Homeowners have trusted Control Tech with their heating, cooling, and plumbing service since 1983. We know that home comfort isn’t one-size-fits-all, and we’ll find the perfect solutions for all your home comfort needs. With reputable techs and an eye for detailed work, you can feel confident that you’ll always get the best from our team.
From heating and cooling to home plumbing systems, we’re ready to do it all. Our techs stay up to date on modern tools and techniques, and they’ll deliver the solutions you need, no matter the job.
When winter rolls into Indiana, you need to be confident that your home is prepared to keep you warm. The Control Tech team is trained to service your heating equipment, so you’re never feeling left out in the cold. If you have an old or worn-down system, we can replace your unit with premium equipment, so you’ll be ready for whatever the season holds.
For cool and calm in the warmer seasons, you need a reliable air conditioning system. We can install, repair, and help maintain your units to keep your home comfort consistent, no matter what the temperature outside. We only use products from industry-leading manufacturers, so you can upgrade your system with the highest quality.
Don’t let leaks or clogs ruin your day—we’re programmed to help your plumbing! Whether you need drain cleaning, pipe repair, fixture installation, or other plumbing assistance, our team can get things flowing for you again smoothly and efficiently.
There’s nothing like a surprise cold shower to ruin your morning. If you need a new water heater, we’ll determine the best unit for your space and complete a full installation. If your unit isn’t ready to be replaced, we can provide the repairs you need to get warm water back fast.
Over time, allergens, dirt, and debris can collect in your air ducts, which can negatively affect your overall indoor air quality. Protect the health of your home and family with regular air duct cleaning—you’ll be breathing easy again when we’re done!
Since 1983, Control Tech has been a highly trusted name in home service. We keep your heating, cooling, and plumbing systems running reliably, so you can have peace of mind through every season. Our trained, expert technicians supply modern solutions and careful workmanship to provide the answers you need, when you need them.
We began as a humble company dedicated to educating customers and being a dependable resource for service. As we have grown over the years, our services and team have expanded, but our values and priorities have not changed. We are proud to provide premium work throughout our community, and to be known as the welcoming, approachable team you can trust.
We pride ourselves on providing warm, friendly service that Indiana homeowners can depend on. On top of an exceptional customer experience, you’ll always get expert recommendations and quality work from our team members. We’re committed to your satisfaction, through and through.
As a family-owned and operated company, offering service based in integrity is important to us. You can feel sure that you’re getting reliable work from our team and that we always have your best interests at heart. There’s nothing robotic about working with us!
We gladly take time to educate our customers during our service visits. We’ll be transparent about our recommendations and the work we’re doing, so you know exactly where you stand and what your home needs. Our team members are happy to answer questions and follow up with you, so you’re confident in the job we’ve done.
Founded in 1983, we have been perfecting our processes for a long time. We know how to provide the reliable work and responsive service you deserve from your first phone call through our final handshake. We’re grateful to have been serving our community for decades, and we’re proud to have formed long-lasting relationships with our customers over the years.
Getting you comfortable again is our priority, and we use cutting-edge technology to get things working quickly. We’ll determine the best equipment and service for your individual situation, and our skilled team will take care of the job with precision. We only install premium systems, and we keep our quality standards high, with your complete comfort in mind.
Control Tech Heating, Air, & Plumbing has completed 25 jobs in October 2026.
The 15 customer reviews shown here average 4.9 out of 5.
The most recent job was on October 7, 2026.
Recent work covers Zionsville, IN, Indianapolis, IN, Brownsburg, IN, Carmel, IN and Whitestown, IN.
Performed dual fuel, condensing gas furnace and heat pump, inspection/maintenance. System works properly at this time. Needs to come back with extractor tool to fix the gas valve port. 10/7/26- Replaced the gas test plug on the manifold side. Verified operation of the system.
Performed Lennox condensing gas furnace inspection/maintenance. Replaced the air filter, customer supplied. System works properly at this time.
Performed condensing gas furnace inspection/maintenance. Replaced the air filter, customer supplied. System works properly at this time.
Upon arrival, I was greeted by Dave. He showed me to the equipment in the garage. I changed the air filter with a customer supplied one. I noticed that the wet switch at the furnace was disconnected. I checked previous invoices and found it was disconnected in August of 2023 because of tripping from condensation on the ductwork. I spoke about it with Dave and he said to leave it unhooked. I performed the maintenance on the furnace and the humidifier. Replaced the humidifier water panel. Checked operation. It was ok. Flushed the condensate trap on the furnace and the drain lines. Pulled and cleaned the burners and flame sensor. Checked all wire connections, amp readings, gas pressure and temperatures. All functions are normal at this time. Customer paid with a credit card for today’s service.
