A gas safety check is one of the most important legal obligations
a landlord has. Under the Gas Safety (Installation and Use)
Regulations 1998, every landlord must arrange an annual inspection
of all gas appliances in their rental property, carried out by a
Gas Safe registered engineer. The resulting Gas Safety Certificate
— known as a CP12 — must be renewed every 12 months and provided
to tenants within 28 days of the inspection.
Failure to hold a valid CP12 can result in fines of up to £6,000
per breach, criminal prosecution and, in the most serious cases,
manslaughter charges if a tenant is harmed.
What our gas safety inspection includes
— Full inspection of all gas appliances including boilers, gas
fires and gas cookers
— Flue and ventilation checks to ensure safe combustion and no
risk of carbon monoxide build-up
— Gas pipework and connection checks
— Operational safety testing of each appliance
— CP12 certificate issued on the day and uploaded to your client portal immediately
What happens if an appliance fails?
If any appliance is found to be unsafe, our engineer will classify
it as either At Risk (AR) or Immediately Dangerous (ID).
Immediately Dangerous appliances will be disconnected with your
permission and must not be used until repaired. DK Lettings
carries out all remedial works — you don't need to find a separate
contractor.
Who needs a CP12?
Every landlord renting a property with gas appliances in England,
Scotland or Wales is legally required to hold a valid CP12. Only a
Gas Safe registered engineer can issue a CP12 — a standard plumber
or heating engineer without Gas Safe registration cannot legally
carry out this inspection.
A boiler that fails mid-tenancy is one of the most disruptive and costly problems a landlord can face. Regular servicing extends boiler life, reduces the risk of breakdown and keeps your property's heating system running efficiently. DK Lettings provides the full range of boiler services, carried out by our own Gas Safe registered engineers.
A thorough inspection and clean to keep your boiler running at peak efficiency and maintain manufacturer warranty where applicable.
Fast response when things go wrong, with engineers across London and the surrounding areas.
Full supply and installation of new boilers where repair is no longer cost-effective, with all Gas Safe certification included.
Removes sludge and debris from your central heating system, restoring efficiency and extending the life of your boiler and radiators.
An annual boiler service is not a legal requirement for landlords — but it is strongly recommended. Regular servicing catches problems early, maintains efficiency, and provides a documented service history that protects you if a dispute arises. Every boiler service and repair is logged to your DK Lettings client portal.
Since April 2021, landlords in England have been legally required to hold a valid EICR for every rental property. The EICR is a comprehensive assessment of a property's electrical installations, carried out by a qualified and NICEIC-accredited electrician. Failure to hold a valid EICR can result in fines of up to £30,000 per property.
— Full visual inspection of all electrical installations
— Dead testing — insulation resistance, continuity and polarity checks
— Live testing — verification that circuits will shut down safely in the event of a fault
— RCD testing where applicable
— Full written report with condition codes for every circuit inspected
— Certificate issued and uploaded to your client portal the same day
— Must be resolved before the property can be rented. C2
— Potentially dangerous. Remedial work required within 28 days. C3
— Improvement recommended. Does not affect pass or fail. FI
— Further investigation required.
A property with C1 or C2 codes is classed as unsatisfactory and cannot legally be let until the issues are resolved. DK Lettings handles all remedial electrical works — once complete, we retest and issue an updated satisfactory report, documented in your client portal.
A standard one or two-bedroom flat typically takes 45 minutes to an hour. Larger properties can take two to four hours. A brief power interruption is required for each circuit tested.
If your rental property is furnished and includes portable electrical appliances, PAT testing is strongly recommended and may be required under your insurance policy. DK Lettings PAT testing is carried out by our NICEIC-accredited electricians, often combined with an EICR inspection to minimise tenant disruption.
Electric vehicle ownership is growing rapidly across London. Landlords who install EV charging points add genuine value to their property and appeal to a growing pool of professional tenants. DK Lettings installs OZEV-approved EV chargers, fully certified and compliant, with all documentation stored in your client portal.
From a dripping tap to a burst pipe, DK Lettings provides responsive plumbing repairs across London and the surrounding areas. Our engineers attend promptly, carry out the repair, and log everything to your client portal — a full maintenance record for every property.
Whether you are fitting out a new rental property or replacing an end-of-life heating system, DK Lettings designs and installs complete central heating systems — boiler, radiators, pipework and controls — all Gas Safe certified and documented from day one.
Heating failures, gas concerns and electrical faults don't follow business hours. DK Lettings provides emergency call-out cover for landlords and letting agents across London and the surrounding areas. Our Gas Safe and NICEIC-registered engineers respond quickly, carry out safe and compliant repairs, and document every attendance in your client portal.
Gas safety and electrical inspection in one visit, one invoice, all documents in your portal.
Full annual compliance in a single attendance — your two most time-sensitive legal requirements plus boiler health.
Bespoke packages for landlords managing multiple properties or letting agents managing multiple clients. Scheduled visits, consolidated invoicing and a single portal login covering your entire portfolio.
Every job DK Lettings completes is logged to your secure client portal the same day. Log in at any time to download your CP12, EICR, inspection reports and job history — for every property on your account, under a single login. No hunting through emails. No uncertainty about renewal dates. Just clean, organised compliance records, always ready when you need them.
Yes. Any gas appliance in a rental property — including gas cookers, gas hobs and gas fires — must be included in the annual gas safety inspection.
Yes — this is one of the key advantages of working with a full-service contractor. If your property fails a gas safety check or receives C1 or C2 codes on an EICR, DK Lettings carries out all remedial works directly.
Landlords are required to give tenants at least 24 hours written notice. DK Lettings manages tenant liaison directly — we contact your tenant, confirm the appointment and provide a 30-minute notice call on the day.
Yes, where practically possible. Our compliance packages are designed to combine your CP12 and EICR — and where applicable a boiler service — into a single visit.
DK Lettings serves landlords and letting agents across London and the surrounding areas including Middlesex, Surrey, Essex, Hertfordshire and Kent.
Backed by thirty years of VHL Mechanical engineering. Built specifically for landlords. Get your first quote today.