Online marketing for damp proofing specialists
For damp proofing specialists we build a system that delivers your own enquiries from people with rising damp, a wet basement or penetrating damp. We measure every enquiry through to the signed quote.
100+ businesses and growing
























Marketingkenners helpt vochtbestrijders aan eigen aanvragen van mensen met optrekkend vocht, een vochtige kelder of vochtdoorslag. Pagina’s per probleem leggen uit wat er speelt en het formulier vraagt de plek van het vocht, bouwjaar en foto’s. Bij klikprijzen tot € 11,66 zetten we Google Ads vooral rond de piek in september in en meten we tot de getekende offerte.
The customer does not yet know what the problem is
Anyone with damp in the house searches for the symptom first. A damp patch at the bottom of an interior wall, salt efflorescence, a musty basement or peeling paint. The customer does not know whether it is rising damp, penetrating damp or condensation, and so does not know who to call.
A lot goes wrong here. The customer reads contradictory advice, tries something themselves first and only calls when it gets worse. A website that just shouts “damp proofing”, with no explanation of causes and no photos of walls and basements, does not win that trust.
A good enquiry says where the damp is (interior wall, exterior wall, basement or crawl space), since when, the year the house was built and a few photos. Then you can judge whether an on-site inspection is needed.

This is how your customers search
These are search terms from people with damp problems in a wall or basement, with the average number of searches per month in the Netherlands.
| Search term | Searches per month | Cost per click (highest) |
|---|---|---|
| rising damp | 880 | € 7,15 |
| rising damp interior wall | 720 | € 5,65 |
| damp proofing | 390 | € 11,66 |
| damp basement | 390 | € 6,34 |
| rising damp exterior wall | 390 | € 3,46 |
| wall injection for damp | 320 | € 7,31 |
| penetrating damp wall | 210 | € 3,80 |
| ascending damp | 140 | € 10,37 |
Source: Google Ads Keyword Planner, the Netherlands, monthly average from September 2025 to August 2026. Retrieved on 12 October 2026.
September is the peak, the summer is quiet
Search demand for rising damp peaked in September 2025 with 1,900 searches and sits between 590 and 1,000 from October through April. In July and August it drops to 390 and 320, about a fifth of that peak. “Damp basement” shows the same picture: 1,900 in September, 140 to 260 in the winter months and spring.
When the heating goes to on and it turns wet outside, the customer sees the patches. Then you need to be at the top, so that is where most of the budget goes to Google Ads . Mind the click price: on “damp proofing” it is up to €11.66, so every click has to land on a page that really helps the customer.
- September: highest search demand
- October through April: stable demand
- July and August: about a fifth of the peak

What the Growth System does for a damp proofing specialist
Six parts that turn a worried searcher into a scheduled inspection.
Explanation that builds trust
A website with pages per problem, such as rising damp, damp basement and penetrating damp, with photos of your own treatments.
Ads on the symptom
Google Ads on terms like “rising damp interior wall” and “wall injection for damp”, with its own page per problem.
Found locally
A Google Business Profile with reviews and photos of walls and basements in your region.
Situation known up front
The form asks for the location of the damp, year built and photos. That way you see whether an inspection is needed.
Tracking to the quote
We follow every enquiry through to the signed quote. With click prices above ten euros, you need to know which campaign pays off.
One damp proofing specialist per region
We work with one business per region in each trade. So you never bid against another client of ours on the same search term.
This is how we start together
In a fixed order, so you are ready for the autumn peak.

