Tenants. RTM companies. Managing agents.
Planned HIU servicing, resident booking and clear reports for residential blocks. Keep maintenance records in order and give residents a clear route to book their visit.
From £90 per unit / year + VAT
£108 including VAT. Block package starting price. Final scope and unit rates are confirmed in a written quote.
Request a packageCall 020 3621 8586Booked diary slots. Out of hours support.
We agree a service schedule for the equipment in your building. The package can include:
Tenant packages coordinate resident appointments and access. RTM and block programmes cover an agreed unit list with progress reporting. Managing agent packages bring several buildings under one agreed schedule.
Block service contracts have a fixed annual fee for agreed units. Fees are invoiced quarterly in advance, or on an agreed Direct Debit schedule.
We specialise in HIUs and in-flat services. Energy centre plant, commercial boilers, CHP and BMS work sit outside our direct scope but can be quoted as part of a wider package. Repairs, parts and out of hours charges are set out in your quote. These business packages are separate from consumer membership.
We review your building or unit list, agree a price and programme, plan resident access, carry out the service and record faults. Your office receives the service records and planned repairs. A service pack supports maintenance records; it does not by itself certify the whole network’s regulatory compliance.
Regulation and your service records
Ofgem regulation began on 27 January 2026. Existing relevant heat networks must register by 26 January 2027. The operator and supplier are responsible for identifying their duties.
The Heat Network Technical Assurance Scheme (HNTAS) is planned to launch in phases from 2027. HIU maintenance records can support your evidence, but a service visit does not meet every network requirement.
Check the current Ofgem registration guidance and government HNTAS guidance. Information checked 13 November 2026.
It checks the condition and operation of the unit that supplies heating and hot water to the flat. The agreed service records performance, faults and any recommended repair.
The slot depends on the unit and the service scope. We confirm the duration, engineer capacity and programme before residents book.
The contract and resident notice set the access, reminder, rebooking and missed-visit rules. These are agreed before the programme starts.
Yes. Tell us who operates the network and share the relevant service requirements. Network operation, billing and registration duties remain with the responsible parties.
The agreed contract sets the payer for each service. Extra work is quoted separately. Residents should check with their landlord or managing agent before booking chargeable work.
Contact our office. Your contract sets any breakdown attendance terms. Repairs and parts are included only where the agreed scope says so.
Talk to Heat Plex
Tell us what you need. Our office will confirm the scope, price and available diary slots. Sending an enquiry does not book a visit or start a contract.
020 3621 8586For urgent help, please call. Add photos only where it is safe to take them. Do not remove appliance covers.
Registration 578913
Health and safety accreditation
Danfoss accredited
Ventilation scope
Boiler installation
Boiler installation
Scope confirmed for your equipment
Employers’ liability: £10m. Public liability: £5m. Ask for evidence relevant to your work.
See current ratings and feedback on the review sites.