London HVAC and Property Maintenance for Managing Agents, Residential Blocks & Landlords
Westminster-based. Planned maintenance, emergency repair and compliance for HVAC, heating, plumbing and electrical. Trusted by landlords, managing agents and facilities teams across Greater London.
Something broken right now? Emergency HVAC & heating repair, same-day response
REFCOM certified · Gas Safe registered engineers · SafeContractor approved · NICEIC certified

Trusted by property professionals across London
Mainteniq is a Westminster-based property maintenance company with over 15 years of HVAC and building maintenance experience.
Working across Greater London, all 32 boroughs, for
- landlords
- managing agents
- residential blocks
- short-let hosts
- commercial sites
- REFCOM F-Gas certified (REF1024168)
- NICEIC certified
- SafeContractor approved
- gas work by Gas Safe registered engineers
We provide
- planned maintenance contracts
- emergency repair with a same-day response
- air conditioning and heating
- HIU and BMS specialists
- compliance certificates (CP12, EICR, PAT, TM44, F-Gas)
- plumbing, electrical and heat pump servicing
- a written report after every visit
- one point of contact
Most of our work is HVAC maintenance services for London blocks and offices, run inside planned maintenance contracts that also cover:
When something fails, our emergency HVAC repair line puts an engineer on site the same day across Central London and the boroughs around it.
Put the whole block on one maintenance programme
Every heat interface unit serviced before winter, the communal plant, ventilation, controls and certificates on the same schedule, a photographed report for every flat and a block summary the directors can read. Priced per unit at block rates, with the survey credited against year one, no charge for flats we cannot access, and a same-day emergency line for blocks on a programme.

- One contractor from the plant room to the last flat
- Photographed Maintivo report and certificate per unit
- Block summary: faults by pattern, replacements in priority order
- Access plan agreed up front, missed flats rebooked
- SAV certified HIU engineers, REFCOM F-Gas certified
From first survey to a planned, reported programme
Reactive repairs cost more and arrive at the worst moment. A planned programme puts every system on a schedule, with a record of what was found and what was done.
- 01
Site survey
We survey the block or property and list every system: HVAC, HIUs, ventilation, controls and certificates. The survey is credited against year one of a contract.
- 02
Plan and access
A schedule and access plan are agreed up front, so servicing is booked before winter and flats we could not access are rebooked, with no charge for missed units.
- 03
Serviced and reported
Our engineers service each unit and photograph the work. You receive a written report after every visit, with a block summary for directors and managing agents.
- 04
Covered when it fails
Contract clients get the emergency line with same-day response for no heating, no hot water or leaks, from the same team that knows your plant.
A photographed PDF report after every visit
No handwritten job sheets and no chasing. Our engineers complete each job electronically on site in Maintivo, our job management system, so the report is built as the work happens: photos, readings, work done and recommendations.
You receive it as a digital PDF by email the same day, with certificates attached where they apply, ready to forward to a landlord, a freeholder, the directors or an insurer.
- Before and after photosEvery unit and fault photographed on site
- Readings and checksTemperatures, pressures and test results recorded
- Work done and next stepsWhat was fixed, what needs quoting, when we return
- Sent the same dayDigital PDF report by email, ready to forward
HVAC, Air Conditioning & Heating Services
Air conditioning, HVAC, FCU, HIU, CIU, MVHR and boiler systems, including expert HIU maintenance in London and building management services, specialist maintenance to keep your building comfortable year-round.

HVAC Maintenance
Complete air conditioning and heating maintenance for London properties
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Air Conditioning
AC installation, servicing and repair by F-Gas certified engineers
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FCU Maintenance
Fan Coil Unit servicing for optimal climate control
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HIU & CIU Service
Heat Interface Unit and district heating specialists
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MVHR Maintenance
Ventilation with heat recovery for air quality
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Boiler Services
Boiler maintenance and repair via Gas Safe registered engineers
Learn MoreSound Familiar?
These issues affect thousands of London properties. Here's how we fix them.
Tenant complaints about temperature?
Our FCU and HVAC maintenance ensures consistent comfort year-round
Energy bills climbing?
Professional servicing cuts energy waste by up to 15%
Emergency breakdowns disrupting operations?
Planned maintenance catches most failures before they happen
Poor air quality affecting health?
MVHR and filter maintenance keeps airborne particles out of the home
One call handles it all
Stop juggling multiple contractors. Get a single point of contact for all your property maintenance needs.
Full Property Care
One contract, one point of contact. Air conditioning, compliance certificates, plumbing & electrical, smart home, BMS installation & maintenance in London, building systems, handyman and property renovation across London.

Compliance Certificates
CP12, EICR, TM44, PAT and F-Gas: coordinated under one contract.

Plumbing & Electrical
Certified plumbers and electricians. CP12 via Gas Safe registered engineers.

Handyman
General repairs, minor maintenance and property odd-jobs.

Smart Home
Smart heating, lighting and controls, professionally installed.

BMS
Building Management System setup, servicing and optimisation.

Building Systems
Integrated building services: mechanical, electrical and controls.

Heat Pump Servicing
Servicing, repair and controls optimisation for air source and ground source heat pumps.

Property Renovation
Refurbishments and fit-outs across Greater London.

Fully-Equipped Vans, On the Road Across London
Our branded vans cover Greater London, stocked to handle air conditioning, HVAC, boilers, MVHR, plumbing, electrical, smart home and handyman work, often first-time-fix. Same-day emergency response available.
Stop Paying for Breakdowns
Our maintenance contracts save money, reduce stress, and protect your reputation.
Protect Your Investment
Professional maintenance protects your health, your finances and your property's long-term value.
Financial Protection
Reduce energy and repair costs
Ultimate Comfort
Consistent temperature year-round
Health & Wellness
Better air quality for occupants
Property Value
Protect your investment
Ready to Protect Your Property?
Discover how much you could save with professional maintenance.
Why Choose Mainteniq?
We combine air conditioning and heating expertise with full property maintenance services, delivering comprehensive solutions that protect your rental investment and keep tenants happy.

SAV
Certified HIU Engineers
Gas Safe
Engineers
Same day
Emergency Response
10yr
Warranty
What customers say on Google
“I've had the pleasure of working with Petru and his team on a number of maintenance jobs, and they've always been fantastic. They're professional, reliable, and complete every job to a really high standard.”
Deborah L.
Google review
“Excellent service. Price assessment: reasonable price.”
Attila B.
Google review
“Petru is incredibly knowledgeable and it's clear he takes pride in his work.”
Google reviewer
Google review
Ready to protect your property?
Get professional maintenance for HVAC, plumbing, electrical, BMS and more, comfort, efficiency and peace of mind.


