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HVAC Company in London, ON
HVAC Company in London costs $150–$500 on average (2026). Serving 422,324 residents in homes built around 1975, with 0.62% homeownership.
Quick Answer
Full-service HVAC companies in London Ontario provide integrated heating and cooling for $8,000 to $15,000 for standard system replacement. London's Zone 5A climate with 4,200 heating degree days and humid summers demands year-round performance. Annual maintenance at $150 to $350 covers both systems. Engage companies during shoulder seasons in September or April for best pricing.
Data: GetAHomePro contractor quotes (Q1 2026), Bureau of Labor Statistics regional wage data.
HVAC Company in London: What You Need to Know
Full-service HVAC companies in London serve a market defined by extreme seasonal demands. The city's Zone 5A climate pushes both heating and cooling to their limits — 4,200 heating degree days in winter followed by humid summers exceeding 30 degrees. This year-round demand supports a robust HVAC industry where the best companies offer integrated heating, cooling, ventilation, and indoor air quality services.
London's diverse housing stock demands broad capabilities. Heritage homes in Old North and Wortley Village need specialists who understand gravity-fed ductwork conversion. Byron and Westmount homes from the 1970s through 1980s represent the largest segment — aging equipment on adequate ductwork benefiting from systematic upgrades. North-end growth in Masonville, Stoney Creek, and Sunningdale features new construction where builder-grade systems reach their first replacement cycle.
Western University's research facilities and London Health Sciences Centre create a knowledge base influencing the residential market. London homeowners are increasingly informed about indoor air quality, humidity control, and energy efficiency — driving demand for ERV installations, whole-home humidification, and smart thermostat integration.
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What HVAC Company Costs in London
Moderate SeasonAverage price range in CAD for the London CMA area, 2026.
Budget$150
Average$325
Premium$500
Most London homeowners pay
$150 – $500
Source: HomeGuide 2025. Prices reflect the London CMA metro area. Last updated 2026.
Estimate
Costs last verified: 2026Sources: GetAHomePro contractor network, Bureau of Labor Statistics regional wage data, municipal permit records (2026)
HVAC Company Demand by Month
Typical demand patterns for hvac company in London, ON
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Peak demand months for hvac company in London: June–August and December–February. Book during March–May and September–November for potential savings of 10–20%.
How It Works
1
Tell Us About Your System
AC repair, furnace issue, or new installation — describe what you need
2
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Certified HVAC technicians in London compete for your business
3
Schedule Service
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HVAC Company Video Guide
Watch this helpful video about hvac company before hiring a contractor in London.
Top HVAC Company Contractors in London
Verified ratings from Google Business Profile.
Bow Home Comfort Systems - London ON
★4.6(40)
662 Lauderdale Ave, London, ON N5X 1M7, Canada
Reviews for HVAC Company in London
4.6/ 5
Based on 40 Google reviews across 1 local hvac company contractors.
Get matched with a top-rated pro — request a free quote!
Hvac Licensing in Ontario
Ontario requires licensing for hvac contractors
License type: Refrigeration and AC Mechanic (313A)
Must hold 313A Certificate of Qualification. Apprenticeship + exam. TSSA registration for gas work.
Verify contractor licenseWhy Hiring a Licensed Hvac Contractor Matters in London, ON
When hiring a hvac contractor in London, licensing is your first line of protection. Ontario (ON) requires hvac contractors to hold a valid state license before performing work. This means the contractor has met minimum training, experience, and insurance requirements set by the state. In the London area, always ask for the license number upfront — licensed pros carry liability insurance that covers property damage and injuries on the job, they must follow current building codes, and you have legal recourse through the Ontario licensing board if work is substandard.
Ask for EPA 608 certification (this is a federal requirement, not optional) and whether they are NATE-certified. Check if they perform a Manual J load calculation before recommending system size — contractors who skip this step often sell oversized systems.
Verify Ontario hvac contractor licenses onlineHvac Contractor Certifications to Look For in London
- EPA Section 608 certification (required by federal law for handling refrigerants)
- NATE (North American Technician Excellence) certification for system-specific expertise
- State HVAC contractor license or mechanical contractor license
- R-410A safety certification for modern refrigerant systems
Insurance Requirements for London Hvac Contractors
HVAC contractors should carry general liability insurance ($1,000,000 recommended), workers’ compensation, and completed operations coverage. Refrigerant handling and high-voltage electrical work present unique liability risks.
Risks of Unlicensed Hvac Contractors in Ontario
Unlicensed HVAC work commonly results in improperly sized systems that waste energy and fail prematurely. Incorrect refrigerant charging voids manufacturer warranties. Venting errors for gas furnaces can cause carbon monoxide leaks, which are a leading cause of accidental poisoning deaths in homes.
