Based locally and serving Blackheath SE3 — NICEIC approved electricians for EICRs, rewires, consumer units, fault finding and 24/7 emergencies. Same-day callbacks and fast local response.
T Phase Ltd is a NICEIC approved electrical contractor based on Montpelier Vale, in the middle of Blackheath Village. This is our home ground — SE3 is where the office is, where most of our engineers live, and where we work every week. The Village and the streets off Tranquil Vale, Blackheath Park and the Cator Estate, the Span estates, Westcombe Park, Vanbrugh Park, Kidbrooke and the Lee borders. EICRs, rewires, consumer unit upgrades, lighting, EV chargers and emergency call-outs, all carried out by City & Guilds qualified engineers, fully insured and certified.
Blackheath has an unusually wide spread of housing for one postcode — Georgian crescents, Victorian villas on private estate roads, 1960s modernist terraces and new-build apartments, sometimes within a few hundred metres of each other. The age and type of the building tells us far more about what we will find than the address does.
The Village and the streets around it. Georgian and early Victorian, with a large number of flats above shops and mixed commercial and residential buildings. The recurring complication here is not the wiring in the flat but the arrangement behind it — a shop supply, a landlord's supply for the common parts and stairs, and separate flat supplies, all of which need identifying before an inspection can be quoted properly rather than after.
The Paragon and the Georgian crescents. Grade I listed, built between about 1794 and 1806 to Michael Searles' design, and largely reconstructed as flats after war damage. Work in these buildings is slow by necessity and should be quoted that way. Nothing gets chased into original fabric.
Blackheath Park and the Cator Estate. Large detached and semi-detached houses on private estate roads. These are the biggest domestic installations we test in SE3 — circuit counts well into the twenties are normal once you add garden lighting, outbuildings, garden rooms, pools and annexes, and the original schedule of circuits has often been lost through two or three changes of ownership. That is time on site, and it is the single biggest reason a Cator Estate EICR is not the same job as a flat in the Village.
The Span estates. Eric Lyons' 1950s and 60s developments off Blackheath Park — Corner Green, The Priory, Hallgate, Foxes Dale and the rest. Distinctive, well built, and now at the age where the original installation is long past its design life. Concealed conduit runs, flat roofs and open-plan layouts limit where cables can be taken, and the communal grounds, garages and lighting are usually the responsibility of a residents' management company — which means a landlord's supply that is inspected and certificated separately from the houses.
Kidbrooke Village and the newer blocks. Purpose-built apartments, typically six to eight circuits and a modern board. The quickest inspections we do. Most of the work here is EV charger installation, additional sockets and lighting rather than remedials.
Westcombe Park, Vanbrugh Park and the Lee borders. Victorian terraces and 1930s semis. A lot of partial rewires, kitchen and extension work, and consumer units fitted before RCD protection was required — sound installations that still produce an unsatisfactory report on that one point alone.
Much of Blackheath sits inside a conservation area, and a good deal of the older stock is listed or locally listed. Rewiring a listed building can require listed building consent where the work affects its character, and it always calls for an approach that keeps chasing, lifting and making good to a minimum — cables run through existing voids and under floors rather than cut into original plaster, panelling or joinery.
There is a local wrinkle worth knowing. The boundary between the London Borough of Lewisham and the Royal Borough of Greenwich runs straight through Blackheath — through the heath itself, and quite literally through the middle of The Paragon. Which council you deal with for consents, and which set of landlord licensing rules applies to you, depends on which side of that line your property sits. We work both sides of it every week and are happy to tell you which one you are on before you start ringing councils.
A valid Electrical Installation Condition Report is a legal requirement at least every five years for rented homes in England, with a copy to the tenant and to the local authority on request. Those duties were extended to the social rented sector in 2025, and existing social tenancies must hold a valid EICR by 1 November 2026.
On top of that, most privately rented homes on the Lewisham side of the borough boundary fall under Lewisham's selective licensing scheme, which began on 1 July 2024 — and an EICR is one of the documents the council asks for. Parts of Blackheath were deliberately left outside that designation, so a Blackheath address is one of the few in the borough where the answer genuinely depends on the street. Check your own address against the council's designation map before assuming either way. HMOs are separate again: Lewisham has run borough-wide additional licensing for three and four-person shared houses since April 2022, alongside the national mandatory scheme for five or more.
Whichever applies, the certificate we issue is the same document, and we can turn a managed portfolio round as a batch rather than one property at a time — same day or a run of days, certificates back as one set. Tell us the volume and the deadline and we will come back with a schedule.
