New Boiler Installation Across County Sligo

If your boiler is constantly breaking down, costing a fortune in repairs, or simply not heating your home effectively anymore, the time has come to consider a replacement. A new boiler is a significant investment, but it is one that pays for itself through lower fuel bills, fewer breakdowns, and a warmer, more comfortable home. For homeowners across County Sligo, where reliable heating is essential for eight months of the year or more, choosing the right boiler and having it properly installed is one of the most important decisions you will make for your property.

We supply and install new oil and gas boilers from leading manufacturers, with a free home assessment, transparent pricing, and full commissioning and warranty registration. All of our installations are carried out by RGI registered and OFTEC qualified engineers to the highest safety standards.

What We Offer

Our new boiler installation service is comprehensive - we handle every aspect from the initial assessment to the final commissioning:

• Free home assessment - We visit your property, assess the heating requirements, and recommend the right boiler type and size. There is no charge and no obligation.
• Oil boiler installation - The majority of homes across rural County Sligo rely on oil-fired heating. We install all leading oil boiler brands including Grant, Firebird, and Worcester Bosch. We handle the connections to your existing oil supply, flue installation, and system integration.
• Gas boiler installation - For properties connected to the Gas Networks Ireland grid in Sligo Town and surrounding areas, we install gas boilers from Vaillant, Worcester Bosch, Baxi, Ideal, and other leading manufacturers.
• System design - If your current heating system is poorly designed or undersized, we redesign the pipework, radiator sizing, and controls to work optimally with the new boiler.
• Power flush before installation - We strongly recommend a power flush before connecting a new boiler to an existing system. This removes sludge and debris that can damage the new boiler and void the manufacturer warranty.
• Full commissioning - Every boiler is commissioned to the manufacturer’s specifications, with all safety controls tested and gas/oil pressures set correctly.
• Warranty registration - We complete the manufacturer warranty registration on your behalf, ensuring you are fully covered from day one.

Choosing the Right Boiler for Your Sligo Home

Selecting the correct boiler is about more than just picking a brand. The right boiler for your home depends on several factors. If you are unsure whether it is time to replace your existing boiler, read our guide on 7 signs your boiler needs replacing, and if you need help choosing between fuel types, our article on oil boiler vs gas boiler - which is better covers the key considerations for Sligo properties:

Property size and insulation - A large, poorly insulated farmhouse near Ballymote needs a considerably higher output boiler than a modern, well-insulated semi-detached in Sligo Town. We calculate the heat loss of your property to determine the correct boiler output in kilowatts.

Number of bathrooms and hot water demand - A family of five with two bathrooms has very different hot water requirements to a couple in a small bungalow. This affects whether a combi boiler, a system boiler, or a regular boiler with a cylinder is the best choice.

Fuel availability - Natural gas is available in Sligo Town and parts of the gas network extension. Most rural properties throughout County Sligo are not connected to the gas grid and rely on oil. We advise on the most practical and economical fuel option for your location.

Budget and running costs - We carry boilers at a range of price points from reliable budget options to premium models with the highest efficiency ratings. A more expensive boiler often pays back its extra cost through lower fuel consumption over its lifetime.

System type - We install three main types of boiler:

• Combi boilers - Heat water on demand with no cylinder needed. Best for smaller homes with one bathroom.
• System boilers - Work with an unvented hot water cylinder for powerful mains-pressure hot water. Best for homes with multiple bathrooms.
• Regular (heat only) boilers - Work with a traditional vented cylinder and attic tank. The most common replacement type in older Sligo homes.

When to Call a Professional

Knowing when it is time to replace your boiler rather than repair it again can save you money in the long run. Consider a new boiler if:

• Your boiler is over 15 years old - Even if it is still running, older boilers are significantly less efficient than modern condensing models. You could be wasting 20 to 30 percent of your fuel.
• Repair costs are mounting - If you have spent hundreds of euro on repairs in the last year or two, that money would be better put towards a new, reliable boiler.
• Parts are becoming difficult to source - Older boiler models are eventually discontinued and replacement parts become scarce and expensive.
• The boiler is not heating your home properly - If you are always cold despite the boiler running, it may be undersized or have lost efficiency to the point where replacement is the only practical solution.
• Your fuel bills have increased significantly - A modern A-rated condensing boiler can be up to 30 percent more efficient than an old non-condensing model, delivering real savings on your oil or gas bills.

The Installation Process

A new boiler installation with us follows a clear, professional process from start to finish:

1. Assessment visit - We survey your home, discuss your needs, and take measurements. This is free and carries no obligation.
2. Written quotation - You receive a detailed quote itemising everything included in the price. No hidden extras.
3. Installation day - We arrive on the agreed date, protect your floors and work areas, remove the old boiler, and install the new one. For a like-for-like replacement, this is typically completed in a single day.
4. System flush - If needed, we carry out a power flush to ensure the existing radiators and pipework are clean before connecting to the new boiler.
5. Commissioning - The boiler is fired up, pressures are set, all safety controls are tested, and the system is run through several cycles to verify everything works correctly.
6. Handover - We walk you through the boiler controls, explain the thermostat and timer, register your warranty, and leave you with all documentation.

Get a Free Boiler Assessment

If you think it might be time for a new boiler, call us on 087 341 0745 to arrange a free, no-obligation home assessment. We will survey your property, discuss your options, and provide a transparent written quote. No pressure, no pushy sales - just honest advice from experienced heating engineers who know Sligo homes inside and out.