Electric, Plumbing, and HVAC Services in Floyds Knobs, IN
24/7 Emergency Service

HVAC emergencies happen when you least expect them. Contact the professionals at A+ Derr to take care of your issue. We have the necessary skills and tools to fix your system so you can safely use it once again. Call our team at 833-232-4328 to get emergency HVAC services in Louisville, KY, Evansville, IN, or the surrounding areas.

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Floyds Knobs’ Trusted Home Comfort Experts

outdoor central AC unit

When it comes to your home, comfort isn’t a luxury—it’s a necessity. And here in Floyds Knobs, where the seasons bring everything from frosty winters to muggy summer afternoons, A+ Derr Heating, Cooling, Plumbing & Electrical is the name your neighbors trust to keep things running smoothly. With decades of experience, a reputation built on honesty, and a commitment to doing things right the first time, we treat every home as if it were our own.

Whether you’re dealing with a furnace that won’t fire up, a leaky pipe, or a flickering light switch, we’re just around the corner and ready to help. Our team of licensed professionals shows up on time, works cleanly, and always puts your needs first. That’s the A+ Derr difference. Call 833-232-4328 today or contact us online for more information. 

Proud to Serve the Heart of Floyds Knobs

Floyds Knobs isn’t just another service area on a map—it’s a community we’re proud to be part of. From the scenic drive along Paoli Pike to Saturday games at Green Valley Elementary, we know what makes this town special. Our team lives, shops, and serves right here in Southern Indiana, and we take pride in supporting our neighbors with quality work that lasts.

Homeowners in Floyds Knobs rely on us for more than just technical expertise. We bring peace of mind with every visit. Because when your home systems are in good hands, you can spend more time enjoying the view from your backyard and less time worrying about what’s behind the walls.

Reliable Heating Services in FLoyd Knobs When You Need It Most

Indiana winters don’t play around, and neither do we. When your heating system falters, A+ Derr is on call to bring back the warmth.

We handle everything from modern heat pumps to classic boilers, ensuring your home stays cozy no matter how cold it gets. Our line of Floyds Knobs heating services include:

Cooler Summers Start With Expert AC Care in Floyds Knobs

When the humidity hits and your AC can’t keep up, don’t sweat it—call A+ Derr. We specialize in cooling solutions that keep Floyds Knobs families comfortable even during the hottest months.

We offer a full range of cooling services in Floyds Knobs for every kind of home:

Floyds Knobs Plumbing Problems Solved With Confidence

No one wants to deal with a burst pipe or a surprise leak, but when you do, it helps to know a reliable plumber is nearby. A+ Derr delivers expert plumbing solutions to Floyds Knobs homes with speed and care.

Our plumbers in FLoyds Knobs are trained, licensed, and ready to handle jobs big and small:

Floyds Knobs Electrical Services You Can Trust

ev charger

Whether you’re upgrading your panel or just tired of flickering lights, our licensed electricians bring the skills and professionalism your home deserves. We take every precaution to ensure safety and quality, because electricity isn’t something you leave to guesswork.

Here’s how we keep Floyds Knobs powered up and protected:

Call A+ Derr Today—Floyds Knobs’ Go-To for Home Comfort

From clogged drains to complete system overhauls, A+ Derr Heating, Cooling, Plumbing & Electrical is the one call you can count on. We believe in honesty, reliability, and doing every job the right way—because that’s what our Floyds Knobs neighbors deserve.

Get in touch today by calling 833-232-4328 or contacting us online to schedule your Floyds Knobs home service or ask a question. We’re here to help you live more comfortably, confidently, and efficiently, season after season.

Recent Jobs and Reviews in Floyds Knobs, IN

Job Locations and Reviews

# HVAC Install - Complete System

Successfully completed full HVAC system installation featuring a Lennox furnace unit. The installation was performed in a utility area with proper clearances and professional workmanship throughout.

The furnace was mounted on a white platform base with adequate structural support. Galvanized sheet metal ductwork was installed above the unit to ensure proper airflow distribution. White PVC condensate drain piping was configured in a U-shaped trap on the left side of the furnace to facilitate proper drainage and prevent airflow issues.

