AC Installation, Furnace Repair & Plumbing in Alliston

Relica Comforts is a licensed HVAC and plumbing company serving Alliston and the wider Town of New Tecumseth, including Tottenham and Beeton. Alliston sits in south Simcoe County where Highway 89 meets the Highway 400 corridor — close enough to Barrie and the north GTA that much of the town commutes, and far enough out that the surrounding concessions are still farmland. We repair and install furnaces, heat pumps, and air conditioners, and handle full plumbing across the area. We answer the phone 24/7 for no-heat and emergency calls at (416) 858-4744.

AC installation in Alliston

Cooling is what we get asked about most here, and the town's building history explains why. New Tecumseth grew hard through the late 1990s and 2000s as subdivisions filled in around the Honda plants and along the edges of the old town, and the builder-grade air conditioners that went into those homes are now 15 to 25 years old. A central air conditioner in Ontario lasts about 12 to 15 years, so a large share of Alliston homes are running units past their design life — the ones that limp through July on a recharge, or that run all afternoon without ever bringing the upstairs down.

When we quote an install we size the unit with a proper heat-gain calculation (CSA F280), not a tons-per-square-foot rule of thumb. That matters more than most people expect. Oversizing is the most common fault we find in replacement quotes: a unit that is too big satisfies the thermostat in a short burst and shuts down before it has removed any humidity, which leaves a house that is cold and sticky at the same time. The newer Alliston subdivisions in particular have open plans, two storeys, and large south-facing windows, which makes the real cooling load less obvious than the floor area suggests.

The efficiency decision is usually simpler. For most homes here, 16 to 18 SEER2 is where the payback still makes sense over an Ontario cooling season. Above that, the extra cost takes a long time to come back unless you run cooling hard all summer, and what you are really buying is comfort and quiet rather than a lower hydro bill. The one thing worth checking before you buy is your furnace: the blower that moves cooled air through the ducts sits inside it, and a high-efficiency AC matched to an old single-speed blower will not deliver its rating. Where the furnace and AC went in together and are aging together — common in the 2000s builds — doing both at once avoids paying for a second teardown a year later. Full detail on compressor staging, SEER2, the 2026 A2L refrigerant change, and what the warranties actually cover is on our AC installation page.

Older homes closer to the downtown core, and properties out on the concessions, do not always have ductwork to work with. A ductless mini-split handles those without opening up walls, cools room by room so you can set different temperatures in different spaces, and on an inverter unit will heat through the shoulder seasons as well. If your existing air conditioner is running but not keeping up, start with AC repair — a capacitor, contactor, or fan motor is a repair, not a replacement, and we will say so.

Furnaces and heating in south Simcoe

Alliston is not in the Georgian Bay snowbelt the way Barrie and Collingwood are, but south Simcoe still gets a long, cold heating season, with open, windswept farmland on three sides of town putting real load on a furnace from November through March. The same age curve applies to heating as to cooling: the subdivisions built through the 2000s are now in the window where original furnaces start failing, and efficiency drifts down with age. A unit rated in the low 90s when it was installed can be running well below that two decades later, which shows up on the gas bill long before it shows up as a breakdown.

We repair and install all major furnace brands, carry the parts that fail most often on the truck so most repairs finish in one visit, and give you a straight repair-versus-replace answer instead of a sales pitch. Common furnace repairs run roughly $150 to $500+ depending on the part and the labour involved; we charge a flat diagnostic fee and you approve the price before any work starts. If you are weighing a replacement, our guide on what a new furnace costs in Ontario lays out the numbers.

Natural gas in town, propane on the concessions

In-town Alliston, Tottenham, and Beeton are on Enbridge natural gas, which keeps heating costs closer to what Barrie pays. The rural properties out on the concession roads around New Tecumseth often are not — those homes run on propane or heating oil with an on-site tank and scheduled deliveries, and rural Ontario households spend considerably more on home energy than urban ones do. That changes the math. On propane or oil, the efficiency of the equipment and the fuel it burns carry more weight, and a cold-climate heat pump is often worth pricing against a straight furnace replacement rather than assuming like-for-like is the answer. We service natural gas and propane furnaces and will lay out both options with real numbers before you decide.

24/7 emergency service across New Tecumseth

We answer the phone 24 hours a day at (416) 858-4744 — nights, weekends, and holidays — for the whole New Tecumseth area, and dispatch a licensed technician rather than taking a message for the morning. A no-heat call in January is not a next-business-day problem out here: a furnace that quits overnight in a rural house can leave you with split pipes by morning, and water on a basement floor only gets more expensive the longer it runs. You get the flat diagnostic fee and the repair price up front, before anyone opens a panel.

Water heaters, sump pumps, and plumbing

We handle full plumbing across Alliston, Tottenham, and Beeton. Water heater replacement is the most frequent call — a tank lasts about 10 to 12 years and rarely fails gracefully, so once it is leaking from the bottom the job is a same-day replacement rather than a repair. Faults worth fixing on a tank with years left, such as a failed thermocouple or a burnt-out element, we will tell you about instead of quoting a replacement you do not need. We also install and service sump pumps, which matter on the lower-lying properties near the Nottawasaga River and through the spring melt generally, and handle drain cleaning, backflow prevention, and emergency pipe repair. Rural properties on well and septic get the same service.

Communities we cover around Alliston

Beyond Alliston itself we serve Tottenham, Beeton, and the New Tecumseth concessions, plus Angus and Essa Township to the north, Barrie up the 400, and Bradford to the east. For homeowners who would rather not think about it, a seasonal maintenance plan puts the fall furnace check and the spring AC tune-up on the calendar — which is also what keeps most manufacturer warranties valid.