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HIU, UFH, CIU, MVHR Services and more for Prime Central London Apartments

MaintainMyHome specialises in HIUs, UFH, CIUs, FCUs, and MVHR services across Central London. Precision maintenance, specialist engineers, and crystal-clear reporting.

Discreet. Dependable. Designed for Luxury Living.

100+ Loyal Service Plan Clients

Over £500m Of Property Maintained

Recommended by Trustpilot

Intelligent Maintenance for Complex Systems

Today’s luxury apartments are powered by increasingly sophisticated mechanical and ventilation systems. At MaintainMyHome, we specialise in keeping those systems running flawlessly. Whether you're a leaseholder, property manager, or developer, this page helps you understand what each system does, how we maintain it, and the real-world benefits of regular servicing.

From Heat Interface Units to MVHR ventilation, we apply specialist knowledge, factory-certified techniques, and high-end reporting to every home we maintain.

We offer a variety of service maintenance which includes:

Heat Interface Units (HIUs) in Luxury Apartments

What is a HIU?

In most modern, high-rise luxury developments, Heat Interface Units (HIUs) are the primary system for delivering both heating and instantaneous hot water to individual apartments. They connect the building’s central energy plant to each home, providing on-demand thermal comfort while maintaining the clean aesthetics and space-saving design that premium properties demand.

It is essential to carry out annual servicing of these units to ensure efficient running costs and to reduce the possibility of the unit or its components failing.

What Our Specialist HIU Service Covers

Cleaning of landlord-side strainers to ensure unimpeded flow and system efficiency
Cleaning of apartment-side strainers to ensure unimpeded flow and system efficiency
Leak, corrosion, and component checks across the entire unit
Safety relief valve testing to confirm compliance and functional integrity
Expansion vessel inspection and recharging, maintaining safe pressure levels
Examination of room heating controls and thermostats to ensure accurate regulation
Water quality testing on the secondary heating circuit—checking inhibitor strength, corrosion risk, and pH levels

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True HIU Specialists

Our engineers are Tier 1 certified by SAV Systems and trained by top HIU brands.

Precise Diagnostics

We test water quality, safety valves, pumps, and control systems for total assurance.

Energy Efficiency First

Properly calibrated systems reduce running costs and prolong component lifespan.

Proven Reporting Tools

Detailed digital reports help you understand performance and meet leaseholder obligations.

Underfloor Heating (UFH) in Luxury Residences

What is UFH?

In modern, high-specification apartments, heating is commonly delivered through a “wet” underfloor heating (UFH) system connected to a central plant via a Heat Interface Unit (HIU). This silent, low-profile solution replaces traditional radiators to maintain clean architectural lines and ensure even warmth across stone, tile, or timber flooring.

If you have a pipework arrangement like the image below in the hallway cupboard, then you have underfloor heating, and we can help.

What Our Premium UFH Service Covers

Our annual Planned Preventive Maintenance (PPM) for underfloor heating systems is designed to maintain performance, prevent issues, and extend the lifespan of your investment:

Inspect and balance manifolds and circuits

Test zone valves, actuators, and circulation pumps

Verify thermostat performance and communication with HIUs

Conduct thermal imaging to confirm distribution

Test water quality and add inhibitors

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Thermal Mapping

We use non-invasive scans to ensure heat is delivered evenly and efficiently.

Water Quality Control

Annual tests and periodic flushes protect delicate floor finishes & embedded pipework.

Comfort & Energy Optimised

Properly maintained UFH saves energy while ensuring quiet, even warmth.

Built to Protect Interiors

Balanced systems preserve stone, timber, and high-end finishes.

Cooling Interface Units (CIUs)

What is a CIU?

A Cooling Interface Unit (CIU) is a discreet and highly efficient module that delivers comfort cooling from a central chilled water source directly to each apartment or dwelling. Ideal for premium residential developments, CIUs provide silent, effective cooling via fan coil units or underfloor systems—without the need for unsightly external plant or individual condensers.

What Our Service Includes

Our Planned Preventative Maintenance (PPM) for CIUs in luxury homes is designed to uphold the highest standards of performance and comfort. Each visit includes:

Clean landlord and apartment strainers

Inspect cooling exchangers and valves

Check pressure and expansion vessels

Balance cooling circuits for even delivery

Calibrate control panels and review performance

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Tailored to CIU Brands

Certified expertise in luxury-grade CIU systems including SAV, YGHP, and Caleffi.

