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Newtownards · BT23

Plumbers in
Newtownards.

Newtownards sits at the head of Strangford Lough. The town proper is on Phoenix gas with 1970s-2000s suburban stock; the rural edge out to Killinchy, Ballygowan and the Ards Peninsula stays oil-heated. The mix means almost every quote includes the 'gas, or stick with oil?' conversation.

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Gas Safe registered | OFTEC registered | 10+ years on the tools
Boiler work in Newtownards, Belfast

About the area

Town on gas, peninsula on oil. The conversion question runs through nearly every rural-edge quote.

Newtownards is Phoenix Natural Gas territory for the residential core. The wider BT23 postcode stretches to Killinchy, Ballygowan, Comber (covered separately) and the upper Ards Peninsula where oil still dominates. Phoenix extended the Ards network meaningfully through 2015-2020, so streets that were off-grid a decade ago are often now connectable. Checking current coverage is the first step on any rural-edge oil conversation.

Newtownards (often just 'Ards') is a market town of about 30,000, 10 miles east of Belfast at the head of Strangford Lough. The centre around Conway Square carries Georgian and Victorian grain, with residential expansion west through Movilla and Conlig, south toward Ballygowan and Comber, and east along the Donaghadee Road. The town itself is consistently on Phoenix; the peninsula fringe (Greyabbey, Kircubbin, Portaferry) stays oil-dominant and sits at the edge of our usual coverage. Some peninsula properties use well-water supply, which affects heat-exchanger and filtration specification.

Gas network
Phoenix Natural Gas
Drive time
25 minutes from Belfast city centre
Postcodes covered
BT23
Main focus
Gas Boiler Installation · Oil Boiler Servicing · Boiler Servicing

How we work here

What Newtownards homes need.

Every area has its own housing stock and heating mix. Here's how that shapes the work we do in Newtownards.

Housing stock

Georgian and Victorian stock around Conway Square and the town centre; 1960s-70s Housing Executive stock through Movilla and Scrabo; 1970s-90s private estates across Conlig, Movilla West and Ballygowan Road; 1990s-2010s executive developments along the Donaghadee and Comber Roads; rural bungalows and older farmhouses through Killinchy, Ballygowan and the wider Ards countryside.

Heating pattern

Phoenix Natural Gas across the town residential core (roughly 85% of BT23 urban stock). Oil-dominant across Killinchy, Ballygowan, Greyabbey and the upper peninsula. Mixed along streets where Phoenix extended mains in the 2015-2020 rollout, some properties converted, some still on oil.

Common jobs in Newtownards

  • Gas combi replacements across the Movilla, Conlig and town-centre suburban stock.
  • Annual servicing across the BT23 residential core, standard intervals inland and 12-monthly on lough-adjacent properties.
  • OFTEC oil servicing on rural bungalows across Killinchy, Ballygowan and the Ards countryside.
  • Oil-to-gas conversion on streets where Phoenix recently extended mains coverage.
  • Well-water filtration retrofit alongside boiler changes on peninsula-edge properties.
  • Power flushing on 1970s-80s estate systems showing magnetite sludge.
  • Landlord CP12s across the rental market near the town centre and Ards Shopping Centre.

Local considerations

Things to know in Newtownards.

Phoenix coverage in BT23 is a moving target. Streets extended in the 2015-2020 programme, some streets still pending. Before committing to any oil tank or boiler replacement, check current Phoenix coverage at the exact property boundary; the answer can surprise you.

Well-water supplies across the peninsula edge carry variable mineral content. Limescale and iron affect heat-exchanger longevity and immersion element life. Specifying a limescale filter alongside the magnetic filter adds maybe £80 to an install but extends boiler life meaningfully.

Upper peninsula and lough-adjacent properties face harsher exposure than inland Ards. Flue corrosion inspections should be annual and full.

Housing stock in depth

Property types and what they need.

Newtownards is not one kind of house. Each era has a different pipework shape, different failure modes, and a different correct answer on replacement. Here's how that plays out on the ground.

