- Area
- County Londonderry
- Postcode district
- BT55
- Nation
- Northern Ireland
- Guide price
- Priced after survey
- Survey
- Free for installation enquiries
What to know about heat loss surveys in Portstewart
Most homes can run on a heat pump if the system is designed properly, and Portstewart is no different. The key is matching the heat pump and radiators to the home's heat loss.
Homeowners in Portstewart thinking about insulation work can use the survey to see how it would change their heat pump size. A surveyor visits your Portstewart home to measure each room, window and wall before any heat pump is sized.
Every heat pump we quote starts with a room-by-room heat loss survey, free with installation enquiries and also available as a stand-alone report.
- Homeowners planning insulation or building work who want to know the effect on heat demand
- Self-builders and architects who need emitter and system sizes early
- Homes with an existing heat pump that seems undersized or expensive to run
What's included
- Electrical supply and network operator notes
- Written results in your quote, or a stand-alone report if you order one
- Recommended heat pump size and design flow temperature
- Hot water cylinder sizing for your household
- Radiator schedule with any upgrades needed for each room
For Portstewart homes with extensions or loft conversions, each part of the house is assessed on its own construction.
Grants and rules for heat pumps in Northern Ireland
Northern Ireland does not have a dedicated heat pump grant for homeowners at present, and the Boiler Upgrade Scheme does not apply here. Heat pumps have sometimes been funded through the Northern Ireland Sustainable Energy Programme, so it is worth checking what is open when you enquire about a home in Portstewart.
Installing heat pumps has been zero-rated for VAT in Northern Ireland since 1 May 2023, in line with the rest of the UK, until 31 March 2027. Northern Ireland has its own permitted development rules and building regulations, and we confirm what applies to your Portstewart property at survey.
Guide prices for heat loss surveys in Portstewart
Here are typical prices for heat loss surveys in County Londonderry, installed and including VAT. Use the guide price tool for a figure based on your home, then a survey confirms it in writing.
| Survey | Guide price |
|---|---|
| Home survey and heat loss calculation with an installation quote | Free |
| Stand-alone heat loss survey and report | £150–£390 |
Inc VAT. A stand-alone report is for homeowners who want the design without an installation quote.
Designing for Portstewart's winters
Portstewart sees roughly 7 hours 08 minutes of daylight in December and 17 hours 25 minutes in June. With a longer heating season than the south, the gains from low flow temperatures and good controls add up over the year.
How installation works in Portstewart
- Start online with a guide price or call us.
- A home survey in Portstewart gives us the room-by-room heat loss.
- Your written quote sets out the design, the price and the grant position where you live.
- Installation is booked for dates that suit you; most homes take 2–4 days on site.
- After commissioning you get a handover of the controls and settings, plus the certificates.
Heat loss surveys in Portstewart: questions
How long does installation take in Portstewart?
Most installations take 2–4 days on site. Jobs with several radiator changes or new pipework take longer, and your quote for a Portstewart home states the expected time.
How long does a heat pump survey take in Portstewart?
A home survey in Portstewart usually takes one to two hours. The surveyor measures every heated room, checks windows, walls and radiators, and looks at where the outdoor unit and cylinder can go.
What size heat pump does a Portstewart home need?
It depends on the heat loss, not the postcode. As a rough guide, a 3 bedroom semi often needs 6–9 kW, but the room-by-room survey sets the actual size for your Portstewart home.
What is a design flow temperature?
The design flow temperature is the temperature of the water sent to your radiators or underfloor heating on the coldest design day. Heat pumps are more efficient at lower flow temperatures, typically around 35–50°C. Choosing it is a balance: a lower figure improves efficiency but can mean larger radiators in some rooms, so the design shows both.
How long does a heat loss survey take?
A typical survey takes 1–3 hours on site, depending on the size and complexity of the home. Larger or older houses with mixed construction, extensions or many rooms take longer. The calculations and design are completed afterwards, and the results are included in your quote or stand-alone report.