Expertible

20/07/2026

Historic England has published a new practical guide to assessing damp in historic buildings.
It looks at how moisture moves through building fabric, the common sources and symptoms of damp, and the strengths and limitations of different testing and monitoring methods.

Most importantly, it reinforces a point we return to again and again, similar symptoms can have very different causes. Good decisions begin with understanding the building, its construction, its history and where the moisture is actually coming from.

Comment DAMP and we’ll send you:

• the direct link to Historic England’s page, where the guide can be downloaded for free
• our free information page on understanding damp in older buildings
(No email address required)

Where general guidance is not enough, Expertible also connects homeowners with independent specialists for one-to-one video advice tailored to their own building and circumstances, with no remedial work to sell.

Guide source: Historic England

24/06/2026

Your isn’t “sweaty” it’s “condensy”… the unseasonal moist heat that we’re having at the moment means that many surfaces in your home will be at or below the dew point temperature, I.e. that temperature at which the moisture in the air cools enough to turn it from an invisible gas to a liquid. That’s the moisture we’re seeing on our walls and surfaces. Not a great deal you can do about it really other than to ensure you have good airflow in the building to ensure it doesn’t hang around for too long!

19/05/2026

I try to follow up with everyone who has a consultation where I can - this email nearly made me cry.

It makes all the time, money and effort into creating this for people worthwhile. Thank you Michelle for sharing your experience and helping drive us on.
- Rich 🙏

27/03/2026

We’ve just launched our new Digital Downloads page on Expertible!

Our aim is to empower homeowners to make the right decisions for their homes, so we’ve created a number of free handy infographics and digital downloads on various topics related to older buildings.

Head over to the Damp section on our website, or see the comments for the link.

Keep your eye on that page as we’re always updating it with new helpful resources.

28/02/2026

Most damp “surveys” are not just surveys.

They are part of a sales process.

When the person investigating your walls also sells the treatment, the outcome is rarely neutral. Diagnosis and product are bundled together. Intervention becomes the default.

Drill. Inject. Seal.

Different houses. Same prescription.

This is not about bad people. It is about incentives. When revenue depends on installation, installation quietly becomes the answer.

Older buildings are not standard assets. They are material systems. Solid walls, lime mortars, evaporation pathways, ground levels, ventilation. Moisture behaves differently in them.

Treating every tide mark with the same chemical solution is not building science, it is a standardised sales patter. Products to mask the issue, doesn’t mean it’s not still there.

There is another way.

Separate diagnosis from product. Start with someone who understands traditional buildings and has nothing to sell you. That can begin with a focused video consultation, helping you understand the cause, decide whether a site visit is even necessary, who should carry it out, and what it should reasonably cost.

That is how you move from a default “cure” to a tailored plan.

Before you approve invasive work, pause.

Your home deserves more than a sales pitch masquerading as a diagnosis.

PeriodProperty

27/02/2026

For decades, we have treated damp in older buildings as a product problem; in reality, it is an incentive problem.

When diagnosis and installation sit inside the same business model, intervention becomes the default outcome. Drill, inject, tank, repeat. No matter the building, it’s the same prescription.

That structure is scalable, repeatable and profitable.

However, older buildings are not standardised assets. They are material systems with solid walls, lime mortars, evaporation pathways, varying ground levels, ventilation needs… moisture behaves differently in them.

When commercial incentives reward installation, it becomes the only answer; whether or not it addresses the root cause.

This is not about bad actors, but a system that bundles advice with product and badges it as diagnosis.

The result? An endemic cycle of invasive damp proofing, trapped moisture, blown render, spalling masonry, and more “treatment” sold to fix the consequences of the last one.

We believe there is a better structure.

Separate diagnosis from product.
Unbundle advice from sales.
Understand the building before prescribing the cure.

If we want our older building stock to thrive, we need to change not just the treatment, but the incentives behind it.

11/02/2026

Given damp issues can be so common with old buildings we created this little infographic (using some online tools) on the process of elimination that damp experts run through.

To be clear, this is about identifying the CAUSE of a damp issue and not simply trying to treat the symptoms (which is what most ‘damp proofing’ strategies do).

When you’ve identified the actual cause then it can often be a simple or DIY thing to remedy with some guidance.

For those who’ve not heard of Expertible before, it’s a service that has been created having seen homeowners fall foul of various sales-driven ‘solutions’ attempting to repair their homes.

We got fed up of homeowners always being sold something, or getting ‘free’ advice that wasn’t free because it was just to sell a service or product. With Expertible you book a 1-1 video call with a heritage building expert and you’re only paying for that expert’s time, experience and expertise; not them trying to get a sale out of you. Finally, someone with YOUR best interests first.

Not everyone will need help from an expert to diagnose their damp, which is why we regularly post how to investigate things for yourself on here. But for those who would like some help, we have many building pathology experts with slots available to book who can support you if you get stuck.

Head to Expertible.com to learn more.

07/02/2026

Building on the moisture in buildings video series, here's a link to the second instalment: https://youtu.be/0pi2j5TCBMk?si=GVlOudaWQtCx4Rs6

07/02/2026

Our first long form YouTube video has had over 100k views!
Check it out here: https://youtu.be/Wt4kzG9LMxU?si=yT3gGyGf_Y_5EjYf

07/02/2026

Latest video now Live on YouTube:

Condensation in the home often feels random. You open windows, you heat rooms, you try a dehumidifier, and yet water still appears on windows, mirrors and co...