Whole House Rewiring in Cornwall, CT

Knob and tube is the headline problem — no ground conductor, brittle insulation, and frequently buried under blown-in insulation it was never designed to sit against. Insurers increasingly refuse or surcharge houses that still have live knob and tube, which is why a lot of Cornwall rewires start with a letter from an underwriter rather than a fault.

The quieter problem is aluminium branch wiring from the mid-1960s to late 1970s. The conductor expands and contracts more than copper, connections loosen over time, and loose connections make heat at the exact places you cannot see. Sometimes the correct answer is a full rewire; sometimes it is approved connector pigtailing at every device, which is far cheaper. We will tell you which your house needs and why.

The fear people have is plasterboard everywhere and living in a building site for a month. That is what happens when a rewire is planned badly. Done properly, most runs go through attic and basement space, down existing wall cavities, and behind removable trim — so we open small, targeted access points rather than long channels.

We work one zone at a time. A floor gets isolated, rewired, tested and put back before we move on, so you always have working power and lighting somewhere. We patch and make good every opening we create as part of the price — that is not a separate trade you have to organise afterwards.

While the runs are open, adding circuits costs a fraction of what it will cost later. This is the point to put in the dedicated kitchen appliance circuits you are missing, the outlets you have been running extension leads to, hardwired interconnected smoke detectors, structured data cabling, and the 240V run for a future EV charger or heat pump.

We will build a circuit plan with you before the first cable goes in, room by room, so you get the house you actually use rather than a like-for-like copy of a 1940s layout. It is the single biggest opportunity to future-proof a Cornwall property.

New construction and additions in Cornwall get handled differently from retrofit work: we coordinate with your builder on the programme, work to the rough-in schedule, and get the inspection booked so the rest of the trades are not waiting on us. If you have a general contractor, put us in touch directly rather than routing messages through yourself.

A lot of whole house rewiring enquiries in Cornwall start with a quote from somewhere else that came in vague. If you have one, bring it to the conversation. We are happy to explain what is likely missing from it and what a like-for-like comparison would look like, even if you end up going elsewhere.