01 · c. 1790-1910

Town-centre Georgian / Victorian stock

BT23

Period townhouses and terraces around Conway Square, Regent Street, Church Street and Frances Street. Solid brick or stone construction, sash windows, original chimney stacks. Some former commercial premises with residential use.

Typical setup

Combi in rear kitchen or basement utility where modernised. Pipework mixed eras. Flue routing through side or rear elevations to preserve Georgian frontages.

Common issues

  • Lead supply pipe still present in some properties.
  • Flue positioning constrained by conservation-area rules on front elevations.
  • Narrow building footprint limiting boiler location options.
  • Chimney stacks requiring capping after back-boiler removal.

Best practice on replacement

Rear-elevation flue routing. Replace internal stopcock. Check Listed Building Consent requirements near Conway Square where buildings are listed. Low-temperature flush on period rads if retained.

02 · c. 1962-1978

1960s-70s Housing Executive / Movilla expansion

BT23

Standardised three-bed semis and terraces across Movilla, Scrabo and older Conlig. Cavity-wall brick, pitched roof, 75-90 sqm.

Typical setup

Original back boiler converted to gas combi during 1990s-2010s upgrade waves. 15mm / 22mm copper pipework. Single-panel rads one per room.

Common issues

  • Upgrade combi hitting 10-15 year end-of-life.
  • Magnetic filter absent on older installs.
  • Room thermostat in a cold hallway.
  • Condensate routed externally, freeze-risk in coastal winter.

Best practice on replacement

Like-for-like swap with magnetic filter. Relocate thermostat or upgrade to smart control. Internal condensate routing or insulation.

03 · c. 1975-1995

1970s-90s private estate

BT23

Private-sale semis and detached across Conlig, Movilla West, Ballygowan Road and the Donaghadee Road corridor. Three- and four-bed standardised layouts, 100-140 sqm.

Typical setup

Combi or system boiler from original build or early upgrade. Modern 15mm / 22mm copper pipework. Radiators correctly sized at build.

Common issues

  • Original boiler 20+ years with parts availability narrowing.
  • System pressurisation drift on sealed systems.
  • Magnetic filter absent on pre-2012 installs.
  • Garage-sited boiler frost-protection absent.

Best practice on replacement

Like-for-like swap with magnetic filter. Replace expansion vessel on system installs. Frost-stat on garage boilers. Fixed filling loop.

04 · c. 1950-2005

Rural Ards oil-heated bungalow or farmhouse

BT23

Detached bungalows and older farmhouses across Killinchy, Ballygowan, Greyabbey and the wider Ards countryside. External oil tank, internal or external boiler, some with well-water supply.

Typical setup

Grant Vortex, Warmflow Professional or Firebird Envirogreen oil boiler, internal or external siting. Open-vent or pressurised primary. Bunded or single-skin oil tank 1,000-2,500 litres. Well-water supply on a subset of properties.

Common issues

  • Single-skin oil tank pre-2003.
  • Well-water limescale build-up on heat exchangers and immersion elements.
  • Vegetation overgrowth on tank masking corrosion.
  • Burner nozzle drift over years of deferred servicing.
  • External pipework freeze on exposed rural properties.

Best practice on replacement

Bunded tank to current spec. Limescale filter on well-water properties. Match burner nozzle to current heat exchanger. Annual OFTEC service. Insulated external pipework. Consider Phoenix coverage check before committing to new oil.

Technical constraints

Pressure, flues and planning.

The bits of a boiler install that determine whether your quote is realistic or optimistic. Most of these are checked at survey, not after.

Mains pressure and flue routing

NI Water mains pressure in Newtownards sits around 2.5-3.5 bar at the boundary. Streets on the elevated ground towards Scrabo report lower pressure at peak demand than lough-level town-centre properties. Flow-rate testing essential before any combi specification. Flue routing follows Approved Document J / Gas Safe MI distances (300mm from openable windows, 600mm from boundary, 200mm above ground, 1200mm from opposing openings). Lough-adjacent flues need annual inspection for early pitting; peninsula-exposed properties need coastal-rated flue materials. Oil flue positioning follows OFTEC Technical Book 3 with different clearances and prevailing-wind considerations.

