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EPC Caernarfon. Domestic & Commercial Energy Performance Certificates (EPC), without the fuss.

Domestic EPC

from only

£59.95

Commercial EPC

from only

£99.95

Specialising in EPC surveys and other property services in Caernarfon.

Expertise covers a range of surveying needs for buildings in Caernarfon and across Gwynedd.

Certified by the following organisations EPC Certification

Get your EPC in Caernarfon the easy way

Our Caernarfon EPC team can carry out commercial EPC surveys, domestic EPC surveys, SAP and BRUKL surveys for new build properties, asbestos surveys and fire risk assessments across Gwynedd and surrounding areas.

Get Your Quote

Simply request your quote using our contact form or by phone. Our customer care team will quickly get in touch during opening hours.

Survey then Payment

We will arrange an appointment with you, carry out the survey, and once completed send you an invoice.

Get Your EPC Instantly

As soon as we receive payment of the invoice, we will email your EPC. We also offer corporate accounts, with survey delivery on completion and monthly billing.

Take away the stress
of making your property
compliant today

Our Caernarfon EPC team can carry out commercial EPC surveys, domestic EPC surveys, SAP and BRUKL surveys for new build properties, EICR surveys and fire risk assessments, along side many other related property services across Wales.

Dedicated customer, technical & assessor teams

Our individual and specially trained teams work seamlessly together to provide a stress free experience

Energy efficiency improvement advice

If you need to reach a certain EPC rating, we can help you get there with our tailored Minimum Energy Efficiency Standards (MEES) reports

Over 19 Years Experience

Easy EPC has been providing EPCs since they were introduced in 2007

No hidden fees

Our quotes include lodgement to the EPC register, so what you’re quoted is what you pay

Certified by the following organisations

Trusted by over 1.8k happy people

Find out why thousands of people in Caernarfon love our service

Domestic & Commercial Energy Performance Certificates (EPC) Caernarfon

We provide EPCs in Caernarfon and across Gwynedd for both Domestic and Commercial properties. A valid EPC is required to be in place before the sale or rental of your property. The EPC survey itself is entirely non intrusive and won't damage the building in any way. Once the survey is complete the EPC report will be produced, which gives the building an Energy Performance Rating rating on a scale from A to G.

For most rental properties an EPC rating of E or better is required, in compliance with the Minimum Energy Efficiency (MEES) legislations of 2018. For properties for sale, MEES legislation does not yet apply, however an ever increasing number of financial institutions require properties to demonstrate they would be MEES compliant before agreeing mortgage funding.

Across Caernarfon, the most common domestic EPC band is D, with 33% of homes rated C or above and an average energy-efficiency score of 59 out of 100. Commercial properties in the wider Gwynedd area have an average rating of C 72 (UK average D 77).

There is real room to improve: the average Caernarfon home could raise its score by about 23 points, and 83% could improve by 10 points or more. The average home here emits roughly 4.8 tonnes of CO₂ a year.

Around 60% of homes in Caernarfon are owner-occupied and 16% are privately rented. About 75% are houses and 10% flats, and 53% are heated by mains gas. On the fabric, 44% have insulated cavity walls and 90% are fully double-glazed or better.

Letting a property in Caernarfon? About 76% of privately rented homes here are rated below an EPC C, the level the government has proposed as a future minimum for rented homes, and 5.4% are rated F or G, below the EPC E minimum needed to let a home today. We can carry out the EPC and advise on the most cost-effective way to improve the rating.

New-build makes up about 6% of certificates in Caernarfon, averaging a band B. New builds need a SAP calculation and an as-built EPC, both of which we provide.

These figures are from analysis of the 6,172 currently valid domestic EPCs for Caernarfon in the publicly available government data set, covering certificates lodged in the ten years to 2026-08-16 (one per property, its latest). Values are medians/averages from the source data.

