If you manage blocks or tenancies in Central London, you already know that the trade skill needed to fix a dripping valve is not what makes a contractor useful to you. Plenty of competent trades are unusable in a managed portfolio, because they cannot be booked, cannot be located, cannot explain what they found, and cannot be recharged against.
This page is about the operational side of that — what the job looks like from the desk rather than from the van, and what has to be true for a maintenance contractor to actually reduce your workload instead of adding to it.
The real cost is coordination, not labour
A leak reported at nine in the morning does not cost you an hour of a plumber's time. It costs you the call to the tenant, the call to the leaseholder below, the check on who holds keys, the question of whether it is demise or communal, the instruction, the chase, the report, the invoice, the recharge decision, and the two follow-up emails from the leaseholder asking why it took three days. The repair is the smallest line in that list.
Which means the useful measure of a maintenance contractor is not their rate. It is how many of those steps they remove. A trade that turns up when it says, gets access itself, photographs what it found, tells you plainly whether the cause sits inside or outside the demise, and gives you something you can forward — that trade is cheaper at a higher rate than one who needs managing.
Access is the thing that fails
Across a Central London portfolio, most failed appointments are access failures rather than trade failures. Tenants who agreed to be in and aren't. Key safes with the wrong code. Keys held by a letting office that closes before the appointment. Porters who won't release access without written instruction. Blocks that require notice you didn't know about. Occupied flats where the occupier hasn't been told at all.
The practical fixes are unglamorous and they work:
- Confirm access at the point of instruction, not at the point of attendance. Who is opening the door, who has told them, and what happens if they aren't there.
- Establish the key position once per property, not per job. Where they are, who holds them, whether the porter can release them.
- Tell the porter before the contractor arrives. In portered blocks this alone prevents a large share of wasted visits — see our guide on porter access for mansion block works.
- Give the contractor the occupier's contact. A trade who can call ahead an hour before arrival converts far more first visits than one who can't.
- Be explicit about what an aborted visit costs. Everyone behaves better when this is known in advance rather than argued afterwards.
Demise or communal: the question behind most disputes
In leasehold blocks, the substantive question in a repair is often not what is broken but who owns it. A leak through a ceiling in a Marylebone mansion block might be the flat above's failed seal, a communal stack, a failure in the fabric, or a roof. The repair is different in each case, and so is the payer.
The boundaries are set by the lease and they are not consistent between buildings — the treatment of pipework within the structure, of windows, of the ceiling void, and of anything running through a riser varies from lease to lease. So the honest position for a contractor is to establish and evidence where the failure is, and leave you to determine whose responsibility that is under the specific lease. A contractor who volunteers liability opinions is doing you no favours; a contractor who cannot tell you where the water is coming from is doing you less.
What you need from the attendance is: the location of the failure, whether it sits within the flat's demise or outside it, whether it is live or historic, what has been done to make it safe, and what it will take to fix properly. That is a paragraph and four photographs, and it is what turns a repair into a decision you can make.
Evidence you can forward
Everything a managing agent does is re-read later — by a leaseholder, by a landlord, by an auditor at service-charge time, sometimes by a solicitor. So the output of a maintenance visit needs to survive being forwarded.
In practice that means photographs taken before work starts, not after; a plain-English note of what was found and what was done; a clear statement where a further specialist or a larger scope is needed; and a quote for that further work that stands on its own. It also means the contractor not doing extra work unasked and invoicing for it, which is the fastest way to destroy your ability to recharge.
Where a repair turns out to be the start of something larger and communal, the size of the job matters procedurally as well as financially. Works over the statutory threshold per leaseholder trigger Section 20 consultation under the Landlord and Tenant Act 1985, and you will need scope and costs in a form that stands up to that process — which is a very different document to a reactive repair invoice.
Compliance: the two that are not negotiable
For rented stock, two requirements are well established and worth stating plainly because they set the rhythm of a managed portfolio.
- Electrical Installation Condition Report (EICR) — required for privately rented homes in England at least every five years under the Electrical Safety Standards in the Private Rented Sector (England) Regulations 2020, with remedial work following where the report requires it. Our guide to EICR landlord requirements covers what the report actually says and what the codes mean.
