Rueil-Malmaison · Paris · Paris region
Google Ads, Facebook Ads, Instagram Ads, TikTok, Pinterest, LinkedIn: we set up and run your online advertising so that it costs you less than it brings in. You follow one number each month: the cost per enquiry.
No advertising account yet? Start by estimating your advertising budget with our free tool.
Your enquiries, last 30 days
ExampleFree tool
Pick your sector, your town and the platform (Google Ads, Meta Ads or both), tell us the budget you have in mind and your average sale. You see straight away what that budget could bring in clicks and enquiries.
Pick your sector and the advertising platform you have in mind.
Advertising platform *
Who it is for, and for what problem
It works when an enquiry is worth more than it costs and when you can answer quickly. Five platforms, one rule: start where your customers already are.
Google Ads, Meta Ads, TikTok, Pinterest and LinkedIn Ads around an account that belongs to you.
Organic search takes months. A well set up Google Ads campaign brings you visitors looking for your trade from the very first week.
Usually conversion tracking was missing, or the landing page gave nobody a reason to call. We take the account over and put that right.
An opening, a new service, a new area: Meta Ads and TikTok Ads make an offer known across a neighbourhood or a town within days.
Google Shopping, Pinterest and Meta Ads to sell online: we track the cost per order and the basket value.
We work mostly with tradespeople, shops, sole traders and small teams, from Rueil-Malmaison (92), across the Hauts-de-Seine and as a web agency in Paris. Campaigns are run remotely: we work anywhere in France, by video call.
What we see
These are the three problems we find most often when we take over a Google Ads or Meta Ads account.
Clicks, impressions, a long report, and yet nobody knows what an enquiry costs or where the customers who sign actually came from.
The same ads for months, keywords never cleaned up, bids left on automatic: every enquiry costs more than the last one.
An account created in the agency's name, a contact who keeps changing, a reply within the week: you pay without being able to take back control.
What the pillar offers
We pick the one where your customers already are, we start with a single platform and only add a second once the first one pays. Recommended media budget: €500 a month per platform, plus our management fee.
Sponsored
your-site.fr › emergency-plumbing
Plumber in Rueil-Malmaison: written quote before any work
Leaks, water heaters, blockages. Local tradesman, free quote, a call back within the hour.
Google Ads (formerly AdWords) shows your ads the moment someone types “plumber Rueil-Malmaison” or “solicitor Paris”. That person is already looking: you need to be there, at the right price.
On requestmanagement fee + media budget from €500/month
Your business
Sponsored
Still waiting on a quote after ten days? Leave your details and we will call you back today.
Instant form
Facebook and Instagram reach people who are not looking for you yet, around your area or by their interests. Our Facebook Ads agency in Paris leans on a good visual and a clear offer.
On requestmanagement fee + media budget from €500/month
This is Saturday night
“Looking for somewhere to eat”@your-restaurant
Sponsored
Book a tableThe short video format reaches a young, local audience. Useful for a restaurant, a salon, a shop, or a product that needs to be seen in use.
On requestmanagement fee + media budget from €500/month
Oak washbasin unit
Your shop
SavePinterest is where people plan a purchase: interiors, weddings, home improvements, fashion. Your promoted pins appear while they are still gathering ideas.
On requestmanagement fee + media budget from €500/month
Your practice
Sponsored
Are your clients asking for advice you never find the time to bill for?
Guide: billing for the advice you give
For selling to businesses: practices, consultants, B2B suppliers. The click costs more, but you choose the job title, the sector and the size of the company.
On requestmanagement fee + media budget from €500/month
How we work
Five markers in time, always in the same order, each with a result you can check.
Day 1
Thirty minutes, free: your business, your area, your average sale, how many enquiries you can handle. If you already have an account, we audit it. If advertising has little chance of paying its way, we tell you.
Week 1
Within 24 hours: the platform to start on, the media budget, the target cost per enquiry, the management fee. Then an account in your name, conversion tracking installed, ads written, the landing page prepared.
Weeks 2 to 4
Several ads and audiences run at the same time on a limited budget. The first enquiries usually arrive within two weeks. We cut whatever costs too much.
Months 2 and 3
Keywords to exclude, bids, times of day, areas, new visuals: we adjust from the real numbers, until the cost per enquiry holds steady.
Every month
Budget spent, enquiries received, cost per enquiry. We talk it through and decide together whether to carry on, spend more, add a platform or stop.
What you get
No dashboard to decipher. Here is what belongs to you and what you see every month.
Google Ads, Meta Business Manager, pixel and conversions all belong to you, history included.
Calls, forms, messages, purchases: every enquiry is counted, so we know what it really costs.
Copy written, images and videos prepared from your own photos or from a simple shoot.
We adapt your existing page, or build a dedicated landing page if yours is driving visitors away.
Budget spent, enquiries received, cost per enquiry: to set against what a customer is worth to you.
What worked, what we cut, what we are testing next. Then a conversation to decide.
If your website is not ready to take paid traffic, we tell you before anything goes live: you can request a free landing page mock-up designed to turn your visitors into enquiries.
