How much does a landlord gas certificate cost in Belfast?

Why we don't quote a CP12 sight unseen

A landlord gas safety certificate is a regulated inspection under the Gas Safety (Installation and Use) Regulations 1998. It's not "the boiler ticked off"; it's a check of every gas appliance in the property, with a written report.

A property with one boiler is a different inspection from one with a boiler plus a gas hob plus a fire. A single-let in BT5 is a different inspection from a four-bed HMO in the BT7 Holylands. A scheduled visit is a different cost from a "cert expired yesterday" emergency.

So we ask the four questions on the phone (appliance count, property type, urgency, single vs portfolio), agree the price in writing, then book. The price is fixed once agreed.

Seven things that move the price

1. 01Appliance count. A CP12 lists every gas appliance in the property: boiler, gas hob, gas fire, gas oven. Each is inspected and tested. A property with one boiler is a different price from one with a boiler plus a gas hob plus a fire.
2. 02Property count. One-off bookings cost more per property than portfolio bookings. If you've got eight properties on a single street in BT15, the per-property cost drops materially because the engineer isn't driving between visits.
3. 03Urgency. A scheduled CP12 booked four weeks before expiry is one price. A 'cert expired yesterday and the tenant has filed a complaint' CP12 is priced differently because we're displacing scheduled work to fit you in.
4. 04Property type. A single-occupancy let is straightforward. A House in Multiple Occupation (HMO) takes longer because of the tenant-coordination overhead and the multiple-room appliance check; a four-bed HMO is roughly twice the on-site time of a single let.
5. 05Repair scope. If the boiler fails inspection (no rare event on neglected stock), there's a separate repair quote. CP12 itself doesn't change in price; the repair is on top, agreed before any work starts.
6. 06Servicing bundled. A CP12 plus an annual service in the same visit is cheaper than two visits. We always quote both options at booking so you can see which makes more sense.
7. 07Landlord Plan annual fee vs ad-hoc booking. Plan customers get a fixed annual price across all covered properties, with renewal reminders and tenant-side booking rights. Ad-hoc bookings work fine for landlords with one or two properties; the Plan stacks up at five-plus.

The six questions to ask any quote

1. 01Is the certificate emailed the same day as the visit? Should be. Tenant compliance dates are firm; a five-day lag on the certificate puts you offside legally.
2. 02What happens if an appliance fails the inspection? Should be: classified 'At Risk' or 'Immediately Dangerous' under Gas Safe procedure, you get the report on the day, repair is quoted separately and you decide.
3. 03Do you handle tenant access yourself? Should be yes for landlord-plan customers (you give us tenant contact and authorisation, we coordinate). For ad-hoc bookings, you usually need to arrange tenant access.
4. 04How long is the slot? Single-let: 45-60 minutes. HMO: 90-120 minutes. Anything quoted significantly shorter is a red flag, the engineer can't actually run the inspection in less.
5. 05Does the certificate cover all appliances or just the boiler? CP12 covers all gas appliances. If it's only being issued for the boiler, you're not legally covered.
6. 06What's the renewal-reminder process? You should not be relying on memory. Every credible installer should have a system that flags six and four weeks before expiry.

The legal context, briefly

For Belfast and Northern Ireland landlords, the rules are not optional and the penalties for non-compliance are not paperwork-trivial.

1. 01A CP12 (Landlord Gas Safety Certificate) is a legal requirement under the Gas Safety (Installation and Use) Regulations 1998 (amended for NI) for any rented property with gas appliances.
2. 02Validity is twelve months from issue. New certificate must be issued before the existing one expires; back-dating is not permitted.
3. 03The landlord (or their agent) is legally responsible. Letting agencies handling property management on behalf of landlords usually take this on contractually.
4. 04A copy must be provided to existing tenants within 28 days of the inspection, and to new tenants before they move in.
5. 05Records must be kept for at least two years. Most landlords keep them indefinitely for due-diligence and sale-conveyance evidence.
6. 06Penalties for non-compliance include unlimited fines and, in cases of CO incidents linked to deferred inspection, custodial sentences. This is not a paperwork formality.

Single CP12 vs Landlord Plan

For a landlord with one or two properties, ad-hoc CP12 bookings work. We turn around within 48 hours, certificate emailed same day. You manage the renewal reminders yourself.

For five or more properties, the Landlord Plan stacks up materially. It bundles:

• Annual CP12 inspection on every covered property.
• Annual boiler service in the same visit.
• Automatic renewal reminders, six and four weeks before expiry.
• Tenant-side booking rights for emergencies on covered boilers.
• One fixed annual fee, agreed at the start of the year.

The Plan price depends on portfolio size, property mix and whether you want HMO coverage included. We agree it once a year, in writing.

Full Landlord Plan details

Letting agents and the cost question

If you're a Belfast letting agent managing a portfolio on behalf of multiple landlords, the cost question shifts. The Landlord Plan structure can be applied at agency-level, with one annual contract covering all managed properties and per-property reporting.

Worth a conversation rather than a website quote. We'd talk through your portfolio mix, your existing CP12 schedule, and what the agency wants visible vs what stays at landlord level.