No SPD on my EICR report: what it usually means

Absence of a surge protective device is commonly recorded as an observation on periodic reports for existing domestic installations. It does not automatically mean every EICR is unsatisfactory — inspectors weigh whether surge protection is required or recommended for that premises under BS 7671 and assign an appropriate classification code.

Many reports list missing SPD protection as C3 — improvement recommended — on older consumer units, meaning the installation may still be satisfactory overall while noting a desirable upgrade. Other circumstances — particularly where standards expect SPD provision, exposure risk is higher, or the observation combines with other defects — may attract a more urgent code.

Read the observation text and code together rather than treating any mention of SPD as failure. The linked classification hub explains C1, C2, C3 and FI in broader detail; this page stays focused on surge protection observations.

Surge protective devices divert transient overvoltage energy away from sensitive equipment and wiring. Lightning strikes, switching transients on the supply network and internal switching events can stress an installation without causing immediate visible failure, which is why modern standards increasingly address surge risk at the origin of the supply.

SPDs are classified by type according to where they are installed in the protection hierarchy — at the service entrance, at the distribution board or closer to sensitive equipment. Selection must suit the supply type, earthing arrangement and board architecture. A generic accessory purchase without design consideration can fail to provide meaningful protection or create coordination problems.

An SPD limits damage risk; it does not replace sound earthing, bonding, correct cable selection or inspection of deteriorated equipment. Scorched terminations, damaged insulation or outdated enclosures still require attention regardless of whether a surge device is fitted.

When a consumer unit is replaced or new origin equipment is installed as part of defined work, current BS 7671 requirements for surge protection apply to that scope. Omitting required SPD provision from newly installed origin equipment cannot be justified merely because the rest of the building predates those expectations.

An EICR has a different purpose. It reports on the condition of an installation already in service and whether it is satisfactory for continued use. The inspector uses the current standard and inspection guidance as a safety benchmark but does not simply list every feature that differs from a brand-new installation and classify each departure as dangerous.

The age of the consumer unit provides context, but “it complied when fitted” is not a complete defence to a present danger. Equally, “the latest edition now expects SPDs at the origin” does not make every older board unsafe. Actual condition, exposure risk, available protection and foreseeable consequences determine the classification.

The schedule of inspections includes a line for surge protection. The inspector records whether an SPD is present, its type if fitted, and any limitation if access prevented full verification at the origin of the supply.

The observation list carries the explanatory text and classification code. Read that narrative rather than assuming any mention of SPD equals failure — the code letter defines urgency relative to BS 7671 and the observed safety outcome. Reports may cross-reference other observations such as earthing arrangements, outdated consumer unit enclosures or missing main protective bonding.

SPD absence is one factor in the overall assessment, not an isolated pass-fail switch. Use observation numbers in all quotation and completion correspondence so remedial contractors can confirm whether the original condition has been resolved.

C1 means danger is present and immediate action is required. C2 means a condition is potentially dangerous and urgent remedial action is needed. C3 means improvement is recommended. Under the A4:2026 report format, FI means further investigation is advised and does not itself make the assessment unsatisfactory. Check the edition used for your report and any applicable landlord duty.

SPD absence alone, without another dangerous condition or a premises context that creates foreseeable surge risk beyond normal domestic exposure, will not normally demonstrate exposed live parts or an immediately dangerous state. A more severe code needs a reason tied to the installation under inspection.

Professional judgement can produce questions, but it should remain explainable. Ask which requirement or guidance was applied, what exposure risk or supply characteristics informed the assessment and what work would resolve the observation. A factual explanation is more useful than demanding a universal code from an online list.

• Whether the installation is domestic, commercial or mixed-use — expectations differ for origin surge protection
• Age of the consumer unit and whether a recent board change triggered stricter surge requirements for that work
• Exposure risk — tall buildings with extensive roof-level equipment, exposed rural supplies, or premises with extensive electronic loads may weigh on professional judgement
• Whether the inspection scope covered the origin of the supply or was limited by access to a sealed intake or communal cupboard
• Interaction with other observations — an outdated enclosure, inadequate earthing or thermal damage may change how SPD absence is viewed in context
• Whether the property category — HMO, care setting or commercial premises — affects applicable design expectations
• Coordination with supplier equipment and whether board space exists for a correctly selected device

Example one: a 1990s terraced house in inner London has a serviceable split-load board, satisfactory test results and no signs of thermal damage. No SPD is fitted at the origin. The inspector may record C3 — improvement recommended — while the overall result remains satisfactory. The landlord can plan an upgrade at the next consumer-unit replacement rather than as an emergency fix.

Example two: a landlord replaces the consumer unit as part of a substantial alteration but the new board is installed without the SPD provision current standards expect at the origin for that work. That omission may attract a more urgent code because it concerns compliance of recent new work, not merely the condition of legacy wiring elsewhere in the building.

