Furnace Installation & Repair
Keep your home warm all winter with expert furnace repair and installation. From emergency calls to routine maintenance, we keep your system safe and efficient.
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London's Furnace & Heating Specialists
No Heat? Get Your Furnace Running Fast in London, ON
London winters demand dependable performance from every heater. Our specialists deliver responsive furnace repair service for everything from airflow issues to complete failures. If your unit is outdated or inefficient, we’ll help you decide when it’s time to replace your furnace or when repairs still make sense. If you need a furnace you can rely on, our team installs high-efficiency solutions built for Ontario homes.
- 24/7 HVAC Service
- FinanceIt Financing
- 100% Satisfaction Guaranteed
- Licensed & Insured
24/7Emergency service
Licensed& fully insured
FreeNo-obligation quotes
Guaranteed100% satisfaction
LennoxPremier Dealer
About Us
The London Team That Keeps Your Heat On All Winter
At London Furnace Repair , we know a breakdown is more than an inconvenience, it affects daily routines, energy use, and air quality. Every system for your home plays a critical role, and our licensed HVAC technician team delivers residential and commercial solutions tailored to local conditions. From restoring a failing air conditioning system during summer heat to winter heating issues, our work reflects the standards of today’s HVAC industry.
Heating is our focus. We diagnose furnaces, heat pumps, and gas fireplaces, test for carbon monoxide, and get warm air moving again before the cold can do any damage. We also look after cooling, ductwork, and thermostats, so one local team can keep your home safe and comfortable in every season. You get straight answers, honest pricing, and clean work on every visit.
Backed by our 100% satisfaction guarantee on every job.
Full Service, One Team
Everything Your Home Comfort System Needs, Under One Roof
Heating, cooling, air quality, and controls, all looked after by the same crew. Whether it is a repair today or a maintenance plan that keeps things running for years, you only need one number.
AC Installation & Repair
Beat the heat with reliable AC repair for central and ductless systems, fast diagnostics, tune-ups, and replacements to keep you cool all summer.
Learn moreHeat Pumps
Year-round, energy-efficient heating and cooling. We help you select, install, and maintain heat pump systems that lower energy costs and boost comfort.
Learn moreDuct Cleaning
Dirty ducts force your furnace to work harder and push dust through your home. We clear the buildup that strains your heating system and hurts winter airflow.
Learn moreThermostats
An inaccurate thermostat leaves rooms cold and your furnace running too long. We repair and install programmable and smart models for precise heat and lower winter bills.
Learn moreDuctless AC Installation
Ideal for homes without ductwork, targeted, energy-efficient cooling and heating designed precisely around your space.
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Our Process
Why London Homeowners Call Us First
Clear answers, careful work, and a team that stands behind the heat in your home. Here is what every call looks like.
Honest Diagnosis First
Our comprehensive heating and cooling services are designed to support long-term performance and efficiency through smart upgrades, diagnostics, and professional care for both furnace and ac equipment.
Safe, Tidy Workmanship
When temperatures rise, performance matters. We provide detailed diagnostics and repairs that address airflow, efficiency, and system reliability. Whether you’re dealing with inconsistent cooling or aging equipment, our team helps you determine whether to repair or replace based on long-term value and comfort.
Here When It Gets Cold
London winters demand dependable performance from every heater. Our specialists deliver responsive furnace repair service for everything from airflow issues to complete failures. If your unit is outdated or inefficient, we’ll help you decide when it’s time to replace your furnace or when repairs still make sense. If you need a furnace you can rely on, our team installs high-efficiency solutions built for Ontario homes.
Testimonials
What London Homeowners Are Saying
We're proud to be the heating and cooling partner our neighbours recommend.
“I rely on London Furnace Repair for both my summer cooling and winter heating. Their team is always professional and keeps my home comfortable year-round.”
SM
Sarah M.London, ON
“The only HVAC company I trust for my business. Their emergency response was fast and kept our operations running smoothly.”
DR
David R.St. Thomas, ON
“I was really worried about our old heating system as winter approached, but the HVAC technician from London Furnace Repair was incredible. He walked me through a full furnace repair and even showed me how a dirty air filter was killing our efficiency. It’s rare to find a company that is this honest and professional. I’ll be calling them for all our heating and cooling needs from now on.”
JT
Jennifer T.Strathroy, ON
Local HVAC Help
More About Our Heating and Cooling Services
Helpful details from our local service team.
