Wi-Fi that's surveyed before it's designed
Every design we hand over starts with measured data — a real access point on a tripod, a calibrated Ekahau survey, and a report the installer can be held to. Surveys, RF design, cabling and installation for UK commercial buildings, all delivered by our own teams.
Offices · warehouses · schools · hotels · care settings · managed property
Book a Wi-Fi survey
Four things we get called in to fix
Different symptoms, and nearly always the same root cause: a network that was specified from assumptions instead of measurements.
Dead spots that move
Coverage that works in the morning and fails when the racking is full, the shutter is down or the yard is busy. Almost always a design that was drawn from a floorplan rather than measured in the building.
Enough signal, not enough capacity
Full bars and nothing loads. Signal strength and capacity are different problems, and adding more access points to a capacity problem usually makes it worse.
Kit that was never commissioned properly
Good hardware on default settings — every radio at full power, channels overlapping, roaming thresholds untouched. The equipment isn't the fault.
Nobody can say what's actually wrong
Two suppliers, two opinions, no data. A survey replaces the argument with a measurement you can act on and hold someone to.
Three of those four are capacity or configuration problems wearing a coverage costume — which is why the standard remedy of adding more access points so often makes them measurably worse.
Wi-Fi is the whole business
Not a line on a services list. Surveys, design, installation, troubleshooting and support — and the cabling underneath all of it.
Wi-Fi surveys
Predictive, on-site, validation and troubleshooting surveys — run on Ekahau, delivered as a report you can build from.
Read moreWi-Fi design
Access point placement, channel and power plan, capacity modelling, roaming and segregation — designed from the measured data.
Read moreWi-Fi installation
Our own installation teams. Containment, cabling, mounting, commissioning — and a validation survey at the end.
Read moreTroubleshooting
An existing network that underperforms. We find the cause, prove it, and tell you what it takes to fix it.
Read moreManaged Wi-Fi
Monitoring, remote and on-site support, firmware and licence management, and an annual RF health check.
Read moreStructured cabling
Cat6A and fibre installed, tested and certified by the same people who designed the network.
Read moreWhat a survey actually looks like
Not a laptop walk-round with a free app. A real access point on a tripod at ceiling height, moved position by position through the building, with every reading recorded against a scaled plan.
How a survey runs
Four stages. You get something usable at the end of each one.
Scope
A short conversation about the building, what's failing and what has to work. No charge, and often enough to tell you which survey you actually need.
Survey
We measure. On-site with Ekahau where the building exists, predictive from plans where it doesn't — and both where you're extending.
Design & report
A written design: access point positions, mounting details, channel and power plan, cabling and containment schedule, and a costed kit list.
Install & validate
Our teams install it, and we come back and survey it again. The validation survey is what turns a promise into evidence.
You should know what you're buying before you buy it
Most people commissioning a Wi-Fi survey have never seen one. That's a strange thing to ask somebody to spend money on, so here's exactly what lands in your inbox.
See a real survey report- Coverage plots for every floor at the signal levels your devices actually need, not a single generous threshold
- Access point positions with mounting heights, orientation and fixing detail — enough for an installer to work from
- A channel and transmit-power plan, including how it behaves alongside the networks next door
- Capacity modelling against real device counts, not an average per square metre
- The cabling and containment schedule, so the install can be priced properly rather than discovered on site
- A kit list with part numbers, so you can compare quotes on equal terms
The specialists who install their own designs
The Wi-Fi market splits in two, and neither half is complete. There are specialists who survey and design well, then hand the physical work to whoever the client can find. And there are firms who can install at scale but treat a survey as a way of getting through the door — some of the biggest don't have a Wi-Fi survey page at all.
Every project in this market gets passed between those two halves. That hand-off is where it slips: the access points are specified, and then nobody owns the containment run, the power at high level, the access equipment or the working-at-height method statement. Dates move, scope gets argued over, and the coverage you were promised arrives late or not at all.
We do both halves. The RF survey, the design, the containment, the cabling, the install, the commissioning and the validation survey that proves it — our people, one programme, one number to ring when something isn't right.
