Electrical Certificate for Selling a House: What You Need

When you sell a house in England or Wales, the buyer's solicitor will ask about the condition of the electrical installation. This usually comes through the conveyancing enquiries process and the TA6 Property Information Form, which includes direct questions about electrical safety and any work that has been carried out. If you cannot provide satisfactory answers or supporting documentation, it can delay your sale, reduce the buyer's confidence, or even cause the transaction to fall through.

This guide explains the different types of electrical certificate, when each one applies, whether you are legally required to have one, and how to deal with common situations such as missing paperwork for previous electrical work.

Types of electrical certificate

There are three main types of electrical certificate you may encounter when selling a property. Each serves a different purpose and applies in different circumstances.

Electrical Installation Condition Report (EICR)

An EICR is an inspection and assessment of the existing electrical installation in a property. It does not certify that new work has been carried out — instead, it reports on the current condition of the wiring, circuits, earthing, bonding, and consumer unit. The electrician tests every circuit and records any defects using a standardised coding system (C1, C2, C3, and FI). The report concludes with an overall assessment of whether the installation is satisfactory or unsatisfactory.

An EICR is the certificate most commonly requested during a house sale. It gives the buyer and their lender an independent assessment of the electrical installation's condition. The report is valid for the period stated by the inspecting electrician, which is typically five years for a domestic property, though older or more complex installations may be given a shorter interval.

Electrical Installation Certificate (EIC)

An Electrical Installation Certificate is issued when a new electrical installation is carried out — typically a full rewire or the installation of a new circuit in a newly built property. It confirms that the work complies with BS 7671 (the IET Wiring Regulations) at the time of installation. If your property was rewired in the last few decades, you should have an EIC from the electrician who carried out the work.

If you are selling a property that was recently rewired, the EIC is a valuable document to include in your sale documentation. It demonstrates that the work was done to the required standard and was properly tested and certified at the time.

Minor Electrical Installation Works Certificate

This certificate covers smaller electrical jobs that do not amount to a full installation — for example, adding a new circuit, replacing a consumer unit (fuse board), or installing a new electric shower circuit. It records what work was done, confirms it was tested, and provides the results. If you have had any electrical alterations done to your property, the electrician should have issued one of these certificates for each job.

Part P Building Regulations: what sellers need to know

Part P of the Building Regulations for England and Wales governs electrical safety in dwellings. Introduced in 2005, Part P requires that certain types of electrical work are either carried out by an electrician registered with a government-approved competent person scheme (who can self-certify their work) or notified to the local authority's Building Control department before work begins.

What counts as notifiable work?

The following types of electrical work are notifiable under Part P:

• Installing a new circuit (for example, running a new ring main or a dedicated circuit for a cooker or electric shower)
• Replacing or upgrading a consumer unit (fuse board)
• Any electrical work in a kitchen, bathroom, or outdoors — including adding sockets, lighting, or extractor fans in these locations
• Any electrical work in special installations or locations as defined in BS 7671, such as swimming pools or saunas
• A full or partial rewire of the property

What does not need notification?

Certain types of work are exempt from Part P notification, including:

• Like-for-like replacements of accessories such as sockets, switches, ceiling roses, and light fittings (provided the circuit protective devices are adequate for the modified circuit)
• Replacing a damaged cable for a single circuit on a like-for-like basis
• Re-fixing or replacing enclosures of existing accessories
• Adding lighting points or socket outlets to an existing circuit in a room that is not a kitchen, bathroom, or outdoors (provided the circuit protective devices and cable ratings are adequate)

If notifiable work was carried out by a registered competent person (such as a NICEIC or NAPIT member), they will have self-certified the work and issued a certificate. They should also have notified the local authority, which results in a Building Regulations Compliance Certificate being issued. If the work was done by an electrician who is not registered with a competent person scheme, it should have been notified to Building Control before it started, and a Building Control inspector should have signed it off upon completion. For more information on what happens when this sign-off is missing, see our guide on missing Building Regulations sign-off.

Do you need an electrical certificate to sell?

The short answer is no — there is no legal requirement for owner-occupier sellers in England and Wales to obtain an EICR or any other electrical certificate before selling their property. This distinguishes the position from landlords, who are legally required to have a valid EICR under the Electrical Safety Standards in the Private Rented Sector (England) Regulations 2020.

