Is an EICR legally required when buying a house?

No. There is no legal requirement for a vendor to provide an EICR when selling a residential property. However, a standard homebuyer's survey does not include electrical testing. Without commissioning your own EICR, you have no reliable information about the condition of the electrical installation. For properties over 25 years old, or where you can see signs of old wiring or a rewirable fuse board, commissioning an EICR before exchange of contracts is strongly recommended.

How much does an electrical survey cost when buying a house?

An EICR for a house purchase typically costs £150 to £200 for a one-bedroom flat, £175 to £275 for a two-bedroom property, £250 to £400 for a three-bedroom house, and £350 to £550 for a four-bedroom house. Prices are higher in London and the South East. The cost is non-refundable if you withdraw from the purchase, but it is a small sum compared to the cost of an undisclosed rewire (£4,500 to £10,000) or consumer unit replacement (£400 to £900).

What is the difference between a C1 and C2 observation on an EICR?

C1 means danger present — the inspecting electrician has found a condition that poses an immediate risk of injury. C2 means potentially dangerous — the condition is not immediately dangerous but could become so. Both C1 and C2 observations make the EICR Unsatisfactory. A C1 finding might be an exposed live conductor, a damaged cable, or no earthing on a metal enclosure. A C2 finding might be the absence of RCD protection, inadequate bonding, or deteriorated insulation that has not yet failed. Both give strong grounds for renegotiation.

Should I withdraw from a purchase if the EICR is Unsatisfactory?

Not necessarily. An Unsatisfactory EICR gives you information — and information is power in a negotiation. The key question is: how much will the remedial work cost, and is the property still good value at the current offer price once you factor in that cost? Get quotes from electricians for the remedial work, then either request a price reduction or ask the vendor to carry out and certify the work before exchange. Withdrawal is appropriate only if the vendor refuses all concessions and the cost of remediation is prohibitive.

Will my mortgage lender ask for an EICR?

Some lenders, particularly for older properties or buy-to-let purchases, require evidence of a satisfactory EICR before releasing mortgage funds. Even where a lender does not specifically require an EICR, their surveyor may flag electrical concerns that trigger a further investigation condition on the mortgage offer. Check with your mortgage broker or lender whether an EICR will be required for your specific purchase.

Does the vendor have to let me have an EICR done?

The vendor is not legally obliged to allow a pre-purchase EICR, but virtually all will do so. It is a reasonable request and refusal would raise concerns in most buyers' minds. If a vendor actively refuses to allow an electrical inspection, treat this as a significant red flag. You may wish to make allowing an EICR a condition of your offer.

What does an EICR not cover?

An EICR covers the fixed electrical installation — wiring, consumer unit, sockets, switches, and the main earthing and bonding system. It does not cover portable appliances (which require a PAT test), the condition of the electricity meter (which belongs to the distribution network operator), or the incoming supply cable from the street. Solar PV systems and EV chargers may or may not be included — confirm the scope with the inspector before booking.

BUYER'S GUIDE

Electrical Survey When Buying a House: EICR for House Purchase UK

An EICR is not legally required when buying a house — but for any property over 25 years old, it is one of the most valuable pieces of due diligence you can commission. This guide explains what an EICR costs, what it reveals, how to interpret C1 and C2 observations, and how to use the findings to negotiate.

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12 min readUpdated 2026-06-10Andrew Moore, Founder of Elec-Mate

Written and reviewed by Andrew Moore, founder of Elec-Mate, against BS 7671:2018+A4:2026, IET Guidance Note 3 and the IET On-Site Guide.

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Key Takeaways

1An EICR (Electrical Installation Condition Report) is not legally required when buying a property — but it is strongly recommended for any property over 25 years old, any property with a rewirable fuse board, or any property where the vendor cannot produce a recent EICR.
2The cost of an EICR for a house purchase is typically £150 to £400 depending on property size. This is a small cost relative to the potential expense of undisclosed electrical defects.
3A C1 observation means danger is present and requires immediate action. A C2 observation means the installation is potentially dangerous. Both make the EICR Unsatisfactory and give strong grounds for renegotiation.
4EICR findings are quantifiable — get quotes for the remedial work and use them to negotiate a price reduction or require the vendor to complete the work before exchange.
5Mortgage lenders and insurers increasingly ask for evidence of a satisfactory EICR for older properties. Some lenders will withhold mortgage funds if an EICR reveals significant defects.

