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Emergency HVAC Repair in Oshawa

When your heating or cooling system fails unexpectedly, it’s more than an inconvenience—it can quickly become a safety issue.
Whether it’s a furnace breaking down during a cold snap or an air conditioner failing in extreme heat, fast and reliable service matters.
That’s where Twintech Heating & Cooling comes in.
We provide dependable emergency HVAC repair in the Durham Region and Toronto, helping homeowners restore comfort when it matters most.
What Counts as an HVAC Emergency?
Not every HVAC issue requires immediate service, but some situations shouldn’t wait.
Common HVAC emergencies include:
No heat during winter
Furnace or boiler failure in cold weather
No air conditioning during a heat wave
Burning smells or unusual noises from HVAC equipment
Systems repeatedly shutting down or failing to start
Suspected gas, electrical, or carbon monoxide issues
In these situations, delaying repairs can risk damage to your home—or your health.
Why Fast Emergency HVAC Repair Matters
In the Durham Region and Toronto, temperatures can swing dramatically throughout the year.
HVAC failures during extreme weather can lead to:
Unsafe indoor temperatures
Frozen or burst pipes
Increased humidity or moisture damage
Disrupted sleep and daily routines
Quick response isn’t just about comfort—it’s about protecting your home and family.
Twintech’s Emergency HVAC Repair Services
Twintech Heating & Cooling offers prompt, professional emergency service for a wide range of HVAC systems, including:
Furnaces
Boilers
Heat pumps
Air conditioners
Ductless mini-split systems
Our technicians are trained to diagnose problems quickly and provide clear, honest recommendations—so you know exactly what’s going on and how it can be fixed.
Local Service You Can Rely On
Because Twintech is a local HVAC company, we understand the specific challenges homeowners face—from older heating systems to newer energy-efficient upgrades.
Our local focus means:
Faster response times
Familiarity with regional weather conditions
Experience with homes of all ages and layouts
Service that’s tailored to local needs, not one-size-fits-all solutions
When you call Twintech, you’re working with a team that lives and works in the same communities you do.
Emergency Furnace Repair During Winter
A furnace breakdown in winter is one of the most urgent HVAC emergencies.
If your furnace stops working, indoor temperatures can drop quickly—especially overnight.
Twintech provides emergency furnace repair to:
Restore heat as quickly as possible
Identify safety concerns like cracked heat exchangers
Prevent further damage to the system
Help protect plumbing from freezing
If replacement is the only safe option, we’ll explain your choices clearly and help you make the best decision for your home.
Emergency Cooling Repairs in Extreme Heat
Summer heat waves can be just as dangerous as winter cold.
When your air conditioner or heat pump fails during high temperatures, indoor conditions can become uncomfortable or unsafe.
Our emergency cooling services help:
Restore airflow and cooling
Diagnose electrical or compressor issues
Address refrigerant-related problems
Improve system reliability during peak demand
We work efficiently to get your system running again as soon as possible.
What to Expect When You Call Twintech
When you contact Twintech for emergency HVAC repair, you can expect:
Clear communication from the start
Prompt dispatch of a qualified technician
Thorough system inspection and diagnosis
Honest recommendations without pressure
Professional repairs focused on safety and reliability
Our goal is to reduce stress during an already frustrating situation.
Preventing Future HVAC Emergencies
While not all breakdowns can be avoided, regular maintenance greatly reduces the risk of unexpected failures.
Preventative HVAC maintenance helps:
Catch small issues before they become emergencies
Improve system efficiency and performance
Extend equipment lifespan
Reduce the likelihood of mid-season breakdowns
Twintech offers maintenance solutions designed to keep your system dependable year-round.
Final Thoughts
HVAC emergencies don’t wait for a convenient time—and neither should your repair service.
When heating or cooling problems strike, homeowners in the Durham Region and Toronto need a company they can trust to respond quickly and professionally.
Twintech Heating & Cooling is proud to provide reliable emergency HVAC repair when comfort, safety, and peace of mind are on the line.
If your system fails unexpectedly, expert help is just a call away.
Had furnace and air conditioning unit put in. They did an excellent job great price and everything clean as can be, I was very pleased
All winter I have had an issue with very little heat reaching the 2nd floor of our home. After this past winter ended I decided to look into this. I found Twintech Heating and Cooling on line and started the process. After explaining my problem I had a call form Twintech and the tech came out and walked through things with me. The problem was the heating vent pipe had been dropped down in size by someone years ago causing little heat reaching the 2nd floor. Further into checking out the older furnace and AC they found a few things not properly installed by the last install of the old furnace and also that the AC was on it's last legs. I asked for a quote and waited a few days and we decided to go ahead with Twintech. They called a few days before to set up an installation time and date. The day of the install the guys were a half hour early which was a plus. The day of the install was great, the guys worked away removing the old furnace and AC.After which they installed the new furnace and AC. After they cleaned up the basement with all their tools and scrap metal etc. they came back inside to walk thru what they did. They also tested both the furnace and cooling systems to make sure everything worked and I the customer was happy. I now have heat on the 2nd floor for next winter. The guys from Twin tech were very professional. Their work habits and knowledge of the job was excellent. Their workmanship was just excellent, it was just up there with my standards as a homeowner. I am very pleased to have chosen Twintech for my new furnace and AC.. If I had to rate this experience with Twintech this company is a 10 in my books.Product,workmanship and customer care says it all.