- Annual gas safety check — required under the Gas Safety (Installation and Use) Regulations 1998, with a record provided to the tenant. See our page on gas safety certificates in London.
Both are published prices, which matters more to an agent than to anyone else, because you are not spending your own money and every figure you instruct has to survive being read back by a landlord or a leaseholder. Excluding VAT: a gas safety certificate is £85. An EICR is £150 for a one bed, £170 for a two bed, £190 for a three bed, and £210 for four bedrooms and above.
Being able to state that at the point of instruction removes an entire round of correspondence. You are not asking for a quote, waiting, forwarding it, waiting again, and then booking against a landlord's approval — you are booking, and the figure is the figure whether the flat is in Marylebone or Maida Vale and whether it is booked in April or the day before expiry. For a portfolio running dozens of these a year, that is the difference between compliance as a schedule and compliance as a correspondence chain.
The caveat is worth stating to landlords up front, because it is where the awkward email comes from later: the EICR price is the inspection and the report. If it comes back unsatisfactory, the remedial work is separate, itemised, and quoted after the fault is known rather than guessed at before. Set that expectation at instruction and the second conversation is routine. Skip it and the second conversation is a complaint.
Beyond those two, the regulatory picture around rented homes, hazards and disrepair has been moving, and requirements have tightened in recent years. That is not something to take from an article — take current advice on where the obligations sit for your specific stock and tenure.
The operational point is that both of the above are predictable. They have dates. A portfolio that runs them as planned work rather than as reactive panic is a portfolio with fewer emergencies, and the same is true of most things that break.
Emergencies are a category, not an adjective
Every managed portfolio has a definition problem around the word emergency, and it is worth settling rather than relitigating at eight on a Friday evening. The genuinely urgent categories are narrow: uncontrolled water, no heat or hot water in cold weather, an electrical fault, loss of security to the property. Those need attendance regardless of convenience, because they cause damage or risk while you wait.
Everything else is urgent or routine, and both are respectable. A tenant's blocked basin is not an emergency, but it becomes one in their telling if nobody responds for a week. Most escalation is caused by silence rather than by delay — an acknowledgement and a date defuses almost everything, and it costs nothing.
The useful discipline is separating attendance from resolution. A contractor who reaches a leak quickly, isolates it and makes it safe has done the urgent part properly even if the repair waits three days for a part. Measuring the trade on resolution time instead of attendance rewards bodging, and in prime stock a bodged repair is a second job.
Reactive and planned are different disciplines
Reactive work is judged on response and diagnosis. Planned work is judged on programme and finish. Most portfolios treat everything as reactive by default, then wonder why costs are lumpy.
The things that reliably repay being planned in Central London stock: stopcock and valve condition before you need them in an emergency, extract fans and their ducting before condensation becomes a complaint, sealant and grout lines before they let water into the flat below, and certification before it lapses. None of these are exciting. All of them are cheaper on a Tuesday than at seven on a Friday evening.
What makes a contractor usable across a portfolio
- One point of contact who knows all your instructions, not a rota.
- A fixed quote before work, so you can decide and recharge cleanly.
- Published, consistent prices so a repair does not need a negotiation — our maintenance, plumbing and electrician call-outs start from £80, gas safety certificates are £85, EICRs £150 to £210 by bedroom count, bathroom installation labour from £2,800, and larger refurbishment by quotation. All prices exclude VAT.
- Photographs and a plain report by default, not on request.
- An understanding of blocks — porters, lifts, protection, hours, waste — so you are not fielding complaints about the contractor as well as the defect.
- Trades who behave in an occupied home, because in Central London it is nearly always occupied.
How we work with agents
We are set up for the way managing agents and letting teams actually work: instruct by message or photograph, get a fixed quote back, approve it, and get a report and photographs at the end. One contact for everything, set prices you can plan against, and no invoices for work you didn't approve.
If you handle multiple buildings and want to see how we handle scheduling, access and reporting across a portfolio, our page for estate agents sets it out, and you can see the Central London postcodes we cover on our areas page. To put a first job through, send us the details.