System restored to proper operation and tenant advised of findings.
Completed 2026 cooling season first service maintenance on residential HVAC system. Performed comprehensive inspection of outdoor condensing unit, measuring capacitor values using Fluke 902FC clamp meter with readings of 39μF and 43μF recorded to verify proper compressor and fan motor operation. Unit operational with normal parameters observed.
Completed annual cooling maintenance including comprehensive dehumidifier service and replaced Aprilaire #310 filter. Performed diagnostic testing of dehumidifier components, verified electrical specifications (0.7A 17W), and conducted moisture level measurements to ensure proper system operation. All equipment inspected, serviced per manufacturer specifications, and confirmed operating within normal parameters for optimal indoor air quality and cooling system performance.
Completed scheduled cooling maintenance as part of annual commercial HVAC agreement (service 1 of 4). Replaced Aprilaire #410 cylindrical air filter with new pleated media element, inspecting filter housing for proper seal and fit. Performed comprehensive inspection of outdoor condenser unit, verifying fan operation, checking refrigerant line insulation integrity, and confirming adequate clearances around equipment on concrete pad.
Completed furnace tune-up per customer request regarding heating system not maintaining desired temperature of 78 degrees. Performed comprehensive system inspection including blower motor assembly, electrical connections, and air filtration components. Inspected non-operational Halo air purification system and documented motor wiring connections for diagnostic purposes. Installed #110 filter and provided customer with repair recommendations for air purification unit restoration.
Completed comprehensive cooling system maintenance inspection on residential HVAC unit. Performed standard preventative maintenance procedures including inspection of air distribution system with verification of supply grille condition and airflow patterns. Utilized digital testing equipment to measure and document system performance parameters at the outdoor condensing unit, ensuring all operational specifications met manufacturer requirements. System operating within normal parameters with no deficiencies noted at time of service.
Responded to complaint of inadequate airflow to back room. Inspected floor register and traced flexible ductwork through attic space. Found disconnected and unsealed duct joints causing significant air loss before reaching the affected room. Reattached and sealed all ductwork connections with mastic and foil tape to restore proper airflow. Verified system operation and confirmed improved air delivery to back room upon completion.
Completed comprehensive AC tune-up on Trane XV20 condenser unit and associated furnace system. Performed standard maintenance procedures including inspection of all major components, verification of refrigerant levels, cleaning of condenser coils, testing of electrical connections, and system performance evaluation to ensure optimal operation for the cooling season.
Completed scheduled 2026 cooling maintenance agreement service on commercial HVAC system. Performed comprehensive system inspection including control board evaluation, electrical connections verification, and safety control testing. Installed two 16x25x2 pleated air filters as included in maintenance agreement, replacing existing filters showing normal dust accumulation. Documented control panel wiring configuration and circuit board connections, confirming all terminal blocks, relays, and wire harnesses secure and properly connected. All system components operating within normal parameters with no deficiencies noted at time of service.
Completed scheduled cooling maintenance on outdoor condensing unit. Performed electrical diagnostics using digital multimeter, recording compressor amperage draw of 4.254 amps and system voltage reading of 433 volts. Inspected capacitor, wiring connections, and condenser coil condition, confirming all components operating within normal parameters.
Completed comprehensive cooling maintenance on Trane HVAC system including inspection of furnace unit, air handler, and outdoor condensing unit. Performed electrical diagnostics using digital clamp meter, verified amperage readings at 64.1 amps, and inspected refrigerant line insulation for proper coverage. Checked condensate pump operation and drainage system functionality, ensuring all components operating within manufacturer specifications for optimal cooling season performance.
Returned to diagnose Lennox heat pump system per customer request for follow-up evaluation. Upon inspection, identified failed control board with no power present. Verified thermostat was calling for cooling with system set to 58 degrees while inside temperature read 65 degrees, confirming communication attempt from thermostat. Tested electrical supply to control board and confirmed complete board failure with no LED indicators illuminated and no relay operation. Documented failed control board condition with photographic evidence showing TE and Omron relays, capacitors, and other board components. Presented repair options to customer for control board replacement to restore heat pump operation.
Completed cooling maintenance on multi-unit HVAC system including two units under existing maintenance agreement and one additional Trane XR unit requiring cleaning and diagnostic evaluation. Performed standard preventive maintenance procedures on covered units, inspected outdoor condenser components, and assessed control board wiring connections. The third unit was identified as requiring cleaning services and further diagnostic assessment to determine necessary repairs, with recommendation to add unit to existing preventive service agreement for ongoing coverage and repair discount eligibility.
Completed routine cooling maintenance on residential HVAC system and discovered significant frost buildup on evaporator coil and ductwork, indicating restricted airflow or low refrigerant charge. Measured system temperatures using digital clamp meter, inspected evaporator coil condition, and documented heavy ice formation on metal panels with visible condensation streaking. Recommended immediate follow-up to address airflow restriction or refrigerant issue to prevent compressor damage and restore proper cooling operation.
Responded to service call for H-100 HVAC unit reported as non-operational with fan failure and no airflow. Upon arrival at commercial warehouse facility, conducted systematic diagnostic evaluation of the HVAC system including visual inspection of unit components, electrical connections, and control systems. Verified thermostat functionality and tested temperature adjustment controls to isolate the source of the malfunction. Performed comprehensive troubleshooting of blower motor, capacitor, relay switches, and associated wiring to determine root cause of fan failure and lack of air distribution.