Upon arrival, I was greeted by Janice. She showed me to the equipment and thermostats. She mentioned that they have misplaced one of the remote sensors for the upstairs thermostat. I was going to quote replacing it but she wanted to order it on line. I gave her the sensor part number from the thermostat instructions. Checked the electric heat banks. They were ok. (20.1, 20.3 and 20.2 amps). Turned the system to heat and checked the geothermal. Unit is heating normally. Pressures and temperatures were within specifications the temperature rise was good. The zone dampers are working normally. All functions are normal at this time. I noticed what looks like a piece of plastic bag/material was in the sump pit. I tried to pull it out but it may have been pulled into the pump. I brought it to her attention and recommended our plumbing department check it out. She declined at this time.
Performed propane gas furnace and mini split inspection/maintenance. Systems work properly at this time.
Upon arrival, I was greeted by Captain Greg. He showed me to the #3 unit upstairs that needs the drain line replaced and the outdoor units on the ground outside. I started upstairs and removed and replaced the drain line for unit #3. Checked it for leaks. Ok. I then cleaned the 4 condenser coils on the ground floor outside using the water spigot in the courtyard area in back and a hose. I checked the coils on the rooftop deck area. They were ok.
Performed # 2 Trane gas condensing furnaces inspection/maintenance. Serviced the steam humidifier, replaced the canister and electrodes. Serviced the ERV, cleaned the filters and tested. All systems work properly at this time. Customer paid to renew the service agreement.
(Jason’s summary) Arrived at my appointment and was greeted at the door by Mr. Collins. I was shown inside and escorted to the main lab building units, where I began the cooling tune-ups. First, I inspected each unit’s evaporator coil. I observed no signs of oil, and the coils were clean. These systems utilize TXV metering devices. Next, I inspected each unit’s blower wheel. The blower wheels were secure but dirty, and I recommend blower wheel cleanings. The unit filters are due for replacement. The customer will supply and replace the filters. I then inspected each unit’s electrical components to ensure they were operating within the manufacturer’s specifications. All electrical readings were within range. I proceeded to the outdoor units, where I was unable to clean the condenser coils because there were no hose spigots available in or around the area. I then inspected the outdoor electrical components, and all readings were within range. I inspected the unit disconnects, and
Serviced mini split, cleaned indoor filter, outdoor coil. Checked humidifier pad. Ran new thermostat wire so that the dehumidifier is controlled through the thermostat. All ok.
I was greeted by Mike on arrival. I completed the heating maintenance on both systems. I replaced the customer-provided filter on both systems, I replaced the customer-provided humidifier panel. I verified operation of the humidifier. I checked all temperatures and pressures on both systems. I flushed the drain on the main unit. Both systems are heating normal at this time.
Performed Heil condensing gas furnace inspection/maintenance. Replaced the air filter, customer supplied. Replaced the blower motor capacitor. Tested the humidifier, replaced the water panel. The furnace has multiple signs of age.
Upon arrival, I was shown to the boiler. The customer turned the thermostat up. The boiler came on. I shut off the power. I pulled and cleaned the burners and the heat exchanger. Cleaned the pilot assembly, flame sensor and spark igniter. Reassembled the parts and restarted the unit. I checked gas pressure, water pressure and temperatures. Checked the cycling of the aquastat. Checked the amps on the water pump. All functions are normal at this time.
Performed Lennox condensing gas furnace and Lennox mini split inspection/maintenance. Removed and cleaned the burners and the flame sensor. Tested the igniter gas pressure and the combustion. Flushed the trap. Replaced the air filter, customer supplied. Tested the humidifier functionality, the water panel is good. Washed the mini split air filter and tested the unit. Systems work properly at this time.
Heating Inspection and Maintenance Upon arrival, Tom showed me the thermostat and furnace locations of the two unit. One was garage heater with lp gas and another is 2stage gas valve furnace. The flame sensor or garage heater was cleaned , and also checked the outlet place gas pressure is 10 inch w. C.. amp drops of inducer motor and blower were checked. All the test results for garage heater were normal. For house gas furnace, the condensate drain, igniter, burners, flame sensor, heat exchanger, inducer, combustion chamber, blower wheel, and electrical components were inspected and serviced as needed. Gas pressure were 1.7 and 3.5 in. w.c. For first and second stage respectively. temperature rise was 40 F. Combustion readings were within normal range. The system was tested and is operating normally with no further recommendations.
Performed #2 Lennox gas condensing furnaces inspection/maintenance. Cleaned flame sensors, burners flushed the traps tested the combustion with the analyzer. Customer has just replaced the air filters. Systems work properly at this time.
Performed Lennox condensing gas furnace inspection/maintenance. Customer will replace the air filter. Cleaned flame sensor, burners, flushed the condensate trap. Tested the combustion. System works properly at this time.
I was greeted by Olivia on arrival. She stated the same unit that we have been out on multiple times wasn’t working. I put in a call for cooling and the outdoor unit wouldn’t come on. I added my gauges and found it completely empty of refrigerant. I added some nitrogen and found a line had rubbed through on the condenser coil. The unit is under part warranty. I sent a warranty estimate to John. The disconnect is out at this time. John was not on site. I discussed the findings with Olivia.
