Replaces our AC with a new heat pump in Ottawa and the whole experience was outstanding. From the first call, Dustin was incredibly responsive and communicated clearly every step of the way. He cut through all the usual sales fluff and got straight to what mattered — options, costs, timelines, and what made the most sense for our home. They addressed every concern I had, explained the details discussed my technical questions, and handled the installation quickly and professionally. The quality of the work is excellent, everything was done cleanly, and the system has been running perfectly since. Pricing was fair and transparent, and there were no surprises. It’s rare to find a company that combines speed, honesty, and solid workmanship like this. Highly recommended.
Sudbury · Greater Sudbury
Sudbury HVAC Contractor for Furnaces and Heat Pumps That Last All Winter
Dependable heat for the long Northern Ontario season
A Sudbury HVAC system gets no easy months from November to April. We keep furnaces running with repairs, tune-ups and emergency service, and we install cold-climate heat pumps with proper backup heat for homes on oil, propane or electric heat. Our TSSA-certified gas technicians and licensed refrigeration techs put every price in writing before they start.
- Emergency furnace calls evenings, weekends and holidays
- Honest repair or replace advice, with the reasons explained
- Heat pumps with backup heat for homes off natural gas
- Guaranteed quote, with no extras added on the agreed scope
Our Brand Partners
Emergency HVAC in Sudbury, and why furnaces fail in deep cold
Furnaces rarely quit on a mild day. They quit on the third night of a cold snap, when they've been running almost nonstop and every weak part is under strain. A cracked ignitor, a dirty flame sensor or a blower motor on its last legs will hold on until the load gets heavy.
Venting is the other big one up here. High-efficiency furnaces breathe through plastic pipes on the side of the house, and drifting snow or frost can block them. The pressure switch then shuts the furnace down to protect you. It's a safety feature, but it still leaves you cold.
Our TSSA-certified gas technicians take emergency calls evenings, weekends and holidays. Call and we'll tell you honestly when someone can get there, and you'll see the repair price before any work begins.
- Ignitor, flame sensor, pressure switch and inducer diagnosis
- Vent and intake clearance checked against snow depth
- Heat exchanger inspection on older furnaces
- Written repair price before we pick up a tool
Sudbury heating and cooling services
Start with the one that matches your situation. Each page lays out the options and the costs.
Furnace repair in SudburyNo heat, short cycling, noisy blowers and vent faults, priced before we start.After-hours heating callsEvenings, weekends and holidays, when the furnace stops in the cold.High-efficiency furnace replacementLennox and Midea two-stage, variable-speed furnaces from 96% AFUE.Heat pump installation in SudburyCold-climate units rated to -30°C, with backup heat planned in.Heat pump with electric backupAn all-electric ducted system for homes leaving oil or propane.Hybrid heat pump and furnaceLet the furnace cover the coldest nights while the heat pump does the rest.Fall tune-upsA yearly check that catches worn parts before January finds them.
Winter trouble Sudbury homeowners call us about
These are the problems we see most once the season turns. Every one has a cause we can find and fix.
The furnace starts, runs a few minutes, then shuts off
Short cycling often comes from a dirty flame sensor, a clogged filter tripping the high-limit switch, or a furnace that's too big for the house. We test each one, fix the cause and tell you if sizing is the real issue.
Snow keeps blocking the vent pipes outside
When drifts or frost cover the intake or exhaust, the furnace locks itself out. We check the clearances and, where the code allows, raise or reroute the pipes so they stay above the snow.
Your furnace is getting old and every January feels like a gamble
We inspect the heat exchanger, blower and controls, then give you a straight answer on repair versus replacement. If it's time, a two-stage, variable-speed furnace at 96% AFUE or higher runs quieter and burns less gas.
Oil or propane in Chelmsford or Hanmer costs too much to run
A cold-climate heat pump can take over most of the heating, with your existing furnace or an electric air handler as backup. Homes heated by oil, propane, wood or electricity can qualify for the higher rebate tier, up to $7,500.
The heat pump switches to backup heat far too early
A poorly set switchover point burns expensive backup heat when the heat pump could still do the job. We set it from your home's heat loss and your actual fuel and hydro costs.
Bedrooms at the far end of the bungalow stay chilly
Post-war bungalows often have long, leaky duct runs. We seal joints, balance the dampers and check return air before suggesting bigger equipment.
Sound familiar?
Describe the problem and we'll tell you what it usually is, what it costs to fix, and whether it's worth fixing.
Furnaces and heat pumps from our recent work
These photos come from Ontario jobs in other towns, shown so you can see how we finish an install: clean venting, level stands and tidy wiring.
Furnace installation in Sudbury and other starting prices
Starting prices for the most common jobs. Your guaranteed quote is based on your home after we've seen it.
| Service | When it fits | Starting price |
|---|---|---|
| High-efficiency gas furnace | Replacing an old or unreliable furnace | From $3,300 |
| Cold-climate heat pump | Homes on oil, propane, electric or gas heat | From $5,500 |
| Hybrid heat pump and furnace | Gas or propane homes cutting fuel use | Quote |
| Heat pump with electric air handler | All-electric homes leaving oil behind | Quote |
| Furnace repair or emergency call | No heat, short cycling, vent lockouts | Quote |
| Rinnai tankless water heater | Endless hot water and a freed-up basement corner | From $3,300 |
Installed pricing depends on size and installation requirements, and every job gets a guaranteed quote. Cold-climate heat pumps may qualify for up to $7,500 through the Home Renovation Savings Program in homes heated by electricity, oil, propane or wood, and a smaller amount in gas-heated homes. Confirm eligibility and get pre-approval before installation, since program terms can change. To spread the cost, choose 0% financing for 3, 6 or 9 months or an open loan from 2.99% OAC.