What Can Go Wrong With Unqualified Hvac Contractors in London
An improperly installed AC system loses 15-25% efficiency, costing hundreds of dollars per year in wasted energy. Incorrect ductwork sizing creates hot/cold spots and excessive noise. Improper gas furnace installation is a fire and carbon monoxide hazard. Refrigerant leaks from unlicensed work harm the environment and carry EPA fines up to $44,539 per day.
What to Verify Before Hiring a Hvac Contractor in London
- Insurance & bonding: Request a certificate of insurance (COI) showing general liability coverage of at least $500,000. HVAC contractors should carry general liability insurance ($1,000,000 recommended), workers’ compensation, and completed operations coverage. A surety bond adds another layer of financial protection if the contractor fails to complete the job.
- References & reviews: Ask for 3 recent references from hvac company jobs similar to yours in the London area. Cross-check with online reviews — look for consistent patterns, not just the star rating.
- Written contract & warranty: Get everything in writing — scope of work, timeline, payment schedule, and warranty terms. Never pay more than 10-15% upfront for a deposit. A reputable hvac contractor in London will not pressure you for large upfront payments.
What Affects HVAC Company Costs in London
Full HVAC system replacement in London — furnace plus AC — ranges from $8,000 to $15,000 for standard configurations and $12,000 to $22,000 for premium variable-speed systems. Annual maintenance plans cost $150 to $350 for combined coverage. Ductwork replacement in heritage homes adds $3,000 to $8,000. Heat pump installations run $5,000 to $12,000. City of London permits for complete HVAC installations run $200 to $450 with mandatory TSSA gas inspection.
Seasonal Tips for London Homeowners
Engage HVAC companies during shoulder seasons — September through October or April through May — when demand is low and pricing competitive. Complete system replacements are best timed for September when summer work has finished and heating season has not started. Annual maintenance should follow dual scheduling: furnace in September, AC in April. Avoid major HVAC decisions during January or July emergencies.
Expert Tip
When evaluating London HVAC companies, ask for a manual J heat load calculation rather than rules of thumb. The difference between properly sized and oversized equipment is significant in London's climate — oversized systems cycle more frequently, wear faster, dehumidify poorly in summer, and cost more to operate. Any company that quotes size without measuring actual heat loss is cutting corners.
London supports a competitive HVAC market with firms ranging from large operations with 15-plus technicians to specialized boutique companies. The dual-season demand creates stable year-round employment attracting skilled technicians. Companies offering integrated design-build for heritage home retrofits command premium pricing but deliver solutions addressing unique challenges of London's older housing stock.
HVAC Company Market in London
With 422,324 residents, London is a mid-size market for hvac company services.
There are approximately 1 licensed hvac company professionals serving London’s 422,324 residents.
With a median home build year of 1975, many homes in London are 51+ years old, meaning many HVAC systems may be nearing end of life. For properties of this age, older HVAC systems may lack energy efficiency.
0.62% of London residents are homeowners, with a mix of rental and owner-occupied properties needing hvac company services.
Summer temperatures average 21.0°C in London, making reliable air conditioning essential.
With 130 freezing days annually, London homeowners should plan accordingly. Heating systems work harder during extended freeze periods, making regular maintenance critical.
Part of the London CMA metropolitan area, London benefits from competitive pricing among hvac company providers.
London hvac company costs are 1% above the Ontario state average. Prices are closely aligned with regional norms.
Sources: U.S. Census Bureau (population, homeownership), NOAA (climate data), GetAHomePro contractor database (2026).
Best Time for HVAC Company in London
Schedule AC maintenance in early spring (March–April) before the summer rush. Furnace inspections are best done in early fall (September–October).
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Read moreHVAC Company in London — FAQs
Common questions London homeowners ask about hvac company.
How much does a full HVAC system cost in London Ontario?
Complete HVAC replacement in London — furnace plus AC — costs $8,000 to $15,000 for standard configurations and $12,000 to $22,000 for premium variable-speed systems with air quality components. Annual maintenance plans covering both systems cost $150 to $350 per year.
Should London homeowners consider heat pumps?
Heat pumps are increasingly viable though London's cold winters mean a hybrid system — heat pump with gas furnace backup — is practical. Full electric heat pumps struggle below minus 15 which London reaches regularly. Newer cold-climate models are improving this threshold steadily.
What should I look for in a London HVAC company?
Look for TSSA certification, proper licensing, and willingness to perform manual J heat load calculations. Ask for references from homes similar to yours in age and style. Companies offering annual maintenance with priority emergency service provide the best long-term value in London's climate.
People Also Ask
Related questions about hvac company in London.
Do I need a licensed hvac contractor in London, Ontario?
