About Your Assessor
AssessPlus provides accredited EPCs, PAS 2035 Retrofit Assessments and property measurement services across Essex and London. Built on technical accuracy, clear communication and a practical, local approach, we deliver assessments you can rely on.
Focused on accuracy, clarity and professional reporting
Local, friendly service backed by technical expertise
Trusted by landlords, homeowners, agents and retrofit teams
Accredited EPC and PAS 2035 Retrofit Assessor serving Essex & London
Trusted & Accredited
Who We Are
AssessPlus is an independent energy assessment and property data service based in Brentwood, Essex, supporting clients across Essex and East London. We specialise in:
• EPC Assessments (RdSAP10)
• PAS 2035 Retrofit Assessments
• Medium-Term Improvement Plans
• Property Measurement & Floor Plans
• Landlord & Letting Agent Support
Our mission is simple: make energy assessments clear, accurate, and stress-free.
Our Approach
Accuracy First
We use modern digital tools, laser measurement, and up-to-date assessment standards to ensure every report is precise and reliable.
Clear, Actionable Reporting
No jargon. No confusion. Just straightforward guidance you can use for compliance, upgrades, or property improvements.
Professional & Friendly
We pride ourselves on being approachable, punctual, and easy to work with — whether you’re a landlord, agent, or homeowner.
Accredited & Fully Insured
AssessPlus is accredited and quality-assured through:
Elmhurst Energy
ECMK
TrustMark
PAS 2035 Retrofit Framework
This ensures every assessment meets the highest industry standards.
Landlords
Fast EPCs, Retrofit Assessments, and upgrade plans to keep rental properties compliant.
Who We Work With
Letting Agents
Reliable, repeatable service with agent-ready documentation and portfolio support.
Homeowners
Clear guidance for improving energy efficiency, planning upgrades, or preparing to sell.
Retrofit Teams & Contractors
Accurate data capture, MTIPs, and PAS 2035 compliance support.
Our Story
AssessPlus was created to solve a simple problem: energy assessments were often confusing, slow, or inconsistent.
With a background in property data, building fabric, and retrofit compliance, we set out to build a service that is:
• technically strong
• customer-focused
• fast and reliable
• transparent and easy to understand
Today, we support hundreds of clients across Essex and London with assessments they can trust.