Design & consultancy
Heat network design and consultancy that works beyond practical completion
We help clients plan, procure, deliver, and optimise communal and district heat networks that are technically robust, commercially viable, and designed for long-term performance.
Our advice is shaped by decades of hands-on experience across network design, equipment supply, project delivery, and live operation. We assess not only whether a scheme can be built, but whether it will operate efficiently, remain maintainable throughout its lifecycle, and deliver reliable heat to the people who depend on it.
Heatiliti provides objective, technically informed, whole-life network advice. Because our team has designed, installed, and operated the systems we advise on, our recommendations are based on how a network will perform in practice, not simply how it appears on paper.
Construction, commissioning & handover assurance
RIBA Stage 5–7 contractor design, installation and handover reviews
Commissioning oversight and witness testing
End-of-defects reports and post-completion performance audits
Operational performance, compliance & lifecycle planning
Condition surveys and asset performance audits for live networks
Heat network compliance reviews
Critical risk assessments, business continuity and disaster recovery planning
Lifecycle and asset-replacement planning
Funding, commercial & consumer protection support
HNES and Green Heat Network Fund guidance and application support
Energy Performance Contract (EPC) and ESCo contract review and optimisation support
Consumer protection advisory services, helping clients identify and manage the technical, commercial, and customer service risks that affect heat consumers from design through to operation
Design & consultancy
Strategy, feasibility & decarbonisation
Feasibility studies and technology option appraisals for new and existing schemes
Decarbonisation and retrofit studies, including heat pump transition planning
Heat Network Technical Assurance Scheme (HNTAS) readiness reviews and gap analysis
Support with Heat Network Efficiency Scheme (HNES) revenue and capital funding applications
Support with Green Heat Network Fund (GHNF) capital grant applications
RIBA Stage 2-4 design
Outline and detailed design for new communal and district heat network
Hydronic design reviews, pipe sizing, and pressure loss assessment
Technical specifications, equipment selection, and Employer’s Requirements
Design coordination across mechanical, electrical, controls, and civils interfaces
Technical assurance & procurement support
Independent design and technical assurance reviews
Tender documentation and contractor evaluation support
Commissioning strategy development and witness testing planning
Why Heatiliti
Most heat network consultancies advise from the outside looking in. Heatiliti’s team has designed heat networks, supplied the equipment that goes into them, delivered projects on site, and operated networks after residents have moved in. That whole-value-chain experience allows us to identify the operational and commercial implications of design decisions before construction begins, rather than after a network starts underperforming.
Relevant experience
Heatiliti’s leadership team has experience developing, technically supporting, and delivering major heat network optimisation and Energy Performance Contract programmes. This includes multi-site upgrades to controls, hydraulics and energy centre infrastructure across thousands of homes, and structuring long-term ESCo contracts for new-build developments.
FAQs
What stage can Heatiliti get involved at?
Heatiliti can support projects at any stage, from early feasibility and option appraisal through to RIBA Stage 7 handover review, or by carrying out technical health checks on existing operational networks.
Is Heatiliti an independent consultant?
Heatiliti provides objective, technically informed, whole-life advice. Because our team also designs, delivers and operates heat networks, our recommendations are grounded in practical, operational experience rather than a purely advisory perspective.
Can Heatiliti help with funding applications?
Yes. We support clients with Heat Network Efficiency Scheme (HNES), Heat Network Technical Assurance Scheme (HNTAS) readiness assessments, and Green Heat Network Fund (GHNF) applications, together with the technical evidence required to support successful submissions.
Can Heatiliti help with funding applications?
Yes. We support clients with Heat Network Efficiency Scheme (HNES), Heat Network Technical Assurance Scheme (HNTAS) readiness assessments, and Green Heat Network Fund (GHNF) applications, together with the technical evidence required to support successful submissions.
Do you review Energy Performance Contracts and ESCo agreements we already have in place?
Yes. We provide independent contract review and optimisation support for existing EPC and ESCo arrangements, even where Heatiliti was not involved as the original contracting party.
Need a clearer route forward for your heat network?
020 3432 0595
hello@heatiliti.com
Our hours of operation are Monday-Friday, 8am-5pm