Selling A Home With Mold: What You Need to Know

Selling a home with moldI am selling my home and found mold! Now what? The potential is there for mold to be found in almost every home. Where there is any amount of moisture, mold can and will grow. However, the real estate community has become increasingly aware of serious mold issues – ones that can do significant damage to home sales.

Molds such as stachybotrys chart arum, or black mold, can cause serious health complications, and substantial liability issues for the sellers of homes that contain black mold.

As a home seller, you cannot afford to mess around with mold growth. You can deal with mold in a responsible way that should help you sell your home for a fair price, and clear you of any liability should the mold return after the sale – but you must deal with the problem directly. There are not many things that will scare a home buyer away from your property than faster than mold!

How Does Mold Affect Home Sales

Selling a home with mold is not something you want to mess around with. There are buyers that will bail out of a home sale at the first mention of mold discovered in a property!

Everyone is familiar with common household mold, the fungi that pops up in all kinds of moist environments. It grows on food left too long in the fridge, for instance. Unfortunately for homeowners, it also grows in attics, bathrooms, basements and virtually any moist surface around your home. If you see black spots developing on a wall in a poorly ventilated room, for example, you are probably noticing the beginning stages of a mold problem.

Mold is all around you, generally in airborne spores searching for an ideal place to land and develop. In small amounts it is not a problem, but when it finds a moist place in your home and you fail to notice it, it can quickly develop into a serious problem.

The Dangers of Mold

Mold causes real estate issuesOf the thousands of different molds in your environment, there are a select few that prove harmful to humans through their proximity. These toxic molds, of which black mold is the most common, produce airborne byproducts that can damage your lungs and lead to general ill health. Asthma sufferers and others with lung complications experience the most problems with toxic mold, but it is capable of making healthy people sick as well. The most vulnerable populations to toxic mold are the elderly and infants.

In reality, serious health complications from indoor molds are quite rare. Most people experience minor reactions from mold exposure, such as sneezing, runny nose or coughing – if they experience any symptoms at all. However, this argument will hold little weight with potential buyers should they discover black mold growing in your property.

Mold Problems for Home Sellers

Why buy a house with mold?

No matter how slight the chances of developing serious complications from mold exposure, home buyers have every right to be cautious when mold issues might be present. This is probably one of the biggest purchases of their lives, and they could be planning to raise a family in the home. Also, there is no reason why they should pay for a home with mold as a home inspection problem when they could find an equally good deal on a home without such issues. As a home seller, you must take all of this into account. Those that have any kind of allergies that effect their respiratory track will be especially susceptible to mold.


If a home buyer purchases your home and soon finds that there is a mold problem, there is a very good chance he or she could come after you with a lawsuit. Whether you knew about the problem and failed to mention it, or you did not take the time and expense to determine if there was a problem before the sale, you may find yourself facing some heavy consequences. Again selling a home with mold is not something you want to take lightly!

Price drop

If the buyer’s home inspector discovers a mold problem in your home, you will have difficulty getting the price you want for the home. The reduction in price will depend on the severity of the problem, but you have little hope of realizing your maximum asking price with a mold infestation. Many times the discovery is enough to drive off buyers altogether. In fact the chances of a buyer backing out of the sale are fairly high even if you agree to take care of the problem. Right or wrong mold is one of those things that really spook home buyers.

What You Can Do As A Seller

Start now

Ideally, you should begin addressing potential mold problems before you ever put your house on the market. Mold cleanup can take time, and you do not want buyers associating your home with ongoing mold remediation if you can help it.

Look thoroughly

Mold in a HomeBegin by looking your home over as thoroughly as possible. Are there any areas where moisture tends to accumulate? Are there any places that you have not looked in a while, such is behind the water heater, in the basement or in the attic? Have you had any water damage problems, such as a leaking roof or a flooded basement?

Examine your house from top to bottom for moisture penetration or accumulation. Not every home has a mold problem, or is even at particular risk of developing one. While every property has the potential for mold in small quantities, not all homes encourage serious mold growth. You should be able to determine where any major water infiltration has occurred, if any, and you should be able to see any major mold growth on exterior surfaces.

Make repairs

Water damage is the main cause of mold infestations. Repair any such problems now, and keep an eye out for mold while making your repairs. In removing damaged materials you may discover infestations behind walls or in ceilings. If you do discover serious mold growth, stop work immediately and contact a mold cleanup professional.

Get a mold inspection

If you think there is a possibility of mold contamination, it may be a good idea to just bite the bullet and get an inspection done. Inspections are not cheap, but they can tell you whether there really is a problem. If there is, you can take care of it now. If there is not, you will have records demonstrating this fact to potential buyers.

