LGD Electric / Modernization / Aluminum Wiring Remediation
Aluminum Wiring Remediation in Metro Vancouver: TSBC permits, pigtailing and insurer letters of completion.
A significant portion of single-family homes built in Metro Vancouver between 1965 and 1978 were wired with solid aluminum branch conductors on 15 and 20 amp residential circuits. Aluminum behaves differently from copper. It expands and contracts more with temperature, forms an insulating oxide at connection points, and tolerates fewer loose terminations before heat builds at outlets, switches and splice boxes. Most major BC insurance carriers now require a licensed BC electrical contractor to remediate every aluminum branch connection before binding or renewing a homeowner policy. LGD Electric handles aluminum remediation across Burnaby, Richmond, Surrey, Delta, New Westminster, North Vancouver and the rest of Metro Vancouver under a Technical Safety BC (TSBC) electrical permit with an FSR declaration and a letter of completion for the insurer.
Where aluminum wiring exists in Metro Vancouver
Burnaby Heights, Capitol Hill, Willingdon Heights, Brentwood, Lochdale and the Metrotown perimeter have the densest concentration of 1965-1978 single-family homes in Metro Vancouver that may still have active aluminum branch wiring.
Richmond Steveston/Seafair, Surrey Cloverdale/Fleetwood, Delta Ladner/Tsawwassen, New West Uptown/Sapperton, 1970s North Van hillside and Maillardville-corner Coquitlam round out the pattern. Vancouver proper is largely not in this pool: the residential stock is pre-1950 or post-1990, both all-copper.
Why aluminum is an insurance issue
Aluminum expands and contracts more than copper under thermal cycling. Connections at outlets, switches and splice boxes loosen, which creates resistance, which creates heat, which accelerates oxide formation. Left alone the failure mode eventually shows as warm face-plates, scorching at device terminals and occasionally ignition. Most major BC carriers require full remediation within 12-24 months of purchase, evidenced by a letter of completion from a licensed BC contractor.
Two BC-accepted remediation paths
Two remediation paths meet insurer requirements in BC: (1) full rewire to copper, the most expensive option but one that fully future-proofs the home, and (2) approved aluminum-to-copper pigtailing using CSA-listed connectors at every receptacle, switch and fixture box. Pigtailing is typically the path most homeowners choose when the rest of the electrical system is sound.
AlumiConn is a three-port set-screw connector any licensed BC electrician can install. Copalum is a factory-crimped sleeve requiring a manufacturer-certified installer. Both carry CSA and UL listings accepted by BC inspectors. Standard wire nuts are not an accepted aluminum-to-copper splice. LGD does not pigtail aluminum with standard twist-on wire nuts: outside the CSA listing, fails TSBC inspection and fails insurer letter-of-completion review.
Technical Safety BC permits
Aluminum remediation in Metro Vancouver goes through Technical Safety BC, not the City of Vancouver system. Every municipality where aluminum branch wiring is actually present (Burnaby, Richmond, Surrey, Delta, New West, North Van, Coquitlam) uses TSBC. LGD pulls the TSBC permit with an FSR declaration. See our permit authority guide.
LGD process
- 01 Diagnostic inspection (panel plus sample receptacle box).
- 02 Scope decision (full rewire or pigtailing).
- 03 Technical Safety BC permit pulled, FSR declaration filed.
- 04 Remediation at every receptacle, switch, fixture box and splice point.
- 05 Panel terminations inspected, torqued to spec, relabeled where required.
- 06 TSBC final inspection closes the permit.
- 07 Letter of completion and itemized work record to homeowner and insurance broker.
Letter of completion
On LGD letterhead, cites the TSBC permit number, lists the remediation method, confirms device count, signed by the FSR. This is the document that binds coverage with most major BC carriers.
Aluminum wiring FAQ
How do I know if my home has aluminum branch wiring?
Homes built 1965-1978 are the common candidates. LGD provides diagnostic inspections across Burnaby, Richmond, Surrey, Delta, New West and North Van.
Can I skip pigtailing with low-wattage devices?
No. The failure mode is not strictly load-dependent. Most major BC carriers require full remediation regardless.
Does AlumiConn void the CO/ALR rating?
No. AlumiConn creates a copper pigtail to a standard copper device. CSA and UL listings cover the full assembly.
How long does a whole-home pigtail job take?
Typical single-family: 2 to 5 working days depending on device count and wall access.
Branch aluminum vs service-entry aluminum?
Different. Insurer concern is the 15A and 20A branch circuits inside the home, not the large-gauge service conductor.
Partial remediation accepted?
Rarely. Most BC carriers require a letter of completion covering every aluminum branch connection in the home.