Planning constraints

Conway Square and parts of the Newtownards historic centre are within a conservation area. External flues and condensate pipes on front elevations near the square and along Regent Street / Frances Street may need planning consent. Greyabbey village (within BT23 reach) has a conservation designation that covers much of the historic core. Scrabo Country Park sightlines affect some nearby properties. Suburban streets in Movilla, Conlig and the Donaghadee Road estates have no conservation overlay.

Honest scope

What we refer out in Newtownards.

Gas Safe and OFTEC registered means gas, oil and plumbing. Other trades need other qualifications, and we'd rather say so than pretend.

  • EICR electrical safety inspections and electrical installation work (NICEIC / ECA electrician).
  • Specialist well-water treatment and filtration design (water-treatment specialist).
  • Oil tank decommissioning with contamination assessment (specialist environmental contractor).
  • Heat pump installation as alternative to oil on off-gas rural properties (MCS-accredited installer).
  • Commercial gas work in Newtownards industrial estate (commercial-registered Gas Safe engineer).

Neighbourhoods we cover

Working across Newtownards.

If your address sits in any of these, or between them, we'll be with you the same week.

  • Newtownards town centre
  • Comber
  • Killinchy
  • Movilla
  • Conlig
  • Ballygowan

Priority work in Newtownards

The services Newtownards calls us for most.

Gas Boiler Installation

New combi, system and regular gas boilers fitted to Gas Safe standards.

From £2,200 fitted

Oil Boiler Servicing

OFTEC-registered annual service for oil-fired boilers across Greater Belfast.

From £110

Gas Boiler Servicing

Annual service and gas safety certificate, same-week appointments.

From £95 inc certificate

Also available in Newtownards

Power Flushing

from £500

Oil to Gas Conversion

Quote on survey

Emergency Plumbing

Same-day response

Recent work

Jobs we've done near Newtownards.

Common questions

Newtownards FAQ.

Does Phoenix reach our street now?

Maybe. Phoenix extended the Newtownards network substantially between 2015 and 2020 and continues to add streets. The fastest answer is to send us the full postcode plus house number and we'll check current coverage before quoting. If gas is available, conversion typically costs £3,500-£5,500 including oil tank decommissioning.

We're on well water. Does that change the install?

Yes. Well-water mineral content (limescale, dissolved iron) affects heat-exchanger life and immersion elements. We specify a limescale filter alongside the standard magnetic filter on any boiler install or cylinder replacement where well water is the supply. Flush chemistry is adjusted too; not a cost surprise, just a spec detail.

We're considering a new oil boiler. Is it worth converting to gas instead?

Depends on three things: whether Phoenix has reached the street (we check), the condition of the existing oil tank (we inspect), and household oil burn rate (we measure). If Phoenix is available and the tank is near end-of-life, the conversion maths usually stacks up because you're avoiding the tank-replacement cost anyway. If the tank is sound and Phoenix hasn't reached you, a modern OFTEC-serviced oil boiler is the honest answer.

How far into the Ards Peninsula do you travel?

Reliably: Killinchy, Ballygowan, Greyabbey, Donaghadee, Millisle. For Portaferry, Cloughey and Portavogie we'll cover larger jobs (installs, conversions) but prefer to route smaller service calls via a local engineer where possible. Emergency response times extend meaningfully past Greyabbey.

What's the typical Newtownards combi install cost?

For a like-for-like combi replacement on a 1970s Movilla or Conlig semi: £1,950-£2,450 fitted with magnetic filter and system flush. Oil-to-gas conversion (if Phoenix has reached the street): £3,500-£5,500 including boiler, tank decommission and Phoenix connection liaison.

Also covering

Nearby areas.

Belfast Lisburn Newtownabbey Bangor

See all areas

Get in touch

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