There are numerous companies that perform “mold remediation”. Typical a mold remediation will follow a two step process. The first phase would be treating the mold with chemicals that will kill the mold. The second phase is a treatment that prevents the mold from growing back. A good mold removal company will typically offer a warranty for a number of years for the mold not returning to the home.

Document everything

Document all repairs you make and all testing results you receive. This is important for two reasons. First, you want to have these documents available to buyers with questions about mold, to demonstrate that you have addressed the problem as thoroughly as possible. Second, these documents will help protect you in the event that the buyer pursues legal action after they purchase the home.

It is not unheard of for a buyer to go after a seller for problems that were not in fact the seller’s fault. Documentation will help protect you from this type of situation.

Pre-listing mold inspection

If you did have problems with mold or serious water damage, but have done the necessary repairs to fix the problem, you may want to get an official inspection done to prove that the situation has been resolved. Having such documents available will make you look good to buyers and will quickly resolve any concerns they may have.

Assume partial mold removal costs

Head in sand about mold removalThere are situations where your home may be prone to infestations of mold. Even If you have addressed the problem, done the necessary repairs and hired a mold remediation expert, there may still be a possibility of mold problems in the future.

Testing may still show that some mold exists, even after all of your efforts. Levels may be low enough to be safe, but any mold could be enough to worry a potential buyer. Don’t have your head buried in the sand thinking you will find a buyer that won’t care about mold. That is highly unlikely to happen!

When you are in a situation like this, what you have to do is find out what is still causing the mold to return. While a mold remediation company can get rid of the mold via their chemical treatments if the underlying cause of the mold growing is not taken care of, the potential for mold to return will always exist. This is a situation where it would make sense to either address the suspected cause of the issue or at the very least give the buyer a credit to deal with it.

While you may not want to pay for repairs on a house that will no longer be yours, you may save yourself greater expenses later on. If the mold does come back, the buyer will have a very hard time getting any more money from you than the amount agreed to.

Of course, you should consult with an attorney before signing any agreement. However, this could save you money in the long run on a problem property.

Face Mold Head On

Mold is a fact of home ownership for most people. Like all sellers, you want to sell your home for as much as possible as quickly as possible. However, failing to deal with mold issues is asking for trouble, and could cause you problems long after the sale is supposedly over. Keep in mind that if a buyer discovers mold in your home they are most likely going to ask you for remediation.

Don’t be stubborn enough to think that if you decide not to deal with the problem the  next buyer will be fine with taking on a mold issue. That is highly unlikely and your real estate agent is going to be required to disclose this issue to any future buyers.

Address your mold problems head on, and enjoy the peace of mind that comes with a clean and certain sale. Below you will find a good educational video about selling a home with mold. It is well worth a look for those people who flat out decide they will not buy a home where mold has been discovered.

Keep in mind that dealing with mold is a good idea but it is not the end of the world when it comes to purchasing a home. You can re-mediate mold as easily as fixing any other home issue.

Other Important Mold Resources:

Use these resources to further assess selling a home with mold and how to deal with the problem.

About the author: The above Real Estate information on what you need to know about mold when selling a home was provided by Bill Gassett, a Nationally recognized leader in his field. Bill can be reached via email at [email protected] or by phone at 508-625-0191. Bill has helped people move in and out of many Metrowest towns for the last 27+ Years.

Thinking of selling your home? I have a passion for Real Estate and love to share my marketing expertise!

I service Real Estate sales in the following Metrowest MA towns: Ashland, Bellingham, Douglas, Framingham, Franklin, Grafton, Holliston, Hopkinton, Hopedale, Medway, Mendon, Milford, Millbury, Millville, Northborough, Northbridge, Shrewsbury, Southborough, Sutton, Wayland, Westborough, Whitinsville, Worcester, Upton and Uxbridge MA.

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  1. says

    Excellent Info! Love the graphics too. Wherever there is moisture mold is soon to follow. Dealt with $100,000 plus damage recently when a pipe busted and the residents were away on vacation. It’s amazing how quickly mold will grow. There’s a write up about it in our blog if you’re interested. Do you think there are many homes on the market that simply won’t sell due to mold damage?

    • says

      Thanks for your comments and compliments on my article about mold. I have not come across any homes that have not sold due to mold damage although I would imagine it certainly would be possible.

      • says

        Thank you for such a well written, informative article! It is good to see more and more information come to light about the dangers of indoor mold. Our Company Rhinohide, LLC is dedicated to the treatment and prevention of indoor mold as well as educating the comunity. Thanks again and keep up the great articles.

