How long does the EPC survey take on the day?

Typically 30 to 60 minutes for a standard domestic property, depending on size, number of extensions and access to the loft and meter cupboard.

How quickly can I get the actual certificate?

With an assessor offering same or next working day lodgement, you can have a legally valid certificate on the Register within 24–48 hours of the survey.

Can I get an EPC on the same day I book it?

Some assessors, including Team EPC, can offer same-day appointments subject to availability — it's always worth asking directly rather than assuming a multi-week wait is standard.

Why do some companies take weeks to deliver an EPC?

This is usually a booking capacity issue or a batch-processing approach to lodgement, rather than anything intrinsic to the assessment itself, which takes under an hour to carry out.

What can delay my EPC appointment?

No access to the loft or a locked room, nobody present to let the assessor in, and properties mid-renovation are the most common causes of delay or an incomplete survey.

Do commercial EPCs take longer than domestic ones?

Yes, generally — both the site visit and the SBEM calculation are more involved than the domestic RdSAP process, especially for larger buildings with complex heating and ventilation systems.

Guide · guides

How long does an EPC take, and how fast can you get one?

The survey itself takes under an hour — here's what actually determines how quickly you get the finished certificate.

10 min readBy Nabhan Islam Reviewed by Awais Sarwar, MSc Updated 6 Sept 2026

How long does an EPC take, and how fast can you get one?

The short answer

The physical EPC survey usually takes 30 to 60 minutes for a typical home, depending on size and how many rooms, extensions and heating zones there are. The certificate itself is then calculated and lodged on the national EPC Register, which with a responsive assessor can happen the same day or the next working day. The full process from booking to receiving your certificate can be as fast as 24–48 hours if you use an assessor offering same or next working day lodgement, or considerably longer if you book with an assessor working to a multi-week queue.

020 3092 8551

Survey duration

30–60 mins

Typical domestic property

Fastest turnaround

Same/next day

Survey to lodgement, with the right assessor

Commercial survey

1–3 hours

Depends on size and services

Certificate validity

10 years

Once lodged

What happens during the visit itself

An assessor arrives, walks every room including the loft (if accessible) and any outbuildings, measures the floor area, records the construction type of the walls and roof, checks the glazing, and notes the make, age and controls of the heating system along with the hot water arrangement and lighting. For a typical two or three-bedroom home this takes roughly 30 to 45 minutes; larger properties, homes with multiple extensions built at different times, or properties with restricted access to the loft or meter cupboard take longer. None of this requires you to move furniture or empty rooms, though clear access to the loft hatch and any airing cupboard speeds things up considerably.

Measuring and recording room dimensions and floor area
Inspecting loft insulation depth (if the loft is accessible)
Checking glazing type throughout the property
Recording the heating system, boiler details and controls
Noting lighting type in each room
Photographing key features for the assessor's records

From survey to certificate: what happens next

Once the assessor has the data, it's entered into RdSAP (or SBEM for commercial premises) software, which calculates the rating and generates the certificate and recommendations report. This step can be done on site immediately after the survey or back at the office, and it's here that turnaround times genuinely diverge between assessors — some lodge within hours, others batch-process certificates once a week. The certificate only becomes legally valid once it is lodged on the national EPC Register, so ask specifically when lodgement will happen, not just when the survey is booked for.

Typical timeline from booking to certificate

BookingMinutes
Confirm property details, address and access arrangements.
Site visit30–60 mins
Assessor surveys the property in person.
Calculation
Data entered into RdSAP/SBEM software to generate the rating.
LodgementSame/next working day with Team EPC
Certificate lodged on the national EPC Register, becoming legally valid.

The buildings behind this advice

What slows an EPC down

The most common causes of delay are entirely avoidable. A locked loft hatch with the key missing, a tenant not being home to give access, or a property under renovation with rooms inaccessible all mean the assessor either can't complete the survey or has to make conservative assumptions that can pull the rating down. Booking with an assessor who has a multi-week diary, rather than one offering next working day slots, is the other major source of delay, and it's one that's entirely within your control when choosing who to instruct.

No access to the loft, meter cupboard or a locked room
Nobody available to let the assessor in at the booked time
Choosing an assessor with a long booking queue
Waiting for lodgement rather than confirming it happens same or next day
Property mid-renovation with incomplete access to finished rooms

Speed up your EPC appointment

Confirm loft hatch access and have the key readyOr clear a path if it's boarded and stored on
Make sure someone is present for the full appointment window
Have boiler documentation or building control certificates to handCavity wall or loft insulation proof can improve the rating
Ask upfront when lodgement will happen, not just the visit date

How fast is 'fast'?

For most transactions, a next working day lodgement is more than sufficient — sellers typically need the EPC before marketing starts, which is rarely a same-day deadline. Where speed genuinely matters is a chain under pressure at exchange, a landlord who's just realised their existing certificate has lapsed days before a new tenancy starts, or an estate agent needing to get a listing live immediately. In these cases, same working day survey-to-lodgement is achievable with an assessor who has both availability and an efficient in-house lodgement process, rather than outsourcing the paperwork to a separate team.

Turnaround at a glance

30–60 min

On-site survey time

Same/next day

Booking to lodgement, Team EPC

7 days

Legal deadline to have an EPC once marketing starts

Commercial EPC timelines

Commercial premises generally take longer on site, from around an hour for a small single unit up to half a day or more for a large or multi-tenanted building with complex mechanical ventilation, multiple heating zones or specialist lighting controls. The calculation step (SBEM) is also more involved than the domestic RdSAP process, so while it's still realistic to get a small commercial EPC lodged within a couple of working days, larger or more complex buildings should be booked with a longer lead time in mind.

Small retail unit or single office: survey around 1 hour, lodgement within a few working days
Larger or multi-let commercial building: survey several hours, lodgement can take longer
Warehouses and industrial units: timeline depends heavily on the complexity of services installed

Booking for a deadline

If you're working to a fixed date — exchange, completion, a tenancy start — tell the assessor upfront rather than mentioning it as an afterthought. A good assessor will flag immediately if your deadline isn't realistic given current availability, rather than accepting the booking and letting you find out later. Building in a few days' buffer between the survey and the date you actually need the certificate for is sensible practice even with a fast-turnaround assessor, since access issues on the day can still push things back by 24 hours.

Need your EPC fast?

Team EPC lodges certificates same or next working day across Greater London and the Home Counties. Tell us your deadline when you book and we'll confirm whether it's achievable.

Written by

Nabhan Islam

Head of Marketing & Commercial Lead

Reviewed by

Awais Sarwar, MSc

Accredited Energy Assessor — Accredited domestic and commercial energy assessor, listed on the EPC Register

10 min readLast reviewed 6 September 2026Facts verified 6 September 2026 Checked quarterly

Sources

The Energy Performance of Buildings (England and Wales) Regulations 2012 — legislation.gov.uk
Find an energy certificate — GOV.UK
SAP and RdSAP — Standard Assessment Procedure documentation — BRE Group
Elmhurst Energy — accreditation and technical guidance — Elmhurst Energy

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