Air conditioner installation & replacement in London, Ontario
Stay cool. Even when summer heats up.
Donaldson Home Services installs and replaces central air conditioners for homes in London, Ontario and surrounding communities. We measure your home, recommend a properly sized system and give you a free in-home estimate.
Is it time to replace your air conditioner?
Your air conditioner doesn’t have to stop working completely before it’s time to consider replacement. If it’s getting older, struggling to cool your home, or becoming increasingly expensive to repair, replacing it before a breakdown may save you from being without AC during the hottest part of summer.
Planning ahead? Testing your AC before you rely on it every day gives you time to address problems or plan a replacement before peak summer demand.
Reach out today!
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Cool comfort starts with the right installation
A new air conditioner performs best when it’s properly matched to your home. Donaldson takes the time to inspect and measure your space, recommend appropriately sized cooling equipment, and install your new system properly and to code. With Donaldson, you can expect:
Every installation comes with honest recommendations and quality workmanship, and qualifying systems add True Care protection. AC installation is one of our air conditioning services: keep your new system running with annual AC maintenance, or compare heat pumps and ductless mini-splits. We install air conditioners in London and surrounding communities.
What to expect
Replacing your air conditioner should be straightforward. Here’s what you can expect from your first conversation to your completed AC installation.
Step one
Request a free estimate
Call us, fill out the form, text us, or schedule an appointment online, whatever’s easiest. We’ll ask a few questions about your home, current cooling system, and any comfort concerns, then arrange a time for your free in-home estimate.
Step two
Home assessment
We assess your home and existing cooling system, including factors such as your space, ductwork, insulation, and current equipment. This helps us determine the right size air conditioner for your home rather than relying on a guess.
Step three
Recommend
We’ll walk you through suitable AC options, efficiency ratings, features, and pricing. You’ll get clear recommendations based on your home and comfort needs, without pressure to choose equipment you don’t need.
Step four
Install
Our experienced technicians install your new air conditioner according to manufacturer requirements and applicable codes. We’ll remove the old equipment, complete the installation, test the system, clean the work area, and show you how your new AC operates before we leave.
We install trusted air conditioner brands
We install high-quality air conditioners from trusted manufacturers including Trane, Lennox, Goodman, Continental, RunTru, and GE. Rather than recommending one brand, we’ll help you choose the right system based on your home’s size, comfort needs, energy goals, and budget.
True Care protection for your new AC
A new air conditioner is an investment in your home’s comfort. On qualifying new furnaces and air conditioners, Donaldson’s True Care program provides long-term protection and added benefits so you can enjoy your new AC with greater peace of mind.
Why homeowners choose Donaldson
Honest advice, expert craftsmanship and a commitment to treating every home like our own, backed by 4.9 stars from 3,000+ Google reviews.
Local and family-owned
We’re not a franchise. Donaldson has been owned and run by Jamie and Anna Donaldson since 2013, and our reputation matters to us personally.
Honest recommendations
We explain every option in plain language and help you choose what’s right for your home and your budget, never simply what’s most expensive.
Upfront pricing
We give you the full price before any work begins, and what you’re quoted is what you pay. No hidden fees or unexpected invoice charges.
True Care protection
True Care brings parts and labour, diagnostics, annual maintenance and priority service together on qualifying new furnaces and air conditioners.
What your neighbours are saying about us
Choose an AC that can handle the heat
There’s more to choosing a new air conditioner than picking a brand. The right system needs to match your home, cooling needs, and efficiency goals, and planning ahead can help you make that decision before you’re dealing with a breakdown in the middle of summer.
Why AC size matters
Bigger isn’t always better. An oversized air conditioner may cycle too frequently, while an undersized system can struggle to keep your home comfortable on hot days. Proper sizing helps provide more consistent cooling and efficient operation.
Understanding AC efficiency ratings
Efficiency ratings help you compare how efficiently different air conditioners use electricity to provide cooling. Higher efficiency can mean lower energy use, but the best choice depends on your home, cooling habits, budget, and overall system.
Repair or replace your air conditioner?
A repair may make sense when your AC is otherwise in good condition and the problem is minor; see AC repair. If it’s 10 years or older, breaking down often, or facing a repair that costs half as much as a new system, replacement may offer better long-term value.
Serving London, Ontario and surrounding areas
Locally based, with technicians across Southwestern Ontario. Don’t see your town? Give us a shout. Chances are we’re nearby.
Schedule a 2-hour arrival window for any home heating, air conditioning, or plumbing service. You’ll receive a text when we’re on the way, plus a photo of your technician so you know exactly who’s coming. Book now and experience service you can trust.
AC installation and replacement FAQs
Have more questions? We’ve got the answers.
If your AC is otherwise in good condition and needs a relatively minor repair, repairing it may make sense. Replacement becomes worth considering when the system is older, needs frequent or expensive repairs, struggles to cool your home, or no longer operates efficiently. Donaldson can assess your current system and help you compare your options. For a minor problem, start with AC repair.
There isn’t one exact lifespan for every air conditioner. Equipment quality, installation, usage, maintenance, and operating conditions all play a role, and many units start needing more frequent repairs after about 10 years. Consider reliability, performance, efficiency and repair costs along with age. If yours is getting there, book a free in-home estimate.
The right size depends on your home and its cooling requirements, not simply the size of your existing AC. Donaldson inspects and measures your home before recommending equipment so your new system can be properly sized for your needs. The in-home estimate is free: request yours.
The cost depends on the size and efficiency of the system, the equipment selected, installation requirements, and your existing setup. A free in-home estimate lets us recommend suitable options and give you accurate pricing for your home. To spread the cost of a new system, see our financing options.
If possible, plan ahead rather than waiting for a breakdown. Your annual AC maintenance visit is a good time to check your system’s condition, so you have time to compare options and arrange a replacement before installation schedules get busy.
Not necessarily. But if both systems are aging, it can be worth evaluating them together. Donaldson can assess your heating and cooling equipment in one visit and help you decide whether replacing one or both makes sense. Estimates for a new furnace are free too; see furnace installation.
Both can provide cooling, but a heat pump can also provide heating. Which option makes more sense depends on your existing HVAC setup, comfort goals, home, and budget. If you’re comparing a traditional AC with a heat pump, Donaldson can walk you through both options during your free in-home estimate. Learn more about heat pumps.
Helpful resources
Everything you need to make confident decisions about your home.
Need some assistance?
Let’s get started
Reliable home service from a trusted local team: honest advice, upfront pricing, and True Care coverage that keeps us in your corner long after the job is done.
Call (519) 439-4328 or schedule your service online.