Internal components were properly installed and verified, including the blue flame igniter assembly mounted on refractory board with appropriate electrical connections. Gas valve and pressure switch components were secured with proper fittings and connections. All electrical wiring was routed correctly throughout the system, including red, purple, and white conductor wires to burner assembly, blower motor, and control co
# HVAC Install - Complete System

Successfully completed full HVAC system installation featuring a Lennox furnace unit. The installation was performed in a utility area with proper clearances and professional workmanship throughout.

The furnace was mounted on a white platform base with adequate structural support. Galvanized sheet metal ductwork was installed above the unit to ensure proper airflow distribution. White PVC condensate drain piping was configured in a U-shaped trap on the left side of the furnace to facilitate proper drainage and prevent airflow issues.

Internal components were properly installed and verified, including the blue flame igniter assembly mounted on refractory board with appropriate electrical connections. Gas valve and pressure switch components were secured with proper fittings and connections. All electrical wiring was routed correctly throughout the system, including red, purple, and white conductor wires to burner assembly, blower motor, and control co
Kenny H.
Kenny H. Checked in
# HVAC Install - Complete System Successfully completed full HVAC system installation featuring a Lennox furnace unit. The installation was performed in a utility area with proper clearances and professional workmanship throughout. The furnace was mounted on a white platform base with adequate structural support. Galvanized sheet metal ductwork was installed above the unit to ensure proper airflow distribution. White PVC condensate drain piping was configured in a U-shaped trap on the left side of the furnace to facilitate proper drainage and prevent airflow issues. Internal components were properly installed and verified, including the blue flame igniter assembly mounted on refractory board with appropriate electrical connections. Gas valve and pressure switch components were secured with proper fittings and connections. All electrical wiring was routed correctly throughout the system, including red, purple, and white conductor wires to burner assembly, blower motor, and control co
Floyds Knobs, IN 47119
Completed replacement estimate for 30-year-old non-functional HVAC system. Assessed existing gray furnace unit with associated PVC venting and drainage lines in basement mechanical room, along with exterior condensing unit showing significant rust staining on access panel compartment. Customer requested replacement-only estimate with no repair options due to age and condition of equipment.
Completed replacement estimate for 30-year-old non-functional HVAC system. Assessed existing gray furnace unit with associated PVC venting and drainage lines in basement mechanical room, along with exterior condensing unit showing significant rust staining on access panel compartment. Customer requested replacement-only estimate with no repair options due to age and condition of equipment.
Brad C.
Brad C. Checked in
Completed replacement estimate for 30-year-old non-functional HVAC system. Assessed existing gray furnace unit with associated PVC venting and drainage lines in basement mechanical room, along with exterior condensing unit showing significant rust staining on access panel compartment. Customer requested replacement-only estimate with no repair options due to age and condition of equipment.
Floyds Knobs, IN 47119
Performed leak search inspection in bathroom area. Located copper supply line within wall cavity requiring access through EdgeGuard moisture barrier. Utilized drain snake to investigate potential blockage in floor drain. Visual inspection revealed minor water spots/staining on decorative tile flooring, possibly indicating intermittent leakage. Further repair recommendations provided to customer.
Performed leak search inspection in bathroom area. Located copper supply line within wall cavity requiring access through EdgeGuard moisture barrier. Utilized drain snake to investigate potential blockage in floor drain. Visual inspection revealed minor water spots/staining on decorative tile flooring, possibly indicating intermittent leakage. Further repair recommendations provided to customer.
Paul G.
Paul G. Checked in
Performed leak search inspection in bathroom area. Located copper supply line within wall cavity requiring access through EdgeGuard moisture barrier. Utilized drain snake to investigate potential blockage in floor drain. Visual inspection revealed minor water spots/staining on decorative tile flooring, possibly indicating intermittent leakage. Further repair recommendations provided to customer.
Floyds Knobs, IN 47119
Responded to customer complaint of water leak damaging basement ceiling below master shower. Performed thorough inspection of shower components including the lever-style shower control handle and ceiling-mounted rainfall showerhead. Identified and repaired leak source to prevent further water damage to basement ceiling.
Responded to customer complaint of water leak damaging basement ceiling below master shower. Performed thorough inspection of shower components including the lever-style shower control handle and ceiling-mounted rainfall showerhead. Identified and repaired leak source to prevent further water damage to basement ceiling.
Paul G.
Paul G. Checked in
Responded to customer complaint of water leak damaging basement ceiling below master shower. Performed thorough inspection of shower components including the lever-style shower control handle and ceiling-mounted rainfall showerhead. Identified and repaired leak source to prevent further water damage to basement ceiling.
Floyds Knobs, IN 47119
Diagnosed 5-year-old HVAC system with no airflow and complete system failure despite intact breakers. Inspected electrical components including JARD capacitor and Emerson control board, finding faulty relay switch causing communication failure between thermostat and unit. Replaced relay switch, restored proper circuit communication, and verified system operation with normal airflow restored.
Diagnosed 5-year-old HVAC system with no airflow and complete system failure despite intact breakers. Inspected electrical components including JARD capacitor and Emerson control board, finding faulty relay switch causing communication failure between thermostat and unit. Replaced relay switch, restored proper circuit communication, and verified system operation with normal airflow restored.
Jordyn R.
Jordyn R. Checked in
Diagnosed 5-year-old HVAC system with no airflow and complete system failure despite intact breakers. Inspected electrical components including JARD capacitor and Emerson control board, finding faulty relay switch causing communication failure between thermostat and unit. Replaced relay switch, restored proper circuit communication, and verified system operation with normal airflow restored.
Floyds Knobs, IN 47119
Floyds Knobs, IN - Responded to customer concern regarding water rushing noise that began after recent maintenance service. Diagnostic inspection was performed using Fieldpiece multimeter to evaluate electrical parameters of the 5-year-old HVAC system. Customer had previously reported this issue without receiving follow-up as promised.
Anthony L.
Anthony L. Checked in
Responded to customer concern regarding water rushing noise that began after recent maintenance service. Diagnostic inspection was performed using Fieldpiece multimeter to evaluate electrical parameters of the 5-year-old HVAC system. Customer had previously reported this issue without receiving follow-up as promised.
Floyds Knobs, IN 47119
What To Expect

