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!
Ajax · Durham Region
Ajax HVAC Services at a Fair, Guaranteed Price
A dependable system, a price that holds, and payments that fit
Shopping for HVAC in Ajax and worried the quote will grow once the crew shows up? We install and repair furnaces, air conditioners and cold-climate heat pumps at one written price for the agreed scope. Then we help you trim that price with rebates and spread it out with 0% financing.
- Guaranteed final price, with no last-minute extras on the agreed scope
- 0% interest for 3, 6 or 9 months, on approved credit
- We may beat a comparable reputable quote by up to 10%
- Heat pump rebate paperwork filed for you
Voted Best Company 2019 to 2021 · Authorized Midea, Lennox, Kepler & Rinnai dealer, plus Goodman · 20+ years
Our Brand Partners
Why the lowest HVAC quote often ends up costing more
A low number on page one can hide a lot. Some quotes skip the permit, the new venting, the condensate drain or the gas line work. Those costs show up later as change orders, often on install day, when you have no heat and little say.
Other quotes are cheap because the equipment is the wrong size. An oversized furnace or AC short cycles, wears out sooner and leaves rooms uneven. You pay for it every month on the gas and hydro bills.
Our approach for Ajax homes is simple. We size the system from a Manual J heat-loss calculation, list every part of the job in writing, and hold that price. If you have a comparable quote from a reputable company, show us. We may beat it by up to 10% where it applies.
- Model numbers, sizes and efficiency ratings on the quote
- Permits, venting, drains and electrical spelled out
- Rebate estimate and monthly payment options side by side
- Warranty terms in writing, up to 12 years parts and labour on select systems
Budget headaches our HVAC company in Ajax sorts out
Most Ajax homeowners who call us are not short on opinions. They are short on clear numbers. Here is what we hear most and how we handle it.
Two furnace quotes for the same house look nothing alike
One quote usually leaves out something the other includes, like venting, a filter cabinet or the permit. We break our price into line items so you can compare them fairly, then talk through the gaps with you.
The old AC still runs, but the repair bills keep stacking up
When an older unit needs a compressor, a coil or a refrigerant leak repair, we price the repair and a replacement next to each other. With rebates and financing included, you can see which one costs less over the next few summers.
A past contractor added extras after the job started
Our guaranteed final pricing means no last-minute extras on the agreed scope. If we find something new, like a damaged flue, we stop, show you, and nothing changes unless you say yes.
You need a new system now but can't pay for it all at once
We offer 0% interest for 3, 6 or 9 months, or open loans from 2.99% OAC. Rates are subject to lender approval, and we can show you the options before you commit.
The gas bill jumps every time a January cold snap hits
An older mid-efficiency furnace wastes a good share of its fuel up the chimney. A 96% AFUE two-stage, variable-speed furnace or a hybrid heat pump setup cuts that waste, and we show you the trade-offs in plain numbers.
You heard about heat pump rebates but don't know your amount
Most Ajax homes heat with Enbridge gas, which usually means the smaller rebate, commonly up to $2,000. Homes on electricity, oil or propane can get up to $7,500. We confirm eligibility before installation and file the pre-approval for you.
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.
From furnace installation in Ajax to AC tune-ups
Every service below comes with a written price before we start. Pick the one that matches your problem.
Furnace installation in Ajax96% to 97% AFUE Lennox and Midea furnaces, sized to your house and not a rule of thumb.Cold-climate heat pumps in AjaxRated to -30°C and eligible for the Home Renovation Savings Program when on the qualified list.AC repair in AjaxWarm air, frozen lines or a unit that won't start, with the repair cost shown up front.Furnace repair and tune-upsIgnitors, flame sensors, blower motors and yearly service that keeps your warranty valid.Heat pump paired with your furnaceLet the heat pump carry mild days and the furnace take the deep cold.Rinnai tankless water heatersEndless hot water from $3,300 installed, with 0.97 to 0.98 UEF condensing models.Emergency HVAC for Ajax homesEvenings, weekends and holidays when the heat or AC quits.
What heat pump installation in Ajax and other upgrades cost
Here are our starting prices and the ways to bring them down. Anything without a from-price gets a guaranteed quote after we see the house.
| System | Installed from | Ways to lower the cost |
|---|---|---|
| High-efficiency gas furnace (96% to 97% AFUE) | From $3,300 | 0% financing, and we may beat a comparable quote by up to 10% |
| Central cold-climate heat pump (ducted) | From $5,500 | Rebate up to $7,500 for electric, oil or propane heat, smaller for gas-heated homes |
| Hybrid system (heat pump with gas furnace backup) | Quote | Heat pump rebate where the model qualifies, plus financing |
| Ductless mini split | Quote | May qualify as a cold-climate heat pump if on NRCan's list |
| Rinnai condensing tankless | From $3,300 | 0% for 3, 6 or 9 months, OAC |
| Smart thermostat | Quote | $100 rebate where eligible |
Installed pricing depends on size and installation requirements, but whatever the job, the guaranteed quote you sign is the price you pay. Financing is 0% interest for 3, 6 or 9 months, or open loans from 2.99% OAC, subject to lender approval. Confirm rebate eligibility before installation, since program terms can change.
A few recent jobs from our crews
A sample of recent Ontario installs from our crews. Clean venting, level pads and tidy line sets are part of the price, not an upgrade.
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.
Where we work around Ajax
From the older streets near the lake to the newer subdivisions in the north end, we quote and install all over town, including:
- Pickering Village
- South Ajax
- Nottingham
- Riverside
- Central East
- Northwest Ajax
- Duffins Creek
- Applecroft
Heating and cooling in Ajax at a price that holds
Call 1-647-694-5845 or send the form. We'll put the price in writing, show you the rebates and lay out the payment options.
What Ajax 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
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
Proudly Serving Ajax, 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 Ajax, with a written, guaranteed quote before any work starts.
- ServingAjax, 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 Ajax
Other cities in Durham Region we serve
Every city gets the same licensed crews, guaranteed pricing and rebate paperwork. Pick yours for local details.
Frequently asked questions
How much does a new furnace cost in Ajax?
A high-efficiency gas furnace starts from $3,300 installed. The final number depends on size, venting and any gas or duct changes, and we give you a guaranteed quote before any work starts.
Can I finance HVAC work in Ajax with no interest?
Yes. We offer 0% interest for 3, 6 or 9 months, plus open loans from 2.99% OAC for longer terms. Rates depend on lender approval.
Will you beat another Ajax HVAC contractor's quote?
We may beat a comparable quote from a reputable company by up to 10% where it applies. Send it over and we'll check that the equipment and scope really match.
Should I repair or replace my old air conditioner?
Repair usually makes sense when the unit is fairly young and the fix is small. When an older AC needs a compressor or a coil, we price both options side by side so the cheaper long-term choice is obvious.
How much heat pump rebate can an Ajax home get?
Homes heated by electricity, oil or propane can get up to $7,500, and Enbridge gas-heated homes usually get a smaller amount, commonly up to $2,000. The heat pump must be on NRCan's qualified list and pre-approval must be in place before installation.
What does a guaranteed price mean for HVAC services in Ajax?
It means the price on your signed quote is the price you pay for that scope. If something new turns up, we explain it and nothing changes without your approval.
Page reviewed and updated October 27, 2026. Prices, rebates and program terms are checked at each update.