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 15, 2026.
Recent work covers Indianapolis, IN, Zionsville, IN, Carmel, IN, Brownsburg, IN and Lebanon, IN.
Upon arrival, I was greeted by Joe. He said that they noticed the upstairs thermostat was blank and there was a red light on in the furnace closet. He showed me to the equipment. I found the wet switch was activated under the air handler. I dried out the switch. I quoted on blowing out the drain line. Customer approved. I blew out the drain line and flushed with water and added some treatment tablets to the drain pan. DRAIN LINE SHOULD BE REPLACED but it runs under the second floor, over to the outside wall and down into the basement by the sump pit. Recommend having our plumbing department check to see what would be the best solution for replacing the drain line. I turned the system on and checked refrigerant levels. The system is low on refrigerant. This can cause the indoor coil to ice up and cause leaking. I spoke with Joe about his options and about the age of the system. If the system is low on refrigerant, that means there’s a leak somewhere and the cost to repair a 13 year o
Propane condensing Lennox gas furnace tune-up. Performed the flue analysis. Customer takes care of the air filter replacement. System works properly at this time.
The customer was not home on arrival. I went around to the outdoor unit and leveled the air conditioner. Pictures are attached. All is normal at this time.
Paolo did a great job. He was fast, efficient and courteous. He explained all the results with me thoroughly.
Upon arrival, I shut off the main a/c system. I recovered 7 pounds 10 ounces from the system. I removed some of the ductwork and the intake and exhaust on the furnace to access the indoor coil. I removed the old indoor coil and installed the new one. I reconnected the drain line and the ductwork and intake and exhaust. I pressurized the system to 200 psi and checked the fittings for leaks and that it held pressure for 15 minutes. Ok.I then performed a vacuum test and pulled the system below 500 microns and checked that it held vacuum for 15 minutes during the decay test. Ok. I recharged the system with 7 pounds of R410A. I started the system and checked operation and adjusted the refrigerant charge to achieve 5-6 degrees subcooling per manufacturer’s specifications. Unit is cooling normally at this time.
Performed geothermal winter inspection/maintenance. Replaced the air filter replacement, customer supplied. Boosted the loop at 40 psi. Tested the auxiliary heat. System works properly at this time.
I called Joey on arrival. I got on the roof and got the filter sizes and quantity. I also found the condensate trap is broken. I sent an estimate to replace the filters and condensate trap to Joey’s email along with Photos. If approved we will need a 3/4” pvc p trap. Noone present to sign invoice.
Trane non condensing gas furnace tune-up. Performed combustion analysis. Customer takes care of the air filter replacement. Tested the humidifier functionality, customer has just replaced the water panel. System works properly at this time.
Carrier condensing gas furnace tune-up. Customer takes care of the air filter replacement. Performed the flue analysis. System works properly at this time.
Upon arrival, I was greeted by Richard. He showed me to the equipment and thermostat. I started at the air handler in the closet. Air filter was just replaced. I checked the operation of the electric heat banks. Both are working normally. Checked the blower wheel. It had some minor dust build up but ok at this time. Indoor coil was good. I turned the system to heat and checked the outdoor unit. Checked all of the electrical components and amp readings. They were ok. I checked the refrigerant pressures and temperatures. They were within specs. Checked defrost operation. It was ok. I noticed that the indoor unit does not have any water detection device that can shut the system off if it detects a water leak from the a/c to help stop water damage. I quoted a price to install one. All functions are normal at this time.
Performed Lennox condensing gas furnace tune-up. The air filter is still good. Performed flue analysis. System works properly at this time.
Performed condensing gas furnace inspection/maintenance. Customer will replace the air filter. The igniter is starting to become discolored, quoted to replace. System works properly at this time.
Explained everything he had done and told us about our settings Filter everything he said we are good to go.
Performed Heat pump/air handler inspection/maintenance. Tested the humidifier functionality, the water panel is good. Installed the compressor hard start kit. System works properly at this time.
Collin was extremely good at explaining things.
