A damp survey changes a sale the moment it exists. Before it, you had a house with a bit of a smell in the back bedroom. After it, you have a document stating “rising damp to ground floor walls, chemical damp-proof course recommended, estimated cost £4,800”, and every buyer, surveyor and lender who sees it treats that as the starting point. Sometimes you commissioned the survey yourself to get ahead of the problem. Sometimes a buyer’s lender required it and the buyer then walked away, leaving you holding the report. Either way, you now need a buyer who’ll take the findings as information to price from, not a reason to run. Several types of company will, and we’re one of them. This guide sets out who they are, how each handles a damp survey, and what to expect from the process.
What A Damp Survey Does To A Conventional Sale
Mortgage lenders instruct valuers, and valuers who see signs of damp recommend a specialist report. If that report identifies work needed, the lender will typically do one of three things: refuse the mortgage, retain a sum equal to the estimated cost until the work is done, or require the work to be completed before completion. The buyer then has to fund the treatment from savings, accept a reduced loan, or renegotiate with you.
Most buyers in that position ask for a reduction that comfortably exceeds the quoted cost, to cover their own uncertainty. If you decline, they often withdraw. That cycle can repeat two or three times before a seller gives up on the open market.
The Companies That Will Buy With A Damp Survey On File
Cash House Buying Companies
Companies that buy directly with their own funds – like us at Property Buyers Today – treat a damp survey as useful information. It tells them the type of damp, the extent and the likely cost, which is exactly what they need to make an accurate offer. There’s no lender to impose a retention, so the sale completes with the damp as it is, and the buyer carries out the treatment afterwards.
Property Investors And Developers
Private investors and small developers buy damp-affected homes to refurbish and let or resell. They’ll price in the treatment plus a margin, and they move quickly if they have funds available. Finding them without an agent takes some legwork, and they tend to negotiate hard once they know you’ve had a sale fall through.
Auction Houses
Auction houses don’t buy property themselves, but they sell to a room full of cash buyers who expect damp. The survey goes in the legal pack, bidders read it, and the hammer price reflects it. You pay entry and commission fees and accept the result on the day.
Specialist Mortgage Buyers
A small number of buyers use lenders who’ll accept damp with a retention and have the savings to cover the shortfall. They exist, but they’re rare, and relying on finding one means a long wait.
How To Tell The Genuine Buyers From The Rest
The damp sector attracts a few companies that advertise as buyers but either introduce you to someone else for a fee or make a high offer and cut it after their own survey. Before you commit to any company, ask:
- Whether they’re buying with their own money or arranging finance or an investor
- For proof of funds in writing
- Who pays for the survey, the legal work and the EPC
- Whether their offer takes account of the damp survey you’ve already provided, and what else it’s subject to
- For reviews from sellers who completed, particularly any mentioning damp or structural issues
Straight answers to those five questions tell you most of what you need to know.
How We Approach A Property With A Damp Survey
When you contact us with a damp survey already in hand, we read it before we make the offer. That matters, because it means the figure we give you within 24 hours already reflects the treatment cost. Our own survey, which we pay for, then confirms the extent and checks for anything the original report missed. If the two agree, the offer stands. If ours finds something materially different, we’ll show you both reports and explain.
If you’d like to sell a damp-affected house to a company that pays for the survey, that’s how it works with us. We cover the legal fees and the EPC alongside the survey, our offers sit between 70% and 85% of market value, and we buy across England and Wales. The damp treatment is ours to arrange after completion.
What The Survey Should Tell A Buyer
A good damp survey makes the sale easier, so if you’re commissioning one yourself, make sure it covers the following, because these are the points any buyer will price from.
- The type of damp, whether condensation, penetrating or rising, since the costs differ enormously
- The cause, such as raised ground levels, failed pointing, a leaking gutter or a bridged damp-proof course
- The extent, with a plan or room-by-room notes showing where readings were taken
- The recommended treatment and an itemised estimate
- Whether timbers are affected, because rot and infestation add significantly to the cost
- The surveyor’s independence, since a report from a company that also sells treatment carries less weight than one from a surveyor with no stake in the outcome
An independent report with clear costs supports a better offer from every type of buyer.
Should You Treat The Damp Before Selling?
For a cash sale, usually not. The treatment cost comes off the offer either way, and doing the work yourself means funding it upfront and waiting for it to finish. For an open market sale to a mortgage buyer, treating it first with an insurance-backed guarantee can make the difference between a sale that completes and one that collapses at the valuation. Which route suits you depends on how much time and money you’re willing to put in before the sale, and whether the eventual price difference justifies it.
FAQs
Will a cash buyer purchase a house that’s failed a damp survey?
Yes. A damp survey showing work is needed is information a cash buyer uses to price the property. It doesn’t prevent the sale, because there’s no lender to impose conditions.
Does a damp survey reduce the value of my house?
The survey itself doesn’t. The damp it identifies does, by roughly the cost of treatment plus a margin for the buyer’s risk. A clear, independent survey keeps that margin small.
Do I have to show buyers my damp survey?
If you’re aware of damp, you must disclose it on the property information form, and a buyer’s solicitor will ask for any reports you hold. Providing the survey upfront is usually in your interest.
Who pays for a damp survey when selling to a cash buyer?
The buyer commissions and pays for their own survey. If you’ve already obtained one, a reputable buyer will read it and factor it into the offer, then confirm with their own inspection.
Can I get a mortgage buyer for a house with rising damp?
Sometimes, but lenders often retain funds or require treatment first, and buyers frequently withdraw or demand large reductions after the report. Sales to mortgage buyers collapse more often when damp is involved.
How quickly can a cash buyer complete on a damp property?
Once the survey and legal checks are done, completion happens on a date agreed with you. With the damp report already available and your paperwork ready, a matter of weeks is realistic.