My rented home has mould, a noisy neighbour or a rent rise — what can I actually do?

Three pages in this library are about a problem in a rented home that does not go away by itself. The mould comes back until the damp goes is the black spots that return after you scrub them. Your neighbour may not know how loud it is is the barking dog or the noise through the wall. Ask for lower rent with the cheaper listings in hand is the renewal letter with a bigger number on it. Each says where its own advice stops, and each says the rules differ by place.

Mould: never mix bleach with anything but water, and fix the water that feeds it. The mould page puts two things before anything else. Never mix bleach with anything but water: not with ammonia, not with vinegar or other acids, not with other cleaners, and not in a paste; some of these mixtures give off a poisonous gas. Open a window, wear rubber gloves and eye protection, and if you can, an N95 mask. One person warns not to spray bleach as a fine mist, because breathing it in can injure your lungs. If you have mixed cleaners and feel short of breath or your eyes and throat burn, get into fresh air and call 911 in the United States, 999 in the UK or your local emergency number elsewhere; for advice, US Poison Help is 1-800-222-1222 and in the UK you can call NHS 111. And the page names who may be better off not cleaning it: the CDC says people with asthma or a mould allergy can react badly, and people with weakened immune systems or long-term lung disease can get lung infections from mould; England’s guidance adds children, older people and pregnant women. If that is you or someone in your home, think twice about being the one who cleans it, and if anyone has symptoms, such as a stuffy nose, a sore throat, coughing or wheezing, sore eyes or a rash, it is worth asking a doctor.

Then the reason it comes back. Mould needs water, and the US Environmental Protection Agency says that if you clean up the mould but do not fix the water problem, the mould will most likely come back. The EPA’s numbers to aim at: indoor humidity between 30 and 50 per cent where you can, never above 60, and anything that gets wet dried within 24 to 48 hours. In a bathroom that means the fan or the window after every shower, and a quick wipe of the tiles and the seal. On what to clean with, the page carries an argument and the question that settles it, how porous the surface is: a mycologist on the page says bleach is effective on a non-porous surface, or on a porous thing that can be fully soaked, and fails on dry porous material it cannot reach into. The US CDC says a bleach solution of no more than one cup of household bleach to a gallon of water, with the windows open; the EPA says hard surfaces can be scrubbed with detergent and water and dried completely. Mould growing under the silicone round a bath or shower means the seal has failed and water is getting behind it; cleaning the top will not reach it, and the fix is to remove the old caulk, dry the area and caulk again; the page does not cover how to do that. The EPA says not to paint or caulk over mouldy surfaces. For the paste of bleach and baking soda going round, the page’s rule is that when the safe answer costs nothing, take it: bleach and water only, or no bleach at all.

The EPA’s line for doing it yourself is size: a patch under about 10 square feet, roughly three feet by three, you can usually handle. Bigger than that, or after a lot of water damage, it points you to its guide for larger clean-ups; if the water was sewage or other contaminated water, call in a professional; and if you think mould is in your heating or air-conditioning system, do not run it, because it can spread mould through the building.

Whose job the damp is. If you rent, the mould page says the damp may not be yours to fix. In England, the government’s guidance to landlords says it is “totally unreasonable to blame damp and mould in the home on lifestyle choices”, names the causes as problems with the building, poor ventilation, inadequate heating and poor energy efficiency, and says landlords should find and fix the cause, not just the visible mould. It also says tenants should report damp and mould to the landlord promptly. So report it in writing, with dated photos, and keep a copy. In the United States, what a landlord must do about mould depends on your state and city, and the page cannot tell you your local rule. The ventilation and drying are still worth doing in the meantime, because they slow it down whoever is responsible.

Noise: if the neighbour is not hostile and nobody is in danger, tell them once, plainly and kindly. Your neighbour may not know how loud it is starts from one person’s reading of a neighbour’s barking dogs: the dogs barked all day while the owner was out and were quiet when the owner was home, so the one person who could fix it had probably never heard it. The page’s counsel is to tell them once, before you complain to anyone else, because they may not know. Speak to them, or leave a short note that says what the problem is and asks for one change. Some people warn that a friendly message can still read as a threat if it hints at punishment; one suggested wording hinted at formal complaints, and the advice back was to cut that line. Before you knock, be sure it is the dog you think it is: one person describes the wrong dog being blamed because two barked at similar times.

Not everyone would knock at all. Some people say go straight to the landlord or management, animal control or the authorities, so you are not personally at risk; the page says what decides it is what kind of neighbour this is, friendly and unaware or hostile and aggressive, and how serious the problem is, a nuisance or a safety or legal matter. Some people say to start writing it down from the first day: the date, the time, how long it went on, and what happened, which is what a landlord, a council or the police will want to see. If telling them does not work, some people say the next door is the landlord, the property manager or the homeowners’ association, and after them the city or council; some people say to check your city’s or council’s own procedure before you call anyone. The edges people report: some towns will not take an anonymous complaint, a complaint about daytime noise may go nowhere, and police may tell you to sort it out yourselves or ask for proof. In England and Wales, the UK government’s guidance names the council as the place to report noise, including barking dogs, and says to try talking to your neighbour or mediation first; after that, the council has a duty to investigate noise that may be a statutory nuisance. If it finds one, it must issue a notice telling the person what to stop, and someone who breaks that notice over noise from their home can be fined up to £5,000.