01 · Buyer's Guide

Do You Need an EICR When Buying a House?

An Electrical Installation Condition Report (EICR) is not a legal requirement for a residential property sale. Unlike a Gas Safety Record (which must be provided for rented properties), there is no obligation on a vendor to commission or provide an EICR to a buyer. However, a standard RICS homebuyer's survey explicitly excludes electrical testing, meaning that without a separate EICR, buyers have no reliable information about the condition of the wiring.

For most properties, commissioning an EICR before exchange of contracts is strongly recommended. The cost (typically £150 to £400) is modest relative to the protection it provides. An EICR is particularly important if:

The property is over 25 years old — installations from before the year 2000 may lack RCD protection on socket circuits (Regulation 411.3.3 of BS 7671), have non-compliant bonding, or have wiring nearing the end of its design life.
The consumer unit is a rewirable fuse board — rewirable ceramic fuse holders without MCBs or RCDs indicate the installation has not been significantly updated since at least the 1970s.
The vendor cannot produce a recent EICR — if the vendor has no EICR from the past five years, there is no documentary evidence of the installation's condition.
You can see signs of DIY work or old wiring at viewing — dark rubber-insulated cables, fabric-braided wiring, or non-standard fittings are all reasons to commission an inspection.

Even for newer properties, an EICR can uncover defects from poor installation work. It is one of the most cost-effective due diligence steps available to a property buyer.

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02 · Buyer's Guide

Why Properties Over 25 Years Old Need Extra Scrutiny

The 18th Edition of BS 7671 (the Wiring Regulations) was published in 2018 and updated in 2022 (Amendment 2) and 2024 (Amendment 4). Properties wired before 2000 were designed to earlier standards and may not comply with current requirements in several important ways.

No RCD protection on socket circuits — required under Regulation 411.3.3. Properties wired before the 16th Edition (1991) commonly have no RCD protection at all. This is one of the most common C2 observations in older properties.
No supplementary bonding in bathrooms — while the 17th Edition (2008) made supplementary bonding in bathrooms optional where RCD protection was present, older properties without RCDs may require supplementary bonding to metalwork in bathroom zones under Regulation 701.415.2.
Original wiring at end of life — PVC-insulated cable has a design life of approximately 25 to 40 years. Wiring from the 1980s and early 1990s is approaching or past this range. Rubber-insulated wiring from pre-1966 is well beyond its serviceable life.
Non-compliant consumer unit casing — since BS 7671:2008+A3:2015, consumer units in domestic premises must have a metal enclosure (non-combustible material). White plastic consumer units installed before 2016 may be noted as a C3 (improvement recommended) observation.

A4:2026 update — RCD protection on lighting circuits

The 2024 amendment to BS 7671 (A4:2026) introduced Regulation 411.3.4, which requires additional protection by a 30 mA RCD on AC final circuits supplying luminaires in domestic premises. Properties wired before 2026 will almost certainly lack this protection. Inspectors carrying out EICRs on older domestic properties are now expected to note its absence — typically as a C2 or C3 observation depending on the overall installation condition. Buyers of any home wired before 2026 should factor in the cost of upgrading lighting circuits to RCD protection as part of their post-purchase plan.

03 · Buyer's Guide

EICR Cost for a House Purchase (2026 Prices)

The cost of an EICR commissioned during a house purchase depends primarily on the size of the property (number of circuits) and your location. These are typical 2026 prices across the UK:

One-bedroom flat — £150 to £200. Typically 2 to 3 hours. Usually 3 to 5 circuits.
Two-bedroom property — £175 to £275. Typically 3 to 4 hours. Usually 5 to 8 circuits.
Three-bedroom house — £250 to £400. Typically 3 to 5 hours. Usually 8 to 12 circuits.
Four-bedroom house — £350 to £550. Typically 4 to 6 hours. Usually 10 to 16 circuits.
London and South East premium — add 20 to 30 per cent to the figures above. Inner London prices are typically at the top of these ranges or above due to higher labour rates, parking, and congestion.

