Heat Pump Repair in Sarnia & Lambton County

Why Choose Lambton Heating and Cooling For Your Heat Pump Repair Needs

When your heat pump stops working, you need fast, reliable service from a team you can trust. Lambton ClimateCare has been proudly serving the community for over 55 years, delivering expert heat pump repair services on all major brands and models. Our licensed HVAC technicians provide thorough diagnostics, professional repairs, and transparent recommendations to restore comfort quickly and efficiently. Whether you’re in Sarnia, Bright’s Grove, Point Edward, Corunna, Lambton Shores, or anywhere in Lambton County, our local team is committed to keeping your home warm in winter and cool in summer. With decades of trusted experience, we ensure your heat pump operates at peak performance, helping you avoid costly breakdowns and enjoy dependable year‑round comfort.

Transparent Heat Pump Repair Pricing

Know the cost before we begin. We provide clear, honest pricing for all heat pump repairs with no hidden fees or unexpected add-ons.

Same-Day Heat Pump Repair Service

We restore comfort quickly. Our team responds fast and offers same-day heat pump repair across Sarnia, Bright’s Grove, Corunna, and surrounding areas.

Licensed heat pump technician repairing all heat pump brands

We Repair All Heat Pump Brands

From cold-climate heat pumps to older systems, our technicians are trained to diagnose and repair every major make and model.

Repairs Backed by Parts & Labour Warranties

Every repair is supported by strong parts and labour warranties, giving you protection and confidence in the work.

Customer satisfaction guaranteed on heat pump repairs

100% Satisfaction Guarantee

Your comfort matters. If you’re not fully satisfied with your heat pump repair, we’ll make it right—at no extra cost.

NEED HEAT PUMP REPAIRS?

We provide same-day heat pump repair throughout Sarnia and Lambton County. From frozen coils to thermostat issues and reduced heating output, our certified technicians diagnose the problem quickly and restore efficient year-round performance.

519-344-5521 contact@lambtonclimatecare.com

Same-day heat pump diagnostics & repairs
Repairs for ductless, hybrid & cold-climate systems
Trusted with time-sensitive repairs since 1969

Book Service or Request a Quote

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24/7 Emergency Heating Support

WE REPAIR ALL HEAT PUMP BRANDS IN SARNIA AND LAMBTON COUNTY

Lambton ClimateCare services and repairs all major heat pump brands. Whether you have a cold-climate heat pump, a ductless system, or a hybrid setup, our licensed technicians can diagnose and repair any model.

Lennox
Carrier
Mitsubishi Electric
Daikin
Trane

Mitsubishi Zuba
Fujitsu
Bryant
American Standard
Keeprite

Goodman
Rheem
Ruud
York
Armstrong Air

Napoleon
Coleman
Amana
Bosch
And Many Others

Signs of Heat Pump Trouble & How We Repair It

If your heat pump is not working properly, these issues often signal failing components, low refrigerant, electrical faults, or airflow restrictions. Below is a quick guide to help you recognize the symptoms — and how our licensed technicians diagnose and repair them.

Blowing Cold Air in Heating Mode

May indicate refrigerant loss, reversing valve failure, or compressor issues.

Short-Cycling or Constant Running

Often caused by faulty sensors, clogged filters, electrical problems, or airflow issues.

Unusual Noises or Vibration

Rattling, buzzing, or grinding sounds point to mechanical or electrical wear.

Ice Buildup on the Outdoor Unit

Usually caused by a defrost-cycle fault, low refrigerant, or restricted airflow.

How Our Heat Pump Repair Process Works

Our repair process is designed for accuracy, transparency, and long-term reliability. Most importantly, it is designed to ensure you have a great experience and the issue is fixed as quick as possible.

1. System Diagnosis

We assess electrical components, refrigerant levels, sensors, and airflow to determine the exact cause of the issue.

2. Transparent Repair Estimate

You receive a clear, upfront quote outlining the required repairs. You approve the work before we begin—no surprises.

3. Perform The Repair

We complete the repair, replace parts if needed, and correct the underlying issue safely and efficiently.

4. Final Performance Testing

We verify correct refrigerant pressures, airflow, temperature output, and cycling to ensure your system operates at peak performance.

Frequently Asked Heat Pump Repair Questions

Heat pump repair costs in Sarnia and Lambton County typically range from $250 to $1,200+, depending on the issue, parts required, and diagnostic complexity. We provide a transparent quote before any work begins, so you always know the exact price upfront.

This usually means there is a refrigerant issue, reversing valve malfunction, dirty coil, or the system is stuck in defrost mode. We can diagnose the cause quickly and restore proper heating performance.

Common issues include refrigerant leaks, frozen outdoor coils, reversing valve failures, bad contactors, faulty sensors, clogged filters, and electrical control failures. Our technicians diagnose and repair all heat pump brands and configurations.

Yes — we provide same-day and emergency heat pump repair across Sarnia, Point Edward, Bright’s Grove, Corunna, and Lambton Shores. If your heat pump stops working during extreme temperatures, we prioritize your service call.

No. Heat pumps involve refrigerant systems, high-voltage components, defrost controls, and sensitive electronics. DIY repairs can cause further damage, void warranties, or create safety risks. Always use a licensed technician.

If your heat pump is under 12 years old and the repair is less than 30% of the replacement cost, repair is usually the best option. Older units, systems with repeated failures, or heat pumps using discontinued components may be more cost-effective to replace.

Yes. We repair ductless mini-splits, dual-fuel hybrid systems, and cold-climate heat pumps from brands like Mitsubishi, Lennox, Carrier, Daikin, Bosch, and Fujitsu. We also service older units and discontinued models.

Yes — all heat pump repairs include a 1-year parts warranty and a 90-day labour warranty. If an issue returns, we fix it promptly at no additional cost.

Ice buildup happens when the defrost cycle fails, airflow is restricted, refrigerant is low, or sensors malfunction. Continued freezing can cause major damage — we strongly recommend a diagnostic before the system is used again.

Annual maintenance, regular filter changes, coil cleaning, and early attention to performance changes are key. We offer maintenance plans to keep your heat pump efficient and reduce the risk of unexpected failures.