Plumbing, heating, air conditioning and renovations in St. Thomas, Ontario
Protecting St. Thomas homes with reliable service.
Need a plumber, furnace repair or AC service in St. Thomas? Donaldson Home Services provides plumbing, heating and air conditioning service to homes throughout St. Thomas, with 24/7 emergency service and upfront pricing before any work begins.
Trusted home services in St. Thomas
St. Thomas continues to grow while maintaining the established neighbourhoods and strong sense of community that have long defined the city. With a mix of older homes and newer residential developments, homeowners can have very different heating, air conditioning, plumbing and home comfort needs depending on where and when their home was built.
Donaldson Home Services provides heating, air conditioning, plumbing, air quality and renovation services throughout St. Thomas. When you need a plumber, our licensed technicians are ready to diagnose and fix the problem on the spot. For heating and air conditioning, our technicians handle furnace repair, AC repair, maintenance and new installations, and we’ll recommend a solution that fits your home and budget.
When you choose Donaldson, you can expect clear communication, upfront pricing and experienced professionals who treat your home with care. From your first appointment through the completed work, we’ll keep you informed and help make taking care of your home as straightforward as possible.
Reach out today!
"*" indicates required fields
Complete home services for St. Thomas homeowners
Heating
Keep your home warm all winter with furnace repair, maintenance and installation, plus heat pumps, boilers and gas fireplaces.
Air conditioning
Stay cool all summer with dependable air conditioner installation, AC repair and maintenance, tailored to your home and comfort needs.
Plumbing
From everyday plumbing repairs and drain cleaning to water heaters and sump pumps, we keep your home running smoothly.
Same-day emergency service
When something goes wrong with your furnace, air conditioning or plumbing, waiting isn’t always an option. We offer 24/7 emergency service. Call us now and we’ll work to get a technician to your home the same day, subject to availability.
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
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.
St. Thomas home service FAQs
Have more questions? We’ve got the answers.
Donaldson provides heating, air conditioning, plumbing, air quality and renovation services for homeowners throughout St. Thomas. Our team can help with repairs, maintenance, new system installations and planned home improvements, and you can book a 2-hour arrival window for any heating, air conditioning or plumbing service. Book a service call.
Yes. Donaldson provides furnace and air conditioning repair for St. Thomas homeowners. Our technicians can diagnose heating and air conditioning problems, explain what they find and recommend the appropriate next step. We service all makes and models, including systems we didn’t install. Learn more about furnace repair and AC repair.
Yes. Our licensed technicians handle repairs, drain cleaning, water heaters, sump pumps, fixture installation, water treatment and other common residential plumbing needs for St. Thomas homes. You’ll get upfront pricing before any work begins, and for urgent leaks see our plumbing repair service.
Yes. We offer 24/7 emergency service. Call us now and we’ll work to get a technician to your home the same day, subject to availability. That covers furnace, air conditioning and plumbing problems anywhere in St. Thomas. For urgent leaks and other plumbing failures, see our plumbing repair service.
Donaldson offers indoor air quality services including duct cleaning, HRV/ERV systems, air purifiers, humidifiers, and UV light systems. Our team can help you explore options based on your home, comfort needs and indoor air quality concerns. See our indoor air quality services.
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.