However, the practical reality is that most buyers expect some form of electrical documentation, and here is why:

• The TA6 form asks directly. Section 7 of the TA6 Property Information Form asks about the condition of the electrical installation and whether any electrical work has been carried out. If you answer that work has been done, the buyer's solicitor will ask for certificates.
• Mortgage lenders may require it. If the survey or any other information suggests the electrics may be defective, the buyer's mortgage lender may require an EICR before approving the loan. Surveyors frequently flag dated consumer units, old wiring, or a lack of RCD (residual current device) protection in their reports.
• Buyers use it for negotiation. A buyer who discovers electrical issues after making an offer may seek a price reduction or ask you to carry out the work before completion. Having an up-to-date EICR removes this uncertainty.

What happens if electrical work was done without certification?

This is one of the most common electrical issues that arises during house sales. The scenario typically looks like this: the seller had electrical work done — a new consumer unit fitted, an extra circuit added, or a bathroom rewired — but cannot produce the certificate or the Building Regulations Compliance Certificate for it.

There are several reasons this happens. The electrician may not have been registered with a competent person scheme and failed to notify Building Control. The seller may have lost the paperwork over the years. Or the work may have been done by a previous owner with no records passed on at the time of purchase.

Options for resolving missing certification

1. Contact the original electrician. If you know who carried out the work and they are still trading, contact them and ask for a copy of the certificate. Registered electricians are required to keep records, and their competent person scheme may also hold a copy.
2. Check with Building Control. If the work was notified to your local authority, they will have a record of the Building Regulations Compliance Certificate. Contact them with the property address and approximate date of the work.
3. Obtain an EICR. If the original certificate cannot be found, having a qualified electrician carry out an EICR is the most practical solution. The EICR will assess the current condition of the entire installation, including any work that was done without certification. If the installation passes with a satisfactory result, it provides evidence that the electrics are safe, even without the original certificate.
4. Apply for retrospective Building Regulations approval. You can apply to your local authority for a regularisation certificate under Section 36 of the Building Act 1984. This involves a Building Control inspector examining the work (which may require exposing parts of the installation) and, if satisfied, issuing a certificate. The fee for regularisation is typically higher than the standard Building Regulations application fee and varies by local authority.
5. Indemnity insurance. In some cases, the seller's solicitor may suggest an indemnity insurance policy to cover the risk of the local authority taking enforcement action over non-notified work. This is a relatively inexpensive option (usually £30 to £80 for a one-off policy), but it only covers the enforcement risk — it does not confirm the work is safe. The buyer's solicitor or lender may or may not accept this as sufficient.

EICR observation codes explained

When an electrician carries out an EICR, they record any issues using a standardised set of observation codes. Understanding these codes is important because they directly affect whether the report is graded as satisfactory or unsatisfactory, and they influence how a buyer and their solicitor will respond.

An EICR that contains only C3 observations (or no observations at all) will receive a satisfactory overall result. Any C1 or C2 code will result in an unsatisfactory report. If your EICR comes back unsatisfactory, you should arrange for the remedial work to be done and then have the electrician retest and update the report before sharing it with the buyer.

Common electrical issues in older properties

If your property has not been rewired in the last 25 to 30 years, an EICR is more likely to flag issues. Here are the most common problems found in older homes:

• Outdated consumer unit. Older fuse boards without RCD (residual current device) protection are one of the most frequently flagged issues. Modern regulations require RCD protection on most circuits. Upgrading a consumer unit typically costs £350 to £600.
• Lack of earthing or bonding. Adequate earthing and supplementary bonding (particularly in kitchens and bathrooms) is essential for safety. Missing or inadequate bonding is a common C2 observation.
• Old wiring. Properties with rubber-insulated or lead-sheathed cable (typically pre-1960s) or early PVC wiring (1960s to 1970s) may need a partial or full rewire. A full rewire of a three-bedroom house costs £3,500 to £6,000 depending on location and complexity.
• Overloaded circuits. Extensions and additions over the years can result in circuits carrying more load than they were designed for, particularly if additional sockets or appliances were added without upgrading the circuit protection.
• DIY electrical work. Unqualified electrical work is often identified during an EICR. Common signs include incorrectly wired accessories, missing circuit protection, and non-compliant cable routing.

NICEIC, NAPIT, and competent person schemes

When choosing an electrician for an EICR or any electrical work, you should use someone registered with a government-approved competent person scheme. These schemes exist to ensure that electrical work in dwellings is carried out safely and in compliance with the Building Regulations.