Intro call
We go through your service area, your margins per treatment and where your enquiries come from now. You get an honest answer on whether the system fits you.
Week 1: baseline
We set up measurement through to the quote, including phone calls and scheduled inspections.
Month 1: the foundation
Your website gets pages per damp problem, your own photos and a form that asks about the situation.
Months 2 and 3: Google Ads
We start campaigns aimed at buying intent per problem. From month 3 we build SEO for the many exploratory questions about damp.
Shared leads or your own enquiries
Lead platforms and separate parties
- A damp enquiry often goes to several businesses
- Little information about where the damp is
- You pay per lead, even if it turns out to be condensation
- No view of which enquiry became a job
With Marketingkenners
- The enquiry comes in only to you
- Location, year built and photos are already included
- Pages that explain to the customer what is going on
- Every enquiry followed up to the signed quote
For damp proofing specialists who want to grow
The Growth System fits best if you recognise yourself in this.
- Your treatments average €2,000 or more
- You want to grow in your own region
- You can follow up enquiries quickly and schedule an inspection
- You have photos of your own projects or want to have them made
- You want to know which euro of marketing delivers a job
- You mainly want more clicks, likes or followers. We steer on enquiries and signed jobs.
- You’d rather try it yourself first. Start in the knowledge base
- You don’t know yet where the leak is. Take the free growth scan first
Related trades and your region
What customers say on Google.
I'm very happy with the collaboration. They're very engaged and we're seeing a nice rise in enquiries.
A lot has been achieved in online marketing in half a year. Niels is always well prepared and comes with concrete suggestions and recommendations.
Our sales have risen sharply since we started working together. Marketing is finally truly measurable. Highly recommended!
They listened carefully to our wishes, thought along actively and everything is professionally and sharply put together.
Thom and Niels know what they're doing, they get the most out of our website and know how to translate our technical knowledge into language consumers can understand.
Our photobooth sales shot up straight away and the website looks super sleek. They think along well with new ideas.
I'm very happy with the collaboration. They're very engaged and we're seeing a nice rise in enquiries.
A lot has been achieved in online marketing in half a year. Niels is always well prepared and comes with concrete suggestions and recommendations.
Our sales have risen sharply since we started working together. Marketing is finally truly measurable. Highly recommended!
They listened carefully to our wishes, thought along actively and everything is professionally and sharply put together.
Thom and Niels know what they're doing, they get the most out of our website and know how to translate our technical knowledge into language consumers can understand.
Our photobooth sales shot up straight away and the website looks super sleek. They think along well with new ideas.
When it comes to CRO, SEO and SEA, the guys deliver visible results time after time. They work in a structured and focused way.
Thom put our website at the top of Google like a shot. He keeps all his agreements, correctly and reliably.
I had previously been let down by another agency, but Thom and Niels exceeded all expectations.
They know their stuff, are very pragmatic and proactive, and importantly: they keep their agreements. A pleasure to work with.
Thom and Niels helped me with my SEO and Google Ads, and as a result I've gained a lot of new customers!
We're very happy with how they think along and with the improvements to our sites and online visibility.
Always on hand and thinking along. Highly recommended for entrepreneurs looking for a top-sport mentality.
When it comes to CRO, SEO and SEA, the guys deliver visible results time after time. They work in a structured and focused way.
Thom put our website at the top of Google like a shot. He keeps all his agreements, correctly and reliably.
I had previously been let down by another agency, but Thom and Niels exceeded all expectations.
They know their stuff, are very pragmatic and proactive, and importantly: they keep their agreements. A pleasure to work with.
Thom and Niels helped me with my SEO and Google Ads, and as a result I've gained a lot of new customers!
We're very happy with how they think along and with the improvements to our sites and online visibility.
Always on hand and thinking along. Highly recommended for entrepreneurs looking for a top-sport mentality.
Frequently asked questions
Don't see your question here? Call, WhatsApp or email us. You'll get an answer within one working day.

Does Google Ads work for damp proofing?
Yes, but click prices are high: up to €11.66 on “damp proofing”. It works if you advertise on the problem the customer sees, such as rising damp in an interior wall, and land every click on a page that explains exactly that problem. Without measurement through to the quote, it is hard to see what it delivers.
When will I see the first enquiries?
In month 1 we lay the foundation: website, form and measurement. In months 2 and 3 the ads start, and from then on enquiries come in through those campaigns. How many depends on your region and the season; we do not promise numbers.
Do you also work for my competitor?
No. We work with one business per region in each trade. If we already work for a damp proofing specialist in your region, we say so in the intro call.
What does it cost?
That depends on your service area, your current site and your growth goal. That is why we do not mention a price on the site. In the free intro call you get a concrete proposal.
Do I need a new website?
Not always. Your site does need to explain what is going on for each damp problem and have a form that asks for photos and the location of the damp. In 9 out of 10 cases we improve that foundation first and only then the traffic.
Ready for more enquiries?
Choose where your growth should come from. A specialist picks it up within one working day.