Where we work across Greater Sudbury
Our crews serve the city core and the outlying communities, and we book visits and installs at a time that works for you. That includes:
- New Sudbury
- Minnow Lake
- Lively
- Val Caron
- Hanmer
- Garson
- Chelmsford
- Azilda
- Copper Cliff
- South End
Why Ontario homes and businesses choose EHI Heating And Cooling
20+ years in Ontario homes
We've installed through more January cold snaps and July heat waves than we can count. That experience shows up in the sizing, the ductwork and the little details.
Voted Best Company 2019 to 2021
HomeStars Verified. Our reviews come from real Ontario homeowners and business owners.
Authorized Midea, Lennox, Kepler and Rinnai dealer, plus Goodman
Factory-backed equipment, factory-backed warranties, and techs trained on the gear we install. We install and service Goodman too.
Guaranteed final pricing
The number on your quote is the number on your invoice. We may also beat comparable reputable quotes by up to 10%.
Rebate paperwork handled
Pre-approval, heat-loss calculation and documentation for the Home Renovation Savings Program. You just sign.
Licensed, certified crews
TSSA-certified gas technicians, licensed refrigeration techs and ESA-licensed electrical work on every job.
Ready when you are
Call us or send the form. Quotes are free, guaranteed and come with your rebate estimate.
Furnace acting up before the next cold snap?
Get it checked now, while you still have time to choose between a repair and an upgrade.
What Sudbury homeowners can expect: our customers in their own words
Rated 4.5 on Google and voted Best Company 2019, 2020 and 2021 on HomeStars.
4.5Google rating from verified customers
Efficient Home Improvements truly went above and beyond. Our furnace failed on Christmas Eve in Ottawa, and their team stayed up late (3:00am) that night to replace it. Their responsiveness, professionalism, and dedication during the holidays were exceptional. The work was completed efficiently, and everything was explained clearly. It’s rare to find a company willing to sacrifice their own holiday time to ensure a customer’s home is warm and safe. I highly recommend Efficient Home improvements to anyone in need of reliable and compassionate service.
We had a heat pump/AC unit installed by EHI, on time, on budget, great workmanship. Julian and team were knowledgeable and courteous. Dustin communicated well and is managing our government rebate for the new efficient system. Thank you Team!
Recently got a shiny new heat pump installed. Went very well, nice unit and it works soooo quietly. These fine folks were very easy to deal with, professional and thourough. Would highly recommend.
I recently had a new furnace and tankless water heater installed by this company. Excellent service by both office and technicians , I highly recommend!
The Installers were great.. Got in and got the job done..the furnace works amazing compared to the old one !!! Need a furnace..A/C water tankless system..there your guys!!!!
Had a tankless water heater installed and couldn’t be happier. The installation was quick, professional, and the system works great — endless hot water and more efficient than my old tank. Highly recommend!
Dustin and his team were really responsive and helpful in getting us a new heat pump to replace our broken AC unit. The team went above and beyond helping us through the process and answering other questions about the house we recently moved in to. I would highly recommend Efficient Home Improvements for any of your HVAC needs.
Licensed HVAC Contractor · Serving Ontario for 20+ Years
Proudly Serving Sudbury, Ontario
EHI Heating And Cooling has kept Ontario homes and businesses comfortable for more than 20 years. Our licensed crews come to your home or business anywhere in Sudbury, with a written, guaranteed quote before any work starts.
- ServingSudbury, Ontario
- Phone1-647-694-5845
- Emailefficienthomecomfort@gmail.com
Business Hours
- Monday8:00 AM to 8:00 PM
- Tuesday8:00 AM to 8:00 PM
- Wednesday8:00 AM to 8:00 PM
- Thursday8:00 AM to 8:00 PM
- Friday8:00 AM to 8:00 PM
- Saturday8:00 AM to 8:00 PM
- Sunday10:00 AM to 5:00 PM
Emergency service available evenings, weekends and holidays.
We also serve communities near Sudbury
Other cities in Northern Ontario we serve
Every city gets the same licensed crews, guaranteed pricing and rebate paperwork. Pick yours for local details.
Frequently asked questions
Do you offer emergency furnace repair in Sudbury?
Yes. We take emergency heating calls in Sudbury evenings, weekends and holidays. Call 1-647-694-5845 and we'll tell you when a technician can reach you.
How often should a Sudbury furnace be serviced?
Book a furnace tune-up every year, and aim for September or October, before the furnace starts working hard. A tune-up catches worn ignitors, dirty flame sensors and blocked vents before they leave you without heat.
What backup heat works with a heat pump in Sudbury?
The two common options are your existing gas or propane furnace in a hybrid setup, or an electric air handler with built-in heat strips. We pick based on your fuel, your ductwork and your hydro costs.
Can a heat pump work in a Sudbury home with no natural gas?
Yes. A cold-climate heat pump rated to -30°C, paired with electric backup heat, can heat a home off the gas line through a Sudbury winter. Homes heated by oil, propane, wood or electricity may qualify for up to $7,500 in rebates.
Should I repair my old furnace or replace it?
Repair usually makes sense when the furnace is younger and the part is minor. When the heat exchanger is cracked or repairs keep stacking up on an older unit, replacement is usually the better spend, and we'll show you both numbers.
Is EHI a Sudbury HVAC contractor?
Our office is in Stouffville, and our licensed crews serve Sudbury, Lively, Val Caron and the surrounding communities. We schedule assessments and installs with you directly.
Page reviewed and updated October 27, 2026. Prices, rebates and program terms are checked at each update.