We find out why your building is failing. Then we fix it.
Damp walls, black mould, cold rooms, failed HMO inspections. A building surveyor works out the cause, and the Smart Environment Group team carries out the work, from a new extractor fan to a full refurbishment.
What you can see is rarely the actual problem
Most damp and mould is treated at the surface and comes straight back. We diagnose the cause first, so the fix lasts.
Windows streaming every morning
Moisture from breathing, cooking and drying clothes meeting glass colder than the air's dew point, around 12°C in a normal home.
Measure humidity, then fit the right extraction or positive input ventilation. Ask about this
Black mould in corners and behind furniture
Cold bridging where walls meet ceilings and floors, plus air that never moves.
Thermal survey, treat the mould, fix the cold spot and the airflow behind it. Ask about this
Damp patches low on the walls
Often bridged damp courses, high outside ground levels or leaking pipes. True rising damp is less common than it is sold as.
Diagnose before injecting anything. Repair the actual source. Ask about this
HMO licence conditions or a failed inspection
Fire doors, alarm systems, room sizes, ventilation and amenity standards that have moved on since the property was converted.
Compliance check against your council's conditions, then the works to close every item. Ask about this
Repairs that keep coming back
Patching symptoms across a property or portfolio instead of planning maintenance.
Planned and reactive maintenance for landlords and agents, one point of contact. Ask about this
Planning a refurbishment, conversion or extension
Getting ventilation, insulation and fire safety right at design stage costs a fraction of fixing them later.
Design input, full construction and refurbishment delivered by our own team. Ask about this
From a single survey to a full build
One company from diagnosis to completion, so nothing gets lost between the report and the work.
Surveys and compliance
For landlords, agents and housing providers
- Damp and mould surveys
- Thermal imaging
- HMO compliance checks
- Fire safety upgrades
- Awaab's Law readiness
Damp and ventilation
For homes and rented property
- Extractor fans and humidistats
- Positive input ventilation
- Trickle vents and airflow
- Mould treatment
- Cold bridge insulation
Maintenance
Planned and reactive
- Landlord and portfolio repairs
- Plumbing and electrical
- Intercoms and access control
- Gates and locks
- End of tenancy works
Refurbishment and construction
Delivered by our own team
- Full refurbishments
- HMO conversions
- Extensions and loft conversions
- Kitchens and bathrooms
- Structural and groundworks
How it works
You deal with the same people from the first message to the finished job.
Tell us what's happening
Use the form below. Photos of the problem help us a lot.
We find the cause
A surveyor reviews it and, where needed, visits with moisture meters and a thermal camera.
You get a clear quote
What's wrong, what fixes it and what it costs, in writing.
Our team does the work
Carried out by Smart Environment Group and checked when it's finished.
The physics, in under a minute
Two people sleeping breathe out about half a litre of water overnight. It has to go somewhere, and it goes to the coldest surface in the room.
We publish short explainers on damp, ventilation and building safety on YouTube and Instagram as House Physics.
Free photo assessment
Send a photo and a short description. A surveyor reviews it free of charge and replies with what we think is causing it and the next steps. It helps if you include:
- Where the problem is and how long you've had it
- A photo or two
- Whether it's your home, a rental or an HMO