Caledon · Hydro One service area
Rewiring and new circuits across Caledon
Caledon has farmhouses wired a room at a time over a century, hamlet homes with original wiring, and new Bolton houses that need more circuits. We assess what's there, then rewire or extend it with an ESA permit.
Caledon's housing
A century of wiring on one road
Drive any concession road in Caledon and you pass homes from every era. You'll see brick and stone farmhouses from the 1800s and modest post-war bungalows. Further on come country estates from recent decades and new streets on the edge of Bolton. Each era was wired differently, and many older homes contain more than one.
In hamlets such as Inglewood, Belfountain, Caledon Village and Terra Cotta, older houses tend to be small and solid, with plaster walls and tight attics. Farmhouses tend to have been extended outward: a kitchen wing, then a mudroom, then a family room. Each addition brought new circuits, often tied into whatever was nearest. That patchwork is what we sort out.
What we sometimes find
In homes built before about the 1950s, knob-and-tube wiring may still be in service in walls and ceilings. Homes from the mid-1960s to the late 1970s, including some in Bolton, may have aluminum branch wiring. Neither can be confirmed from a photo. An inspection of the panel and the reachable wiring tells you what's in the house before you plan anything.
Common jobs
What Caledon owners ask us to wire
The work differs a lot between a farmhouse on a gravel road and a two-year-old house in Valleywood.
Phased farmhouse rewire
Old circuits replaced in stages, starting with the kitchen, bathrooms and anything damaged.
Garage and shop feeders
A buried cable to a sub-panel, so tools and heaters don't share the house circuits.
Barn lighting and outlets
Equipment rated for damp, dusty spaces where animals and hay are kept.
Extra circuits in new homes
Basement rooms, a home office and dedicated lines in Southfields Village or Bolton.
Outdoor outlets
Weatherproof outlets for block heaters, tools and seasonal lighting along a long driveway.
Grounding upgrades
Two-prong outlets replaced with protected or newly grounded circuits.
Old houses
Rewiring plaster, stone and timber
Older Caledon homes take more care than drywall houses. Plaster cracks if it's cut carelessly. Stone exterior walls leave no cavity to fish cable through, so new runs go along interior partitions, through floors and up from the basement. Timber framing and beams often decide the route.
We plan routes before we open anything, and keep openings small and in places that are easy to patch. Where a renovation already has walls open, we rewire those rooms while they're exposed. If the panel is full or very old, a panel upgrade in Caledon often goes with the rewire.
| Building | Typical starting point | What we plan for |
|---|---|---|
| Older farmhouse | Mixed wiring from several eras | A phased rewire with each stage inspected |
| Hamlet home | Plaster walls, small attic | Routes through floors and partitions |
| Newer subdivision home | Sound wiring, too few circuits | Added circuits and a sub-panel if needed |
| Detached shop or garage | One circuit or none | A buried feeder and sub-panel |
The process
How a Caledon wiring job runs
Assessment
Panel, existing wiring, outbuildings and what you want added or replaced.
Written plan
Routes, phases and a fixed price per phase, travel time included.
Permit and locates
ESA notification filed, and Ontario One Call booked before any trench.
Wiring
Cable fished from basement and attic, floors and furniture covered.
Inspection
ESA checks the work and the old circuits are disconnected for good.
More on wiring
Small jobs count too
Not every Caledon call is a rewire. Often it's a list: two more outlets in the family room, a dedicated freezer circuit in the garage, a three-way switch on the stairs. We price the list together so it fits one visit, which keeps the travel portion down. For the full overview, see full home wiring and rewiring.
Make a list
Write down every outlet, switch and circuit you want. We'll quote them as one job rather than several trips.
Send your listQuestions
Wiring and rewiring in Caledon: questions
Our farmhouse has been added onto several times. Where do you start?
With a map of what's there. We open the panel, trace circuits through the original house and each addition, and note every wiring type we find. Then we rank the work: anything unsafe first, then the kitchen and bathrooms, then the rest. You get a written plan with each phase priced.
Can you run power to a workshop at the back of our lot?
Yes. A shop usually gets a buried feeder from the house to a small sub-panel, sized for the tools and heat you plan to run. We arrange Ontario One Call locates before trenching, and ESA inspects the feeder like any other permitted work.
How do I find out what wiring is in my older Caledon home?
Two-prong outlets, cloth-covered cable in the basement and the age of the house are clues. A full inspection is the reliable answer. We look at the panel and every run of wiring we can reach, then write up what we found.
Do you take out the ESA permit?
Yes. In Ontario, the licensed contractor files the notification of work with the Electrical Safety Authority (ESA) and books the inspection. We handle it on every job that needs one, and you get the ESA Certificate of Acceptance when the work passes. Keep it: insurers and home buyers often ask for it.
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