WiFi surveys · United Kingdom · Europe/London
WiFi site survey in London.
London offices range from Canary Wharf towers to older central buildings with thick walls and protected interiors. Deploris sends a vetted local engineer from its network to survey your London site with Ekahau tools, then delivers heatmaps, an access point plan and a written report your team can act on.
Last reviewed November 2026. No lock-in contracts.
London at a glance
- Predictive, on-site and validation surveys
- Ekahau survey tools and project files
- Heatmaps, access point plan and bill of materials
- Quote and scope in writing, no lock-in
Quick answer
What is a WiFi site survey in London?
A WiFi site survey in London measures or models how wireless signal behaves in your building so access points can be placed correctly. We run predictive surveys from floor plans, on-site surveys that measure real signal and interference, and validation surveys after installation. You receive heatmaps, access point locations and mounting guidance, and a written summary.
SCOPE
What a WiFi survey covers in London.
The survey type depends on whether the building exists, whether a network is already installed, and how much certainty you need before spending on equipment.
Predictive surveys
- Floor plan import and scale check
- Wall, floor and glass materials modelled in the planning tool
- Estimated access point count, positions and channels
- Early budget numbers before you buy hardware
On-site surveys
- Walk of every area with calibrated survey equipment
- Signal strength, signal to noise ratio and channel overlap measured
- Interference from neighbouring networks and non-WiFi sources recorded
- Access point on a stick tests to confirm planned positions
Validation after installation
- Coverage checked against the agreed design targets
- Roaming behaviour checked while walking key routes
- Dead zones and weak areas flagged with photos
- Fixes listed with the access point and location to change
Reporting
- Heatmaps for signal strength, signal to noise and channel use
- Access point locations, mounting heights and antenna orientation
- Bill of materials for access points, cabling and mounts
- Executive summary with prioritized recommendations
OPTIONS
Which survey fits your building.
Predictive survey
Modelled from drawings. Best for new builds, fit-outs and early budgeting. It is fast but depends on accurate plans and material data.
On-site survey
Measured in the real building. Best for existing offices, warehouses and sites with difficult construction or interference.
Validation survey
Measured after installation to prove the network meets the design. Best for handover, audits and complaints about coverage.
Passive, active and AP-on-a-stick
On-site surveys can be passive (listening to what the network transmits), active (connected, measuring throughput and roaming) or AP-on-a-stick (a temporary access point to measure real signal loss). 6 GHz (Wi-Fi 6E and 7) coverage is scoped separately where it applies.
CONTEXT
Why London teams commission WiFi surveys.
Tall office buildings in the City and at Canary Wharf bring a particular mix of problems. Concrete cores, lift shafts and coated glass often shape how signal moves across a floor, and neighbouring tenants above, below and beside you run their own networks on the same channels. A plan that looks tidy on a drawing can struggle once it meets that interference, so measurement on the real floor is often the only reliable test. Older central buildings bring the opposite challenge: heavy masonry, high ceilings and, where a building is listed, limits on what can be fixed to walls and ceilings without consent.
Band planning is changing as well. Ofcom opened the lower 6 GHz band, 5925 to 6425 MHz, to licence-exempt indoor WiFi in 2020. Organisations replacing access points can now consider equipment that uses these channels alongside 2.4 and 5 GHz. A survey that measures 6 GHz as well as the older bands shows whether new hardware will deliver the extra capacity in practice, especially on dense floors, in meeting suites and in event spaces where many devices connect at once. The report states which bands were measured, so the result can be compared after installation.
London's IT estate is spread across very different kinds of building. Glass towers in the City and at Canary Wharf, the business district built on the former West India Docks on the Isle of Dogs, share the map with older central offices where listed status can limit alterations, as well as hospitals, schools and retail units across the outer boroughs. Most of these buildings are managed by someone other than the tenant, so a building manager, a booked goods lift and a set of contractor rules usually stand between the engineer and the work.
Data centre space gathers in a few areas rather than one. The Docklands in east London has long been densely built up with facilities, west London boroughs along the M4 corridor have drawn operators with their fibre routes, and Slough in Berkshire, just west of London, hosts a large cluster of data centres. The UK runs on Greenwich Mean Time in winter and British Summer Time in summer, which gives teams in the Americas and continental Europe a usable overlap with the London day. Deploris coordinates vetted local engineers from its network for companies run from elsewhere, with availability confirmed when the work is scoped.
PRICING
What drives the price.
We quote in writing per engagement. These are the factors that move the number.
- Floor area, number of floors and number of sites
- Survey type: predictive, on-site, validation or a combination
- Building complexity, such as warehouses, healthcare or dense construction
- Depth of reporting and whether you need the full bill of materials
- After-hours access, travel and any re-survey after installation
ACCESS
Getting access to your London site.
Surveys need the engineer to walk every area. Building rules in London can add steps, so we plan them with you first.
Building managers and RAMS
Managed office buildings in London commonly route contractors through the building manager, who may ask for a risk assessment and method statement, often called RAMS, before agreeing a date. HSE guidance notes that a method statement is not a legal requirement, but many landlords still expect one, so we confirm early whether the building wants one and agree who prepares it.
Permits and asbestos information
Ceiling, riser and hot work is often controlled by a permit to work issued by the building team. In older premises the dutyholder must tell contractors where any asbestos is, and areas that have not been inspected are treated as containing it. We ask for the asbestos register before work above ceilings is planned.
Vans, bays and charging zones
Goods lifts and loading bays are usually booked in slots, and parking near central buildings is limited. Vans that do not meet ULEZ standards pay a daily charge across all London boroughs, and the Congestion Charge applies inside its zone at set hours. We plan deliveries and travel around these rules rather than discovering them on the day.
What to send before the survey
- Floor plans in CAD, PDF or image form, with scale if known
- Site address, floors and the areas that must have coverage
- Device types, expected user counts and any high-density areas
- Applications that matter most, such as voice, video or scanners
- Existing wireless vendor, model and any current access point locations
- Access hours, escort needs and any safety or privacy restrictions
PROCESS
How a survey runs.
- 1
Scope the requirements
We agree the site, areas, device types and the survey type, and confirm the plans and access you will provide.
- 2
Plan the survey
The engineer prepares the project file, checks scale and materials, and books access with your site contact.
- 3
Survey the building
The engineer models or measures coverage area by area and records interference, obstructions and mounting options.
- 4
Analyze the results
Measurements are checked against your targets and access point positions are adjusted until the design meets them.
- 5
Deliver the report
You receive heatmaps, the placement plan, a bill of materials and the project file, with a walkthrough of the findings.
RELATED
Related services and examples.
The case studies are representative scenarios, not named clients.
FAQ
WiFi site survey in London: frequently asked questions.
Should a WiFi survey in London include the 6 GHz band?
Can you survey a London office floor in the City or Canary Wharf during working hours?
What if our London office is in a listed building?
What is the difference between a predictive and an on-site WiFi survey in London?
Which tools do you use for WiFi surveys?
Do you need access to the whole building?
Can you survey after the access points are installed?
Can we survey with a free WiFi app instead?
How much does a WiFi survey cost in London?
ELSEWHERE
WiFi Surveys (Ekahau) in other cities.
NEARBY
Other covered metros in United Kingdom.
QUOTE
Request a WiFi site survey in London.
Share a few details and we will come back with the next steps.
Get started
Planning WiFi in London? Send us the floor plans.
Tell us the sites, the scope and the timeline. We reply with a written plan.