Fast, Reliable Electric Motor Repair
When your motor breaks down, time is money. Square One Electric Motors & Pumps delivers fast, precise, and professional electric motor repair services designed to reduce your downtime and restore your operations with minimal delay. Our technicians are trained to handle everything from small commercial motors to heavy-duty industrial equipment.
We specialize in industrial and commercial electric motor repair services, including single-phase and three-phase motors, fractional horsepower to 2,500HP, and low to medium voltage systems. Our services include everything from motor rewinds and gearbox repair to dynamic balancing and field service repairs.
📞 Call us 24/7 — We Answer Anytime, Day or Night!
🏭 Why Choose Square One Electric Motors & Pumps?
Choosing the right motor repair shop can make all the difference. Square One is a trusted name in the Mid-Atlantic region thanks to our full-service facility, technical expertise, and unmatched customer support. We go beyond repair—we provide long-term solutions to keep your systems running strong.
- Overhead Cranes with 7.5-ton lifting capacity
- 24/7 Emergency Support with live answering service
- Pickup & Delivery Services available
- Authorized Warranty Service Center for most brands
- Onsite Repair Services for large or non-removable equipment
- In-House Machine & Rewind Shop for faster turnaround and quality control
🔍 Electric Motor Inspection & Diagnostic Services
The first step to any successful repair is an accurate diagnosis. Our comprehensive inspection and testing services identify both visible and hidden issues. Using advanced tools and decades of experience, our team ensures your equipment is repaired right the first time.
📖 Read Our Blog: 5 Maintenance Tips to Avoid Machine Failure
Our technicians use state-of-the-art diagnostic tools to quickly and accurately identify faults, including:
- Electrical testing
- Vibration analysis
- Infrared thermography
- Bearing and shaft inspection
- Load testing and simulation
📈 We provide our findings and recommended repairs before any work begins.
⚡ Common Electric Motor Problems We Repair
Electric motors can fail for many reasons—but we fix them all. From worn bearings and voltage imbalance to broken windings and contamination damage, our experts diagnose and repair the full range of electric motor issues. No matter the challenge, we have the tools and training to restore your motor to optimal condition.
Common Repairs:
- Worn or damaged bearings
📖 Read Our Blog: Common Bearing Failures
- Shaft misalignment
- Overheating and insulation failure
- Rotor and stator faults
- Contaminant ingress (dust, dirt, oil, moisture)
- Voltage imbalance and electrical overload
- Excessive vibration and noise
- Ground faults and winding shorts
💡 Pro Tip: Regular maintenance can prevent 70% of electric motor failures. Ask about our preventative maintenance programs!
💰 How Much Does Electric Motor Repair Cost?
We’re committed to transparent pricing—after a full inspection, you’ll receive a no-pressure quote with all your options, including new motor replacement if applicable.
How much does it cost to fix an electric motor? It depends on:
- Horsepower & motor size
- Type of failure (mechanical or electrical)
- Parts needed (e.g., bearings, windings)
- Labor & testing requirements
🔎 Example:
- 1HP motor with bearing replacement: Low cost and quick turnaround.
- 50HP motor rewind: Higher cost due to materials and labor.
✅ Advice After Inspection
If your repair is close to the price of a new unit, we’ll also provide a quote for a replacement motor so you can make the best decision for your budget.
🛠️ Electric Motor Rewind Shop
Top-Quality Motor Rewinding, Guaranteed to Perform. If your motor windings are damaged, a professional rewind can restore performance. Our in-house rewind shop uses only premium materials and EASA-approved practices to deliver reliable results. Whether you need a simple rewind or a custom redesign, we’re equipped to handle it.
Our in-house Electric Motor Rewind Department uses only:
- Inverter-duty magnet wire
- Class H insulation materials
- Core loss testing equipment
We follow best practices proven to retain or slightly improve motor efficiency after a rewind, based on EASA standards and studies from 2003 & 2019.
Motor Rewind Services
- Custom motor redesigns (speed, torque, HP modifications)
- Core loss testing and surge testing
- Meg-Ohm resistance checks and polarization index
- Insulation resistance and imbalance tests
🧰 In-House Machine Shop Services
Having an in-house machine shop saves time and improves quality. From custom shafts to sandblasting and keyway repair, our machining team supports the entire repair process. We maintain tight control over production to ensure every part meets or exceeds original specs.
Machine Shop Capabilities
- Spray welding and metalizing
- Dynamic balancing (up to 5,000 lbs.)
- Shaft modification and fabrication
- Keyway cutting and repair
- Sandblasting
- Drilling, tapping, milling
- Sleeve endbell fabrication
- 100-ton horizontal press for heavy-duty jobs
📍 Fast turnaround. Better quality. Lower cost. That’s the advantage of doing it all under one roof.
