When you need dependable electrical services in Sarnia, ON, trust Postma Heating & Cooling. Our background-checked technicians handle everything from same-day electrician calls to electrical panel replacement, electrical panel upgrade projects, and whole-home generator installations. As a full-service electrical contractor, we use the latest technology, provide thorough, educated troubleshooting before work begins, and back every visit with 100% guaranteed satisfaction. Expect rapid response and fast fixes, clear communication, and safety- and cleanliness-focused work—every time.
Have a quick question about an outlet sparking or a tripping breaker in Sarnia? Visit our Frequently Asked Questions for expert guidance and our on-time service promise.
Electrical Repair & Troubleshooting in Lambton County
Electrical problems can escalate quickly. If you notice burning odors, repeated breaker trips, partial power loss, buzzing at the panel, or sparking outlets, you need an electrician who can diagnose safely and resolve the root cause. Postma Heating & Cooling prioritizes same-day services across Lambton County with fast dispatch, careful diagnostics, and straightforward pricing so you know exactly what will be done and why.
Our process begins with a safety check to stabilize hazards and protect your home. We verify grounding and bonding, isolate problematic circuits, and utilize advanced tools—such as thermal imaging, circuit tracers, and high-accuracy meters—to pinpoint the issue. Then we explain your options, provide flat-rate pricing, and complete the repair to code.
Common issues we resolve:
- Breaker that will not reset, nuisance tripping, or overheating breakers
- Flickering lights, brownouts, or multiple rooms losing power
- Hot, buzzing, or discolored outlets and switches
- GFCI and AFCI testing, nuisance tripping, and replacement
- Damaged wiring, loose connections, failed splices, or aluminum wiring corrections
- Light fixture, ceiling fan, and switch failures
- Code and safety corrections after a home inspection
Why Sarnia homeowners choose Postma:
- Rapid response and fast fixes by skilled, professional, and personable technicians
- Same-day services when available and on-time service windows
- Flat-rate, straightforward pricing with no surprise add-ons
- Proactive, clear communication and scheduling from first call to final test
- 9-time winner of the Best of CK award for proven customer care
Signs You Need an Electrician Now
- Burning smell at a panel, outlet, or light fixture
- Sparking when plugging in a device
- Breaker trips immediately or will not reset
- Warm, buzzing, or discolored outlets and switches
- Lights dim when appliances start or power dips across multiple rooms
Electrical Panel Repair & Replacement Services in Lambton County
Your electrical panel—whether a breaker box or a fuse box panel—must be properly sized and maintained to power your home safely. Aging panels, corroded bus bars, and undersized service can cause nuisance tripping, overheating, and fire hazards. Postma Heating & Cooling offers electrical panel repair, breaker panel replacement, and electrical panel upgrades tailored to your current loads and future plans.
What we offer:
- Breaker box repair and breaker box installation for renovations and additions
- Electrical panel replacement and electrical panel upgrade to higher amperage
- Fuse box replacement and safe conversions from fuse to breaker systems
- Subpanel installation for garages, workshops, and basement suites
- Whole-home load calculations, circuit mapping, and tidy, accurate labeling
- Surge protection and AFCI/GFCI additions to enhance safety
- Full permitting, utility coordination, and inspection support for a seamless process
When to consider panel service:
- Frequent breaker trips or a breaker that feels hot to the touch
- Rust, water intrusion, or corrosion inside the panel
- Buzzing, crackling, or heat at the panel cover
- Not enough capacity for EV chargers, hot tubs, heat pumps, or new appliances
- Outdated or obsolete fuse box panel or older breaker models
- Renovations or outbuildings requiring additional circuits
What to expect with Postma:
- Reliable project management for complex installs and utility coordination
- Straightforward pricing and clearly defined scopes of work
- Safety- and cleanliness-focused work with full site cleanup
- Consistent aftercare and maintenance to protect your investment
Planning a Service Upgrade or EV Charger?
We size your electrical panel correctly for today’s needs and tomorrow’s plans. From dedicated circuits for EV chargers to subpanels for workshops and surge protection for sensitive electronics, we’ll help you make smart, code-compliant upgrades.
Whole House Generator Services in Sarnia, ON
A whole-home generator delivers instant peace of mind when storms and outages occur. Keep heating systems, sump pumps, refrigeration, and essential devices powered automatically with a professionally sized and installed standby generator. Postma Heating & Cooling provides standby generator installation, upgrades, maintenance, and repairs throughout Sarnia and the surrounding communities.
Our standby generator installation process:
- Site assessment and load evaluation to right-size your system
- Professional gas line routing, pad setting, and electrical integration
- Automatic transfer switch installation for seamless switchover
- Commissioning, performance verification, and homeowner training
- Maintenance plans and repairs to keep your generator ready
- Upgrades, relocations, and replacements for aging units
Why install a whole home generator:
- Automatic power within seconds of an outage
- Prevents basement flooding by keeping sump pumps running
- Protects against frozen pipes and food spoilage
- Supports medical equipment and home office needs without interruption
- Adds resale value and day-to-day peace of mind
Project management you can trust:
- End-to-end planning with permits, utility coordination, and inspections handled for you
- Manufacturer warranty advocacy that saves customers money when eligible
- Latest technology for safe sizing, wiring, fuel, and commissioning
- Clear timelines, clean worksites, and documented results
Generator Maintenance That Prevents Surprises
Annual maintenance extends lifespan and ensures performance. We perform load tests, verify transfer switch operation, inspect gas connections, replace filters, and document everything so you always have a clear service record.
Thinking about a major upgrade? Visit our News & Media for seasonal tips and how-to guides on safe power usage, outage preparation, and project planning in Sarnia.
Why Choose Postma Heating & Cooling for Electrical Services in Sarnia, ON
Choosing the right electrical contractor impacts the safety and reliability of your home. Postma Heating & Cooling combines local expertise with a customer-first process so every job is done right.
What sets us apart:
- Same-day services and on-time arrivals
- Background-checked technicians who respect your home and time
- Thorough, educated troubleshooting before work starts
- Straightforward pricing and honest repair vs. replace guidance
- Problem-solving in challenging situations, including older homes and tight spaces
- Safety- and cleanliness-focused work following code and manufacturer specs
- Membership program with real savings, priority scheduling, and consistent aftercare and maintenance
What you can expect at your appointment:
- A focused safety check and clear diagnosis in plain language
- Options tailored to your needs with flat-rate pricing upfront
- Work completed to code with meticulous attention to detail
- Final verification, documentation, and prevention tips before we leave
Call Postma Heating & Cooling at 519-354-9491 for expert electrical service in Sarnia, ON. Book a same-day electrician or schedule your estimate today.