hiursm

who we are

RSM is a trusted company specialising in Heat Interface Units (HIUs). We deliver expert servicing, commissioning, maintenance, validations, diagnostics, and repairs to ensure optimal performance, energy efficiency, and reliability in communal and district heating systems. With a focus on quality workmanship and responsive service, RSM is the go-to provider for all your HIU needs.

Our Services

Why Choose Us

Expertise You Can Trust

With years of experience in HIU servicing, maintenance, and installation, our team brings unmatched technical knowledge to every job. We understand the complexities of heat interface units and deliver reliable solutions that keep your Hiu systems running efficiently.

Specialists in HIU Systems

Unlike general plumbing or heating firms, we specialise exclusively in HIUs. This means we know exactly how to optimize performance, identify issues quickly, and prolong the life of your system.

Fast, Reliable Response

We pride ourselves on quick turnaround times and dependable service. Whether it’s an emergency repair or scheduled maintenance, we’ll be there when you need us — on time, every time.

Transparent Pricing

No hidden fees, no surprises. We offer clear, upfront quotes so you know exactly what to expect. Our competitive pricing ensures you get top-quality service without breaking the bank.

Customer-Focused Approach

Your comfort and satisfaction come first. From the first call to the final fix, we focus on clear communication, courteous service, and long-term results.

Certified and Compliant

Our engineers are fully trained and certified, adhering to the latest regulations and safety standards. You can count on us for workmanship that meets — and exceeds — industry expectations.

Maintenance Plans Available

Stay ahead of breakdowns with our preventative maintenance packages, designed to keep your HIU running smoothly all year round and help reduce energy costs.