🔁 Dynamic Balancing Services
Unbalanced rotating equipment can lead to premature bearing failure, noise, and structural damage. We provide precision dynamic balancing services both in our shop and at your facility.
Rotating equipment must be balanced for safe and efficient operation. Whether you’re dealing with vibration, bearing wear, or noise issues, we’ll rebalance your equipment and get you running smoothly.
Benefits of Dynamic Balancing
- Extend machine life
- Reduce vibration
- Improve energy efficiency
- Lower noise levels
- Prevent damage to connected equipment
- Improve workplace safety
📦 Have heavy or immobile equipment? We come to you for onsite balancing — keeping your downtime to a minimum.
⚙️ Industrial Gearbox Repair & Rebuilds
Gearbox issues can shut down your system—fast. Our experienced machinists and mechanics repair and rebuild gearboxes to OEM standards or better. With faster turnaround and lower cost than replacement, repairing your gearbox can get you back online with minimal disruption.
We repair gearboxes and speed reducers from all major brands including:
- SEW Eurodrive
- Worldwide
- Falk
- Rexnord
- Grove Gear
- Peerless Winsmith
Why Repair Instead of Replace?
- Faster lead time — no weeks-long wait for new units
- Lower cost — especially on large or custom gearboxes
- Longer service life with upgraded internal components
🔧 We offer complete gearbox tear-downs, gear inspection, alignment, reassembly, and performance testing.
🧠 Gearbox Failures: What to Watch For
Not all gearbox issues originate from the gears. Not all gearbox problems are obvious. Internal gear issues like pitting, scoring, and fatigue often go unnoticed until a breakdown occurs. Learn how to recognize early warning signs of failure and how proper lubrication and alignment can extend the life of your gear systems.
Here's a quick guide to common failures:
- Pitting: Cracks that become pits, often caused by rolling/sliding contact
- Micropitting: Surface-level frosted areas leading to noise and wear
- Scuffing (Scoring): Metal-to-metal contact damage
- Bending Fatigue: Cracks at the gear tooth root from repetitive stress
- Wear: Ongoing loss of material from inadequate lubrication
🛢️ TIP: Always check lubricant temperature and viscosity. Heat is the #1 enemy of gearbox longevity.
🛞 Fan & Blower Wheel Repair
Fan and blower wheel imbalances can lead to major operational issues. Damaged fan blades and impellers can severely impact airflow and system efficiency. Our repair services restore your cooling systems by correcting alignment problems and replacing damaged components. We balance, repair, and rebuild wheels for longer-lasting, quieter performance.
Our team repairs:
- Centrifugal blower wheels
- HVAC fan assemblies
- Cooling tower fans
- Flywheels and rotating assemblies
We correct issues caused by vibration, misalignment, or metal fatigue, using precision balancing and fabrication techniques.
🔌 We Repair All Major Motor Types & Brands
We’re a one-stop shop for all your electric motor needs. No matter the brand or type of motor, our technicians have the expertise to repair it. From AC induction to DC and specialty motors, Square One brings years of hands-on experience to every job.
Square One services virtually any make and model, including:
- AC Induction Motors (Single & Three Phase)
- DC Motors
- Metric Motors
- Explosion-Proof Motors
- Vertical Hollow Shaft Motors
- Brakemotors
- Gearmotors
- Blowers & Fans
- Synchronous Motors
- Cooling Towers
- Pumps (Centrifugal, Submersible, etc.)
- Actuators
- Industrial Generators
🧰 If it spins, rotates, or powers your operation — we fix it.
🧭 Service Area & Pickup / Delivery
Need service? We’ve got you covered. Square One Electric Motors & Pumps serves customers throughout the Mid-Atlantic region. Our pickup and delivery service ensures your repairs are handled quickly and efficiently, without extra hassle. We proudly serve customers throughout:
- Delaware
- Pennsylvania
- Maryland
- New Jersey
📦 Pickup and delivery services are available for all clients. Let us take the logistics off your plate.
📞 Contact Square One Electric Motors & Pumps Today
We’re here when you need us—no matter the hour. Whether you’re planning maintenance or dealing with an emergency, Square One is just a call away. Our responsive team will guide you through the repair process, answer your questions, and get you back on track fast.
Have an urgent issue? Need a quote? Want to schedule a pickup?
📲 Call Us Now: (302) 678-0400
📧 Email: sales@sqone.com
📍 Visit: 347 Fork Branch Road, Dover DE 19904
✅ We respond to service requests quickly, even after hours.