Most pre-tenancy maintenance problems start because the checks are left until the last week, or worse, the morning before the new tenant arrives. A dripping trap, loose socket, stiff lock or failed boiler pressure test might look small on its own, but once someone has moved in it becomes a disruption, a complaint and often an avoidable call-out.
For London landlords, the stakes are higher because many rental properties are older flats, converted houses, mansion blocks and period terraces with shared services, awkward access and ageing pipework. A quick wipe down and a fresh set of keys is not enough if the electrics, plumbing, heating, locks and fabric of the property have not been properly checked.
A Landlord’s Pre-Tenancy Maintenance Checklist should catch defects before they become tenant issues. It should also protect the landlord by creating a record of what was inspected, repaired and handed over in safe working order.
Understand Why Pre-Tenancy Checks Matter
A vacant period between tenancies is usually the cheapest and least disruptive time to repair a property. Floors can come up, water can be turned off, paint can dry and trades can work without moving furniture or arranging access around a tenant’s shifts.
The common mistake is treating maintenance as cosmetic only. In practice, the unseen items cause the biggest problems: slow leaks under kitchen units, loose earth connections, blocked bath wastes, tired door closers, failed extractor fans and boilers that have not been serviced before winter.
There are also legal duties to keep straight. Gas appliances must be checked by a Gas Safe registered engineer every 12 months, most rented homes need an Electrical Installation Condition Report at least every 5 years, and smoke and carbon monoxide alarm rules must be followed before occupation. If safety is involved, arrange a professional inspection rather than relying on a visual look-over.
Confirm Legal Safety Certificates First
Start with the paperwork because a missing certificate can delay a move-in even if the flat looks perfect. Check the Gas Safety Record, EICR, EPC, smoke alarms, carbon monoxide alarms where required, and any fire door or communal fire safety requirements that apply to the building.
A typical gas safety check for a standard London rental is often around £90 to £160, depending on appliances and access. An EICR commonly sits around £180 to £350 for a one or two-bedroom flat, more for larger houses, older fuse boards or complex circuits. If the EICR returns a C1 or C2 fault, it needs remedial work before the tenancy starts.
Keep digital copies and note expiry dates in the tenancy file. We often see landlords discover an expired certificate only when the tenant or managing agent asks for it, which puts everyone under pressure.
Test Plumbing Under Normal Use
Run every tap, shower, bath waste, basin waste, WC and appliance connection as if the tenant is already living there. Do not just turn the taps on for a second. Fill the basin, release the plug, flush the WC twice and check under the units with a torch while water is moving.
In Kensington and Chelsea flats, we regularly find minor leaks from compression joints, old isolation valves, flexible tap connectors and washing machine hoses hidden at the back of units. A small plumbing repair might cost £95 to £180 if caught early, while a leak into the flat below can run into hundreds or thousands once ceilings, electrics and decorations are affected.
Check stopcocks and isolation valves as part of the same visit. If a tenant cannot turn the water off in an emergency because the stopcock is seized behind a boxed-in panel, a small leak becomes a far bigger claim.
Inspect Electrics and Fixed Fittings
Walk the property room by room and test sockets, switches, extractor fans, light fittings, bathroom pull cords, shaver points and any hardwired appliances. Look for cracked faceplates, warm sockets, buzzing dimmers, loose pendants and scorch marks around plugs.
Electrical work in rented property should be treated seriously because Part P of the Building Regulations applies to certain domestic electrical work, especially in kitchens, bathrooms and new circuits. If you find signs of overheating, tripping RCDs or exposed conductors, stop using that point and call a qualified electrician.
Basic small electrical repairs may be in the region of £95 to £180 plus parts, while consumer unit upgrades or remedial EICR works vary widely depending on the installation. Our Electrical Services team can test, repair and document the work properly where a visual check is not enough.
Service Heating, Hot Water and Ventilation
Test the heating from cold, not just by checking that the thermostat lights up. Let the boiler fire, feel several radiators, check pressure, look for leaks at valves and confirm hot water arrives at taps within a reasonable time.
Many London flats sit empty for a few weeks between tenants, especially over summer, and faults only show once colder weather arrives. Sticking radiator valves, low boiler pressure and failed diverter valves often reveal themselves during the first proper heating demand in October or November.
Gas boiler work must be handled by a Gas Safe registered engineer. A boiler service commonly costs around £90 to £140, while a like-for-like part replacement can range from about £180 to £450 depending on the component. For gas appliances, use our Gas Engineers rather than attempting any adjustment yourself.
Secure Doors, Windows and Locks
Open, close and lock every external door and window. Check that keys turn smoothly, multi-point locks engage fully, sash window catches meet correctly and patio doors do not lift out of alignment.
This is also the time to change or rekey locks if previous keys may still be in circulation. A straightforward lock change is often around £95 to £180 depending on the cylinder or mortice lock, with higher costs for specialist security locks or out-of-hours attendance.
Older London properties often have swollen timber doors, painted-over sash fasteners and worn communal entrance mechanisms. If the door needs lifting, planing, hinge work or frame adjustment, do it before the tenant moves in rather than waiting until they are locked out on a wet evening.
Repair Joinery, Floors and Everyday Wear
Check loose floorboards, split skirting, broken cupboard hinges, sticking drawers, loose curtain battens, damaged thresholds and wobbly handrails. These small defects are the items tenants touch every day, so they quickly become complaints if they are left.