The main competent person schemes for electrical work in England and Wales are:

• NICEIC (National Inspection Council for Electrical Installation Contracting) — the largest and longest-established scheme, with regular assessment of registered contractors
• NAPIT (National Association of Professional Inspectors and Testers) — another widely recognised scheme with a searchable online register
• ELECSA — a scheme operated by ECA (Electrical Contractors' Association) for domestic installers
• STROMA — offers certification for electrical installers alongside other building services disciplines

An electrician registered with one of these schemes can self-certify their own notifiable work under Part P, which means they do not need to involve Building Control. They will issue the appropriate certificate (EIC or Minor Works Certificate) and notify the local authority on your behalf. The local authority then issues a Building Regulations Compliance Certificate, which is the document your buyer's solicitor will want to see. For more on the full set of documents you need when selling, see our guide on documents needed to sell a house.

How electrical certificates fit into conveyancing

Electrical documentation comes up at several points during the conveyancing enquiries process:

1. The TA6 form. When completing the TA6 Property Information Form, you will be asked about the electrical installation. Section 7 covers services and asks whether any work has been carried out and whether you have certificates for it. Answer honestly — misrepresenting the position can expose you to claims after completion.
2. Pre-contract enquiries. The buyer's solicitor may raise additional enquiries about the electrics, particularly if the TA6 indicates work has been done or if the property is older. They may request copies of certificates, an EICR, or evidence of Part P compliance.
3. Survey findings. If the buyer's surveyor flags the electrical installation as a concern — for example, noting an old consumer unit, visible wiring issues, or a lack of RCD protection — the buyer or their lender may make an EICR a condition of proceeding.
4. Mortgage lender requirements. If the lender has any concerns about the electrics (often triggered by the survey), they may add a condition requiring a satisfactory EICR before releasing funds. This can halt the transaction if not dealt with promptly.

Having your electrical documentation ready before these questions arise is the most effective way to keep the sale moving. This is the same principle that applies to all seller documentation — preparation reduces delays. For a parallel example with gas installations, see our guide on gas safety certificates when selling.

How to handle old wiring when selling

If your property has old wiring, you have a few options depending on the severity of the issues and the expectations of your buyer:

• Get an EICR first. Before assuming the worst, have a registered electrician carry out an EICR. Old wiring does not automatically mean unsafe wiring. If the installation passes with a satisfactory result, the EICR itself is often sufficient to satisfy the buyer and their lender, even if the wiring is older.
• Address C1 and C2 issues. If the EICR identifies dangerous or potentially dangerous defects, arrange for the remedial work to be done before marketing or at least before exchange of contracts. This avoids last-minute renegotiation and demonstrates good faith.
• Consider a consumer unit upgrade. If the main issue is a dated consumer unit without RCD protection, upgrading it is a relatively affordable fix (£350 to £600) that significantly improves the EICR result and buyer confidence. Note that replacing a consumer unit is notifiable work under Part P, so it must be done by a registered electrician.
• Factor rewiring into the price. If the property needs a full rewire and you do not wish to carry out the work yourself, you can price the property accordingly and be transparent with buyers about the electrical condition. Providing an EICR that clearly shows the issues allows buyers to make informed decisions and obtain accurate quotes for the work.

What buyers and lenders expect

Buyer expectations around electrical certificates have increased over the past decade, driven by greater awareness of electrical safety, the introduction of mandatory EICRs for rented properties, and more cautious mortgage lending practices. As a seller, you should expect the following:

• Most buyers will ask about the electrics, either directly or through their solicitor
• If you have had any electrical work done, certificates will be requested
• For properties over 25 years old that have not been rewired, an EICR is increasingly expected rather than optional
• Mortgage lenders may make a satisfactory EICR a condition of lending if the surveyor raises concerns about the electrics
• Cash buyers are generally less demanding about electrical certificates, but many still want reassurance, particularly if the property is older

Sources

• Part P of the Building Regulations (Electrical safety — dwellings) — legislation.gov.uk
• BS 7671: Requirements for Electrical Installations (IET Wiring Regulations, 18th Edition) — theiet.org
• NICEIC (National Inspection Council for Electrical Installation Contracting) — niceic.com
• NAPIT (National Association of Professional Inspectors and Testers) — napit.org.uk
• Electrical Safety Standards in the Private Rented Sector (England) Regulations 2020 — legislation.gov.uk
• Approved Document P: Electrical safety — Dwellings (2013 edition with 2016 amendments) — gov.uk
• Building Act 1984, Section 36 (regularisation of unauthorised work) — legislation.gov.uk
• Law Society — TA6 Property Information Form, 4th edition

Related guides

• WIAPS Certificate Explained: What Sellers Need to Know
• EICR: Electrical Installation Condition Report Explained
• PAT Testing When Selling a House

Frequently asked questions