# Four frightening problems that can haunt your completion

Posted 15/10/2026 by [Alex Bland](/blog/authors/alex-bland)

Completion may be the final step in a property purchase, but a few unwelcome surprises can still appear. Here is how to recognise the risks and prepare for them.

   ![Pumpkin house](https://www.reedsrains.co.uk/uploads/blog_post/12_1330_s.jpg?v=73835) **Summary:** A property chain can unravel, a survey can uncover costly problems, searches can take longer than expected and a mortgage offer can expire. Prompt preparation and communication can reduce avoidable delays and help buyers understand when to seek professional advice.

Completion may be the final step in a property purchase, but a few unwelcome surprises can still appear. Here is how to recognise the risks and prepare for them.

An accepted offer is a milestone worth celebrating. You can picture the furniture in place, the first night in your new home and, perhaps, being settled before Christmas.

Before the keys are handed over, however, the **[legal work](/page/356)**, **[mortgage arrangements](/page/1168)** and other linked transactions all need to come together. A problem in any one of these areas can delay completion or, in some cases, bring the move to an end.

This Halloween, we look at four of the most common completion scares and the sensible steps that can help you prepare.

## When the property chain starts to unravel

Unless you are buying or selling chain-free, your transaction may rely on several other households moving at the same time. A change of circumstances, failed mortgage application or withdrawn offer elsewhere in the chain can have consequences for everyone.

Nearly one in four agreed UK sales fell through in the first quarter of 2026, with [TwentyCi](https://www.twentyci.co.uk/phmr/twentyci-property-homemover-report-q1-2026/) reporting a fall-through rate of 23.7%. Although every transaction is different, the figure illustrates why keeping the process moving matters.

### What you can do

Make sure your estate agent and **[conveyancer](/page/356)** can reach you easily, return forms and identification promptly, and tell them immediately if your circumstances change. Regular updates can help identify a weak point before it becomes a more serious problem.

## When the survey uncovers more than expected

The purpose of a survey is to help a buyer understand the condition of a property. Sometimes it identifies an issue that requires further investigation, from damp and roofing defects to subsidence concerns or outdated services.

The next step will depend on the nature and severity of the problem. A buyer might obtain a specialist report, request quotations, renegotiate or decide that the property is no longer right for them. A lender may also reconsider its valuation or impose conditions.

### What you can do

Book an appropriate survey early enough to consider the findings without unnecessary time pressure. Ask the surveyor to explain anything that is unclear and seek specialist advice where recommended.

If the findings affect your finances or the amount you need to borrow, [**Embrace Financial Services** ](/page/1168)can discuss your mortgage options with you.

## When searches hold up the legal work

Property searches allow your **[conveyancer](/page/356)** to check important information that may not be apparent from a viewing. Depending on the property and location, this can include local authority information, drainage and water records, environmental matters and additional specialist searches.

Turnaround times vary, and further enquiries may be required if a search identifies a concern. Waiting too long to begin can therefore put pressure on the later stages of the purchase.

### What you can do

Instruct your **[conveyancer](/page/356)** promptly after your offer is accepted. Ask what funds, documents or confirmations they need before ordering searches, and provide them without delay. If you hope to move by a particular date, explain this early, but remember that exchange and completion dates should not be treated as certain until your conveyancer confirms them.

## When the mortgage offer clock runs down

Mortgage offers have an expiry date. Around six months is common, but some offers last for a shorter or longer period depending on the lender, product and circumstances.

If completion has not taken place by the deadline, the lender may consider an extension. Alternatively, a new application may be necessary. This could involve fresh affordability checks, another valuation and different mortgage terms.

### What you can do

Record the expiry date and make sure your **[conveyancer](/page/356)** is aware of it. If progress slows, do not wait until the final few days to ask for help. Contact your **[mortgage adviser](/page/1168)** early so they can establish what your lender may require and explain the available options.

You can also read Embrace Financial Services' guide to [mortgage offer timescales](https://www.embracefs.co.uk/blog/mortgage-offers-how-long-they-last).

## Keep your move from becoming a horror story

No buyer or seller can control every part of a property transaction. What you can do is prepare carefully, respond quickly and surround yourself with experienced professionals who will keep you informed.

If your transaction is taking longer than expected or your mortgage offer is approaching its expiry date, an adviser at **[Embrace Financial Services](/page/1168)** can review your position. UK-wide advice is available, including evening and weekend appointments, for Agreements in Principle, mortgages, remortgages and protection.

**[Book a mortgage appointment](/page/1168)**

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### FAQs
 

#### Why might a property completion be delayed?

Delays can arise from problems elsewhere in a property chain, survey findings, outstanding enquiries, slow searches, missing documents or mortgage arrangements that are not ready in time.

#### Can completion happen after a mortgage offer expires?

The buyer must have valid funding in place. A lender may agree to extend an offer, but this is not automatic. If an extension is unavailable, the buyer may need to reapply.

#### How early should property searches be ordered?

Your conveyancer can advise when searches should be ordered. In many cases, beginning promptly after instruction and payment of the required funds helps prevent avoidable delays.

#### Is a completion date guaranteed?

Not before contracts are exchanged and the date is legally agreed. Proposed dates can change while the chain, legal work and mortgage arrangements are still being finalised.

YOUR PROPERTY MAY BE REPOSSESSED IF YOU DO NOT KEEP UP REPAYMENTS ON YOUR MORTGAGE.

Your initial mortgage appointment is without obligation. Embrace Financial Services normally charge a fee for their services; however, it is payable only on the submission of your mortgage application. The fee will depend on your circumstances but the standard fee is £599. Complex cases usually attract a higher fee. Embrace Financial Services will discuss and agree the fee with you prior to submitting any mortgage application.

Reeds Rains is an introducer to Embrace Financial Services Ltd. Embrace Financial Services Ltd is an Appointed Representative of PRIMIS Mortgage Network, a trading name of First Complete Ltd. First Complete Ltd is authorised and regulated by the Financial Conduct Authority.

You are under no obligation to use our recommended mortgage or protection adviser. Your decision will not affect the seller’s decision, the acceptance of your offer, or the progress of your purchase.

Please be aware that the information provided within these archives has been pre-published, as of the date published on each article. The information contained within, including references to taxation, legislation, regulation, or any other issues or concerns may no longer apply.

   ![Alex Bland](https://www.reedsrains.co.uk/uploads/blog_author/12_10_t.jpg?v=42102) [Alex Bland](/blog/authors/alex-bland)

Reeds Rains Emarketing Manager