HVAC and Block Maintenance Company in London: the team landlords and managing agents actually trust
Mainteniq is a Westminster-based property maintenance company covering Greater London. We specialise in service and maintenance for HVAC, MVHR, HIU & CIU, fan coil units and building systems, keeping residential, commercial and multi-unit properties running efficiently long-term.
Our core services are HVAC maintenance in London, HIU servicing for residential blocks, BMS installation, planned maintenance contracts and emergency HVAC repair, with compliance certificates coordinated on the same schedule.
1000+
Happy Customers
15+
Years in Maintenance
2500+
Assets Maintained
Why Work With Mainteniq
We combine specialist HVAC expertise with full property maintenance, one team, one contract, one call.
Gas Safe Work Covered
All gas regulated work: CP12, boiler servicing, gas appliances: is carried out by Gas Safe registered engineers on behalf of Mainteniq.
F-Gas Certified
All air conditioning engineers are F-Gas certified under UK regulations.
Fully Insured
Public liability insurance in place for every job, certificate available on request.
Planned & Reactive
PPM contracts plus emergency response: all under one roof.
Specialist HVAC Focus
Deep expertise in FCU, HIU, CIU, MVHR and BMS systems.
Digital Reports
Photographic evidence, checklists and recommendations after every visit.
Who We Serve
Landlords
Portfolio & single-property landlords across London
Airbnb Hosts
Short-let operators needing reliable, fast service
Property Managers
Block management and property management companies
Build-to-Rent
BTR operators and housing associations
How a Maintenance Partnership Works
From initial assessment to ongoing care and transparent reporting, here's how we keep your systems performing.

Site Assessment
Asset survey and condition review to prioritise maintenance needs

Planned Maintenance
PPM schedule aligned to manufacturer guidance and building usage

Rapid Response
Same-day call-outs with first-time fix approach for breakdowns

Reporting & Review
Clear digital reports, recommendations and ongoing optimisation
Service Excellence Standards
Our commitment to exceptional service is backed by measurable standards and guarantees.
Same-Day Emergency Response
Emergency calls answered live and an engineer on site the same day
Quality Assurance
Multi-point inspection on every job with a photographed report through Maintivo
Professional Standards
All technicians certified, background checked, and continuously trained
Customer Service Excellence
Dedicated support team and transparent digital reporting after every visit
Maintenance Results & Impact
Lower Bills
Energy Savings
Clean coils, correct set points and tuned controls cut the energy a building wastes every month
Gas Safe
Work Covered
All gas regulated work delivered via Gas Safe registered engineers. F-Gas certified (REF1024168) for all refrigerant and air conditioning work.
First Visit
Fix It Once
Engineers arrive with the common parts for HIUs, FCUs and MVHR so most faults are resolved on the first visit
Certifications & Credentials
Every engineer carries their certification documentation on site.
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Digital Job Tracking & Reporting
Mainteniq runs on Maintivo, field-service software built for small teams. We use it to schedule planned maintenance, log inspections and work orders, and deliver clear digital reports. Every visit is recorded, so you always have an up-to-date history of the work carried out on your property.