Discover The A+ Derr Difference

24/7 Heating & Cooling Repairs​

Heating and cooling emergencies can happen on nights, weekends, and holidays, so you can trust us to be there no matter when you need us.

Licensed & Experienced Technicians​

Our experts have the expertise and training to deliver the highest quality services every time.

100% Satisfaction Guarantee​

Our team is dedicated to ensuring your 100% satisfaction with every HVAC service we perform.

Servicing All Major Makes & Models Of Equipment

We are a Lennox Premier Dealer and also service on all makes and models of equipment, including Goodman, Amana, Carrier, Trane, Rheem & more!

Locally Owned & Operated​

Since we’re based in Kentuckiana, we know the needs of Evansville, Louisville, and surrounding communities.

50+ Years in Business​

For over 50 years, A+ Derr has provided high-quality service, products, and results for Kentuckiana's residents.

24/7 Heating & Cooling Repairs​

Heating and cooling emergencies can happen on nights, weekends, and holidays, so you can trust us to be there no matter when you need us.

Licensed & Experienced Technicians​

Our experts have the expertise and training to deliver the highest quality services every time.

100% Satisfaction Guarantee​

Our team is dedicated to ensuring your 100% satisfaction with every HVAC service we perform.

Servicing All Major Makes & Models Of Equipment

We are a Lennox Premier Dealer and also service on all makes and models of equipment, including Goodman, Amana, Carrier, Trane, Rheem & more!

Locally Owned & Operated​

Since we’re based in Kentuckiana, we know the needs of Evansville, Louisville, and surrounding communities.

50+ Years in Business​

For over 50 years, A+ Derr has provided high-quality service, products, and results for Kentuckiana's residents.

Review Image
Our Reviews

See What Your Neighbors Are Saying

I would recommend A+ Derr and their staff any day! Best service I have ever had! Go to them for your Heating and Cooling needs. You will not be disappointed.

Barbara C.

Barbara C.

Very good service. Knowledgeable HVAC experts always keeping us cool in the summer and warm all winter. This is a great team of professionals from start to finish.

Craig B.

Craig B.

Amazing level of courtesy and professionalism. Communication was great and the price was more than reasonable. Highly recommend.

Chip M.

Chip M.

Guys came and installed two full systems at the house. Respectful, cleaned up after themselves and answered any and all questions. Thank you again!! Definitely recommend!

Jason H.

Jason H.

Very knowledgeable and courteous. Toured me through all the functions of the new unit. Completed work very neatly and respectfully. Would recommend to anyone.

Derek S.

Derek S.