What you can check for yourself
Since 4 September 2026, ConvertiLab has been running its own Meta Ads campaign at €36 a day. The enquiries it brings in land in our CRM, exactly as they would for any client, and trigger our automatic follow-ups.
What we do for ourselves, we do for you: one campaign, three videos tested side by side, a form wired to the CRM, a weekly look at the cost per enquiry and one simple rule for cutting whatever costs too much. The formats and settings that hold up for us are the ones we put to you.
We do not publish client results in figures: a cost per enquiry depends on the trade, the area, the average sale and the season. What we can do is work out a rough figure with you before you spend a single euro.
Running in France. The enquiries received are visible in our own CRM.
Our campaign, in plain terms
Launch date
4 September 2026, and the campaign is still live.
Daily budget
€36 a day, paid to Meta, three videos under test.
Enquiries in our CRM
Every enquiry lands in Pipedrive and triggers our follow-ups, exactly as it would for a client.
We will show you the ads manager and the CRM on a video call, without any client result figures.
If you cannot answer that, it is the first number we work out together, free of charge, from your account or from your market.
A traditional agency or ConvertiLab
This table describes practices we come across often when taking accounts over, not any one agency in particular.
Our commitments
Six concrete commitments, which promise not a result but a way of working.
Before any quote, we look at your existing account and tell you where the money leaks.
Account, pixel, audiences, history: everything is created in your name, with your login details.
Pause or stop whenever you like, three months recommended before you judge it.
The founder, by phone or by email, with a reply within 24 hours.
Budget, enquiries, cost per enquiry: nothing more, nothing hidden.
If advertising has little chance of paying its way for you, we tell you.
Price and commitment
Two separate lines on your quote: the media budget, which goes to the platform, and the management fee, which pays for our work. No commission on the media budget.
VAT not applicable, art. 293 B of the French tax code. The quote is written and agreed before anything goes live.
FAQ
A media budget of at least €500 a month per platform. Below that, campaigns do not get enough data to improve. On top of that come our management fees, set on the quote according to the number of platforms and the creative work involved.
If your customers already type your trade into Google (emergency callout, tradesman, solicitor, dentist), start with Google Ads: the demand exists and you need to capture it. If your offer is discovered through imagery (restaurant, beauty, interiors, a new product), Meta Ads is often more effective. We prefer to start on a single platform and make it pay before adding another.
The first visits arrive as soon as the campaign goes live, and the first enquiries usually within two weeks. It then takes four to eight weeks of testing for the cost per enquiry to settle, which is why we recommend three months before judging a campaign.
It is the budget spent divided by the number of enquiries received (calls, forms, messages, orders), also known as cost per lead. If an enquiry costs you €25 and one contact in three signs a €900 quote, you know straight away whether the campaign pays. Clicks and impressions tell you none of that.
We look at the structure of your campaigns, your conversion tracking, the keywords or audiences spending money without bringing an enquiry, and the landing page. You get a written summary of where the money leaks and what we would change first, with no obligation to hand us the account. If you do not have an account yet, the audit becomes a consultation: which platform to start on, the budget we would recommend and a rough cost per enquiry.
The founder of the agency, who builds and runs the Google Ads and Meta Ads accounts himself. You have one point of contact, who writes the ads, sets up the campaigns and sends you the report. We do not outsource campaign management.
Yes. The Google Ads account, the Meta Business Manager, the pixel and the conversion data are all created in your name. If you stop, you keep the whole history.
No. You can pause or stop whenever you like. We do recommend three months, though, so the testing of the first few weeks has time to produce a steady cost per enquiry.
You let us know, we either pause the campaigns or leave them running as you prefer, then we remove our access. The account, the pixel, the audiences and the history stay in your name, with your login details. You can take over yourself or hand the account to someone else, with nothing to rebuild.
For Google Ads, yes: a clear, fast page with a phone number and a form. For Meta Ads, a form built into Facebook or Instagram can be enough to begin with. If your page does not convert, we build a dedicated landing page through our website creation pillar.
Our other pillars
A website that converts, search rankings that last and an AI that answers overnight all make every euro of advertising go further.
Website creation
Brochure site, e-commerce, landing page, redesign or web app, delivered in two weeks.
Landing page €490, brochure site €890
Website creation in Rueil-Malmaison and ParisSEO and AI visibility
Organic search, local SEO (Google Business Profile, customer reviews) and visibility in ChatGPT, Perplexity and Google AI Overviews.
From €500 a month
SEO agency in Rueil-Malmaison and Paris: organic, local, AICRM and automatic follow-ups
We set up your CRM, whichever one it is (HubSpot, Salesforce, Pipedrive, Zoho, Brevo, Sellsy, Axonaut, monday CRM or the one you already have), with your website forms and your campaigns connected to it, and automatic follow-ups by email.
On request
CRM and automatic follow-ups for small and medium businesses: HubSpot, Salesforce, Pipedrive
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Read the articleFree account audit
You already have an account: we audit it. You are starting from nothing: we work out a budget and a cost per enquiry with you. Either way, a written answer within 24 hours, with no commitment.
What monthly media budget do you have in mind?
No contact details asked for at this step.
Book 30 minutes, it is free and you speak to the founder. You leave with an honest view and a rough budget figure.