Tenants. RTM companies. Managing agents.

HIU compliance and servicing packages for London

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 8586

Booked diary slots. Out of hours support.

01

The checks and records you need

We agree a service schedule for the equipment in your building. The package can include:

  • Heat exchanger, strainer, valve and controller checks
  • Thermal performance, return temperature, leak and safety checks
  • Heat meter checks and readings where fitted
  • A digital report per unit with photos, readings and faults
  • A repairs register with quoted next steps
  • An annual maintenance record pack
02

Choose the right booking package

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.

  • Resident-paid or landlord-paid visits as agreed
  • Access reminders and rebooking arrangements set in the contract
  • CIU, fan-coil and MVHR servicing can be quoted alongside HIUs
  • Breakdown attendance terms agreed in writing
03

Clear commercial terms

Block service contracts have a fixed annual fee for agreed units. Fees are invoiced quarterly in advance, or on an agreed Direct Debit schedule.

  • 12-month initial term, renewing annually
  • Three months’ written notice to end
  • Annual price review agreed in writing
  • 30-day payment terms
  • Named account contact and agreed service scope
04

The scope stays clear

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.

05

From your enquiry to your records

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

Plan maintenance. Check your network duties.

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.

Your questions

What does an HIU service do?

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.

How long does a visit take?

The slot depends on the unit and the service scope. We confirm the duration, engineer capacity and programme before residents book.

What happens if a resident is not in?

The contract and resident notice set the access, reminder, rebooking and missed-visit rules. These are agreed before the programme starts.

Can you work with our existing network operator?

Yes. Tell us who operates the network and share the relevant service requirements. Network operation, billing and registration duties remain with the responsible parties.

What do residents pay?

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.

What if an HIU fails between visits?

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

Request a compliance package

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 8586

For urgent help, please call. Add photos only where it is safe to take them. Do not remove appliance covers.

Step 1 of 3: Your property

Leave the operator blank if you are unsure. Tenants can ask about one flat.

Our registrations and training

Gas Safe registered

Registration 578913

SafeContractor approved

Health and safety accreditation

SAV approved

Danfoss accredited

NAPIT

Ventilation scope

Worcester Bosch Diamond

Boiler installation

Vaillant Advanced

Boiler installation

Heat pump qualified

Scope confirmed for your equipment

Employers’ liability: £10m. Public liability: £5m. Ask for evidence relevant to your work.

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