- Survey-led. No design leaves here without measurements behind it.
- Vendor-independent. We specify what the building needs, not what we hold stock of.
- Cabling in house. Containment, Cat6A, fibre — tested and certified by the same team.
- Validated on completion. We re-survey after installation and give you the evidence.
- Group-backed. Access to a broader range of engineers and installers when a project needs more hands on site.
- Commercial only. We don't do home broadband, and we don't pretend to.
Every building fails in its own way
Racking, ceiling height, wall construction, device mix and how the space is used all change the RF problem. These are the environments we're in most often.
Warehouse & Logistics
Racking, aisles, scanners and AGVs
Offices
Density, glass, plasterboard and video calls
Schools & Education
A class of devices in every room
Hospitality & Hotels
Guest Wi-Fi that doesn't generate complaints
Care Settings
Coexistence with nurse-call and telecare
Managed Property
Multi-tenant buildings and common parts
Marinas & Waterside
RF over water, salt and outdoor power
Events & Venues
High density, short notice, one chance
Retail
Scanners, EPOS and customer Wi-Fi
Sites where the coverage had to be right
Three environments that punish a guessed design: a live events estate, a working marina, and a warehouse full of steel.
Dallas Burston Polo Club
Over a thousand people online at once, across multiple buildings and open ground, on an estate that fills and empties in a day.
Read the case studyBeaulieu Enterprises
A five Gold Anchor marina where the coverage has to reach out over water, survive salt air, and serve staff, berth holders and visitors on one infrastructure.
Read the case studyMagic Madhouse
Dense racking, a growing pick operation, and handheld scanners that had to hold their connection down every aisle.
Read the case studyProcurement-ready before the first site visit
Held through The Specialist Electrical Group, and available to every SEGwifi project — the safety and procurement approvals most Wi-Fi companies simply don't carry.
- CHAS
- Constructionline Gold
- SafeContractor
- TrustMark
Accreditations are held by The Specialist Electrical Group Ltd. We do not claim Cyber Essentials or ISO 27001 — see About SEGwifi.
Vendor-independent by design
We specify what the survey data says the building needs. These are the platforms we work with most often — the survey comes first, the badge on the access point comes second.
Straight answers
What exactly is a Wi-Fi survey?
A measurement of how radio behaves in your building, turned into a design. We either model it from your floorplans (predictive) or measure it in the building itself with survey-grade tooling (on-site) — usually both on a project of any size. You get coverage plots, access point positions, a channel and power plan, a cabling schedule and a costed kit list.
It is not a sales visit with a phone app. Here's what's involved.
How much does it cost?
It depends on floor area, ceiling height, how many floors, how much of the site is outdoors, how dense the racking is, and whether you need validation afterwards. Those are the things that move the number, and we'd rather explain them than quote blind. We've set out what drives the price.
Do you install as well, or just survey?
Both, and that's the point. Most Wi-Fi companies survey and design, then hand the physical work to somebody else. We keep it in house — the survey, the design, the containment, the cabling, the mounting, the commissioning and the validation survey at the end. One team, one point of responsibility.
Will you work with the kit we've already got?
Usually yes. A lot of what we're called in to fix is good hardware that was never commissioned properly. If the equipment can do the job we'll say so and re-engineer around it. If it genuinely can't, we'll show you the measurements that prove it rather than asking you to take our word for it.
How long does a survey take?
A single-floor office is often a day on site and a few days to produce the report. A large distribution centre or a multi-building estate takes longer, and outdoor coverage adds time. We'll give you a timescale before you commit, not after.
Three specialists. One group behind them.
Each company does one thing properly. Between them the group covers the network, the security systems and the electrical infrastructure a commercial building runs on — which means a broader range of engineers and installers behind every project, and no scrambling for a subcontractor when a job needs more hands.
The Specialist Electrical Group — electrical installation, compliance and maintenance.
Managed IT, cyber security, connectivity and building security systems.
Commercial Wi-Fi surveys, design, installation and support.You are hereLet's find out what your Wi-Fi is actually doing.
Book a survey and you get measured data, a design you can build to, and a number you can budget against — not an opinion.