Furnace Repair London
Furnace failures and M&K Heating and Air Conditioning don’t follow a schedule. We provide 24/7 emergency furnace repair in London to quickly bring warmth back to your home. Whether your furnace goes out in the early morning or on a long weekend, our team is always standing by to deliver prompt, professional service, 24/7. When your heating system needs immediate attention, we move fast to restore comfort.

Why Choose M&K Heating and Air Conditioning for Your Furnace Service?
We’re On Our Way!
Need a furnace repair in a hurry? We’re available every day of the year in London to handle emergency calls and routine repairs alike. There’s no outsourcing—we send our own local team who knows your area. You’ll get fast arrival times and dependable service that keeps your home warm without the delays.
Repairs That Prevent Future Breakdowns
Fixing the same problem over and over wastes time and money. Some repairs only mask the issue, which means the system breaks down again. At M&K Heating and Air Conditioning, we look deeper to solve the underlying issue and get your furnace operating efficiently. Using certified components and tested repair methods, we help reduce stress on your system and avoid more service calls down the line.
Reliable Furnace Service from Experts Who Put You First
A broken furnace is more than an inconvenience—it’s an urgent situation. That’s why we focus on fast responses and clear updates throughout the repair process. Our technicians arrive fully prepared to resolve a wide variety of issues on the first visit. No delays, no unexpected charges—just furnace service focused on restoring your home’s heat quickly.
Guaranteed Comfort, No Fine Print
Furnace repair should come with confidence, not confusion. At M&K Heating and Air Conditioning, we back every job with clear results. If anything isn’t right after within the warranty period, we’ll return to address it at no extra charge.
Is your furnace out in the middle of the night? Our emergency repair services are available around the clock. When your heating stops working, our experienced team is ready to restore it fast. Call M&K Heating and Air Conditioning for fast and reliable furnace repair in London.
Our Furnace Repair Service Process
Step 1: A Careful Inspection to Find the Real Problem
We examine the entire system, from burners to gas connections, to locate what’s causing the malfunction. If you’re calling for routine furnace service, we begin with a detailed inspection of your unit.
Step 2: Smart Diagnostics That Get It Right the First Time
Our diagnostic equipment helps pinpoint the exact cause of the problem—whether it’s poor airflow, ignition issues, or sensor malfunctions. We aim to diagnose the issue quickly and accurately to minimize downtime.
Step 3: Upfront Repairs with No Surprises
You’ll always know what’s happening with your furnace. We explain the issue in easy-to-understand terms and go over your repair options. Before any work begins, you’ll receive an accurate cost estimate—no guesswork, no surprises.
Step 4: Fast Part Replacements to Get Your Heat Back
We carry common furnace parts in our vehicles, from flame sensors to gas valves, so we can often complete repairs immediately. No extra appointments or long waits for parts—we’re ready to get your system running again on the same day.
Step 5: Boosting Performance While We’re at It
We don’t just repair—we optimize. While we’re working on your furnace, we clean internal parts, check the air filter and blower, and fine-tune performance. These steps help your system work better and may prevent future issues.
Step 6: Final Safety Checks
Before finishing, we perform a full safety test to ensure the system is running securely. We inspect ventilation and check for carbon monoxide leaks so your furnace is not only working, but operating safely. When you call for emergency furnace repair, we leave your system better than we found it.
Common Furnace Problems
Even with regular upkeep, furnaces can run into problems. Below are several furnace issues that often require expert attention:
Furnace Blowing Cold Air
- Faulty Ignition System – A malfunctioning igniter or dirty pilot light assembly can stop your furnace from producing heat.
- Dirty Flame Sensor – A grimy flame sensor may not recognize the flame and will shut off the gas for safety.
- Thermostat Issues – Dead batteries, poor wiring, or incorrect settings can interfere with your furnace’s ability to heat properly.
Furnace Won’t Turn On
- Tripped Circuit Breaker – Power surges or overloaded circuits can trip the breaker, cutting power to your furnace system.
- Blower Motor Failure – If your blower motor is burned out or the capacitor fails, your furnace won’t be able to circulate air.
- Clogged Air Filter – A clogged filter restricts airflow and may cause overheating, which can activate the high-limit switch and shut the system down.
Strange Noises or Smells
- Banging or Rattling – Loose furnace parts, ignition delays, or blower motor problems can cause loud or unusual noises.
- Burning Smell – The smell could be from dust on the heat exchanger, electrical components overheating, or motor wear.
- Gas Smell – If you smell gas, turn off your system, leave your home, and get help immediately. It could signal a leak, which is dangerous.
If any of these issues sound familiar, M&K Heating and Air Conditioning’s licensed team in London is ready to act. We’ll inspect your unit, explain the situation clearly, and provide quick, efficient service to get your furnace back on track.
Frequently Asked Questions About Furnace Repair
Experiencing Constant Furnace Issues?
Say goodbye to unreliable heating. M&K Heating and Air Conditioning offers dependable furnace repair in London, whether it’s a routine fix or an after-hours emergency. Our team is available 24/7 to restore your home’s comfort!
How Often Should I Have My Furnace Serviced?
To keep your furnace in good condition, schedule a professional tune-up once a year—ideally in early fall. Seasonal furnace service helps identify worn parts, increase system efficiency, and avoid unexpected breakdowns during the coldest months.
How Much Does a Furnace Repair Cost?
Repair costs depend on the part and the complexity of the issue. Minor repairs like replacing a thermostat or cleaning a sensor are generally more affordable, while components such as blower motors or heat exchangers can be more costly to replace.
How Many Years Does a Furnace Last?
A typical furnace will last between 15 and 20 years. However, systems that receive regular servicing and timely repairs often perform reliably for longer. If you notice higher heating bills or frequent malfunctions, replacement may offer better value.
Can I Repair My Furnace Myself?
Handling furnace repairs without proper knowledge can lead to serious safety issues, including gas leaks or damage to your unit. For your safety and your system’s performance, furnace repairs should always be left to the qualified technicians at M&K Heating and Air Conditioning in London.