How it works
Three calibrated sensors. Fourteen days of continuous data. One court-ready report. Maple Diagnostics turns a damp or mould complaint into a defensible position — without installers, without guesswork, and for less than the cost of one solicitor's letter.
The process
Choose your tier online. The kit is dispatched same day via tracked next-day delivery for orders placed before 2 pm. No account setup — just order and wait for the box.
Place sensors in the affected rooms. No installer, no drilling, no WiFi. Sensors run on AA batteries and log data locally. A tenant can deploy them unassisted in under 10 minutes.
Sensors record humidity, temperature, and surface temperature every minute for the full monitoring window. Data is stored on the device — not transmitted — ensuring tamper-evident continuity.
Return the kit (prepaid label included). We upload the data and generate your court-ready PDF within 24 hours. Download, attach to your response, and case closed.
The kit
The kit is designed to require no technical knowledge. A tenant can deploy it unassisted. Sensors run on built-in battery and store data locally — no WiFi required.
S1
Bedroom — affected room
74% RH
humidity
17.2°C
temp
S2
Living room — control room
52% RH
humidity
20.1°C
temp
S3
Bathroom — moisture source
81% RH
humidity
18.6°C
temp
Live sensor readings during monitoring window
The science
Three variables. Continuously logged. Together they answer the one question every landlord, solicitor, and Ombudsman needs answered: is this damp structural or condensation?
The analysis
The analysis engine correlates all three sensor streams to calculate the Building Moisture Index (BMI) and identify dew-point crossings. Results are mapped against established thresholds from UK building research. The output is one of two classifications — each with a documented evidence trail.
The deliverable
Return the kit using the prepaid label. We process the data and generate your report within 24 hours of receiving it. The PDF is downloadable from your account and ready to attach to any legal correspondence.
Formatted for use in disrepair proceedings, Pre-Action Protocol exchanges, Housing Ombudsman submissions, and expert witness bundles. Includes a clear cause classification, detailed evidence summary, and a comprehensive data appendix.
Every sensor reading for all 14 days, date- and time-stamped to the minute. Tamper-evident and exportable. The Housing Ombudsman expects proper case records — timestamped data provides a complete, auditable trail.
A clear determination of probable cause with threshold evidence cited. Reproducible, scientifically documented, and aligned with damp assessment practice.
Included in the Professional tier. Pre-formatted to meet the written findings requirements under Awaab's Law (social housing) — hazard identified, proposed action, and target timescales for beginning and completing works.
Legal alignment
Every element of the Maple process maps to a specific legal requirement. The report is not a general survey — it is structured to answer the exact questions that arise under each statute.
Investigation must be completed within 10 working days of a damp or mould complaint (social housing — registered providers)
Same-day kit dispatch means monitoring begins the day the complaint is logged. The monitoring lasts 10 calendar days, ensuring the investigation window is met even with weekends and bank holidays.
Written findings must be issued within 3 working days of investigation completion (social housing — registered providers)
Professional report includes a pre-formatted written findings template ready to issue
Objective, timestamped evidence to distinguish structural cause from condensation
All reports contain minute-level timestamped sensor data providing an auditable evidence trail for Ombudsman submissions
Landlord's repairing obligation covers structure and exterior — objective evidence of cause (structural defect vs. condensation) is central to defending or settling a disrepair claim
Classification report provides objective structural vs. condensation determination admissible in proceedings
Evidence to challenge or support a council hazard score under the Housing Health and Safety Rating System
Disclosure-ready PDF is admissible in HHSRS appeal proceedings and used by surveyors as supporting evidence
Who uses Maple
Private landlord
Tenant has reported damp. You need evidence before a solicitor gets involved.
Social landlord / HA
Awaab's Law complaint received. 10-day investigation clock is running.
Letting agent
Managing a disputed property. Client - social landlord - needs written findings within 3 days. Private landlord needs a clear, documented cause determination to resolve the complaint and avoid escalation to proceedings.
Surveyor
Enhancing a damp survey with continuous data to make findings court-proof.
Ongoing diagnostics
See compliance state for every unit across your portfolio after uploading the data. Drill into any flat to view active cases, milestone deadlines, and full audit history.
Order your compliance kitPricing, extensions, admissibility, Awaab's Law deadlines — it's all covered.
Day 1 begins tomorrow. The investigation must complete by working-day 10.