Student house hunting happens at the best time of year for spotting damp. However, almost nobody uses that advantage. Viewings run from November through February, when condensation peaks and penetrating damp appears after storms.
A cold, unheated back bedroom can reveal a problem within thirty seconds. During viewing season, a landlord who knows about a problem also has a strong reason to hide it. Fresh paint, a wardrobe moved in front of a stain, or an air freshener can hide warning signs.
These tactics can distract a group focused mainly on whether the kitchen fits everyone. This guide explains what to check at a viewing and how to spot a cover up. It also covers what to do after signing and how joint tenants can agree on the next step.
Why Student Houses Suffer More Than Most
The student rental market concentrates several risk factors in the same buildings. Start with the housing stock. Much of it consists of Victorian and Edwardian terraces.
These homes may have solid walls, no cavity insulation, old windows, and no effective damp proof course. Solid walls run colder and wetter than modern cavity construction. This explains why the same weather can affect two properties differently.
Occupancy density does the rest. Six or seven people generate more moisture than the ventilation in a family home was designed to handle.
Bedrooms also serve as living rooms and offices, while doors stay shut for privacy. Each room can become humid and poorly ventilated. Maintenance slips too.
Student properties turn over annually, and agents may fill them before anyone inspects them. Tenants rarely stay long enough to see a seasonal problem through to repair. Gutters go uncleared, extractor fans fail quietly, and small defects accumulate.
Shared bills can also lead to cold houses. Mould then grows on surfaces that might stay dry at 18 degrees.
What to Check at a Viewing
You will have twenty minutes and five people with you, so split the list. Our fuller guide to spotting damp at a property viewing is worth reading before you go.
Use your nose first
Walk in and notice the smell before anyone starts talking. A musty, earthy odour gives you the most reliable single indicator there is, because you can smell mould that nobody can see. If the hallway smells of air freshener, that tells you something too.
Check the corners and the ceiling line
Check the top corners of external bedroom walls, the ceiling junctions, and the areas around windows. Black spot mould in those places means condensation and inadequate ventilation.
Look behind and under the furniture
Ask to move the wardrobe or the bed away from the external wall, and expect a reasonable landlord to agree. Furniture pressed against a cold wall creates an ideal place for hidden mould. It can also conceal an existing patch.
Test the windows
Open every window in every room. Painted shut sashes, missing keys, and broken catches all matter. A bedroom that nobody can ventilate may develop mould by February.
Check for trickle vents along the top of the frames and make sure they open. Look for condensation or black mould around the glazing and seals.
Test the extractor fans
Hold a sheet of tissue paper against the bathroom and kitchen grilles while they run. If the paper does not hold, the fan is not extracting properly. Remember that mould can appear even where a fan is fitted if it is too small.
Check the bottom metre of ground floor walls
Look for a tide mark, blown or bubbling plaster, lifting skirting boards or white powdery salts. Press gently on skirting boards and any timber near the floor, because soft or spongy timber means the wall has stayed wet for a long time.
Walk round the outside
Check gutters for plant growth, sagging, or visible gaps. Look for stains below the gutter and ground levels, paths, or raised beds sitting high against the wall. Look for air bricks that are missing or blocked while you are out there.
Green algae on one strip of brickwork usually means water has been running down it. Then ask three questions.
Has the property had damp or mould in the last two years? If so, what did they do about it? When did anyone last clear the gutters?
What is the EPC rating? Rented properties in England and Wales normally need at least an E. Poor insulation can make a house cold, expensive to heat, and prone to damp.
How Landlords Cover Damp Up
None of these proves anything alone. Two or three together should make you look harder.
One wall painted and the others not
Fresh paint on a single wall, particularly a chimney breast or an external wall, is the most common cover up there is.
A newly boxed in corner or a new section of plasterboard
Boxing hides staining and blown plaster, and it hides the evidence a surveyor would use.
Furniture in an odd position
Examples include a wardrobe across a corner or drawers in front of a chimney breast. A bed against an external wall can also hide damp.
Plug in air fresheners, especially in hallways and bedrooms
Strong scent masks a musty smell far more often than it decorates.
New silicone around a bath or shower with old tiles
Recent resealing suggests a recent leak.
A rug in a strange place, or new carpet in one room only
Both cover staining or damp flooring.
Windows open in cold weather during a viewing
Airing a property before a viewing is legitimate. However, it can also clear a musty smell for an hour. Photograph anything you are unsure about at the viewing rather than trying to remember it later.
If You Have Already Signed
Most students find damp after moving in, and the first month decides how the rest goes.
Photograph everything immediately
Take photographs at check in before you unpack. Make sure the inventory records any existing damp, mould, or staining. If the inventory misses it, write to the agent within the inventory dispute period and attach your photographs. That single step protects your deposit ten months later.