  2. Ian Campbell says

    I made an offer and the offer was accepted to purchase a house that was foreclosed on. The seller made it clear that it was an as is sale. Before going to contract, I had an inspection done and it was discovered that there was mold in the basement and the attic. My question is, can the house be legally sold with active mold growth in it or must the seller clean up the issue before the house can be legally put up for sale. Thank you.

    • says

      Hi Ian – the seller is under no obligation to remove mold in a home. What comes into questions is whether you would be able to procure financing with the mold. If the appraiser notices the mold in the home they will surely let the lender know of it’s existence.

        • says

          Barbara – it depends on the laws in your state. I will tell you it is highly unusual for a real estate agent to “hire” a home inspector. A real estate agent generally may refer clients to home inspectors they feel do an excellent job but the client is the one who does the hiring. Did you find mold in your home shortly after an inspection was done?

  3. Ned Wilson says

    A level 2 mold in crawl space was re-mediated. Even though two inspections reveal no mold, an air quality test is being performed by an environmental company. Results this next week. My question is: Does the “stigma” of a house previously labeled “had mold”, reduce its appraised or selling value? Are there any guidelines to follow concerning a loss of value?
    Thank you for your insights.

    • says

      Ned in my twenty eight years as a real estate agent I have never seen a home that had mold but was professionally taken care of lose any value or have a stigma. The vast majority of people just want to know that there is not a current issue. You of course should disclose that you previously had mold and was professionally treated.

  4. Hannah says

    I bought a house one month ago and it was never disclosed to me that mold was a significant issue. I walked into my basement the other night to see my entire ceiling COVERED in mold. Generally how long does it take to have mold show up? Do you have any suggestions on how to handle this situation? We’ve thought about going back to the sellers because we feel as though they knew of the issue. After initial discovery we found a pipe behind the wall that had been “fixed” with painters tape then wrapped in packing tape. We also found the hose from the dishwasher “fixed” with duct tape. The agent and sellers stated they never even tried the dishwasher- ever. The dishwasher seems to have been a source of the issue… suggestions??

    • says

      Hannah my advice would be to speak to an attorney to find out your legal rights. In different states there are different laws about disclosure. Some states are known as “Caveat Emptor” states or let the buyer beware. This means that unless you ask a seller a direct question they do not have to voluntarily disclose anything about their home including the presence of mold. Some states however a seller has to disclose.

      Did you have a home inspection? This is something that a home inspector would rarely ever miss.

  5. Catherine says

    We bought our home 8 months ago, and the kitchen drawers and cabinets around the sink area have always smelled like mold and it is getting worse. Is there any warranty for buying a home with mildew/mold?

  6. Brandon says

    I am amazed at the callousness of some people. My Step-mom just purchased a home 15 days ago so that she can be closer to me, as my father passed away in May due to his exposure to black mold. Knowing this the Realtor and seller still failed to mention that the house has black mold.

    I went over to the home to ensure that the rains we had last night didn’t cause any issues. I found a puddle in the middle of the room which led me to the water-drops from the ceiling. The rain was going down the inside of the wall and into adjacent utility room where hiding behind the spare tiling and some other items is a large nasty area thick with black mold.

    We did not have an inspection for mold, however, the inspection I did led to beams under floor being replaced, piers being put in and house being leveled. Now, knowing the history we have with this nasty little fungus, and still failing to disclose this matter to us, do we have any recourse?

    • says

      Brandon it depends on the disclosure laws in the state in which you are located. In some states problems with a home are required to be disclosed. In others they are not. Sorry to hear about your problem with the mold. I would consult with an attorney on your legal rights.

  7. Kirk Hilles says

    We just found out and had repaired today a bathtub faucet that had sprung a leak in the valve and now we can see some mold in the wall. I’m going to get it tested. I get it that if it’s Black Mold then we will have to have professional remediation.

    But, what if its a harmless mold? Would we need to disclose of it then? What are the rules? Every homeowner encounters mold all the time whether it be on old foods, containers, plus various places in the bathroom like tile and such.

    I don’t want to be worried about a lawsuit, but I don’t want to spend thousands on cleanup and certification if there’s no serious reason to do what.

    What do you recommend?

    • says

      Kirk there is mold in every home. This fact is something few people realize. Mold is everywhere. You should disclose if the mold is bad enough that it needs remediation or could affects someones health.

  8. Cindi says

    We are selling our home and believe there is some mold around the top of the shower…around the perimeter where the tile meets the ceiling. We have wiped it clean, but it comes back after a month or so. We have not had a mold inspection done. My question is if we are selling our home, “as is”, do we still need to disclose this? And, would you recommend we go ahead and have a mold inspection done? Thank you.

    • says

      Cindi it is always wise to disclose the presence of mold in ones home. What you are describing, however, sounds like common household mold and not the variety that would cause serious health issues.

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