Boiler Installations Derry Londonderry

Boiler Installation Derry Londonderry | Gas Safe Registered | JobDoneNI

Boiler Installation Derry/Londonderry

Gas Safe and OFTEC Registered Specialists Serving the North West

Your Local Boiler Installer in Derry/Londonderry

JobDoneNI provides professional boiler installation across Derry/Londonderry and the wider north west. Whether you need a gas combi swap, an oil boiler replacement, or advice on switching fuel type, we carry out every job to Gas Safe and OFTEC standards with no sub-contractors involved.

Derry/Londonderry is served by the SGN Natural Gas network, which supplies mains gas to the city and a number of surrounding areas. Where mains gas isn’t available, oil remains the primary heating fuel across much of the north west, and our OFTEC registered engineers handle both. If you’re on oil and considering a switch to gas, we can advise on whether your property and street are eligible for a connection.

Every installation comes with a full chemical system flush, magnetic filter, and all required certification. We’ll walk you through the building control notification process and make sure you understand exactly what documentation you’ll have at the end of the job.

Why Derry/Londonderry Homeowners Choose JobDoneNI

🔵 SGN Network Accredited Fully certified to carry out gas installations on the SGN Natural Gas network serving Derry/Londonderry.
🛢️ Gas and Oil Covered OFTEC registered for oil boiler work across areas where mains gas does not reach.
🔧 No Sub-Contractors Every job is carried out by our own registered engineers. No outsourcing, no surprises on the day.
💰 Fixed Price Guarantee A fixed quote is provided after a site survey. That is the price you pay.

Derry/Londonderry Boiler Installation Price Guide (2026)

Prices include VAT, A-rated boiler, magnetic filter, and system flush.

Service Type Estimated Cost Typical Timescale
Gas Combi Swap
Like-for-like replacement, A-rated		 £1,800 – £2,600 1 day
Oil Boiler Replacement
Condensing models, OFTEC certified		 £2,400 – £3,500 1 to 2 days
Oil-to-Gas Conversion
Full transition where SGN network available		 £2,800 – £4,200 2 to 3 days
System Upgrade
Controls, filter and flush only		 £450 – £800 Half day

*Prices are indicative. A fixed quote is provided following a site survey.

Areas Covered in the North West

We cover Derry/Londonderry city and the surrounding Derry City and Strabane District Council area, including:

🔥 Derry City (BT47, BT48)
🔥 Strabane (BT82)
🔥 Limavady (BT49)
🔥 Eglinton (BT47)
🔥 Claudy (BT47)
🔥 Castlederg (BT81)

Not sure if we cover your area? Call Mark and we’ll confirm straight away.

What’s Included in Every Installation

Chemical System Flush: Clears sludge and debris from your radiators before the new boiler goes in.
Magnetic Filter: Captures magnetite and metal particles to protect your new heat exchanger.
Smart Controls Setup: Nest, Hive, or Tado installed and configured for ErP compliance.
Gas Safe or OFTEC Certificate: Issued on completion. Required for home sales, remortgages, and rental compliance.
Building Control Guidance: We walk you through the notification process so you know exactly what is required and what paperwork to expect.

Thinking About Switching from Oil to Gas in Derry/Londonderry?

A significant number of properties in and around Derry/Londonderry are still on oil heating. As the SGN Natural Gas network continues to expand across the north west, more homes are becoming eligible for a mains gas connection.

An oil-to-gas conversion involves decommissioning your existing oil tank, installing a new gas combi or system boiler, and connecting to the mains supply. It is a more involved job than a straight swap, but for many households it results in lower running costs and a more convenient fuel supply. We’ll survey your property and give you an honest assessment of whether a conversion makes sense for your situation.

“The north west has a real mix of gas and oil properties, sometimes on the same street. Getting that right from the outset means knowing the SGN network coverage and being honest with customers about what a conversion actually involves.”

Mark Gunda, Gas Safe and OFTEC Certified Installer

Boiler Installation Derry/Londonderry — FAQs

Derry/Londonderry is served by the SGN Natural Gas network. JobDoneNI is fully accredited to carry out installations on the SGN network. If you are unsure whether your property has a mains gas connection, check your bills or call us and we can help you find out.
Yes. Our engineers are OFTEC registered and carry out oil boiler replacements across the north west. If you are considering switching to gas, we can advise on whether a connection to the SGN network is available at your address and what an oil-to-gas conversion would involve.
A like-for-like gas combi swap typically takes one day. Oil boiler replacements generally take one to two days. Oil-to-gas conversions are more involved and usually require two to three days depending on pipework and tank decommissioning.
Yes. We cover the wider Derry City and Strabane District Council area including Strabane, Limavady, Eglinton, Claudy, and Castlederg. If you are unsure whether we reach your address, give us a call and we will confirm.
Call Mark directly on 07984 433834. We will arrange a site survey and provide a fixed price. No vague estimates, no hidden costs.

Get a Fixed-Price Quote in Derry/Londonderry Today

Gas or oil, new install or replacement. Speak to a registered local specialist and get a straight answer on price.

Call Mark: 07984 433834

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