Performed Lennox condensing gas furnace inspection/maintenance. Customer takes care of the air filter replacement and the humidifier service. System works properly at this time.
Installed back plate on Daikin thermostat. Cycled system back on.
Upon arrival, customer was experiencing a water leak on the new mini split we installed. I found that a pump was never installed. I installed a pump cycled system back on. No leaks at this time
Heating Inspection and Maintenance Upon arrival, Jeff showed me the thermostat and furnace locations. The dirty air filter was clean. The condensate drain, igniter, burners, flame sensor, heat exchanger, inducer, combustion chamber, blower wheel, and electrical components were inspected and serviced as needed. Modulated gas furnace. The pressure was not tested due to tee connectors were not available. temperature rise was 41F. Combustion readings were within normal range. The system was tested and is operating normally with no further recommendations
Very informative and explains all aspects of the service and reviews all information when completed.
Performed Trane condensing gas furnace inspection/maintenance. Cleaned flame sensor and burners. Removed and cleaned the condensate trap. Tested the unit at the 100% of capacity. Performed combustion analysis. Serviced the humidifier, replaced the water panel. System works properly at this time. Customer paid with check # 3998.
Heating Inspection and Maintenance Upon arrival, Scott showed me the thermostat and furnace locations. The dirty air filter was replaced with approval. The condensate drain, igniter, burners, flame sensor, heat exchanger, inducer, combustion chamber, blower wheel, and electrical components were inspected and serviced as needed. Gas pressure was1.7 and 3.5 in. w.c. For 1stage and 2nd respectively.and temperature rise was 49F. Combustion readings were within normal range. The system was tested and is operating normally with no further recommendations.
Performed air handler/heat pump inspection/maintenance. System works properly at this time.
Needed adjustments to recent furnace installation
Found an issue. Described it completely. Arranged to get replacement part to be installed before furnace will be needed. Grateful to have repair before winter sets in
Paolo knows our HVAC system and keeps it running perfectly! Friendly and easy to talk to.
He was great!!
Excellent Service
Paolo is a very thorough technician and knows how to service my boiler and troubleshoot problems. He explains what he is doing as he goes along. Please be sure he is assigned to me for my next service call as he is one of the few people who know how to service this boiler.
Misunderstanding about some pricing but worked out satisfactorily. Joining maintenance program
John provided excellent service. He was very personable and knowledgeable. My only complaint is that I had to wait a week for service to repair my air conditioning. While the Control Tech website indicated emergency service is available, none was offered as an option. I share this as a detail to look into on the website to improve messaging.
Received great service from Paolo.He checked my air conditioning system and found no problem with it. He did keep checking to determine cause for increased humidity in house. He gave several suggestions and we will try them out.
This whole ordeal was totally off the wall amazing. From the lady who took the call to the awesome technician John Fountain. I had air within 1 hour or so. I know Alan would be thrilled with the people who work for him.
J0HN WAS VERY PROFESSIONAL, ARRIVED ON TIME, AND KNEW WHAT HE WAS THERE TO DO AND HOW TO DO IT.
I hope he comes every time. Most compotent I have seen.
Collin was professional and very knowledgeable about my HVAC system. He quickly determined what the problem was and explained what part had failed. He informed me of my warranty and senior discounts as he prepared the repair quote. I highly recommend ControlTech for your HVAC needs.
It's hard to find companies that still pay attention to customer service, I believe Control Tech is one of the few. Also I can't give 5 star only because nobody is perfect and there should always be room for improvement. Otherwise I would have, I worked for one of the best customer service companies when I was younger, nobody got 5 stars for an internal performance review.
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Our Total Control Membership Plans give you access to more from your trusted Control Tech team. With plans available for both your HVAC and plumbing systems, members receive regular maintenance visits, priority service, exclusive discounts, and more, making membership a great way to protect your home’s systems and keep things running smoothly all year long. If you’re ready to upgrade your maintenance, sign up for a membership today!
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Our Mission Control
If you’ve had your system for more than 10 years, and you’re spending a lot of time and money on repairs, it may be time to invest in a replacement. As components wear down over time, it can be more cost-effective to move to more modern equipment for the most efficient temperature control.
Absolutely. When your water heater begins showing signs of disrepair, like leaks, inconsistent temperatures, or unusual sounds, give us a call and we’ll determine if your unit needs a repair or it’s time for a replacement.
Yes! We know that system breakdowns don’t stick to a schedule. Our answering center is available 24/7, so you can contact us any time you’re having an urgent problem outside of business hours.
We do! Members of our Total Control Membership Plan have access to regular maintenance visits, as well as exclusive benefits and discounts. Becoming a member is a great way to extend the longevity of your home’s systems and get peace of mind year-round.
Yes, we do! We don’t want affordability to stand in the way of the solutions you need. Reach out to review available options, so you can keep your home comfortable without unneeded financial stress.
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