Example three: a converted Victorian building with a communal intake has inaccessible origin equipment. The inspector records FI because surge protection at the supply origin cannot be verified. Under the current A4:2026 EICR format, that FI observation is advisory and does not by itself make the overall report unsatisfactory. The FI is not there because SPD absence is automatically C2. A significant concern remains uncharacterised.

“Every installation without an SPD fails the EICR” confuses improvement recommendations with unsatisfactory outcomes. Many London domestic reports record SPD absence as C3 on older boards that remain satisfactory overall.

“Fitting any SPD from a DIY store clears the observation” is unreliable. Device type, voltage protection level, coordination with the supply, earthing arrangement and board compatibility all matter. An incorrectly selected or installed device may not provide meaningful protection and can create its own safety concerns.

“SPDs prevent all lightning damage” overstates what the device can do. Direct strikes and severe network events can exceed device capacity. SPD provision reduces risk; it does not eliminate it or replace inspection of damaged equipment.

“It is only surge protection, so it cannot be C2” ignores that classification concerns the safety outcome in context, not the familiarity of the device name. A C2 on SPD-related wording should still be read for the underlying condition it describes.

If SPD absence is recorded as C3, landlords may plan an upgrade at the next consumer unit replacement rather than as an emergency fix. C2 or C1 observations require faster remedial attention under the reporting framework and applicable landlord duties.

Surge device selection must suit the supply type and board architecture — this is not a generic accessory purchase. Remedial electricians can advise on type 1, 2, or combined arrangements after reading the full report, checking earthing, confirming board space and verifying coordination with supplier equipment.

Ask for a written scope that distinguishes necessary remedial work from optional improvement. That prevents a C3 recommendation being presented as an emergency and prevents genuinely dangerous defects from being deferred merely because an SPD retrofit is planned later.

If an upgrade is being considered, discuss SPD options with a consumer-unit replacement quotation rather than assuming the same work suits every report.

Start with the overall result and the code. If the report is satisfactory and SPD absence is C3 only, the recommendation can be assessed as planned improvement; preserve the report and any quotation or design advice. If the report contains C1 or C2, follow the unsatisfactory-report route and the applicable legal timescale rather than focusing on SPD terminology alone. An FI observation does not by itself make the overall assessment unsatisfactory. Where the report requires further investigative work, that landlord follow-up remains a separate regulatory duty.

For a specified tenancy in England, regulation 3(4) can apply where the report indicates the landlord is or may be in breach of the duty to keep the electrical safety standards met, and the report requires further investigative or remedial work. The regulations should not be paraphrased as a duty to install every latest protective device in every existing home. The report's actual observations and competent remedial evidence matter.

Commercial and mixed-use premises in London may face different design expectations and insurance requirements. Check the relevant framework and discuss the premises category with the electrician rather than assuming domestic guidance applies unchanged.

• Was the origin of the supply accessible and inspected, or is FI recorded because verification was incomplete?
• Which SPD type and coordination arrangement would suit this supply and board?
• Is the comment about existing-installation improvement or compliance of recent new work?
• What classification code was assigned and what safety outcome supports it?
• Does the proposed retrofit require board space changes or a full consumer-unit replacement?
• What certification will be supplied for any remedial or alteration work?
• Are other observations — earthing, bonding, enclosure condition — connected to the SPD comment?

Surge devices must be selected and installed with regard to the supply characteristics, earthing arrangement, prospective fault current, device coordination and the manufacturer's tested assembly requirements. Connecting an unsupported device into a live board creates electric-shock, arc and fire risk.

Consumer units and intake equipment contain parts that may remain live even when individual circuit breakers are off. Do not open the board, attempt to fit an SPD module, alter earthing or bonding, or break seals on network equipment. Use an electrician competent to design and install surge protection for the specific supply.

If there is evidence of overheating, damaged intake equipment, burning smells or loss of supply following a surge event, keep people away from affected equipment and obtain urgent professional help. Do not wait for a routine remedial appointment to address active danger.

Confirm the classification code and overall satisfactory status with the inspecting electrician. Ask whether a standalone SPD retrofit is appropriate or whether a future board upgrade is the practical route. Compare the observation against our guidance on unsatisfactory results if the report is not satisfactory.

For planned inspections before letting, check residential pricing and book when the consumer unit and origin equipment are accessible. Commercial premises should use the commercial quotation pathway.

Sources checked on 3 October 2026. Read this guidance alongside your own EICR: its edition, observations, extent and limitations matter. Ask a qualified electrician to assess the findings at your property.

Standards, statutory guidance and the facts at a property can change. Use this article to ask better questions, not to override an inspector who has examined the installation. The report-specific observation, current technical requirements and competent professional judgement determine the appropriate classification and remedy.

This article was editorially reviewed on 2026-10-03. It provides general operational guidance for London property decision-makers and is not personalised legal advice.

Electrical classification on an EICR depends on the installation, the observations recorded and competent professional judgement. Always read your own report and seek competent advice for your property.