Greenslate Company - Property Compliance & Energy Assessments for North Wales
Greenslate Company is a premier property compliance firm serving homeowners, landlords, and estate agents across Bangor, Anglesey, and Gwynedd. Elmhurst accredited, TrustMark approved, and fully insured.
Elmhurst Energy Accredited
Nationally recognised accreditation scheme
TrustMark Approved
Government Endorsed Quality scheme
Government Register
All certificates lodged on the official register
Fully Insured
Professional indemnity and public liability
Five Services. One Trusted Provider.
We handle the full range of property compliance requirements so you can stay legally compliant, market your property with confidence, and protect your tenants — without juggling multiple contractors.
Energy Performance Certificates (EPCs)
A legal requirement when selling or letting any property. We carry out thorough domestic and commercial energy assessments and lodge every certificate on the official government register. Valid for 10 years.
Retrofit Assessments (PAS 2035)
Planning eco-upgrades or applying for a green energy grant? Our PAS 2035 compliant Retrofit Assessments identify the right improvements for your property and provide the documentation required by funding schemes.
Legionella Risk Assessments
Landlords have a statutory duty to assess and control the risk of Legionella in their properties. Our thorough risk assessments ensure you meet your legal obligations and protect your tenants' health and safety.
Electrical Equipment Testing (EET)
Formerly known as PAT testing, Electrical Equipment Testing verifies that portable appliances in your property are safe to use. Essential for landlords, HMOs, and commercial premises to demonstrate appliance safety.
Professional Floor Plans
High-quality, accurate floor plans produced for estate agent listings, property marketing, and planning applications. Clear, professionally drawn plans that help buyers and tenants understand your property at a glance.
Not sure which service you need?
Get in touch and we'll advise on exactly what's required for your property and situation — no obligation.
Landlord Compliance Bundles
Combine your legally required assessments into a single visit and get everything done in one go — at a discounted package price.
Most landlords need an EPC, a Legionella Risk Assessment, and Electrical Equipment Testing before they can legally let a property. Booking them separately means three separate visits, three separate invoices, and three separate disruptions for your tenants. Our compliance bundles combine all three into a single appointment — saving you money, protecting your tenants from unnecessary disturbance, and giving you a complete, documented compliance record in one efficient visit.
- One visit — minimal disruption for tenants
- Discounted package pricing vs. booking separately
- Complete compliance record delivered together
- Covers all three core landlord legal obligations
- Fast turnaround — documentation ready same day or next working day
Landlord Compliance Bundle
Three services. One visit. One price.
Energy Performance Certificate
Legally required before letting. Valid 10 years.
Legionella Risk Assessment
Statutory landlord duty. Written report included.
Electrical Equipment Testing
All portable appliances tested. Certificate issued.
Bundle pricing available — contact us for a quote
Two Bundles. One Trusted Provider.
Purpose-built packages for North Wales property professionals — choose the bundle that fits your role.
Landlord Compliance Bundles
Total Legal Safety & Peace of Mind
Estate Agent Listing Bundles
Speed & Marketing Impact
Estate Agent Marketing Bundles
Local estate agents and letting specialists trust us to deliver the compliance and marketing essentials that get listings live without delay. No chasing separate suppliers, no missed deadlines.
Faster Speed to Market
EPC and floor plan delivered within 24 hours so listings go live without waiting.
Consistent Quality
Professional, clearly labelled layouts that match premium estate agency standards every time.
Single Point of Contact
No more juggling separate energy assessors and floor plan sketchers — one call covers everything.
The Listing Essentials Bundle
EPC + Professional 2D Floor Plan. Delivered together.
Energy Performance Certificate
Fully compliant EPC lodged on the government register.
Professional 2D & 3D Floor Plan
High-accuracy, clearly labelled layout ready for portals.
24-hour turnaround — listings live without delay
Who We Work With
Whether you're a landlord managing a portfolio, a homeowner preparing to sell, or an estate agent needing a reliable compliance partner — we make the process straightforward.
Landlords
Stay compliant across all your obligations — EPCs, Legionella risk assessments, and electrical equipment testing — with a single accredited provider you can rely on.
Homeowners
Selling your home or planning energy improvements? We provide EPCs, PAS 2035 Retrofit Assessments, and professional floor plans to help you move forward with confidence.
Estate Agents
A fast, reliable compliance partner for your entire portfolio. EPCs, floor plans, and safety assessments — all from one accredited, TrustMark approved provider with a professional turnaround.
How It Works
A straightforward process from first contact to completed documentation.
Book Your Assessment
Contact us online or by phone. Tell us which service you need and we'll confirm your appointment quickly — usually within 24 hours — working around your schedule.
On-Site Visit
Our accredited assessor visits your property and carries out a thorough, professional assessment. We work efficiently to minimise disruption — most visits are completed in under an hour.
Documentation Delivered
Your certificate or report is produced, lodged where required on the official government register, and delivered to you promptly. Fully compliant, legally valid, and ready to use.
Covering North Wales
Based in the Menai region, we serve homeowners, landlords, and estate agents across Bangor, the Isle of Anglesey, Gwynedd, and the wider North Wales area.
Accredited, Insured, and Compliant
Every assessment we carry out and every certificate we issue meets the highest professional standards. You can book with complete confidence that our work is accurate, legally valid, and backed by recognised industry accreditation.
Elmhurst Energy Accredited
Elmhurst Energy is one of the UK's leading accreditation schemes for domestic and commercial energy assessors.
TrustMark Government Endorsed
TrustMark is the only Government Endorsed Quality scheme covering work carried out in and around the home.
Fully Insured
We carry full professional indemnity and public liability insurance for complete peace of mind on every job.
Ready to Book or Get a Quote?
Fast response, no obligation, and a professional service backed by Elmhurst accreditation and TrustMark approval.