I called Twintech during the Covid 19 crisis because our furnace was broken and it was still very cold during the nights. Dave answered all of my questions by phone but wanted to come have a look but only if our family felt comfortable having someone visit during the uncertainty surrounding the pandemic and was able to attend that very same affternoon.
He was very courteous and informative but most importantly he respected his and our safety by wearing medical gloves in our home and maintaining proper physical distancing. He reviewed the various options of the products that suited our needs going over not only price but quality of workmanship, warrantees and where the product was manufactured which were all important factors in making such a large purchase. You could tell that Dave had been in this industry for a very long time.
The installation was done by a fine young gentleman the very next day and we now have a toasty warm home to ride out this crisis in while humming along at 96% efficiency!
I would recommend this very professional, small family business for anyone in need of HVAC equipment or maintenance.
My special thanks to Twintech teams! They had replaced my furnace and A/C, and installed a new humidifier for me 2 weeks ago. Dave, the sales manager, not only provided me with an honest quote on the best HVAC products with best quality and warranties, he also arranged portable heaters for me and sent supporting docs to energy company for energy audit. Above and beyond service!
Greg, Grant, Mitch had worked tirelessly and professionally to perform the HVAC installation. They worked with professional tools, and performed proper measurement readings after installation. They are very patient with all my questions, and very pleasant to communicate.
Great work guys! This company sure knows their products and they stand behind their services. My home comfort level has improved! I am glad that I can support an ethical and honest local family business.
Professional, flexible on price and delivered on time...well done. All you can ask for when getting a new furnace.
The work was done quickly and professionally. Workers were really polite and easy to work with.
Product works great!
Furnace broke down on a Wednesday, shopped around for prices and Friday Twintechs name came up from a referral from my wife's work. Called Dave 11 am, he came over around 1 pm. Gave me a very good price, I accepted. The guys were there two hours later to take the old furnace out and install the new one. All finished by 6:30pm. Finally heat.
They were very pleasant and helpful. As a result we are doing our A/C later this year with this company.
After some extensive research, we settled on Twintech for our new furnace. The service - from Dave's initial visit - through to the installation was absolutely fantastic.
Dave was super-patient with our many questions, did not try to "up-sell" us into buying things we don't need, knowledgeable, friendly and all-around an excellent Advisor.
I've forgotten the names of the installers but they were superb as well. They showed up on-time, did all the work with no mess or intrusion, removed the old furnace and installed the new one in one day; all with no impacts to our day-to-day life.
I cannot recommend Twintech enough, especially over any of 'bigger guys' who tried to sell us a bunch of thing we don't need. Twintech were fantastic and my wife and I are very pleased with our purchase.
From the minute I met Dave and discussed my new furnace needs I knew I was in good hands. He was patient, knowledgeable and very professional through the quotation process.
Grant and Greg did an outstanding job on the install. They did a great job of explaining the defects with my old furnace. The quality of the installation was excellent and the attention to detail was on another level. The old adage You get what you pay for couldnt be more true as I feel I received great value, skilled expertise and high quality customer service. I highly recommend Twintech for all your heating and cooling needs.
Glad to have found a not-too-big local firm that provided the needed expertise, quality workmanship, and competitive pricing as well. In and out in one day, removed the old units, did a nice job installing all of the new units, and left no debris. Even have a service contract that far outshined the big company offerings. Would definitely recommend them.
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We are very happy to recommend this company to everyone. Our furnace broke down on Sunday morning. We phoned them and before noon Grant the owner showed up. He worked on the furnace for about a hour not wanting to give up to fix the problem. The furnace was 17 years old. I was the one talking about replacing it. End result was the next day it was all done. On the Sunday Bob came over with heaters to warm up the house. We decided to replace the water heater at the same time. Thanks Grant for the excellent work. Thumbs up.
Right on time. Explained how to work the HRV in a different way so the house would not be so dry. Changed my whole house water filter for me as well. Friendly, helpful, caring service!
Very pleased with the professional service that TwinTech Heating and Cooling provided in replacing my furnace. I got several quotes from different service providers. Their price was excellent and they explained the features very well. We are very glad we went with TwinTech and highly recommend their services.
We were new homeowners in need of a second opinion. TwinTech Heating & Cooling were Amazing and professional. Very knowledgeable and great service all around. Recommend to anyone looking for honest and reliable services. Treated with respect and care. Thank you Greg, Mitch and Bob!
TwinTech is an excellent and honest company! I called them for a second opinion after being told by another company that I needed to replace my furnace. Turns out this was not the case at all! I did not need a new furnace. TwinTech did not push to make an unnecessary sale and saved me from a huge expense. Bob and Mitch were extremely professional and above all honest! I definitely recommend TwinTech!
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