When your HVAC system struggles to keep up with Ontario’s unpredictable weather, London Furnace Repair delivers prompt, dependable repair service to restore reliable home comfort in your home or workplace, backed by professional heating and cooling expertise you can trust.
Proactive care reduces costly breakdowns and improves efficiency. Our plans support booking regular maintenance to extend equipment lifespan, improve air quality, and ensure dependable performance year-round, including systems tied to your water heater and ventilation components.
Serving London and surrounding areas, we take a customer-first approach that keeps service clear and stress-free. When you’re searching for an HVAC technician near you, our certified professionals deliver dependable workmanship and honest guidance from start to finish.
We offer rapid response for urgent heating and cooling failures, delivering reliable solutions when comfort and safety are on the line.
From minor repairs to an expert furnace installation, we provide clear estimates and transparent options so you can make confident decisions without pressure.
Our technicians arrive on time, protect your space, and leave work areas clean. From mechanical connections to ventilation safety, we ensure every service meets code and performance standards.
Comfort Care
Comfort Care: Our Annual Maintenance Plan
Keep your furnace, air conditioner, heat pump, or boiler running its best with a Comfort Care membership. Members get priority booking, 15% off repairs all year, and detailed service records that back your warranty, all from the same local team that already knows your equipment.
Ready to Improve Your Home Comfort?
From troubleshooting inefficiencies to system upgrades, London Furnace Repair supports homeowners through every stage of equipment ownership with dependable service and long-term value.
From the Blog
Latest News & Home Comfort Tips
Practical advice to help you get the most from your heating and cooling system in London's climate.
Home Comfort Tips
How Often Should You Service Your HVAC System in London, Ontario?
A reliable furnace needs a fall inspection before a London winter bites. Here is the maintenance schedule that keeps your heat steady and safe.
Read article
Home Comfort Tips
Signs Your Furnace Needs Repair Before a London Winter
Banging, short cycling, and a yellow pilot flame all mean your furnace is in trouble. Spot these warning signs before a London freeze arrives.
Read article
Home Comfort Tips
Why Your Air Conditioner Struggles During Humid London Summers
We are heating specialists, but your AC still matters in summer. Find out why a humid London season overwhelms an air conditioner and how service helps.
Read article
FAQs
Frequently Asked Questions
Answers to the questions London homeowners ask us most.
My furnace quit in the middle of a cold night. How fast can you get here?
No-heat calls go to the front of our list. We answer the phone around the clock in London and Middlesex County and aim to have a technician at your door the same day, because a dead furnace in a deep freeze is a safety issue, not a wait-until-morning one.
Should I repair my old furnace or replace it?
We tell you straight. If the repair is small and the furnace has years left, we fix it. If it is unsafe, badly worn, or costing you a fortune in gas, we walk you through replacement options and the efficiency you would gain. No pressure, just the numbers.
Do you check for carbon monoxide and gas safety?
Always. Every furnace service includes a check of the heat exchanger, burner combustion, and gas connections, and we look for any carbon monoxide concern. If we find a cracked heat exchanger or a yellow, sooty flame, we shut the unit down and tell you exactly what is safe and what is not.
Can you service heat pumps and gas fireplaces too?
Yes. We service and repair cold-climate heat pumps and install and maintain gas fireplaces, so the same team that looks after your furnace can handle your other heating equipment. We keep them running safely and efficiently alongside your main system.
Can you repair or replace my thermostat?
Yes. A faulty thermostat is a common reason a furnace short-cycles or won't fire. We repair and replace all brands, including programmable and smart models, and make sure they talk to your heating system correctly.
Do you handle cooling and air quality as well?
Absolutely. We are a full HVAC company, so once winter is behind us we look after central air, ductless systems, and duct cleaning. Heating is our lead, but we keep your home comfortable in July as well as January.
Are your technicians licensed and insured?
Every technician is fully licensed, insured, and trained on gas-fired and high-efficiency heating equipment. You get qualified people working on the system that keeps your family warm.
Do you offer 24/7 emergency service?
We do. Furnaces rarely fail at a convenient hour, so we take emergency calls any time, day or night, weekends and holidays included.
Do you serve areas outside of London, Ontario?
Yes. We serve London and nearby communities including St. Thomas, Strathroy, Dorchester, Komoka, and the surrounding area.
Service Area
Serving London & Surrounding Communities
We provide fast, reliable hvac service throughout London and Middlesex County. If you don't see your town listed, give us a call, chances are we cover it.