London Gas Safety Certificates

Gas Safety Certificates (CP12) in London

Gas Safety Certificates in London

Gas Safety Certificates London

Keeping your property safe and compliant in London shouldn't be a hassle. Whether you are managing a rental portfolio in the city or a family home in any London borough, our Gas Safe registered engineers deliver thorough inspections of your boiler, hobs, and pipework to meet all UK safety standards.

London’s fast-paced property market demands reliable, timely service. We provide efficient, documented gas safety certification for landlords and homeowners, ensuring your heating and appliances are operating safely and efficiently all year round.

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Gas Safety Certificate Inspection London
Gas Safe Registered & Certified
Serving All London Boroughs
24-72hr Certification

London Gas Safety Certificates

Mandatory annual CP12 landlord inspections for all London rental properties.

Your Legal Obligations

Landlords across London are legally responsible for the safety of all gas pipework, boilers, and appliances. We provide accredited safety testing to keep you fully compliant.

ANNUAL RENEWAL REQUIRED

28-Day Rule

Provide copies to existing tenants within 28 days and to new tenants before move-in to meet London's regulatory requirements.

The Inspection Process

Appliance TestingPressure and safety checks for all gas boilers and hobs.
Flue FlowEnsuring safe extraction of combustion products.
VentilationVerifying permanent airflow for combustion.
Tightness TestComplete system check for gas leaks.
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Gas Safety Standards in London

Everything you need to know about professional Gas Safety Certificates for properties across all London boroughs.

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What is a CP12?

A Gas Safety Certificate, or CP12, is the official record issued after a comprehensive safety inspection of your gas appliances. It proves your boiler, pipework, and flues comply with current UK safety regulations.

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When is it Required?

Landlords are legally obligated to have gas appliances inspected annually by a Gas Safe registered engineer. Homeowners in London are also encouraged to maintain this cycle to ensure optimal efficiency and insurance compliance.

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Safety and Compliance

Ensuring that gas appliances are properly ventilated and free from leaks is a critical safety measure. Failure to comply can lead to dangerous carbon monoxide leaks and severe legal consequences for property owners.

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Our Expert Network

First Certify coordinates with a trusted network of local professionals. Every engineer we dispatch across London is Gas Safe registered, fully insured, and highly experienced in local property requirements.

Industry Accreditations

All inspections follow rigorous safety protocols, ensuring your certificate is fully recognised by local authorities, letting agents, and property insurance providers throughout the capital.

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Simple Booking

Need a gas check completed promptly? Our streamlined booking system makes it easy to schedule your inspection in London, followed by the rapid digital delivery of your official certificate.

Compliance Check

Have you checked your records?

Check if you already have a Gas Safety Certificate or CP12.

Before booking a new inspection, it is worth checking your existing property documents to see if a valid Landlord Gas Safety Record (CP12) is already in place. These certificates must be renewed every 12 months for rental properties.

Ensuring you have a valid record can save you from paying for a new report unnecessarily. If you still require a new inspection, you can book online with us.

Check CP12 Requirements

London Property Compliance

Dedicated to maintaining the highest safety standards, we offer a comprehensive suite of property inspections including Gas Safety Certificates for landlords and homeowners across all London boroughs.

Gas Safety

Landlord Gas Safety (CP12)

Ensure total regulatory compliance. Our certified engineers provide thorough, annual CP12 inspections to verify that all gas appliances and flues in your London rental properties are safe.

Electrical

London EICR Inspections

Don't leave electrical safety to chance. We deliver detailed, professional EICR reports, ensuring your property's fixed electrical installations meet modern safety guidelines throughout the capital.

Energy

EPC Assessment

Required for selling or letting. Our accredited assessors provide fast, accurate EPC ratings, helping London property owners stay aligned with current energy efficiency standards.

Maintenance

Boiler Servicing

Extend the life of your heating system. We provide preventative annual boiler maintenance across London to ensure efficiency, safety, and consistent home comfort.

Appliances

PAT Testing

Protect your tenants and property. We provide reliable Portable Appliance Testing for all types of electrical equipment, ensuring your home or rental meets mandatory safety criteria.

Marketing

Professional Floor Plans

Improve your listing potential. We produce high-quality, accurate floor plans with precise measurements for all residential and commercial properties throughout London.

London Gas Safety FAQs

CP12 Explained

What is a CP12 Gas Safety Certificate?

A CP12 (Landlord Gas Safety Record) is the formal certification issued after a safety inspection by a Gas Safe registered engineer, confirming that all gas appliances, pipework, and flues in your property meet current UK safety standards.

Compliance

Who needs a gas safety check in London?

Landlords managing properties throughout London are legally obligated to provide a valid gas safety record for their tenants. Homeowners across the capital are also strongly advised to maintain annual checks to ensure family safety and preserve insurance validity.

How often must these checks occur?

To remain compliant with UK safety regulations, gas safety records must be renewed every 12 months by a qualified engineer.

The Inspection

What is covered in your London inspection?

Our engineers perform thorough burner pressure testing, flue gas analysis to detect carbon monoxide, ventilation adequacy verification, and full tightness testing on all internal gas pipework.

Safety Outcomes

What if an appliance is deemed unsafe?

If an appliance is classified as "At Risk" or "Immediately Dangerous," our engineers are legally required to advise that the appliance be disconnected. It must remain out of service until a qualified professional completes the necessary repairs.

Excellence as Standard

5.0 Average on Google Reviews
Professionalism100%
Value for Money100%
Communication100%
★★★★★
"Courteous, efficient and professional service from Matt. He was quick to respond to queries thoroughly and clearly. Highly recommend!"
★★★★★
"Lucy and Matt were brilliant. Knowledgeable, friendly and helpful after I was let down by another company. Excellent from start to finish."
★★★★★
"Booked gas safety, EICR and EPC for my rental. Easy online booking and payment. Professional service."
★★★★★
"Speedy response and 11/10 for courtesy. Communicative, polite and reasonably priced—better than estate agent's quote!"
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We’re looking for qualified assessors and engineers across Sussex, London & the UK to join our team. If you’re qualified to undertake EPCs, EICRs, Gas Safety Certificates, or floor plans and want steady work with a professional, well-organized company, we’d love to hear from you. We offer flexible work, competitive rates, and full support so you can focus on what you do best.

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