While it goes on, some people’s point is to work on what reaches you: white noise, a fan, or headphones. The page does not pass on the high-pitched bark gadget as advice; the American Veterinary Society of Animal Behavior advises against training methods that work through discomfort, and lists noise meant to intimidate among the things to avoid. If the neighbour is abusive, rude or quick to escalate, the heads-up is the wrong tool, and some people say so: keep contact to a minimum, give no reaction, and let the landlord, the council or the police handle anything that needs enforcing. If you are threatened, or feel you are in danger, or you see a child in danger right now, call 911 in the US or 999 in the UK; elsewhere, your local emergency number.

The rent rise: ask only if you could really move, and bring listings for cheaper places nearby. Ask for lower rent with the cheaper listings in hand says the lever people point at is the believable chance that you will leave: an empty unit earns the landlord nothing and finding a new tenant costs time and money, so a reliable tenant who pays on time is worth something. Some people push back, and they are why the page starts with the market: where apartments fill the day they are listed, asking can mean being shown the door or losing the place to the next applicant. So look before you ask: how many units near you are advertised, how long the listings have been up, whether anyone is offering move-in specials. Decide honestly whether you would move if the answer is no; if you would not, ask only for smaller things, or leave it. Save two or three listings for similar places nearby that cost less; they are your reason, and they are checkable. Ask plainly, in person or in writing, and talk in yearly figures. Offer something back if you can, a longer lease or a move-in date that fills their gap. If the rent will not move, ask for something that costs the landlord less: parking, storage, or a waived fee.

Asking can make some landlords want to get rid of you, the page says, and it is fair to know that before you ask. What you can do if a landlord retaliates after a failed request, for example by refusing to renew, the page does not cover; whether that is allowed depends on where you live, and a tenant rights group or legal aid can tell you before you ask, not after. On big corporate landlords people split: some say prices come from pricing software or fixed company policy, and the person at the desk has no room to change them; others say a corporate landlord can still be moved if you bring hard data, such as how many units are empty and what comparable places nearby cost, or if you make it clear you will leave, because they still care how many of their units are filled. The page’s own suggestion is to ask the office whether they can change the price at all.

At renewal, put the old lease and the new one through a document-compare feature before you sign, and read every change it marks: a higher fee, a new charge, or a new clause that moves costs onto you. One person warns about an arbitration clause, which moves any dispute out of court and into a private process that can be expensive to use. And check what the law already decides: checked for the page in September 2026, three US states, California, Oregon and Washington, cap yearly rent increases by a formula on the rentals their laws cover, some cities elsewhere have their own limits, and some states forbid their cities from limiting rent at all. If you rent in England, the rules changed on 1 May 2026: the government’s guide for tenants says a landlord must put a price in every advert and cannot accept or encourage offers above it, can raise the rent only once a year and not in the first year of a tenancy, must give at least two months’ notice on the official form, and you can challenge an increase that is above the market rent.

Never simply stop paying. The rent page names one trap, and the mould page points to the same escrow page. The rent page says that if you want lower rent because something is broken or unsafe, that is not a negotiation, and one person is firm: never simply stop paying. Withholding rent is allowed only in some places and only by following your state’s process, and if you do it wrong the rent counts as unpaid and an eviction can follow. Call legal aid or a tenant rights group first; the rent page and the mould page both point to the library’s page When repairs stall, the rent can wait in escrow, about what some places allow when repairs are not done. The rent page adds that if a ceiling is coming down or mould is spreading, it is a safety problem before it is a rent problem, and one warning is not to keep living in that part of the home until a professional has looked at it. Free legal aid for civil problems in the United States is in the Resource Bank and cited below; it is usually based on income.

Who this is not for. The mould page is about small patches of household mould; it does not cover flood damage, mould from sewage, mould inside heating and air-conditioning ducts, or large areas, and on health it signposts only: if you have symptoms you think come from mould, talk to a doctor. The landlord guidance it quotes is England’s; elsewhere in the UK and in the United States the rules differ. The noise page says noise rules, quiet hours and complaint procedures are set locally and differ widely, and nothing on it tells you what counts as illegal noise where you live; its UK details are for England and Wales. The rent page is written mainly for the United States, where rent rules are set by states and cities and change often, and nothing on it is legal advice. And if you cannot move, because you cannot afford the move or there is nowhere else to go, the rent page says its main lever is not yours to pull; asking politely can still cost nothing in a soft market, and the smaller requests may still work, but a threat you cannot carry out is not leverage.