Clean Cooling Flow

Filtered, balanced water reduces the risk of flow disruption or overheating.

Quiet, Consistent Comfort

Preventative care ensures you stay cool without noise or performance dips.

Minimal Disruption

Work completed swiftly and discreetly, with residents in mind.

Fan Coil Units (FCUs) Air Conditioning in Luxury Apartments

What is a Fan Coil Unit?

Fan Coil Units (FCUs) provide discreet, space-saving cooling in many premium apartments. Tucked into ceilings, joinery, or bulkheads, these units draw chilled water or refrigerant across a coil, blowing cool air into the room through hidden grilles.

While they operate out of sight, FCUs play a critical role in shaping indoor air quality. Over time, filters, coils, fans, and drains can collect dust, moisture, and biological contaminants. Without regular maintenance, these can compromise not only system performance—but also occupant health.

What Our FCU Service Covers

Our Planned Preventative Maintenance (PPM) for FCUs includes an intensive hygiene check alongside technical calibration to ensure your system is safe, clean, and high performing:

Clean coils and fan blades with HVAC-grade biocidal agents

Replace or clean filters to improve airflow

Disinfect drain lines and pumps

Test thermostats, sensors, and actuators

Inspect fan motor integrity and system calibration

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Prioritising Health

We remove dust, mould spores, and bacteria to protect respiratory health.

Hidden System Hygiene

We access and clean concealed ductwork, joinery vents, and pumps.

Energy & Airflow Restored

Clean filters and fans reduce motor strain and power bills.

Enhanced System Longevity

Lower microbial growth extends the life of key components.

MVHR Ventilation Units in Luxury Apartments

What is MVHR?

In today’s sealed, high-performance homes, your health is directly tied to your ventilation system. Mechanical Ventilation with Heat Recovery (MVHR) units silently supply the fresh air you breathe—day and night—while extracting stale, humid air from bathrooms and kitchens. These systems maintain consistent airflow throughout the apartment, balancing comfort, energy efficiency, and, critically, air quality.

But if neglected, MVHR systems can circulate dust, pollution, and allergens straight into your living space. In high-rise apartments—particularly from Level 1 to Level 30 in Central London, where outdoor pollution levels are highest—filter replacement is not optional. It’s essential.

What Our MVHR Maintenance Service Covers

Our maintenance package ensures your MVHR system delivers not only performance, but purity:

Replace and clean air filters (every 6–12 months)

Clean heat exchanger cores

Disinfect fan motors and impellers

Clear and sanitise condensate drains

Inspect duct hygiene and test sensors

"Your MVHR system is the only thing standing between London’s outdoor air and your lungs. If you're not maintaining your filters, you're not filtering the air.
We treat your ventilation system like the critical health infrastructure it is—because it is"

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Built for City Living

Traps diesel particulates, soot, and pollen—essential in Central London.

Indoor Air Quality Optimised

Filter changes improve asthma, allergy, and respiratory health.

Efficient Heat Recovery

Clean cores and fans keep bills low and airflows silent.

Quality Aesthetic Protection

Balanced airflow helps prevent condensation on walls, ceilings, and windows

Who We Work With

We’re proud to support the portfolios of leading property professionals including Savills, Knight Frank, Eccord, Caroline Baker and others who specialise in high-net-worth estates. From heritage-listed apartments to modern penthouses, our work spans £500 million+ in residential property value.

See what our clients say

"Regular servicing of our apartment's cooling system by MMH has prevented emergency breakdowns and preserved the condition of our valuable interiors. They understand that system failures in luxury properties can cause damage far exceeding the cost of maintenance."

- Oliver From Trustpilot

"Maintain My Home are true specialists. Their knowledge of comfort cooling, underfloor heating and smart home systems is second to none. What really impressed me was their customer-first approach – clear communication, proactive updates, and a genuine effort to keep us informed at every stage. You can tell they only deal with luxury homes – the service feels tailored, precise, and highly professional."

James From Trustpilot

"Managing our London property from abroad was a constant worry until we found MMH. Their thorough maintenance and detailed reporting give us complete confidence our investment is protected. The peace of mind is worth every penny."

Sophia From Trustpilot