Thermostat Replacement & Upgrades in Metro Vancouver
Replacing an old, failed or hard-to-use thermostat - from mercury dials to dated programmables - with a modern unit that is fully compatible with your system.
By the CANRO Heating & Cooling technical team · Licensed HVAC & gas-fitting contractor, Metro Vancouver · Last updated May 2026
CANRO replaces old, broken and outdated thermostats with modern smart or programmable models matched to your furnace, heat pump or boiler. We verify compatibility, transfer the wiring safely (including removing old mercury units), and configure the new thermostat to your system. Call (604) 359-1081 for honest advice.
Signs it is time to replace your thermostat
- It is an old mercury dial or a basic non-programmable unit with no schedule
- The screen is dim, unresponsive, or the buttons no longer work
- The temperature reading is clearly wrong, or the room never matches the setpoint
- It cannot control your newer system properly - for example a heat pump or dual-fuel setup
- You have moved to a smart-home ecosystem and want app, voice and schedule control
- Certain rooms are always too hot or too cold and you want sensor-based comfort
A failing thermostat does not just annoy you - it can short-cycle your equipment, run backup heat needlessly, and quietly inflate your energy bills. Replacing it is one of the lowest-cost, highest-impact upgrades in the home.
Upgrading from an old or mercury thermostat - done safely
Older Metro Vancouver homes often still have a round mercury-bulb thermostat on the wall. These contain liquid mercury and must be removed and disposed of responsibly - never thrown in the household garbage. We handle that for you, and we take care transferring the wiring, because old thermostat wiring is sometimes brittle, mislabelled, or missing the common wire a modern unit wants.
We label every conductor, confirm what it does at the furnace or air-handler, and land it correctly on the new thermostat - so the upgrade is clean and reliable rather than a source of new problems.
Making sure the new thermostat is actually compatible
The most important step in a replacement is confirming the new thermostat can control your system. A unit that is perfect for a single-stage gas furnace may not properly run a two-stage system, a heat pump, a dual-fuel setup, or electric baseboard heat.
| Your heating / cooling system | Thermostat type | Models we install |
|---|---|---|
| Gas or propane forced-air furnace (with or without AC) | 24V low-voltage smart | Nest, ecobee, Honeywell Home, Emerson Sensi |
| Central heat pump or dual-fuel (furnace + heat pump) | 24V smart with heat-pump staging | ecobee Smart Premium, Honeywell T10 Pro, Nest Learning |
| Hot-water boiler / radiators (hydronic) | Low- or line-voltage, depending on the zone controls | Honeywell, Nest, zone-specific controls |
| Electric baseboard or in-floor heating | Line-voltage (120V / 240V) smart | Mysa for Baseboard, Mysa for In-Floor |
| Ductless mini-split / window AC | Built-in remote or smart IR controller | Manufacturer controller, Mysa for AC |
We verify your equipment type and wiring first, then recommend a model that fits - so you are not stuck returning hardware or living with a thermostat that half-works.
How we install your thermostat
- We confirm what your heating and cooling system actually is, and how many stages it has
- We check the existing wiring - including whether you have a usable C-wire - and sort out power properly
- We mount the new thermostat level and on a clean backplate, with the wires landed and labelled correctly
- We configure the equipment type and staging (single-stage, two-stage, heat pump, dual-fuel, aux heat) so it runs as designed
- We connect it to your Wi-Fi and app, set up schedules or geofencing, and show you how to use it
- We run a full heating and cooling cycle to confirm everything responds before we leave
Why Metro Vancouver homeowners choose CANRO
A thermostat is a small device that controls a large, expensive system - so the wiring, configuration and system staging behind it matter far more than the box on the wall. CANRO has installed and serviced heating and cooling across Metro Vancouver since 1999.
- Licensed, insured, TSBC gas-ticketed technicians - the same crew that installs and services your furnace, boiler and heat pump
- We get the wiring and heat-pump / dual-fuel staging right, so the thermostat controls every stage of your system correctly
- Honest advice on which thermostat actually fits your home and habits - no upsell to a feature you will never use
- A real 4.9-star reputation across 85+ Google reviews from local homeowners
- We can pair the thermostat upgrade with maintenance, a repair, or a full system replacement in one visit
Frequently asked questions
Can I replace a thermostat with any model I like?+
My old thermostat has mercury in it - what do I do with it?+
Will a new thermostat fix my hot and cold rooms?+
Is replacing the thermostat enough, or might it be the system?+
Time to retire that old thermostat?
We will recommend the right replacement for your system, remove the old unit safely, and set the new one up properly. Free quotes across Metro Vancouver.