Families in newer subdivisions
The builder-grade furnace is getting noisy and the AC struggles in July. We replace both with quieter, more efficient equipment and give you one price for the pair.
Alliston · Angus · New Tecumseth
Straight prices for busy households
When the furnace or AC quits, HVAC in Alliston shouldn't turn into a week of phone calls and mystery quotes. We replace and repair furnaces and air conditioners for families in Alliston, Angus and across New Tecumseth, add heat pumps where they make sense, and put one guaranteed price in writing. Bad timing? Interest-free payments over 3, 6 or 9 months (OAC) take the sting out.
Voted Best Company 2019 to 2021 · Authorized Midea, Lennox, Kepler & Rinnai dealer, plus Goodman · 20+ years






New Tecumseth is a mix of growing subdivisions, older village homes and farms. Here's what that means for your heating and cooling.
Newer builds in Alliston and Angus, older houses in Beeton and Tottenham, and farm properties out on the concessions.
Many subdivision homes still run the furnace and AC the builder put in. Those basic single-stage units tend to wear out around the same time across a street.
Alectra Utilities supplies hydro, and Enbridge Gas serves the towns. Farm properties off the gas line often heat with propane or oil.
Nothing slows the wind between Alliston and Angus. Exposed homes lose heat faster, so we size with that in mind.
Different households, same goal: a system that works and a price that makes sense.
The builder-grade furnace is getting noisy and the AC struggles in July. We replace both with quieter, more efficient equipment and give you one price for the pair.
You need heat now, not a lecture. We show the repair cost next to the replacement cost and let you pick, with financing if it helps.
Book a visit any day of the week, from 8 in the morning to 8 at night Monday to Saturday, or 10 to 5 on Sunday.
Out on the concessions, a heat pump can cut propane use sharply, and propane homes can claim up to $7,500 in rebates.
Tell us about your house and we'll recommend the right system, with a guaranteed price and your rebate estimate.
Not every old furnace needs replacing. These are the signs that usually mean it does, and the ones a repair can fix.
Builder furnaces are usually single-stage, so every start is a full-power roar. A newer two-stage model spends most of its time on its low setting, which means fewer noisy starts, more even rooms and a smaller gas bill.
Replacing both at once usually costs less than two separate visits and gets you a matched system. If the AC is near the end too, a heat pump can take its place and help with heating as well.
Our quotes list the parts and labour for the agreed scope, and that number holds. If we find something new, we explain it and price it before touching it.
That's usually airflow, not the equipment. We check the duct sizes, returns and dampers and balance the system before recommending anything bigger.
Pair a cold-climate heat pump with the propane furnace you already have. You'll call the propane truck far less often, and the furnace only wakes up when it's truly cold.
Our emergency line runs evenings, weekends and holidays. If it has to be replaced, interest-free terms or an open loan from 2.99% OAC keep the new furnace from wrecking the month's budget.
Open farm country between Alliston and Angus piles snow against whatever faces the wind. A heat pump that sits in a drift can't breathe, and it burns time and power in defrost. We mount the new unit on a raised stand on the sheltered side of the house, clear of the roof edge and the snowblower's path, and leave room for defrost water to drain away before it freezes.
Describe the problem and we'll tell you what it usually is, what it costs to fix, and whether it's worth fixing.
Fair pricing starts with showing the numbers before anyone asks. These are our starting points, and the figure on your signed quote is the figure on the invoice.
| Service | Typical price in Alliston |
|---|---|
| High-efficiency furnace, installed Lennox ML296V or Midea MGH96, 96% to 97% AFUE, two-stage variable-speed | From $3,300 |
| Central air conditioner, installed Lennox or Midea, sized from a heat-gain calculation | Written quote |
| Cold-climate heat pump, installed Midea EVOX G3 or Kepler, 2 to 5 ton, rated to -30°C | From $5,500 |
| Furnace repair Diagnostic visit plus common parts such as ignitors, flame sensors and capacitors | Quote after diagnosis |
| AC repair Diagnostic visit plus common parts such as capacitors, contactors and refrigerant leak repair | Quote after diagnosis |
Installed pricing depends on size and installation requirements, and every job gets a written, guaranteed quote. Qualifying cold-climate heat pumps can bring back up to $7,500 through the Home Renovation Savings Program, and financing runs 0% for 3, 6 or 9 months on approved credit.
Recent jobs from other Ontario towns, shown so you can see the finish. Your home in Angus or Beeton gets the same clean work.






Four steps and a number you can plan around.
Tell us what's not working, how old it is and roughly how big the house is.
A technician runs a heat-loss calculation and checks ducts, gas line and electrical, so the new system is the right size.
You see good, better and repair-only choices where they make sense, plus financing and any rebate you qualify for.
Our licensed crew installs, tests and cleans up, then registers your warranty and shows you the thermostat.
Dependable comes first on this list. Two-stage furnaces with 20-year heat exchanger warranties and cold-climate heat pumps with up to 12 years parts and labour on select systems.

96% AFUE, two-stage, variable-speed blower, 45,000 to 110,000 BTU
20-year limited heat exchanger warranty

97% AFUE, two-stage, variable-speed blower
20-year limited heat exchanger warranty
96.5% AFUE, two-stage, variable-speed, 60,000 to 120,000 BTU
Registered warranty, up to 12 years parts and labour on select systems
Up to 96% AFUE, two-stage, variable-speed ECM blower, 40,000 to 120,000 BTU/h input
10-year parts and unit replacement limited warranties when registered online

2 to 5 ton, inverter, R-454B, ENERGY STAR cold climate, rated to -30°C
Up to 12 years parts and labour on select systems

1.5 to 5 ton, rated to -30°C, quiet operation
Registered warranty

18,000 to 60,000 BTU outdoor units, wall-mounted heads
Registered warranty
A new furnace rarely arrives at a convenient time, so here's how the payment side works before you need it.
Rates are subject to lender approval, and we'll show you the monthly figure for each option on the same page as the cash price, so a household in Angus or Tottenham can compare them at the kitchen table without a calculator.

Send us the basics and we'll come back with a price in writing. Holding a quote from another reputable company for the same kind of work? Send it over, and where it applies we may undercut it by as much as 10%.
Alliston, Angus, Beeton, Tottenham and the farmland around them are all in our regular area, served from our Stouffville office.

Rated 4.5 on Google and voted Best Company 2019, 2020 and 2021 on HomeStars.
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!
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.
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.
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.
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
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 Alliston, with a written, guaranteed quote before any work starts.
Emergency service available evenings, weekends and holidays.
Every city gets the same licensed crews, guaranteed pricing and rebate paperwork. Pick yours for local details.
A high-efficiency gas furnace in Alliston starts from $3,300 installed. The final price depends on the size of the home and the installation requirements, and we lock it in with a guaranteed quote.
If both are about the same age, usually yes. One install visit costs less than two, and the equipment is matched to work together.
Yes. Alliston homeowners can pick an interest-free plan over 3, 6 or 9 months or an open loan starting at 2.99%, subject to credit approval.
We do both. If a capacitor or a refrigerant leak is the problem, our licensed refrigeration techs fix it, and we only suggest a new unit when the repair doesn't add up.
Often, yes, especially when the AC needs replacing anyway. A heat pump cools like an AC and also heats through much of the winter, with your gas furnace as backup.
Yes. All of New Tecumseth is in our area, Beeton, Tottenham, Everett and Loretto included, and you choose the visit date.
Page reviewed and updated October 27, 2026. Prices, rebates and program terms are checked at each update.
Home or business, tell us what's going on with your heating, cooling or hot water. We'll size it right, price it once, and show you every rebate you qualify for.