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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Dunnville's Trusted HVAC Experts
Expert Heating & Cooling Repair in Dunnville, ON
At Dunnville Heating & Cooling, we treat your home like our own. Serving Dunnville, Ontario and Haldimand County, we deliver honest, efficient, and dependable HVAC solutions for year-round comfort.
- 24/7 HVAC Service
- Financing Options
- 100% Satisfaction Guaranteed
- Licensed & Insured
24/7Emergency service
Licensed& fully insured
FreeNo-obligation quotes
LocalFamily-run & trusted
About Us
Your Trusted Partner for Year-Round Comfort in Dunnville
At Dunnville Heating & Cooling, we understand that a broken air conditioner or failing furnace is more than an inconvenience — it's a disruption to your life.
As a local, family-run company, we specialize in heating and cooling solutions tailored to the Dunnville, Ontario climate. From maintaining your air conditioner through a humid July to fixing your furnace in the depths of January, our team provides honest advice and technical excellence on every visit.
HeatingFurnaces, heat pumps & fireplaces
CoolingCentral air & ductless systems
Air QualityDuct cleaning & ventilation
ControlsSmart & programmable thermostats
Real local technicians, on call 24/7Serving Dunnville & Haldimand County, every day of the year
What We Do
Comprehensive Heating & Cooling Services in Dunnville
From emergency repairs to long-term comfort solutions, we provide a full range of heating and air conditioning services to keep your home running smoothly year-round.
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.
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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
Remove dust, allergens, and debris from your ductwork to improve airflow, system efficiency, and the indoor air your family breathes.
Learn moreThermostats
Smart and programmable thermostat repair and replacement for better temperature control, scheduling, and real energy savings.
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 Choose Dunnville Heating & Cooling?
We believe in transparency, respect, and quality workmanship. Here's what every customer can expect.
Transparent Consultation
We start with a thorough assessment of your heating and cooling needs, explaining your options in plain language — whether it's a simple furnace repair, a new AC, or a heat pump install.
Professional, Clean Work
Our technicians arrive on time, work efficiently, and leave your home spotless — whether installing a furnace, servicing your AC, or replacing a thermostat.
Ongoing Support
Our relationship doesn't end when the job is done. We provide repair and maintenance services to keep your system running at peak efficiency for years.
Testimonials
What Dunnville Homeowners Are Saying
We're proud to be the heating and cooling partner our neighbours trust and recommend.
“The team saved us with an emergency furnace repair in January. Professional, friendly, and they truly cared about our comfort.”
SM
Sarah M.Dunnville, ON
“Best team for HVAC! They helped us choose an energy-efficient AC system without upselling unnecessary equipment.”
DR
David R.Cayuga, ON
“Prompt, polite, and knowledgeable. They handled our heat pump installation with real pride. Highly recommend.”
JT
Jennifer T.Caledonia, ON
Ready to Improve Your Home Comfort?
No matter the make or model, our experts have the tools and experience to handle any furnace, air conditioner, heat pump, or ventilation issue — fast.
From the Blog
Latest News & Home Comfort Tips
Practical advice to help you get the most from your heating and cooling system in Dunnville's climate.
Home Comfort Tips
How Often Should You Service Your HVAC System in Dunnville, Ontario?
Dunnville's real seasons push your HVAC system hard. Here's how often you should service your furnace and AC — and why twice a year is the sweet spot.
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Home Comfort Tips
Signs Your Furnace Needs Repair Before a Dunnville Winter
Don't wait for the coldest night of the year. Here are the most common warning signs your furnace needs repair before a Dunnville winter sets in.
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Home Comfort Tips
Why Your Air Conditioner Struggles During Humid Dunnville Summers
If your AC runs all day but your home still feels sticky, humidity is likely the culprit. Here's why — and what you can do about it.
Read article
FAQs
Frequently Asked Questions
Answers to the questions Dunnville homeowners ask us most.
How quickly can I get furnace repair in Dunnville, Ontario?
Our expert technicians provide fast, reliable furnace repair in Dunnville and surrounding areas. We prioritize emergency service calls so your home heating is restored promptly — often the same day.
What types of AC repair services do you offer?
We offer comprehensive AC repair in Dunnville, including diagnostics, component replacement, and maintenance for central air conditioning and ductless mini-split systems to meet your cooling needs.
How do I know if my heat pump needs repair or replacement?
Signs like uneven heating or cooling, unusual noises, or rising energy bills may indicate your heat pump needs service. Our team provides professional repair and installation for optimal year-round comfort.
Why is duct cleaning important for my home?
Dust and allergens reduce the efficiency of your heating and cooling system. Professional duct cleaning helps your HVAC system run better and improves the indoor air quality your family breathes.
Can you repair or replace my thermostat?
Yes. We provide thermostat repair and replacement in Dunnville, including programmable and smart models, to optimize your heating and cooling performance and lower energy use.
What types of fireplaces can you install?
We install gas, electric, and wood-burning fireplaces, safely integrating them with your home heating system for warmth, ambiance, and code-compliant peace of mind.
Do you install ductless AC systems, and are they energy-efficient?
Absolutely. Our ductless AC installations provide energy-efficient cooling and heating for precise comfort without the need for ductwork.
Are your technicians licensed and experienced?
Every technician on our team is fully licensed, insured, and trained to deliver professional service using proven repair techniques.
Do you serve areas outside of Dunnville, Ontario?
Yes. We provide HVAC services throughout Dunnville and nearby communities including Cayuga, Caledonia, Hagersville, Jarvis, and across Haldimand County.
Do you offer 24/7 emergency service?
We do. Heating and cooling emergencies don't keep business hours, so neither do we — call us any time, day or night.