EPC statistics on this page are derived from the Ministry of Housing, Communities & Local Government (MHCLG) Energy Performance of Buildings Data, licensed under the Open Government Licence v3.0.

Easy EPC also provides these property services in Caernarfon: Domestic EPC, Commercial EPC, EICR electrical reports, Gas Safety Certificates, Fire Risk Assessments, SAP calculations, SBEM and BRUKL reports, Display Energy Certificates, asbestos surveys, air tightness testing, sound insulation testing and legionella risk assessments.

See how Caernarfon compares in our full domestic and commercial EPC statistics for England and Wales.

EPC services in nearby areas

Bangor (Gwynedd) Pwllheli Criccieth Bala Dolgellau Porthmadog

EPC ratings by postcode area in Caernarfon

Within Caernarfon, LL55 has the highest share of homes rated C or above (38%) and LL54 the lowest (25%). Older housing usually explains the gap, and it is where an EPC most often finds cheap improvements.

Postcode area	Homes assessed	Most common band	Rated C or above
LL55	4,444	D	38%
LL54	2,271	D	25%

Currently valid domestic EPCs, one per property, lodged in the ten years to 2026-08-16. Postcode areas with fewer than 100 assessed homes are not shown.

What EPCs in Caernarfon most often recommend

Every EPC lists the improvements that would raise the home's rating. Across 6,172 valid certificates in Caernarfon, the typical home is rated D 62 and could reach B 82 with the measures its EPC recommends. The most frequent are:

Solar photovoltaic panels, 2.5 kWp — recommended on 80% of Caernarfon EPCs, typically £3,500 - £5,500.
Solar water heating — recommended on 74% of Caernarfon EPCs, typically £4,000 - £6,000.
Floor insulation (solid floor) — recommended on 63% of Caernarfon EPCs, typically £4,000 - £6,000.
50 mm internal or external wall insulation — recommended on 39% of Caernarfon EPCs, typically £4,000 - £14,000.
Low energy lighting for all fixed outlets — recommended on 32% of Caernarfon EPCs, typically £20.
Cavity wall insulation — recommended on 19% of Caernarfon EPCs, typically £500 - £1,500.

For landlords the list matters: 76% of privately rented homes in Caernarfon are currently below band C, the minimum for new tenancies from 1 October 2030. Your EPC's own recommendations are the starting point for the plan.

Cost ranges are the register's indicative figures, not quotes. Book an EPC in Caernarfon and the certificate will list the measures for your home.

For properties for which we have produced an EPC in Caernarfon, if shown not to meet MEES targets, we can then provide tailored advice on the least disruptive and most cost effective ways to improve the building to achieve the targeted rating. We are happy to provide more in depth MEES advice, including on MEES Exemptions so please Contact Us for more information.

Wondering what actually moves a home's rating? Our EPC ratings explained guide includes an interactive explorer built on real RdSAP calculations: pick a home like yours and watch the certificate respond. Or answer three questions on our EPC calculator for an instant estimate.

Domestic EPCs

Carried out by one of our fully accredited Domestic Energy Assessors (DEA), the EPC survey will look at the way the property is constructed, heated (including water heating), insulated, ventilated and lit. The survey does not look at the way the property is used by the residents, so excludes appliances and does not take into account things such heating patterns, instead using a standard set of assumptions about how the house is lived in. This allows for a fair comparison between different properties.

The survey is entirely non invasive. The assessor will not drill any holes or unscrew any access panels. For any insulation added to the property since its original date of construction to be included, the assessor will need to be able to visually evidence it on the day (over 75% of its area for loft insulation, and in multiple locations for wall insulation), or be provided with documentary evidence, such as an installer's receipt.

Where neither documentary evidence or visual inspection can be used to evidence insulation, the assessor will class this element as ‘as built’. The EPC calculation will then make an assumption about what is there, based on the age of the building and the building regulations that were in place at the time of construction. The assessor does not make, or have any control over, these assumptions.