A handyman visit for minor repairs can often sit around £120 to £280 depending on time on site and materials. More involved carpentry, such as repairing a rotten window section or rebuilding damaged shelving, will cost more but is usually easier to do before furnishings and tenant belongings are in the way.
Victorian and Edwardian conversions often have uneven walls, shallow fixings and older timber that has been patched several times. Our Carpentry Services team will check what is behind the surface before fixing shelves, rails or doors, rather than just driving in longer screws and hoping they hold.
Make Good Walls, Sealants and Decorating
Look carefully at wet areas first: bath edges, shower trays, basin backs, kitchen worktop upstands and around windows. Split silicone, missing grout and soft plaster near tiles are early signs that water is getting where it should not.
Replacing silicone neatly around a bath or shower might cost around £120 to £250 depending on removal and drying time. Regrouting a small shower area may be around £180 to £400, while full redecoration of a one-bedroom flat in London can easily run from £900 to £2,500 depending on condition, ceilings, woodwork and paint specification.
Do not paint over damp staining without finding the source. If the stain is from an old fixed leak, stain-blocking and repainting may be fine. If the plaster is still damp, decoration will fail and the tenant will rightly report mould or peeling paint soon after moving in.
Check Roofs, Gutters and Outside Areas
For houses, top-floor flats and maisonettes, check visible roof coverings, gutters, downpipes, gullies, balconies and light wells. In London terraces and converted buildings, water often finds its way in through cracked render, failed leadwork, blocked hopper heads or overflowing rear gutters.
Gutter clearing might cost around £90 to £180 for straightforward access, while roof repairs can vary from £180 for a minor tile or slate issue to £600 or more where access, scaffolding or leadwork is involved. If access is unsafe, do not send a handyman up a ladder to guess the problem.
Leaks reported after move-in are harder to investigate because furniture, carpets and tenant routines are now involved. Our Roofing Services team can inspect suspected roof and gutter faults before a small rainwater issue becomes internal damage.
Photograph, Record and Hand Over Properly
Once repairs are complete, photograph the finished condition of each room, the meter readings, boiler pressure, fuse board, smoke alarms, keys and any appliance serial plates. This record helps with inventory disputes and gives the tenant a clear starting point.
Leave simple notes for shut-off points, boiler controls, extractor fan isolators, bin storage, communal doors and any quirks of the property. A tenant who knows where the stopcock is and how the heating programmer works is less likely to panic and more likely to report a genuine fault accurately.
If a contractor has completed work, keep invoices and any certificates with the tenancy documents. This is not just admin. It proves that issues were handled properly and helps future trades diagnose problems faster.
Plan the Timing Around Access, Drying and Move-In Dates
Allow at least two weeks between tenancies where possible, especially if the property needs decorating, plumbing repairs or electrical remedial work. Paint and filler need drying time, silicone needs curing time, and parts for older fittings are not always available the same day.
Book gas and electrical checks early because remedial work may follow. If an EICR finds an issue with bathroom bonding, damaged accessories or an old consumer unit, the repair may take another visit and sometimes power downtime.
For furnished lets, inspect behind and under furniture before the inventory is prepared. We often find old water marks under washing machines, loose bed frames, damaged castors and radiator leaks hidden by sofas. It is much easier to fix these before the tenant has signed to say the property is ready.
Build a small maintenance allowance into each changeover. For a typical London flat, a sensible pre-tenancy refresh can range from £250 for minor checks and fixes to £1,500 or more if decorating, plumbing, carpentry and compliance work are all needed. The exact figure depends on the property, but doing nothing usually costs more once faults interrupt the tenancy.
Frequently Asked Questions
Q1: How early should a landlord start pre-tenancy maintenance checks?
Start as soon as the previous tenant gives notice if access allows. Two to three weeks gives enough time for inspections, quotes, parts and drying time if decorating or sealant work is needed.
Q2: Can a landlord do the checklist themselves?
A landlord can do basic visual checks, cleaning, testing taps and noting defects. Gas work, many electrical issues, suspected leaks, roof access and safety defects should be handled by qualified professionals.
Q3: Is an EICR needed before every new tenancy?
Not usually if a valid EICR is already in date, but rented homes in England generally need one at least every 5 years. If there has been damage, flooding, major work or repeated tripping, arrange a fresh electrical inspection.
Q4: What are the most common pre-tenancy repairs in London flats?
We most often see leaking wastes, tired silicone, loose sockets, broken extractor fans, sticking locks, swollen timber doors and boiler pressure faults. Older conversions also tend to have uneven floors and ageing pipework.
Q5: How much should landlords budget for a pre-tenancy maintenance visit?
For minor checks and small repairs, allow roughly £250 to £600. If certificates, decorating, plumbing repairs and electrical remedial work are needed, the total can move beyond £1,500 depending on the condition of the property.
A good pre-tenancy check is not about making a rental look perfect for photographs, it is about handing over a safe, working property with fewer surprises for the tenant and fewer emergency calls for the landlord. If you want a practical set of trades to go through the property properly, Kensington Maintenance Services Ltd can cover plumbing, electrics, gas, carpentry, decorating, roofing and general repairs, and you can get a quote from our team before the next set of keys is handed over.