We are based here, so there is no call-out charge, no mileage and no parking recharge in SE3 — and no premium for the postcode either. EICRs start at £190 + VAT for a one-bedroom flat and run to £300 + VAT for a five-bedroom house, with the certificate included and no separate fee. Larger Cator Estate and Blackheath Park houses are quoted on circuit count rather than bedrooms, because that is what actually drives the time. Communal areas, including Span estate common parts and garages, are priced per landlord's supply at £165 per board.
A consumer unit upgrade starts at £800 for up to six circuits. A full rewire runs from £8,000 for a one-bedroom property to £19,400 for a five-bedroom house — the rewire cost guide explains what moves that number, and the EICR cost guide does the same for inspections. Both let you price your own property. The pricing page carries the full schedule and the estimators.
A report is unsatisfactory if it contains any C1, C2 or FI code — a single C2 fails the whole report however sound the rest of the installation is. Given the age of much of the Blackheath stock, that is a common outcome and not a disaster.
Remedial work is quoted as a separate fixed price, carried out by our own engineers, and the certificate is re-issued once it is done. You are not handed a list of faults and left to find a second trade. You are of course free to use any qualified contractor for the remedials if you would rather compare.
NICEIC approved, fully insured, every job certified — and rated 5.0★ from 167 verified Google reviews.
"Lost power to the whole house mid-refurb. T Phase sent an engineer who quickly found the fault and got everything back up. Brilliant."
"Full rewire on our Victorian terrace. Faultless from quote to sign-off. Genuinely impressed by the standard of workmanship."
"Quick to quote, turned up on time, tidy work and fully certified. Wouldn't hesitate to use T Phase again."
From £190 + VAT for a one-bedroom flat, rising to £300 + VAT for a five-bedroom house, with the certificate included. Larger houses on the Cator Estate and Blackheath Park are quoted on circuit count rather than bedrooms, because that is what drives the time on site. Communal areas are priced per landlord's supply at £165 per board. There is no call-out charge, no mileage and no parking recharge.
Yes — our office is on Montpelier Vale in Blackheath Village, and most of our engineers live in or near SE3. We are not a national call-centre passing your job to a subcontractor. It is the reason we can usually offer a same-day callback and, in an emergency, get someone to a Blackheath address quickly.
It depends which side of the heath you are on. The boundary between the London Borough of Lewisham and the Royal Borough of Greenwich runs through Blackheath — through The Paragon itself. That decides which council handles listed building and planning consents for you, and which landlord licensing rules apply. Tell us your address and we will tell you which side you are on.
Possibly. Lewisham's selective licensing scheme, which started on 1 July 2024, covers most privately rented homes in the borough, and an EICR is one of the documents required. Parts of Blackheath were deliberately left outside the designated area, so this is one of the few places in the borough where the answer really does depend on the street — check your address against the council's designation map rather than assuming. Shared houses fall under separate HMO licensing.
Yes, and a lot of our Blackheath work is exactly that. Rewiring a listed building can require listed building consent where the work affects its character, and it always calls for an approach that keeps chasing and making good to a minimum — running cables through existing voids and under floors rather than cutting into original plaster or panelling. We will quote the careful route honestly, including where it costs more than the quick one.
Circuit count. A purpose-built apartment usually has six to eight circuits and a modern board. A large house on the Cator Estate or Blackheath Park often runs well into the twenties once garden lighting, outbuildings, garden rooms and annexes are added, and if the original schedule of circuits has been lost every circuit has to be traced and identified from scratch rather than verified against existing paperwork.
Yes. On the Span estates the houses and the communal grounds, garages and lighting are usually separate — the common parts sit on a landlord's supply belonging to the residents' management company, and are inspected and certificated separately from the individual houses. We price those per board rather than per bedroom and can carry out both in the same visit.
A report is unsatisfactory if it contains any C1, C2 or FI code — one C2 fails the whole report. We explain what is needed, quote the remedial work as a separate fixed price, carry it out with our own engineers and re-issue the certificate. You are free to use any qualified contractor for the remedial work instead.
We offer 24/7 emergency call-out and same-day callbacks across SE3, and being based in the Village we can usually get to a Blackheath address quickly. Fast-track booking within 48 hours is £50, and evening, weekend or bank holiday attendance is charged at 1.5 times the standard rate.
Not sure what your job will cost? The pricing page has estimators for EICRs, fuse box upgrades and rewires, and there are full guides to EICR costs and rewire costs in London. You can read our reviews, or see the 2,306 jobs we completed in 2026 on the about page.
Local · NICEIC approved · same-day callbacks · 24/7 emergencies.