Report it in writing straight away
Email or the agent’s portal, not a phone call. A written report puts the landlord on notice. Landlords generally become responsible for repairs once they know about a problem. The date of your first report therefore anchors everything else.
Keep a file
Keep every message and reply in date order. Save dated photographs and notes showing who said what during verbal conversations.
Do not stop paying rent
Withholding rent puts you in arrears whatever the landlord has failed to do, and rent arrears remains a mandatory ground for possession.
Know where you stand
Our renter’s guide to damp and mould sets out your rights, and Awaab’s Law shows the direction the law is moving.
Escalate to the council if nothing happens
The Housing Health and Safety Rating System treats damp and mould as hazards. Your council’s environmental health team can inspect the property and require action. Your students’ union advice service or university accommodation office can help you do this and will often contact the landlord first.
Who Is Responsible for What
Section 11 of the Landlord and Tenant Act 1985 covers the structure, exterior, water, heating, and sanitation. This includes roofs, walls, windows, gutters, downpipes, plumbing, and the heating system. The Homes (Fitness for Human Habitation) Act 2018 requires the property to remain fit throughout the tenancy.
Serious damp or mould can make a home unfit. Tenants may take a landlord to court directly under the Act.
In practice, the landlord handles leaks, blocked gutters, broken extractors, faulty windows, inadequate heating, missing insulation, and structural damp. Tenants must use the property reasonably. This includes ventilating during cooking and showering, using extractors, heating sensibly, keeping vents clear, and reporting problems in writing.
Landlords frequently attribute all damp to tenant behaviour. The Housing Ombudsman criticised that assumption in its report “Damp and mould: it’s not lifestyle”. A property still needs enough ventilation, heating, and weather protection for normal living.
The Group Problem: Joint Tenancies
This is what actually derails student damp complaints, and no guidance covers it. Most student houses use a joint and several tenancy. This means everyone shares responsibility for the full rent and all tenancy obligations.
One person’s decision affects everyone, which has three practical consequences. Nominate one person to communicate. Six separate email chains can confuse the issue.
They may also let the landlord claim that nobody reported it clearly. Choose one person to send every message and copy the others. This creates a clear chain of evidence. Agree what you want before you ask for it.
Agree whether you want the extractor fixed, the mould cleaned, or a rent reduction. An unclear request may delay every option. Write down the specific repairs you want and the date you want them by.
And do not let one housemate decide to withhold rent. Joint and several liability makes those arrears everyone’s responsibility. Possession proceedings can affect the whole house.
If someone is threatening it, get advice from your students’ union first. Damp may affect only one bedroom, but the whole group still shares the tenancy obligations. The affected tenant also needs everyone’s support to escalate the problem. Agree early that you will back each other, because otherwise one person quietly lives with mould for eight months.
Deposits and the End of the Year
Damp turns into a financial issue in June, when the deductions arrive. A government approved scheme must protect deposits in England and Wales. Each scheme offers free dispute resolution based on the evidence.
A landlord cannot deduct for fair wear and tear. They also cannot charge tenants for damage caused by a property defect.
Mould may result from a failed extractor, overflowing gutter, faulty window, or structural damp. Damage from these defects should not become a tenant deduction. Mould left to spread for eight months without anyone reporting it puts you in a weaker position.
Your check in photographs, your written reports and the landlord’s replies decide it. Assemble them before you move out rather than after the deduction arrives.
When the House Needs Someone Who Knows What They Are Looking At
You can settle some issues between yourselves. Others need an independent damp survey, especially when the landlord blames your habits but the evidence points elsewhere. Warning signs include recurring mould, a defined wet patch, tide marks, crumbling plaster, white salts, soft floors, and unexplained smells.
Damp that worsens after rain also points towards the building. A survey can turn your account into evidence for environmental health or a deposit dispute. Act sooner if anyone has asthma, allergies, or a respiratory condition.
What a Damp Survey Should Include
A proper survey maps moisture across the walls instead of relying on one reading. It logs temperature and humidity to assess condensation. It also inspects gutters, the roofline, external walls, and ground levels.
Thermal imaging can reveal hidden moisture, while plaster tests can detect salts. The conclusion should separate building defects from environmental causes. A deposit adjudicator or environmental health officer needs that distinction in writing.
Nordic Damp Proofing covers Southampton, Dorset, Hampshire, and the south of england & Wales. See all the areas we cover…
Landlords and agents can look at Damp Surveys, Mould Remediation and Damp Proofing Services. Quotes cost nothing and 25 year guarantees cover qualifying remedial work. Before signing, open the windows, move the furniture, and walk around the outside.
Twenty minutes of checking can prevent months of problems. If you find something unexplained, book a survey.
We Find It. We Treat It. We Stop It Coming Back.
View in winter, photograph the property at check in, report problems in writing, and keep every reply. That sequence protects the house, the deposit and everyone in it.