The EICR cost is not refundable if you withdraw from the purchase, but it is a sound investment. A single C2 observation can justify a price reduction that is many times the cost of the inspection.

04 · Buyer's Guide

What an EICR Reveals About a Property

An EICR is a comprehensive assessment of the fixed electrical installation. During the inspection, a qualified electrician will carry out both a visual inspection and a series of electrical tests. Here is what the report covers:

Consumer unit and protective devices — condition, age, type of protection (MCBs, RCDs, RCBOs), and compliance with current standards. Inspectors may also note the absence of arc fault detection devices (AFDDs) as a C3 observation: Regulation 421.1.7 of BS 7671 recommends AFDD installation on AC final circuits to mitigate the risk of fire from arc fault currents. This is a recommendatory provision — absence of AFDDs is not a safety emergency — but retrofitting them when replacing a consumer unit represents a real cost buyers of older properties should be aware of.
Earthing and bonding — main earthing terminal, main protective bonding to gas and water services (Regulation 544.1.2), and supplementary bonding where required.
Circuit testing — insulation resistance, continuity of protective conductors, polarity, earth fault loop impedance (Ze and Zs), and RCD operating times. These tests reveal the condition of hidden wiring that cannot be assessed visually.
Sockets, switches, and accessories — condition and compliance, including socket locations in kitchen zones and bathroom zones where BS 7671 places restrictions.
Special locations — bathrooms, garages, outbuildings, and garden electrical installations each have specific requirements under BS 7671 Part 7 that the inspector will check.

05 · Buyer's Guide

C1 and C2 Observations — What They Mean for Your Purchase

The EICR uses a classification system defined in IET Guidance Note 3 (Table 3.5) to categorise observations. Understanding the difference between codes is essential for assessing the seriousness of any findings.

C1 — Danger Present — there is immediate risk of injury. The inspector may recommend that the circuit or installation be isolated (turned off) immediately. Examples include an exposed live conductor, a broken socket with live parts accessible, or a cable with damaged insulation. A C1 finding is the most serious possible outcome and requires urgent remedial action. It provides strong grounds for significant renegotiation or withdrawal.
C2 — Potentially Dangerous — the installation is not immediately dangerous but could become so. This is the most commonly found serious code in older properties. Examples include the absence of RCD protection on socket circuits (Regulation 411.3.3), inadequate main bonding, or deteriorated insulation that has not yet failed. A C2 finding makes the EICR Unsatisfactory and provides grounds for renegotiation.
C3 — Improvement Recommended — not classified as dangerous, but the inspector considers the installation would benefit from improvement. Examples include a non-compliant (pre-2016 plastic) consumer unit casing, or circuits that are not RCD-protected but where RCDs are not strictly required. C3 observations do not make the EICR Unsatisfactory. They are useful for planning future upgrades but do not provide the same negotiating leverage as C1 or C2 findings.
FI — Further Investigation Required — the inspector cannot fully assess part of the installation without further investigation (for example, where access is restricted, or where test results are borderline). FI observations require follow-up testing and should be resolved before exchange.

The overall EICR result is Satisfactory only where there are no C1, C2, or FI observations. An Unsatisfactory EICR does not mean the property is uninhabitable — it means there is documented evidence of work that needs to be done.

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06 · Buyer's Guide

Negotiating on EICR Results

An Unsatisfactory EICR is one of the clearest grounds for renegotiating a property purchase. Electrical remedial work is quantifiable and quotable — unlike damp or structural issues, where costs are harder to pin down, an electrician can give a firm quote for the remedial work identified by the EICR.

Get written quotes before negotiating — obtain two or three written quotes for the remedial work from NICEIC or NAPIT registered electricians. Present these to the vendor's solicitor as evidence. A quote is far more persuasive than a verbal estimate.
Price reduction is usually preferable — asking the vendor to manage and pay for remedial work before completion risks rushed or poor-quality work. A price reduction of the mid-point between your quotes gives you control over contractor selection and quality.
Factor in disruption costs — a rewire is not just about the electrician's fee. Redecoration, replastering, temporary accommodation, and the practical disruption of living through a rewire all add cost. Factor these into your negotiation.
Solicitor's retention — for significant remedial works, your solicitor can arrange a contractual retention — part of the purchase price held until the work is completed and certified. This is particularly useful if the vendor agrees to carry out the work but you want assurance it will actually be done.