Yes. Ontario requires hvac contractors to be properly licensed and insured. Contractors must be registered with the Technical Standards and Safety Authority (TSSA). Always verify your contractor carries general liability insurance and Workplace Safety and Insurance Board (WSIB) coverage. You can check credentials through the Ontario government’s contractor verification portal. Hiring unlicensed contractors can void your home insurance and leave you liable for workplace injuries.
How much does hvac company cost in London compared to other Ontario cities?
HVAC Company costs in London vary based on local cost of living, contractor availability, and project scope. GTA cities like Toronto and Mississauga tend to be 10-20% higher than smaller Ontario cities. Northern Ontario cities may have higher travel surcharges. GetAHomePro tracks real pricing data across 92 Ontario cities so you can compare costs before hiring. All prices shown are in Canadian dollars (CAD) and include HST estimates.
How does Ontario weather affect hvac company scheduling?
Ontario’s climate significantly impacts hvac company timing. Winters (December–March) with temperatures dropping to -20°C or below can delay outdoor work and increase emergency service demand. Spring thaw (March–April) often reveals winter damage. Summer (June–August) is peak season with longer wait times. Fall is ideal for preventive maintenance before winter. Plan seasonal hvac company work 3-4 weeks ahead for best availability and pricing.
What permits do I need for hvac company in London?
Permit requirements in London depend on project scope. Minor repairs rarely need permits, but major hvac company work—especially involving structural changes, electrical, plumbing, or gas systems—typically requires a building permit from London’s municipal building department. Your contractor should handle the permit application. Ontario Building Code compliance is mandatory. Unpermitted work can create serious problems when selling your home and may not be covered by insurance.
How do I verify an Ontario hvac contractor’s credentials?
To verify a hvac contractor in Ontario: (1) Ask for their license/registration number and check it against the relevant provincial authority (TSSA). (2) Confirm WSIB coverage—request their clearance certificate. (3) Verify general liability insurance (minimum $2M recommended). (4) Check Google reviews and ask for 3 recent local references. (5) Get at least 3 written quotes in CAD with detailed scope of work. GetAHomePro pre-screens contractors across all 92 Ontario cities we serve.
Trending Questions
Popular searches about hvac company in London.
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For hvac company in London, we recommend comparing quotes from multiple licensed contractors to find the best fit for your project. Check reviews, verify credentials, and get detailed written estimates before hiring.
can an old furnace be repaired?
For hvac company in London, we recommend comparing quotes from multiple licensed contractors to find the best fit for your project. Check reviews, verify credentials, and get detailed written estimates before hiring.
how many hours to install a furnace?
For hvac company in London, we recommend comparing quotes from multiple licensed contractors to find the best fit for your project. Check reviews, verify credentials, and get detailed written estimates before hiring.
Community Questions
Real questions from London homeowners about hvac company.
I've got a frozen AC unit in my Byron home; what’s a fair price for an emergency diagnostic visit today?
Most reputable London HVAC companies charge a flat-rate diagnostic fee between $150 and $250 CAD, plus 13% HST. If they need to add refrigerant or clear a drain line, the total repair cost usually climbs into the $300–$500 range depending on the complexity.
Do I actually need a licensed professional to swap out my thermostat in Old South, or can I handle this myself?
You can generally replace a standard low-voltage thermostat yourself, but if you’re dealing with high-voltage wiring, you must follow ESA guidelines to ensure safety. If you’re at all unsure, a professional service call to verify the wiring usually costs around $150–$200, which is worth it to avoid damaging your furnace control board.
How long should I expect to wait for a technician to arrive during one of our typical London heatwaves?
During peak summer heatwaves, HVAC companies in London often face high demand, so non-emergency bookings might be pushed back 48 to 72 hours. If your system is down entirely, most local firms prioritize 'no-cooling' calls, though expect to pay a premium diagnostic rate of $200–$300 for after-hours or priority dispatch.
Are local HVAC techs in London required to hold specific credentials to work on my gas furnace?
Yes, anyone working on your gas furnace in Ontario must be a TSSA-certified Gas Technician (G2 or G3). When they arrive at your home, don't hesitate to ask to see their TSSA registration card to ensure they are legally permitted to work on fuel-fired equipment.
My furnace pilot light keeps going out—is this something a standard maintenance visit covers, or is it a separate repair cost?
A standard annual maintenance tune-up typically costs $150–$250 CAD plus HST and focuses on cleaning and safety checks, but it doesn't always cover the parts required for a thermocouple replacement. If a repair is needed to get the pilot to stay lit, your total bill will likely fall in the $250–$500 range, factoring in the specialized labor and the component cost.
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Cost data sourced from Bureau of Labor Statistics metro area statistics and industry cost guides. Contractor ratings from Google Business Profile. Licensing information from Ontario state licensing board. Last updated: March 5, 2026.