WiFi Site Surveys · Essex & East London
Wireless networks that actually work, everywhere they need to.
Chelmsford Wireless Company designs and validates business WiFi networks using professional predictive and onsite surveys — so you get full coverage, real capacity, and no dead zones, before or after you install a single access point.
- Certified Wireless Engineers
- Detailed Heatmap Reports
- Vendor-Independent Advice
What we offer
Two surveys. One reliable network.
Whether you're designing a network from scratch or troubleshooting an existing one, we match the right survey to the stage you're at.
Predictive Survey
Computer-modelled coverage and capacity planning using your floor plans — completed before any hardware is bought or installed.
Learn more →Onsite Survey
Engineers on the ground with calibrated equipment, measuring real-world signal, interference and throughput in your building.
Learn more →Post-Install Validation
A final sign-off survey once access points are mounted, confirming the network performs exactly as designed.
Get in touch →Before you build
Predictive WiFi Survey
A predictive survey uses your architectural or floor plans to build an accurate digital model of your building — including walls, materials and layout — then simulates how WiFi signal will actually travel through it.
It's the fastest, most cost-effective way to plan access point placement, estimate equipment counts, and budget accurately, all before a single cable is run.
- No site visit required to get started — just send us your floor plans
- Coverage and capacity heatmaps for every floor
- Recommended access point count, placement and channel plan
- Ideal for new builds, refurbishments and multi-site rollouts
On the ground
Onsite WiFi Survey
Our engineers visit your premises with professional-grade survey equipment to measure what's actually happening on your network right now — or to validate a design before go-live.
We run both passive surveys (signal strength, coverage and interference sources) and active surveys (real upload/download throughput, packet loss and roaming performance), giving you a complete picture.
- Walkthrough survey using calibrated wireless analysis tools
- Identification of interference, dead zones and channel congestion
- Real throughput, latency and packet-loss measurements
- Detailed report with clear, prioritised recommendations
How it works
A clear, four-step process
Consultation
We discuss your building, business needs and how the network will be used.
Survey
Predictive modelling from your plans, an onsite visit, or both — your choice.
Analysis
We turn raw data into clear heatmaps, capacity figures and recommendations.
Report & Handover
You receive a full written report plus a walkthrough of the findings.
Questions
Frequently asked questions
What's the difference between a predictive and an onsite survey?
A predictive survey is a computer simulation based on your floor plans, used to plan a network before installation. An onsite survey involves an engineer physically measuring signal and performance in your building, either to design a network or validate one that's already installed.
Do I need both types of survey?
Many clients start with a predictive survey to plan and budget, then follow up with an onsite validation survey once access points are installed, to confirm real-world performance matches the design.
How long does a survey take?
Predictive surveys are typically turned around within a few working days of receiving your floor plans. Onsite surveys depend on building size, but most single-site surveys are completed within a day, with a report following shortly after.
What do we receive at the end?
A written report including coverage and capacity heatmaps, identified issues (interference, dead zones, congestion), and clear, prioritised recommendations for equipment and placement.
Are you tied to a particular equipment vendor?
No. Our recommendations are vendor-independent — we advise on what will actually solve your coverage and capacity needs, not what we're incentivised to sell.
What areas do you cover?
We're based in Chelmsford and primarily serve businesses across Essex and East London, with surveys further afield available on request.
Get in touch
Tell us about your building
Leave a few details and we'll get back to you to discuss whether a predictive survey, an onsite survey, or both are the right fit — no obligation.
- 01245 000 000
- info@chelmsfordwireless.co.uk
- Chelmsford, Essex, UK