Heritage homes in Old Oakville
Plaster walls, little room for ducts and character worth protecting. Slim ductless heads and careful line-set routing add cooling without opening up the walls.
Oakville · Halton Region
Comfort you notice, equipment you don't
Good HVAC in Oakville should be felt, not heard. We install variable-speed furnaces, cold-climate heat pumps and whole-home humidity control in finished homes across the town, and we work carefully around your floors, walls and furniture. You get a written, guaranteed price before we touch anything.
Voted Best Company 2019 to 2021 · Authorized Midea, Lennox, Kepler & Rinnai dealer, plus Goodman · 20+ years






Big rooms, high ceilings, lots of glass and a humid lake next door. Here is what shapes our recommendations.
Heritage houses in Old Oakville, 1980s and 1990s family homes in Glen Abbey and River Oaks, and large newer detached homes.
Muggy air off Lake Ontario makes moisture control just as important as cooling.
Most homes heat with natural gas, which makes a hybrid heat pump and furnace setup an easy step.
On select systems, depending on brand, model, registration and conditions.
The right system depends on the house. These are the homeowners we work with most.
Plaster walls, little room for ducts and character worth protecting. Slim ductless heads and careful line-set routing add cooling without opening up the walls.
Open main floors, tall windows and several bedrooms upstairs. Multi-zone ductless, two-stage furnaces and properly sized heat pumps keep every level even.
Glen Abbey and River Oaks houses often run original or second-generation equipment. A planned upgrade beats an emergency call in January.
Heat pumps that keep working at -30°C, a furnace for backup if you want one, and the rebate forms done for you.
Tell us about your house and we'll recommend the right system, with a guaranteed price and your rebate estimate.
Most of these have nothing to do with the system being broken. It works, just not the way a well-kept home deserves.
A single-stage furnace paired with a standard blower motor starts at full fire and full speed every time. A two-stage, variable-speed model starts low and ramps up gently. We also check for undersized returns, which whistle no matter how good the furnace is.
Forced-air heat dries the house out. A furnace-mounted whole-home humidifier, controlled by outdoor temperature, keeps indoor humidity in a range that is kinder to wood floors, furniture and skin.
An oversized air conditioner chills the air and shuts off before it removes much moisture. An inverter heat pump or variable-speed system runs longer at low capacity, which pulls more water out of muggy lakeshore air.
Placement matters as much as the model. We choose quiet inverter equipment, set it on a level pad away from bedroom windows and patios, and isolate the line set so vibration does not carry into the walls.
Many heritage homes have no ducts upstairs, or ducts too small for cooling. Ductless or multi-zone heads deliver cooling right where you need it, with a short, tidy line-set route.
We plan access before install day, protect floors along the path to the furnace room, control dust when cutting and leave the space clean. If a ceiling has to open, we tell you in the quote, not on the day.
Noise travels through the ducts and the framing as much as through the air. We set the furnace on isolation pads, fit a flexible connector between the furnace and the plenum, and size the return so air moves slowly instead of whistling. A variable-speed blower ramps up over a minute rather than slamming on, which is the difference you notice mid-movie.
Describe the problem and we'll tell you what it usually is, what it costs to fix, and whether it's worth fixing.
Variable-speed equipment costs more than builder-grade, and we would rather show you where the starting points are than talk around it.
| Service | Typical price in Oakville |
|---|---|
| High-efficiency furnace, installed Lennox ML296V or Midea MGH96, 96% to 97% AFUE, two-stage variable-speed | From $3,300 |
| Cold-climate heat pump, installed Midea EVOX G3 or Kepler, 2 to 5 ton, rated to -30°C | From $5,500 |
| Central air conditioner, installed Lennox or Midea, sized from a heat-gain calculation | Written quote |
| Ductless mini split, one zone Midea or Kepler wall unit with outdoor unit and line set | Written quote |
| Rinnai tankless water heater, installed RX160iN or RX199iN condensing, with venting and gas line | From $3,300 |
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.
Here are some of our recent Ontario installs. Look at the straight line sets, the labelling and the clean furnace rooms, because that is the finish we bring into Oakville homes.






A premium system is only as good as the planning behind it. Here is ours.
Tell us what bothers you: noise, dry air, hot rooms or high bills. That shapes every recommendation that follows.
A Manual J heat-loss calculation, duct and static pressure checks, and a look at where equipment can go without spoiling the finishes.
Two or three options with model numbers, efficiency ratings and a guaranteed price for each. No pressure either way.
Floors protected, system commissioned, humidifier and thermostat set up, permits closed and warranty registered.
Every model here runs on a two-stage or inverter design, which is what keeps the furnace room quiet and the bedrooms steady from one hour to the next.

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

0.97 UEF, up to about 9 GPM
Rinnai warranty, extended coverage may be available

0.98 UEF, up to about 11.1 GPM
Rinnai warranty, extended coverage may be available
You have put real care into your home. The heating and cooling should match it, running quietly in the background and keeping every room steady from January to August.
Send us a few details and we will set up a visit. You get clear options and one firm price for each.

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 Oakville, 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 two-stage, variable-speed furnace is the quietest common choice. Models like the Lennox EL297V at 97% AFUE run on low stage most of the time, so they are quieter and keep temperatures steadier than a single-stage furnace.
Many homes still benefit from one in winter. Forced-air heating dries indoor air even in lakeshore towns, and a furnace-mounted humidifier keeps it in a comfortable range for skin, hardwood and furniture.
Yes, usually with ductless heads or a hybrid setup that uses any existing ducts. We plan the outdoor unit and line-set route to keep the exterior tidy, and you should check with the Town about any heritage district rules first.
Cold-climate heat pumps start from $5,500 installed, before rebates. The final figure depends on size and installation requirements, and it is locked in as a guaranteed quote before we start.
Yes, if it is sized for your home's heat loss. Lake Ontario takes the edge off Oakville winters, the Midea EVOX G3 is rated to heat down to -30°C, and a gas furnace can stay in place as backup if you prefer.
For most larger homes, yes. It spends most of its time at low output, so it is quieter, holds steadier temperatures and wrings more moisture out of humid air.
Yes. Emergency service runs evenings, weekends and holidays, so call 1-647-694-5845 and we will give you an honest arrival estimate.
Yes, in most cases. Tall windows in a tightly built house fog up when indoor humidity climbs too high, and an HRV or ERV swaps that moist indoor air for fresh outdoor air while keeping most of the heat. We balance it with the humidifier so the air stays comfortable without water running down the glass.
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.