Independent Heat Network Assurance

Heat Networks developed and delivered the right way

Designed for the people responsible for heat networks

Who we support

Property & Residential Developers

Bringing new build schemes to market quickly and compliantly, often under planning obligations to include a heat network.

Housing Associations & Local Authorities

Uniti helps HA’s and LA’s get new schemes right from the start and avoid the operational headaches that come with poor handovers.

Heat Network Operators

Uniti provides independent assurance to verify the network is performing as designed, identify the root causes behind underperformance, and prepare operators ready for tightening regulation.

WHAT WE DO

Our Services

Client Representation

Your independent voice across all stakeholders.

Design Review & Assurance

CP1 checklists, ER reviews and sign-off at every RIBA stage.

Compliance & Regulation

Ofgem pre-authorisation, HNTAS and zoning support.

Construction Oversight

On-site quality checks and contractor review.

Handover & Commissioning

Acceptance testing and performance reconciliation.

Operations & Maintenance

Post-handover monitoring and performance checks.

WHY UNITI

What Makes Us Different

Translating Complexity

Uniti helps translate the technical complexity of heat networks into clear commercial and operational terms, so you can make decisions with confidence.

Regulation Ready

Deep expertise in Ofgem, HNTAS, CP1 and zoning requirements means we don’t just help clients stay compliant, we help you stay ahead of what’s coming.

Client-First Independence

Always and only on the client’s side. No other relationships to protect and no other agenda, so we can challenge anyone, at any stage, without compromise.

Full Lifecycle Coverage

From development vision through to operations, Uniti supports the full lifecycle development of heat networks.

Stakeholder Accountability

Uniti acts as the independent thread across all stakeholders, removing duplication, closing gaps and ensuring everyone is working toward the same outcome.

WHY IT MATTERS

The Cost Of Doing Nothing

Left unchecked, small issues become expensive ones. Swipe through the risks of getting it wrong.

Regulatory Fines

Ofgem’s enforcement powers are now active, with fines of up to £1 million or 10% of turnover. Non-compliance is now a significant financial and legal risk.

Operational Costs

High return temperatures, excessive heat loss and poorly performing HIUs translate directly into operational costs, eroding margin for operators and increasing bills for customers.

Remediation Costs

Fixing poorly specified or installed heat networks post-handover is costly, disruptive, and often unfeasible, far exceeding prevention costs.

Programme Delays

Failure to achieve HNTAS certification or Ofgem pre-authorisation can stall development, delay occupation, and trigger penalty clauses in sales contracts.

Reputational Damage

Underperforming heat networks generate complaints, Ombudsman referrals and negative press, damaging the reputation of developers and social landlords.

Expired Defects Window

Once the defects period closes, you lose the opportunity to hold contractors accountable, leaving permanent, unresolved issues.

Real networks, real results.

Our Work

From new build developments to complex retrofits, here’s a look at how we’ve helped clients get their heat networks right.

Grace House –Aster Group project

The Uniti process was recently used to ensure that a new apartment scheme in London met the client’s needs and specification.

Housing Development, East Midlands

The Uniti process was recently used to ensure that a new housing development in the East Midlands met the client’s needs and specification.

Get the latest updates

Common questions

FAQs

Here’s what clients most often ask about staying ahead of Ofgem and HNTAS requirements.

What is heat network technical assurance?

It’s independent oversight of a heat network’s design, installation and performance, checking that what’s built matches what was specified, and that it meets regulatory and performance standards, at every stage from planning through to operation.

Who does Uniti work with?

We work with developers delivering new heat networks, housing providers and operators managing existing ones, and local authorities overseeing zoning and compliance across their area.

Why do I need independent assurance if I already have a contractor?

Contractors and consultants often have their own commercial interests in a project. Uniti has no other relationships to protect, so we can challenge decisions and flag issues on your behalf, without conflict of interest.

At what stage should I bring Uniti in?

As early as possible. We support the full heat network lifecycle, from development vision through to operation, but the earlier we’re involved, the more risk and cost we can help you avoid.

GET IN TOUCH

Let's talk about your heat network.

Whether you’re at day zero of a new development or approaching handover, our team can walk you through the right level of support for your project. Fill in the form and we’ll come back to you.