14 Rivera Drive, Southend-on-Sea SS1 2RBinfo@avanzaheatingandcooling.co.uk Open 24/7Company No. 17201187 About Heating & Cooling Bathrooms Areas Contact 01702 967120Request Quote - Home - Services - Landlord Gas Safety Certificates (CP12) Landlord Gas Safety Certificates (CP12) · Essex # Landlord Gas SafetyCertificates (CP12)Same Day. Essex Wide. Annual CP12 Landlord Gas Safety Certificates booked, inspected and emailed the same day. Single rentals or portfolio block-bookings. Gas Safe registered, fully insured, fixed price per property. Request Free Quote 01702 967120 15+ years on the tools · Gas Safe registered · Open 24/7 · Same-Day Service Same-Day CP12 Certificate Gas Safe Registered Portfolio Bookings Welcome Fully Insured 1-Year Workmanship Guarantee Service Overview ## Landlord Gas Safety Certificates (CP12) — What, Who, When & Why. Owner-led by Pierre Codarin from Southend-on-Sea. Single point of contact from first call to final invoice. What it is A CP12 (Landlord Gas Safety Record) is a legally-required annual inspection of every gas appliance, flue and pipework in a rented property, signed off by a Gas Safe-registered engineer. Avanza books, attends, inspects, and emails the signed certificate the same day. Who it's for Private landlords, letting agents and HMO operators across Essex. From a single buy-to-let flat to a 40-property portfolio — we scale. When you need it Every 12 months, ahead of the expiry date on the current certificate. We diary the renewal so you don't have to remember. Also required before any new tenancy starts and within 28 days of any new gas appliance being installed. Why hire a professional Under the Gas Safety (Installation and Use) Regulations 1998, landlords are legally responsible for the safety of gas appliances in let properties. A missing or expired CP12 is a criminal offence with unlimited fines and, in the worst cases, imprisonment. It also voids landlord insurance. The Real Cost Of Getting This Wrong ## What Happens If You Ignore It, Delay It, Or Hire The Wrong Person. A missed CP12 is not a paperwork issue — it's a legal, financial and safety issue, and the consequences land squarely on the landlord. ### If It's Ignored — The Damage Cascade - Renting out a property without a valid CP12 is a criminal offence with unlimited fines under the Gas Safety Regulations. - Landlord insurance is immediately void in the absence of a current CP12 — any tenant injury becomes a personal liability. - Section 21 (no-fault eviction) notices are invalidated where a CP12 hasn't been served on the tenant at the start of the tenancy. - In the worst cases of carbon monoxide poisoning from an unchecked appliance, landlords have faced prison sentences for corporate manslaughter. ### Common Mistakes We're Asked To Fix - Letting the certificate expire mid-tenancy and trying to backdate — engineers cannot legally backdate CP12s. - Booking a 'cheap CP12 only' service that doesn't lift covers or check flues properly. - Forgetting to issue the certificate to the tenant within 28 days of inspection (and at the start of a new tenancy). - Assuming the previous landlord's certificate is still valid on a new purchase — it isn't; you need a fresh one in your name. Our Process ## A System That Gets Built To Specification — Not To A Mood. - 01 ### Book Call or email with property address, tenant contact details, and number of gas appliances. We confirm an inspection slot — often within 48 hours. - 02 ### Diary & Tenant Liaison We coordinate access directly with the tenant where instructed — no toing-and-froing through you. - 03 ### On-Site Inspection Typically 45–75 minutes per property. Every gas appliance, flue, pipework and emergency control inspected against current Gas Safety Regulations. - 04 ### Same-Day Certificate Signed CP12 emailed to landlord, letting agent and tenant on the day of inspection. Photographs of any defects included. - 05 ### Renewal Reminder We diary the renewal date and email you 30 days before expiry. One less thing to track. Benefits ## Concrete, Specific, Measurable. No Vague Promises. ### Same-Day Certificate Inspection completed and CP12 emailed the same day — no waiting for paperwork. ### Tenant Coordination Handled We talk to the tenant directly to book access — you don't have to be the middleman. ### Portfolio Bookings Block bookings for letting agents and portfolio landlords get priority scheduling. ### Renewal Reminders Automatic 30-day reminder before expiry — never miss a renewal. ### Defects Quoted On Site Anything that fails inspection gets a free written quote on the day, price-fixed for 14 days — no separate visit needed. ### Fully Insured Engineer Gas Safe registered and fully insured. Certificates available on request. Inside The Detail ## The Materials, Methods & Variations That Decide The Outcome. These are the details cheaper installers skip — and the reason their work fails inside two years. Working across Southend-on-Sea · Chelmsford · Basildon · Colchester · Brentwood · Rayleigh · Wickford · Billericay · Harlow Full Service Area List ### What A CP12 Inspection Covers Every gas appliance (boiler, hob, oven, gas fire) is checked for: tightness of the gas pipework, correct flue operation, satisfactory combustion (CO/CO₂ ratio), adequate ventilation, safe location, and effective operation of safety devices. Each appliance is recorded individually with a pass/fail and any defects noted. The certificate also notes the location of the emergency control valve. ### HMOs & Multi-Tenant Properties Houses in Multiple Occupation (HMOs) require the same annual CP12 as single-let properties, plus additional checks where shared appliances are present in communal areas or shared bathrooms. We work with HMO operators across Essex and coordinate inspections to minimise tenant disruption — typically completing a 6-bed HMO in 90 minutes. ### New Tenancies & New Appliances A copy of the current CP12 must be issued to a new tenant before they take occupation. If a new gas appliance is installed during a tenancy, a fresh inspection is required within 28 days. Failing either obligation invalidates any future Section 21 notice. We can fast-track a CP12 for pre-tenancy turnover — often within 24 hours. ### Failed Inspections & Repair Work If any appliance fails the inspection — typically due to combustion, ventilation or flue issues — we'll quote the repair in writing on site. Where the issue is dangerous (CO leak, gas leak, unsafe flue), the appliance is isolated and tagged immediately, and a follow-up repair visit booked within 24–48 hours. Re-inspection and a fresh certificate issued on successful repair. Questions ## StraightAnswers. Cost, timeline, guarantees, lifespan, emergency cover — answered without the sales speak. Ask Yours ### How much does a CP12 Landlord Gas Safety Certificate cost in Essex? +Every CP12 is priced from the property and appliance count after a quick free call — we don't list a 'from' figure because the right number depends on the gas appliances in the property and access. Quotes are free and price-fixed for 14 days; portfolio landlords get priority scheduling. ### How long does the inspection take? +Single-appliance property 30–45 minutes. Boiler + hob property 45–75 minutes. HMOs 60–120 minutes depending on size. Certificate emailed the same day. ### Do you coordinate access with the tenant? +Yes — we liaise directly with the tenant to book a mutually convenient slot, sparing the landlord or agent the back-and-forth. We just need the tenant's contact details on booking. ### What happens if an appliance fails the inspection? +Dangerous appliances are isolated and tagged immediately. Non-dangerous defects are noted on the certificate with a written repair quote. We can usually book the repair within 24–48 hours and re-issue a fresh certificate on completion. ### Can you do a CP12 between tenancies on a same-day basis? +Yes — turnover bookings are prioritised. Often within 24 hours of the call. ### Do you handle letting agents and portfolio landlords? +Yes — letting agents and portfolio landlords get priority booking and scheduled access coordination. Call to discuss. ### Do you cover my postcode in Essex? +Yes — we work across Southend-on-Sea, Chelmsford, Basildon, Colchester, Brentwood, Rayleigh, Wickford, Billericay and Harlow. If you're outside that ring, call 07809 414913 and we'll confirm coverage before you spend a minute filling in a form. ### Are you Gas Safe registered and fully insured? +Yes. Gas Safe registered for all gas work, fully insured, and trading as Avanza Heating & Bathrooms Ltd (Companies House 17201187). Gas Safe is our only listed accreditation. Certificates and policy numbers available on request before any work starts. Related Services ## Often Booked Alongside Landlord Gas Safety Certificates (CP12). ### Boiler Installation & Servicing Gas Safe boiler installs, swaps, repairs and annual servicing. View Service ### Heating & Plumbing Full heating systems, radiator upgrades and general plumbing — our core trade across Essex. View Service ### Emergency Plumbing Leaks, bursts, no heat, no hot water — rapid response across Essex. View Service Back to HomepageAll ServicesAll Service AreasContact Next Step ## Book Your CP12. Certificate Emailed Today. Gas Safe registered. Tenant access coordinated. Single property or full portfolio. Request Free Quote 01702 967120 Gas Safe registered · Fully insured · 1-year workmanship guarantee · Companies House 17201187 · Southend-on-Sea Premium bathrooms, heating and plumbing across Essex. Owner-led, Gas Safe registered, same-day service guaranteed. 01702 967120info@avanzaheatingandcooling.co.uk14 Rivera Drive, Southend-on-Sea, SS1 2RB Explore - About - Heating & Cooling - Bathrooms - Areas - Contact Services - Heating & Plumbing - Boiler Installation & Servicing - Emergency Plumbing - Underfloor Heating - Landlord Gas Safety Certificates - Luxury Bathrooms Service Areas - Southend-on-Sea - Chelmsford - Basildon - Colchester - Brentwood - Rayleigh - Wickford - Billericay - Harlow © 2026 Avanza Heating & Bathrooms Ltd. Company No. 17201187. All rights reserved. Privacy PolicyTerms & ConditionsOpen 24/7 · Emergency call-outs · Call by 12pm, engineer with you by 4pm Call NowRequest Quote