The largest town in the Val-d'Oise, Argenteuil is a busy Île-de-France business centre with a wealth of small firms and neighbourhood shops. ConvertiLab works with businesses in Argenteuil a few minutes from Rueil-Malmaison, in person or by video call, with a single point of contact: website design, local SEO and online advertising, at public prices, with a free mockup within 48 hours.
ConvertiLab is based in Rueil-Malmaison (92500) and works with businesses in Argenteuil and across the Paris region, by video call or on site depending on your project.
Argenteuil is the most populated town in the Val-d'Oise and is being reshaped by major urban renewal programmes. Sitting 20 minutes from Paris by RER, it is a base for many tradespeople, retailers and service providers who work across the whole of Île-de-France. Businesses in Argenteuil can reach both a local audience (130 000 residents) and the wider Île-de-France market through well targeted local SEO.
A large town in the Val-d'Oise on the banks of the Seine, Argenteuil combines an Impressionist past, a big population and a dense network of neighbourhood shops and trades serving a working, active community. The town benefits from being right next to Paris.
In an area this populated, local demand is strong but often poorly served online: many trades and shops in Argenteuil have no site worth the name. A well kept Google profile, reviews and a fast site ranking across the Val-d'Oise are enough to capture nearby customers that competitors let slip away.
Argenteuil is the most populous town in the Val-d'Oise and the only one in the department attached to the Métropole du Grand Paris, on the right bank of the Seine. Its industrial past is being reshaped: the Berges de Seine business park is home to SMEs, workshops and service companies, the Victor-Dupouy hospital supports practices and healthcare professionals, and the town centre, from the station to Côté Seine, remains the shopping heart. Searches for 'website design Argenteuil' and 'digital marketing agency Argenteuil' come from tradespeople, shopkeepers and freelancers who want to be found by the residents of the Boucle Nord de Seine.
We work with businesses in Argenteuil and the Val-d'Oise from Rueil-Malmaison, a few kilometres away, on the other side of the Seine via Bezons and the A86. Video calls are enough for most projects, but we can also meet at your premises or at the agency when the project warrants it. You keep a single point of contact from the first call to launch, with public prices, a written quote within 24 hours and the mock-up of your home page free within 48 hours.
ConvertiLab is a web agency that works with businesses in Argenteuil and across the whole Val-d'Oise department. We do not simply build good looking sites: we design conversion tools that turn your visitors into customers, with local SEO so that your prospects in Argenteuil find you easily on Google.
The four requests that come up most often, and the concrete answer to each one.
A five page business website for 890 €, bespoke design, copy worked on with you, first year of hosting included. A landing page for 490 €, a redesign of an existing site for 690 €. You sign off a free mock-up before committing, and the written quote arrives within 24 hours.
See the business website offerA complete Google listing, customer reviews, pages per service and per district, from the Val d'Argent to the Coteaux: local SEO targets what people in Argenteuil and the neighbouring towns actually search for, from 500 € per month over a minimum of six months, with a readable report every month.
Discover local SEOGoogle Ads on your exact queries, Meta ads targeted on Argenteuil, Bezons, Sartrouville or Colombes depending on the area you cover: a shared dashboard, a known cost per enquiry, and an advertising account opened in your own name that you keep if the work stops.
Discover Google AdsPlumber, electrician, garage, salon, town centre restaurant: your customers look for you on their phone, compare the reviews and call. We design the home page of your future site free of charge, within 48 hours, from your real business and your own photos.
Request a free mock-upThe neighbourhoods, business parks and towns the enquiries most often come from.
Building trades and renovation
Plumbers, electricians, roofers and renovation firms working from Argenteuil to Sartrouville: one page per service, photos of real jobs, Google reviews and a quote form that works on a phone.
Shops and restaurants
From the town centre to Côté Seine and the local markets, customers decide on their phone: exact opening hours, menu or catalogue, directions from the station, bookings or online ordering.
Healthcare and professional practices
Around the Victor-Dupouy hospital, medical and allied health practices, solicitors and accountants: online booking, pages per speciality, an accurate Google listing and the required legal notices respected.
Industry, subcontracting and business services
Workshops, industrial SMEs and service companies in the Berges de Seine and the Porte Saint-Germain: a restrained B2B site with capacity, references, certifications and a direct contact, so that buyers can check you out.
A simple, transparent process in 4 steps, from the first audit to going live
We look at your market in Argenteuil, your competitors and your goals. A 30 minute call to understand your business and settle on the right digital strategy.
We create a bespoke mockup that you approve before any development starts. Modern, responsive design, aligned with your brand identity. Unlimited revisions included.
Built with the fastest technologies available (Next.js, React). A very quick, secure, SEO ready site, with a Google PageSpeed score you can check on delivery.
Going live, training on how to use it, and 30 days of support included. We stay available to develop your site as your needs change.
Three delivered projects, with their figures. The detail of each one is in our case studies.
Concrete commitments, written into the quote. No nasty surprises.
You approve a mockup before the site goes live, then two rounds of revisions are included. You know what you are getting before you pay.
The price on the quote is the final price. No hidden costs, no surprises. You know exactly what you are paying.
Your brochure website is delivered in 7 to 14 days, and the deadline is written into the quote. For an online shop or an application, the deadline is set in the quote.
After delivery we stay beside you for 30 days, for any change, question or adjustment. We reply within 24 hours.
Everything you need to know before you start your web project
Join the 150+ clients we have supported and who trust us. Get a free, tailored quote within 24 hours. Brochure websites from €890, online shops from €1,490.
Payment only once you have approved the mockup. Spread payments available, no subscription.
A website, online advertising, SEO and CRM: each pillar can be ordered on its own, with a price and a deadline written down before we start. We work remotely for Argenteuil as we do for the whole of France, by video call.
A website that brings in enquiries, not just a shop window
landing page €490, brochure site €89002Campaigns that cost less than they bring in
on request03Be found on Google, and quoted by AI
from €500 a month04Every enquiry tracked, followed up and turned into a customer
on requestA web agency in Val-d'Oise and across Île-de-France

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