What is included in a PH247 HIU service?
– Strainer clean and inspection
– Plate heat exchanger descale check
– Differential pressure valve calibration
– Actuator and mixing valve test
– Job report with photos
HIU Service & Repair London
24/7 HIU emergency repairs and servicing, with a fast response across all London postcodes.
Frequently Asked Questions
How much does an HIU service cost in London?
PH247 charges £150 inc vat for an annual HIU service in London, including strainer clean, pressure check, and a written report. Emergency repair callouts start from £150 inc vat.
How often should a heat interface unit be serviced?
HIUs should be serviced annually. In London’s hard water areas, strainer cleaning may be needed every 6 months to prevent flow restriction and loss of hot water.
Can PH247 repair any brand of HIU?
Yes. Our engineers work on all major HIU brands including Evinox, Danfoss, Altecnic, Heatrae Sadia, Intatec, and all other models.
What causes loss of hot water with an HIU?
The most common cause is a blocked strainer restricting flow to the plate heat exchanger. This is resolved during a standard service visit. Other causes include a faulty DHW actuator or scale buildup on the heat exchanger.
Do you offer emergency HIU repair in London?
Yes. PH247 provides 24/7 emergency HIU repair across London. Call us for same-day attendance on heating and hot water failures.
Accreditations
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