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Don’t ignore the power of Email Marketing


Email marketing remains the most direct and measurable way to reach decision-makers across the fenestration, construction, and wider building products sectors. As materials shortages and supply chain issues continue to disrupt the market, thousands of installers and specifiers are actively reviewing their suppliers.

Targeted email campaigns give you the opportunity to connect with these decision-makers before your competitors do. With verified contact data and specialist tools from Insight Data, you can bypass gatekeepers, reach the right businesses, and generate high-quality leads quickly.

Shifting supply chains mean new opportunities

Installer loyalty is no longer guaranteed. Some of the UK’s biggest suppliers are facing rising costs, material shortages and production delays, particularly with core products like glass and silicone.

Installers and builders are responding by seeking alternative supply routes, often moving away from long-standing partners in search of value, availability or specialist products. This disruption creates a rare window for new customer acquisition if you can reach the right people quickly.

Why email marketing still works

Compared to other marketing methods, email is fast, low-cost and highly targeted. It gets your message into inboxes, avoids gatekeepers and delivers measurable results. Unlike social media or online ads, there’s no dependency on algorithms.

What you send is what they see. And when done well, it works.

Email is fast, direct, and cost-effective

While digital ads and social media can raise awareness, email marketing cuts straight to decision-makers. It offers:

  • Direct access to inboxes of business owners and procurement teams
  • Full control over your message and branding
  • Detailed analytics to measure open rates, click-throughs, and responses
  • Scalability, from small local campaigns to national sends

But success depends on one thing: data.

Poor data = poor results

Most email failures come down to one issue: bad data. Bought lists and static databases often contain outdated or irrelevant contacts. Emails bounce. Open rates crash. Your sender reputation suffers.

Insight Data takes a different approach. Our database is updated every day by a dedicated research team. Each contact is checked, verified, and segmented by trade type, location, size, and job role.

You send to real businesses, with accurate details, at the right time.

Introducing STEM – Email marketing from Salestracker

Insight Data’s email tool, STEM, is fully integrated with the Salestracker CRM platform. It allows you to create and send professional email campaigns using your live prospect lists, with no exporting or uploading.

You can build your campaigns with simple drag-and-drop tools, personalise your messaging, and track open rates, click-throughs and responses in real time.

It’s straightforward, GDPR-compliant and designed specifically for sales and marketing teams in the glazing and construction supply chain.

Our STEM platform (Salestracker Email Marketing) integrates directly with the Salestracker CRM. It combines:

  • Live prospect data (from over 80,000 verified contacts)
  • Drag-and-drop campaign builder
  • Real-time reporting on opens, clicks, bounces, and responses
  • GDPR-compliant sending tools

STEM empowers your internal team to design and send fully branded campaigns without third-party platforms or messy imports.

🡪 Learn more about STEM

Prefer a managed service? We’ll run your campaigns for you

If you’d prefer us to run the campaigns, we’ve got that covered too. Insight Data’s in-house team sends more than five million targeted emails a year for suppliers, manufacturers and trade organisations.

We’ll write your subject lines, build the campaign, send it at the best time, and report on performance. Everything is handled by professionals who understand your sector and your audience.

🡪 See our email marketing services

Real results, not promises

On average, our clients see email open rates above 25%, click-through rates around 10%, and a consistent return on investment. Many tell us that our campaigns generate significantly better lead quality than general-purpose tools or agency services.

Because the data is better, the results are better. It’s that simple.

On average, clients using our email campaigns report:

Metric Average Uplift
Open Rate 24–31%
Click-Through Rate (CTR) 8–12%
Lead Response Rate 6–9%
Conversion to Enquiry Up to 400% better than generic email tools

These aren’t inflated numbers. They come from live campaigns run across the fenestration, building products, and construction sectors.
email marketing graphic

Who uses Insight Data’s email marketing?

Our tools and services are used by businesses across the supply chain. This includes aluminium and PVCu fabricators, component and hardware suppliers, insulation brands, glazing system providers, and national distributors.

Some run their own campaigns with STEM. Others rely on us to manage everything. Either way, they generate leads and stay in front of decision-makers who matter.

Why email marketing still matters in 2025

Despite changes in digital behaviour, email remains the channel of choice for business communication. Unlike social media, it’s not algorithm-dependent. And unlike cold calling, it reaches your target with no intrusion.

With market conditions fluctuating and competition increasing, email gives you a reliable, low-cost, and measurable route to new customers, especially when it’s fuelled by accurate prospect data.

Get started today

Whether you want to build and send your own campaigns using STEM, or prefer our email experts to manage your marketing, we’ll help you connect with the right businesses.
STEM Logo

Contact us today to start generating leads with smarter email marketing.

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