What we measure

Nine layers, and what each one actually tells you

Every layer below is included in a Full Survey. Each one is measured with calibrated instruments, tagged to a position in your 3D model, and written up in language you can act on.

Layer 01

3D digital model of the home

A dimensioned model of your home that every other measurement is registered against.

We scan the interior and produce a dimensioned 3D model and floor plan. This is the backbone of the whole survey: every reading we take is tagged to a real position in the model, so a number is never just a number on a clipboard — it sits in the corner of the room where we measured it. The model is also what makes the report useful a year later, when you are planning a renovation or moving a bed.

Instrument

LiDAR scanner + photogrammetry

In your report

Navigable 3D model, room-by-room floor plan, dimensions

Questions this answers

Where exactly was each reading taken?
What are the real dimensions of every room?
How do measurements change as I move through the space?

Layer 02

RF spectrum map by room

Broadband and per-band radio-frequency levels, mapped room by room and traced to their sources.

We sweep the radio spectrum in every room and separate what we find by band — cellular, Wi-Fi 2.4 and 5 GHz, smart-meter and utility telemetry, DECT, Bluetooth, broadcast. You get levels in µW/m² and V/m, compared against the usual reference limits, plus the part most reports skip: which source each contribution actually came from, and whether it originates inside or outside your walls.

Instrument

Calibrated spectrum analyser, 9 kHz – 8 GHz

In your report

Per-room heat map, band breakdown, source attribution

Questions this answers

Which rooms are quietest, and which are not?
Is this coming from my own equipment or from outside?
What changes if I move the router or switch a device to ethernet?

Layer 03

Magnetic field map

Low-frequency magnetic and electric field mapping around wiring, panels and appliances.

Power wiring, service panels, transformers and some appliances produce low-frequency magnetic fields that fall off sharply with distance. We map them in three axes and measure the falloff, so a hotspot behind a wall becomes a concrete fact: how strong, how far it reaches, and whether the bed, desk or cot on the other side of that wall sits inside it.

Instrument

Three-axis ELF gauss meter, 30 – 2000 Hz

In your report

Field map with distance falloff curves per hotspot

Questions this answers

Is there a hotspot near where someone sleeps or works?
How far away do I need to be before it drops to background?
Is this wiring, an appliance, or something in the utility room?

Layer 04

Thermal imaging report

Full-envelope infrared survey showing where your home leaks heat and where it holds it.

We image every exterior wall, ceiling plane, window and door under a temperature differential. The result shows missing or slumped insulation, thermal bridges, draught paths around frames and service penetrations, and underfloor heating layouts. Each finding is annotated with a temperature delta so you can rank the fixes by how much they are actually costing you.

Instrument

640×480 radiometric thermal camera

In your report

Annotated thermal images per elevation and room

Questions this answers

Where is the heat going in winter — and coming in during summer?
Which of these fixes is worth doing first?
Is the insulation where the previous owner said it was?

Layer 05

Air quality analysis

Particulates, CO₂, VOCs, humidity and temperature logged over time, not sampled once.

Single-point air readings tell you almost nothing, so we leave logging sensors in the rooms that matter for a full day-and-night cycle. You see PM2.5 and PM10, CO₂, total VOCs, temperature and relative humidity as curves — cooking spikes, the overnight CO₂ climb in a closed bedroom, how fast the room recovers. We run a CO₂ decay test to estimate real air-change rates rather than quoting the ones on the ventilation spec sheet.

Instrument

Multi-sensor loggers, 24–72 h deployment

In your report

Time-series per room, ventilation assessment, CO₂ decay test

Questions this answers

Does the bedroom get stuffy overnight, and by how much?
Is the extractor fan actually moving air?
Where are the particulates coming from?

Layer 06

Moisture and insulation observations

Damp risk and insulation gaps, read from the thermal survey and confirmed with meters.

Cold surfaces plus humid air is how mould starts, and the thermal survey shows us exactly which surfaces run cold. We follow up on every suspect area with moisture meters and compare surface temperatures against the dew point in that room, so you get an early-warning map rather than a diagnosis after the staining appears.

Instrument

Thermal camera + pin/pinless moisture meters, hygrometry

In your report

Risk map, surface vs. dew point analysis, photo evidence

Questions this answers

Which surfaces are at risk of condensation this winter?
Is that patch actually damp, or just cold?
Is this a ventilation problem or a fabric problem?

Layer 07

Noise map

Sound levels and frequency content by room, day and night, including low-frequency hum.

We measure ambient levels in each room across the day and overnight, and keep the frequency content rather than collapsing everything to one number. That matters because the complaints people actually have — traffic rumble, a neighbour's heat pump, a transformer hum, footfall through a floor — live in specific bands. We also note reverberation in the rooms you use for calls or music.

Instrument

Class 2 sound level meter + long-term loggers

In your report

dB(A)/dB(C) map, spectra, night-time percentile levels

Questions this answers

Why does this room feel loud when the meter says it is fine?
What is that hum, and which direction is it coming from?
Which window or wall is letting the traffic in?

Layer 08

Natural light distribution

Daylight levels, glare and seasonal sun paths modelled through your actual geometry.

We take a lux grid through each room and combine it with a sun-path model built from the 3D scan and your site orientation, including the buildings and trees that overshadow you. The output shows daylight factor by room, how the useful light moves through the day, which desks will fight glare, and which corners need artificial light even at noon in June.

Instrument

Lux meter grid + solar path model from the 3D scan

In your report

Daylight factor map, seasonal sun-path study, glare notes

Questions this answers

Where should the desk, the cot, or the plants go?
How dark does this room get in December?
Is that window worth enlarging?

Layer 09

Clear recommendations

A ranked action list with effort, cost band and expected effect — and nothing to buy from us.

Every finding ends in something you can do. Actions are ranked by effect against effort and sorted into three buckets — free changes you can make this afternoon, cheap fixes under a few hundred, and projects worth planning properly. Where the honest answer is 'this is already fine, leave it alone', we say that. We do not sell shielding, filters, paint, meters or remediation work, and we take no commission from anyone who does.

Instrument

Human analysis, reviewed by a second surveyor

In your report

Ranked actions: free / cheap / project, with expected effect

Questions this answers

What should I actually do first?
What is genuinely not worth spending money on?
Who do I call, and what do I ask them for?

See how these layers come together in the report

Find out what your home is actually doing.

Start with a free 20-minute scoping call. We will tell you honestly whether a survey will help — including when it will not.

Book a scoping call See pricing