07 · Buyer's Guide

What a Satisfactory EICR Means

A Satisfactory EICR is the result you are hoping for. It means the inspector has found no C1, C2, or FI observations. There may be C3 (improvement recommended) observations — these are not defects, they are suggestions for future improvement.

A Satisfactory EICR does not mean the installation is perfect or will never need attention. It means that at the time of inspection, the installation was found to be in a condition where it did not pose a danger. The inspector will recommend a next inspection date, typically in one to five years depending on the age and condition of the installation.

Keep the EICR — a Satisfactory EICR is a document you will want to keep. It demonstrates the condition of the installation at the time of purchase and will be useful when you come to sell, let the property, or make an insurance claim.
Note the next inspection date — the EICR will specify a recommended next inspection date. Diarise this and commission a follow-up EICR when due. The recommended interval for a domestic property is typically 10 years for a new installation and up to 5 years for an older one.
Review C3 observations — while C3 findings do not make the EICR Unsatisfactory, they identify areas for improvement. Review these with your electrician and plan upgrades as budget allows.

08 · Buyer's Guide

Finding a Qualified Electrician for a House Purchase EICR

For a house purchase EICR to be meaningful, it must be carried out by a competent, independent electrician. Here is what to look for:

NICEIC, NAPIT, or ELECSA registered — registration with a competent person scheme guarantees minimum qualifications and carries independent assessment. Check registration on the scheme's online register before booking.
City and Guilds 2391 or equivalent — the inspector should hold a qualification specifically in inspection and testing, not just installation work. C&G 2391 (Inspection and Testing of Electrical Installations) is the standard qualification.
Independence — use a different electrician from the one who carried out any recent work on the property. An independent inspector has no interest in concealing previous defects.
Turnaround time — house purchases often move quickly. Confirm how quickly the inspector can complete the inspection and issue the written report. A report delivered electronically on the same day as the inspection is ideal.

09 · Buyer's Guide

For Electricians: Building Your House Purchase EICR Business

House purchase EICRs are a high-volume, repeatable source of work with a predictable fee structure. Buyers are commissioning them increasingly as awareness grows, and a referral network with mortgage brokers, conveyancers, and estate agents can generate a consistent flow of bookings.

Deliver Reports Before You Leave

Use the Elec-Mate EICR app to complete the full EICR on your phone during the inspection and send the PDF to the buyer before you drive away. Speed is a competitive advantage in house purchases — buyers need the report to progress the transaction.

Quote Remedial Work on the Day

When C1 or C2 findings are identified, quote the remedial work immediately using the quoting app. Buyers need quotes quickly to negotiate with vendors. The electrician who provides a quote on the day of the EICR almost always wins the work.

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Frequently Asked Questions About Electrical Surveys When Buying a House

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Electrical Survey When Buying a House: EICR for House Purchase UK

Key Takeaways

Do You Need an EICR When Buying a House?

Get the BS 7671 A4:2026 Cheat Sheet — free

Why Properties Over 25 Years Old Need Extra Scrutiny

EICR Cost for a House Purchase (2026 Prices)

What an EICR Reveals About a Property

C1 and C2 Observations — What They Mean for Your Purchase

Try Elec-Mate free for 7 days

Negotiating on EICR Results

What a Satisfactory EICR Means

Finding a Qualified Electrician for a House Purchase EICR

For Electricians: Building Your House Purchase EICR Business

Deliver Reports Before You Leave

Quote Remedial Work on the Day

Complete house purchase EICRs faster with Elec-Mate

Frequently Asked Questions About Electrical Surveys When Buying a House

Is an EICR legally required when buying a house?

How much does an electrical survey cost when buying a house?

What is the difference between a C1 and C2 observation on an EICR?

Should I withdraw from a purchase if the EICR is Unsatisfactory?

Will my mortgage lender ask for an EICR?

Does the vendor have to let me have an EICR done?

What does an EICR not cover?

Continue reading

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EICR Certificate App

What electricians say

One App for Everything!

Fantastic app for electricians

Absolutely amazing

Trusted by electricians across the UK

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