📍 Kirinyaga Road, Accra Ln, Nairobi, Kenya
🌊 Mombasa Specialist
🏙️ Nairobi Available
Generator Alternator Rewinding Services in Mombasa & Nairobi, Kenya
We provide expert generator alternator rewinding services in Kenya — restoring damaged, burnt, or failed alternator windings to full working condition. Our technicians use high-grade copper windings and precision insulation techniques to ensure your generator delivers stable voltage and long-term reliability.
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Mombasa Enquiry →
Serving Mombasa & the Entire Coast Region
Nyali · Bamburi · Likoni · Mtwapa · Diani · Kilifi · Malindi — on-site pickup & delivery available
What is Alternator Rewinding?
The alternator (also called the generator head or genset end) is the component that converts the engine's mechanical energy into electrical power. It contains copper wire windings — the stator (stationary outer coil) and the rotor (spinning inner coil) — through which electricity is generated via electromagnetic induction.
When these windings fail due to overheating, overloading, insulation breakdown, moisture ingress, or age, the alternator stops producing power. Rewinding involves stripping out the damaged windings and rewinding the stator or rotor with new, high-grade copper wire and fresh insulation materials — restoring the alternator to factory specification.
Signs Your Alternator Needs Rewinding
⚠️ Warning Signs
- 🔴 Generator produces low or no voltage output
- 🔴 Burning smell from the generator end
- 🔴 Alternator overheating during operation
- 🔴 Visible burn marks or scorching on windings
- 🔴 Generator trips under load repeatedly
- 🔴 Unstable or fluctuating voltage output
✅ After Rewinding
- ✓ Full rated voltage output restored
- ✓ Stable, consistent power delivery
- ✓ No overheating under rated load
- ✓ Extended alternator service life
- ✓ Verified with insulation resistance test
- ✓ Load-tested before handover
Our Alternator Rewinding Services
- Stator rewinding — complete stripping and rewinding of the stator coils with high-grade copper wire and Class H insulation
- Rotor rewinding — rewinding of the rotor exciter windings for correct field generation
- Insulation testing — megger insulation resistance testing before and after rewinding to confirm winding integrity
- Resistance checks — winding resistance measurements to confirm correct coil parameters
- Voltage instability correction — diagnosing and repairing windings causing fluctuating output
- Short circuit and earth fault repair — locating and correcting winding short circuits and earth faults
- AVR-related faults — diagnosing whether the fault is in the windings or the AVR, and repairing the correct component
- Exciter rewinding — repair of the exciter section on brushless alternators
- Load test after rewinding — full load verification to confirm rated output before return to service
Alternator Brands We Rewind
Stamford
Leroy Somer
Mecc Alte
Marathon
Markon
Newage
FG Wilson
Cummins / Stamford
We handle alternators for generators ranging from 10kVA to 1000kVA+.
Why Choose Us for Alternator Rewinding?
- High-grade copper wire and Class H insulation materials used on every rewind
- Skilled technicians with years of industrial alternator rewinding experience
- Fast turnaround time — minimising your generator downtime
- Cost-effective alternative to expensive alternator replacement
- Full insulation resistance and load testing before returning the alternator
- On-site collection and delivery in Mombasa and Nairobi
- Service warranty on all rewinding work
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Alternator Rewinding in Mombasa
Mombasa's coastal environment — high humidity, salt-laden air, and heat — is particularly harsh on generator alternators. Insulation deteriorates faster, moisture penetrates winding coils, and corrosion accelerates winding failure. This makes alternator rewinding an especially common requirement for generators operating in Mombasa and along the Kenyan coast.
Steve Roberts Generators serves the entire Mombasa coastal region — including Nyali, Bamburi, Likoni, Mtwapa, Diani, Kilifi, and Malindi. We offer on-site alternator assessment, collection for workshop rewinding, and re-installation at your premises.
Alternator Failed? We'll Rewind It Faster Than You Think.
Serving Mombasa, Nairobi, and all of Kenya. High-grade rewinding, fast turnaround, load-tested before return.