Kelly Heating NI carries out oil and gas boiler installations across Holywood and the surrounding North Down shoreline. Holywood's mix of Victorian terraces, Edwardian villas and newer detached properties means heating systems vary significantly from home to home — Kieran takes the time to assess your specific property and recommend the right solution, not the quickest or most profitable one.
Boiler Installation for Holywood Homes
Holywood has a good proportion of homes connected to the mains gas network, though a number of properties — particularly larger detached homes and those on the outskirts toward Cultra and Craigavad — rely on oil heating. Kieran is fully qualified and registered for both, with Gas Safe registration 557696 for gas work and OFTEC certification for oil.
Many older Holywood properties have system boilers and hot water cylinders rather than modern combi boilers. If your home has a cylinder setup, we can advise on whether a combi swap makes sense for your property or whether replacing like-for-like is the better option. We'll give you the honest answer, not the one that suits us commercially.
Is Your Holywood Boiler Due for Replacement?
- Boiler is over 10–15 years old and increasingly unreliable
- Repair bills are mounting and approaching replacement cost
- Energy bills are rising despite similar or lower usage
- Hot water is inconsistent or heating is uneven across rooms
- Pilot light goes out repeatedly or the boiler locks out with errors
- Visible corrosion, leaks or black staining around the boiler
What's Included in Every Installation
- Full site assessment and honest system recommendation
- Supply and installation of new A-rated boiler
- Horizontal flue (vertical available at additional cost)
- Magnetic boiler protection filter
- System flush, inhibitor and scale protection
- Wireless thermostat
- Carbon monoxide alarm
- Gas Safe or OFTEC completion certificate
- Full controls walkthrough before we leave
We offer four boiler packages starting from £2,250 + VAT. See our boiler packages and prices.
Boiler Brands We Install in Holywood
We install all major brands including Worcester Bosch, Vaillant, Ideal, Vokera, Warmflow and Grant. We recommend based on your home and budget — not on brand incentives. For larger Holywood properties with higher hot water demand, a system boiler and cylinder combination is often more appropriate than a combi; we'll advise accordingly.
Frequently Asked Questions — Boiler Installation Holywood
Our packages start from £2,250 + VAT for a standard gas combi swap. Larger or more complex installations are quoted individually after a site visit. See our boiler packages page for full details.
Yes. Kieran is OFTEC registered and experienced with oil boiler installations across Holywood and North Down. Oil boiler pricing varies and is quoted at your site visit.
Yes — we can replace system boilers with cylinders like-for-like, or advise on converting to a combi where this makes sense for your property. Many larger Holywood homes are better suited to a system boiler setup.
Yes — we cover Holywood for boiler breakdown and repair as well as installation. See our emergency boiler repair page.
Serving Holywood and the North Down Corridor
We cover Holywood, Cultra, Craigavad, Helen's Bay and the wider North Down area. We also cover Belfast, Lisburn, Dunmurry and Carryduff.