More enquiries for window frame specialists
Marketingkenners makes sure window frame specialists get their own enquiries for uPVC and aluminium window frames and sliding doors, through a website, Google Ads and Google Maps. We measure every enquiry through to the signed quote.
100+ businesses and growing
























Marketingkenners helpt kozijnspecialisten aan eigen aanvragen voor kunststof en aluminium kozijnen en schuifpuien. Bij klikprijzen tot € 11,99 moet de site eerst converteren, met projectfoto’s, uitleg over glas en profielen en een formulier dat aantal kozijnen en bouwjaar uitvraagt. Opvolging houdt de klant vast tot de inmeting, en we meten tot de getekende offerte.
A big decision, and three quotes on the table
People replace their window frames once or twice in a lifetime. The customer researches for a long time, looks at uPVC and aluminium, asks about HR++ or triple glazing and wants to know what a sliding door costs at the back of the house. Then there are three quotes on the table that are hard to compare per frame.
At that moment the lowest price doesn’t always win. The customer chooses whoever gave them confidence: a skilled measure-up, an explanation of profiles and colours, photos of work on similar homes and a clear lead time. Those are exactly the things missing on many window frame sites, which mostly show the manufacturer’s product brochure.
A good enquiry tells you up front how many frames it is, which material the customer wants, whether a sliding door is included and the year the house was built. Then you already know before the measure-up whether it is a one-window job or a whole house.

This is how your customers search
These are the search terms consumers in the Netherlands use to look for new window frames.
| Search term | Searches per month | Cost per click (highest) |
|---|---|---|
| uPVC window frames | 27.100 | € 8,81 |
| window frames | 14.800 | € 9,68 |
| sliding door | 8.100 | € 5,45 |
| replacing window frames | 4.400 | € 11,99 |
| aluminium window frames | 4.400 | € 6,18 |
| uPVC sliding door | 3.600 | € 6,17 |
| subsidy uPVC window frames | 3.600 | € 3,11 |
| uPVC window frames cost | 2.900 | € 4,87 |
Source: Google Ads Keyword Planner, the Netherlands, monthly average from September 2025 to August 2026. Retrieved on 12 October 2026.
Demand all year round, with a peak in September
Search demand for window frames is high all year round, with a peak in September. In September 40,500 people search for “uPVC window frames”. In December and July that drops to 22,200, a little over half. In the other months it is between 27,100 and 33,100, with a second upswing in January, March and April.
“Replacing window frames” follows the same line, from 6,600 in September to 2,900 in July. Click prices in this trade are high, up to €11.99 for that term. A click that doesn’t lead to a measure-up is expensive here.
For your planning that means: no truly quiet months, but moments to scale up. In September and January we put the budget on replacing window frames and uPVC, in summer the emphasis shifts to sliding doors and filling the production schedule for the autumn. Because we measure per product group, you see what every euro delivers.
- September: the biggest peak of the year
- January, March and April: second wave
- December and July: quieter, time to fill the schedule

What the Growth System does for a window frame specialist
A long research phase and high click prices call for a system that holds on to the customer and measures precisely.
A site that explains the choice
Pages for uPVC, aluminium and sliding doors, with photos of your own projects, an explanation of glass and profiles and a form that asks about the home.
Google Ads on buying intent
Ads on “replacing window frames” and “uPVC window frames” in your service area. With click prices up to €11.99 we tightly exclude DIY questions.
Local trust
A Google Business Profile with project photos and reviews from the region, so you appear in Google Maps when someone in your town searches.
Follow-up through to the measure-up
Customers research for weeks. A quick first reply and reminders for open quotes make sure the measure-up lands with you.
Tracked to the quote
We follow every enquiry through to the signed quote. That way you see whether uPVC, aluminium or sliding doors give the best return.
One business per region
We work with one business per trade per region. Another window frame specialist in your region does not get this approach from us.
How it starts for a window frame specialist
Foundation first, only then buy traffic. That’s how it starts in 9 out of 10 cases.

Day 1, intro call
We map your service area, your product groups, your margins and your current enquiries. And we tell you honestly whether the system fits you.
Week 1, baseline
We set up tracking through to the quote, so we know how many enquiries and measure-ups come in now and through which route.
Month 1, foundation
Website and form in order, with pages per material and real project photos. At these click prices the site has to convert first.
Months 2 and 3, Google Ads
Google Ads on replacing window frames, uPVC and sliding doors, with extra budget around September and January. After that we adjust every month.
Your own enquiries for a job with a long sales cycle
Lead platforms or separate agencies
- A quote request often goes to several window frame companies
- You are compared on price per frame
- Little insight into which enquiry became a measure-up and an order
- Site, ads and follow-up sit with different parties
With Marketingkenners
- Enquiries come in through your own site and profile
- The customer sees your projects and your explanation before you come to measure
- Follow-up holds on to the customer during a long research phase
- We track through to the signed quote
For window frame specialists who steer on orders
If you recognise yourself in most points, an intro call makes sense.
- Your jobs average €2,000 or more, such as several frames or a sliding door
- You want to grow in your own region
- You can follow up enquiries quickly and schedule a measure-up
- You also want to fill your production schedule in quieter months
- You want to know what a signed order costs you in marketing
- 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 window frames?
Yes, if you steer tightly. Terms like “replacing window frames” come from people with concrete plans, but click prices go up to €11.99. That is why we only advertise in your service area, exclude DIY questions and measure through to the signed quote.
When will I see the first enquiries?
In month 1 we build the foundation: website, form and tracking. In months 2 and 3 we start with Google Ads. Because customers take a long time to research window frames, it can take a while before an enquiry becomes an order. We don’t promise numbers.
Do you also work for my competitor?
No. We work with one business per trade per region. If we choose you, we won’t take on another window frame specialist in your region.
What does it cost?
That depends on your service area, your product groups and what is already in place. In the free intro call we map that out and you hear what it costs for you. You are not tied to anything.
Do I need a new website?
Not always. If your site shows your own projects, explains uPVC and aluminium and brings in enquiries well, we build on that. If not, a new website often delivers the most at these click prices.
Ready for more enquiries?
Choose where your growth should come from. A specialist picks it up within one working day.