It usually takes around 30 mins to conduct an EPC survey for an average 3 bedroom house. There is then a 2 working day processing period after which you will receive an invoice, followed by the EPC documents immediately on payment.

We are happy to provide more in depth advice on Domestic EPCs, including on Domestic EPC exemptions. so please Contact Us for more information.

Commercial EPCs

Carried out by one of our fully accredited Non-Domestic Energy Assessors (NDEA), the Commercial EPC survey will look at the way the property is constructed, conditioned (including for water heating), insulated, ventilated and lit. It also takes into account the different activities that take place within each zone of the property.

The Commercial EPC survey is entirely non invasive. The assessor will not drill any holes or unscrew any access panels. Any elements of the building and its systems that cannot be visually inspected during the site visit can also be accounted for by documentary evidence. In order to achieve the most accurate rating, you can provide in advance, or make available on the day, any documentation you may have relating to the construction of the building and the make and model of any HVAC systems, lighting designs etc.

For any elements of the building that can not be visually inspected or evidenced by documentation, a set of default assumptions have to be made. These assumptions use ‘worse case scenario’ default values, and as such can lead to a worse EPC rating. The Commercial EPC process does not take into account energy used by commercial processes taking place within the building, such as manufacturing, food preparation etc, to allow a fair comparison between buildings. more information.

Our surveyor will need access to all parts of the building, including any plant rooms. They will take a set of measurements, notes and photographs of various elements of the building. For a Commercial EPC in Caernarfon on a building sized such as, for example, a regular single storey coffee shop, the site visit usually takes approximately 30 minutes. Survey time is however dependent on the size and the complexity of the property, so may take several hours or more for a complex building such as a large care home.

Once our assessor has visited the site, all the data collected will be used to make a 3d model of the building in specialist software. From this an EPC calculation will be run, using the Simplified Building Energy Model (SBEM) methodology, giving the building an EPC score on an A+ to G scale. This score relates to how much CO₂ was produced generating the energy to condition, light, ventilate and provide domestic hot water for the building.

Alongside the EPC report, the SBEM calculation also provides a Recommendation Report (RR), however this report, which is automatically generated by the software, is very generic, so alongside your Commercial EPC in Caernarfon we can also provide a much more specifically tailored report examining the least disruptive and most cost effective ways to achieve a target EPC rating. This is in the form of our Minimum Energy Efficiency Standards (MEES) reports.

We are always happy to provide more in depth information on Commercial EPCs, including on Commercial EPC exemptions. So please Contact Us

Your Questions, Our Answers

Dive into Our FAQ Section for Help and Guidance

The most common domestic EPC rating in Caernarfon is band D, with 33% of homes rated C or above and an average efficiency score of 59 out of 100. This is based on 6,172 currently valid certificates, lodged in the ten years to 2026-08-16.

Yes. The average Caernarfon home could raise its score by around 23 points, and 83% could improve by 10 points or more. We include tailored improvement advice with every assessment.

The measures that appear most often on Caernarfon EPCs are Solar photovoltaic panels, 2.5 kWp (80% of certificates), Solar water heating (74% of certificates), Floor insulation (solid floor) (63% of certificates). The typical Caernarfon home is rated D 62 and could reach B 82 with the improvements its certificate lists.

We can usually book a Domestic EPC assessment in Caernarfon within a few working days and lodge the certificate shortly after the visit. Commercial EPC timing depends on property size and complexity.

Domestic EPCs and Commercial EPCs (non-domestic) require a site visit by an accredited assessor. SAP and SBEM/BRUKL calculations for new builds are desk-based from drawings and do not require a site visit.

Prices vary by property type and size. Request a quote via our form and our customer care team will send a fixed-price quote by return, with no obligation.

Yes. Every EPC we produce is lodged on the official government EPC register. Other certificates (EICR, Gas Safety, Fire Risk Assessment, BRUKL reports) are not lodged on the EPC register but are valid compliance documents in their own right.