Trusted & Accredited Assessments
Fully accredited Domestic Energy Assessor (DEA) and Retrofit Assessor (RA) certified through Elmhurst, ECMK and TrustMark.
Flexible booking
Fast Turnaround
TrustMark Approved
Professional property measurement services
Accurate on‑site measurement surveys across London & Essex
Why Professionals Choose AssessPlus
Highly accurate digital measurements
Fast turnaround on floor plans
Ideal for EPCs, Retrofit, marketing & refurb projects
Laser measurement + digital capture
Clear, professional outputs
Local expert covering Essex & London
Property Data & Measurement Packages
Floor Plan Essentials Package
For agents, landlords, and marketing teams needing clean, accurate plans.
Includes:
- On-site measurement survey
- Digital floor plan (2D)
- Room dimensions
- Gross Internal Area (GIA)
- Delivered in PDF + image formats
- 48-hour turnaround
Best for: Sales listings, lettings, marketing packs.
Full Property Data Capture Package
For EPCs, Retrofit Assessments, and refurbishment planning.
Includes:
- Full internal measurement survey
- Room-by-room data capture
- Building fabric details
- Ventilation & heating system notes
- Window/door measurements
- Digital floor plan included
Best for: EPC assessors, Retrofit Assessors, architects, landlords planning upgrades.
Advanced Measurement & Survey Package
For technical projects requiring high-accuracy data.
Includes:
- Laser-accurate digital measurements
- Full property data capture
- Elevation measurements (where accessible)
- Construction detail notes
- Optional: U-value data collection
- Digital floor plan + measurement pack
Best for: Retrofit projects, refurbishments, extensions, technical assessments.
How It Works
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Book Your Survey
Choose your package and select a convenient appointment time.
On-Site Measurement
Data Processing
Your measurements, floor plans, and property data are compiled and checked.
Digital Delivery
You receive clean, professional outputs ready for EPCs, Retrofit, marketing, or design work.
Optional Add-Ons
We complete a precise digital measurement survey using laser tools.
Add floor plans, ventilation notes, or technical data as needed.
Optional Add-Ons
2D or 3D floor plans
Window/door schedule
Ventilation assessment notes
U-value data collection
Construction detail capture
Portfolio measurement for agents
Post-works re-measurement
AssessPlus provides professional property measurement and data services across a wide range of locations. We are proud to serve the following key areas:
Brentwood, Chelmsford, Billericay, Basildon, Wickford, Southend, Rayleigh, Romford, Upminster, Hornchurch, Grays, Tilbury, Thurrock, and surrounding Essex & London areas.