Caleffi is a well-established manufacturer of hydronic and HVAC solutions, with a product portfolio covering heating, cooling, water quality, and renewable energy systems. The company is known for its focus on quality, innovation, and sustainable system performance.
For this project, the focus was on strengthening digital visibility, improving lead generation performance, and creating more demand in the Slovenian market.
Caleffi wanted to strengthen its market presence and create more demand through digital channels.
The main challenge was not just visibility. The business needed a strategy that could attract the right audience, bring more relevant traffic to the website, and turn that interest into qualified leads.
At the same time, the campaign had to support a specialised product portfolio in a technical industry, which meant the messaging and targeting needed to be precise.
The goal was to improve brand visibility, increase relevant website traffic, and generate more qualified leads through paid digital campaigns.
This was not simply a reach campaign. The objective was to combine awareness and performance in a way that would support measurable lead generation and stronger digital traction in the market.
GROU built a focused lead generation strategy designed to support both visibility and demand generation.
The approach combined Google Search and Display campaigns with Facebook and LinkedIn activity, allowing each platform to play a different role in the funnel.
Google captured active demand, while paid social helped expand reach, strengthen visibility, and support lead capture among relevant audiences. This created a more complete paid acquisition system instead of relying on a single channel.
GROU developed and managed a multi-channel campaign built around lead generation and paid acquisition.
The work included:
building and managing Google Search campaigns around relevant product and demand themes
using Google Display to expand visibility and reach
running Facebook campaigns tailored to target audience segments
supporting lead generation with paid social activity, including LinkedIn
optimising campaign structure and messaging to improve both traffic quality and lead generation performance
By aligning channels around one clear objective, GROU helped Caleffi increase visibility while also generating more qualified interest.
The campaign delivered strong gains across visibility, traffic, and lead generation.
Google Ads generated more than 1.7 million impressions, while Facebook Ads reached more than 96,000 unique users and drove over 10,000 clicks. Website traffic increased by 840.74%, rising from 1,360 monthly visits to nearly 25,000.
Most importantly, the campaign generated 300 qualified leads and helped Caleffi build stronger demand through a focused digital acquisition strategy. Instead of improving only reach, the work translated visibility into measurable commercial outcomes.
This case shows that in a technical B2B industry, strong results come from combining visibility with precise lead generation execution.
By aligning channel roles, messaging, and campaign structure, GROU helped Caleffi turn paid media into a more effective source of qualified demand.
GROU demonstrated a strong understanding of our specialised industry and market dynamics. Their strategic approach helped increase our brand visibility and generate more qualified leads.

