Replaced Compressor. Performed pressure test and pressure held. Pulled vacuum below 450 microns. Vacuum held during decay test. Added 5lbs and 5 oz of virgin 410A back to the system.
Performed Lennox non condensing gas furnace inspection/maintenance. Air filter is still good. System works properly at this time.
On arrival the unit was empty of all refrigerant. We removed the old condenser coil and installed a new warranty coil. Nitrogen tested at 200 psi, vacuumed down to 489 microns and performed decay test. Added the 5 lbs of factory charge. Started system up and added another 2 lbs to get the sub cooling to 8.8*. The manufacturer calls for 10* +-3. All is normal at this time.
Performed condensing Trane gas furnace. Tested the humidifier functionality, water panel is still good Tested the furnace at the 100% of capacity. System works properly at this time.
Performed non condensing gas furnace inspection/maintenance. Serviced the humidifier, replaced the water panel. The air filter is still good. System works properly at this time.
Upon arrival, I was greeted by Elizabeth. She showed me to the equipment. She mentioned that the system would turn on for about 30 seconds and then turn back off and the thermostat read an error E183 on the Y1 wire. This usually indicates a short somewhere. I traced the problem to a shorted contactor on the outdoor unit. The internal short in the contactor was causing the voltage to drop and the thermostat to shut off and recycle. I quoted a price to replace it to George and he approved. I replaced the contactor and checked operation. The outdoor unit started cooling. I checked the refrigerant charge. It was within specs. Unit is cooling again at this time. The air filter needed replaced. I quoted and Elizabeth approved it. She paid $62.85 for the air filter in cash. We tried to contact George for payment on the contactor and diagnostic but he didn’t answer so she gave me a debit card to pay the balance in full. The part has a 1 year part and labor warranty. I quoted on a mainte
The basement boiler zone was valved off on arrival. I turned the valves on and bled the system. The boiler is running normally at this time.
Upon arrival, I was greeted by customer and show location of thermostats and systems. All three systems filters were checked and needed to be replaced. Customer had only one system filters, but he will have the other filters on hand to replace once we come back and return to replace a blower wheel belt. Blower wheels were checked and they are clean.Flame sensors were all checked and inspected and we’re cleaned. HSI on all three units were inspected and have good readings. Inducer were all checked and only one system had a capacitor for it and it had good readings. I checked gas pressures on all three units and they are within manufacture specifications when running systems and heating. All three units are running normal with no issues at this time. Customer accepted to get blower belt replaced and we will need to schedule this
Performed Lennox condensing gas furnace inspection/maintenance Customer will replace the air filter. System works properly at this time.
I educated customer how to operate the thermostat. System is cooling at this time.
Upon arrival, I was greeted by Christina. She showed me to the boiler in the basement and to the two thermostats. I determined that the thermostat in the basement controls the electric baseboard heat for the basement only. The thermostat near the kitchen controls the boiler. I turned the thermostat up. The exhaust damper opened and the water pump turned on but the burners never lit. I found the pilot was out. I tried to relight it but the flame is weak and won’t stay lit and the pilot assembly/thermocouple and burners need cleaned. I quoted on pulling and cleaning the burners and pilot assembly to see if the unit will light. Customer approved. I pulled and cleaned them and then reassembled. I lit the pilot. Flame was good but it still wouldn’t stay lit. I checked the millivolt read on the thermocouple. It was within specs. I tried putting on a new thermocouple but it still won’t stay lit. The gas valve has failed. The pilot valve coil has failed. Need to replace the gas valve. I re
Performed condensing Lennox gas furnace inspection/maintenance. Customer takes care of the humidifier service. System works properly at this time.
Walked through the thermostat with the homeowner. All ok at this time.
Excellent
Very informative and explains all aspects of the service and reviews all information when completed.
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.
Explore all the ways we help you take control of your comfort:
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!
Don’t let budgetary worries put your project on standby. We’re here to discuss potential financing options with you, so you can get the service you need from our expert team without the added stress.
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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