- Area
- County Antrim
- Postcode district
- BT1
- Nation
- Northern Ireland
- Guide price
- Priced after survey
- Survey
- Free for installation enquiries
Heat loss survey for Belfast homes
The question for a Belfast home is rarely whether a heat pump can work, but what needs to change to make it work well: radiator sizes, pipework, controls and where the unit goes.
Houses in Belfast built in different eras can need very different heat pump sizes, which is why each is calculated room by room. Design outdoor temperatures for Belfast and the wider County Antrim come from local cold-weather data, not a national average.
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.
- Anyone getting a heat pump quote, as the first step
- Self-builders and architects who need emitter and system sizes early
- Homeowners planning insulation or building work who want to know the effect on heat demand
What's included
- Written results in your quote, or a stand-alone report if you order one
- Electrical supply and network operator notes
- Recommended heat pump size and design flow temperature
- Room-by-room heat loss calculation using the MCS method
- Hot water cylinder sizing for your household
A surveyor visits your Belfast home to measure each room, window and wall before any heat pump is sized.
Grants and rules for heat pumps in Northern Ireland
The Boiler Upgrade Scheme covers England and Wales only, and there is currently no dedicated heat pump grant for homeowners in Northern Ireland. Our quote for a Belfast home is therefore shown without a grant deduction; if support becomes available we will tell you how it applies.
There is no VAT on installing a heat pump in Northern Ireland until 31 March 2027, the same as in Great Britain. Planning and building control here follow Northern Ireland's own rules, so the survey checks the unit position against them.
Guide prices for heat loss surveys in Belfast
Here are typical prices for heat loss surveys in County Antrim, 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.
How long is the heating season in Belfast?
Belfast sees roughly 7 hours 15 minutes of daylight in December and 17 hours 17 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.
From survey to switch-on in Belfast
- Start online with a guide price or call us.
- A home survey in Belfast 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 Belfast: questions
Do you cover Newtownabbey as well as Belfast?
Yes. We arrange surveys and installation in Newtownabbey, which is about 4 miles north of Belfast, and across County Antrim.
What size heat pump does a Belfast 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 Belfast home.
Do I need new radiators for a heat pump in Belfast?
Often some, not all. Heat pumps run best at lower water temperatures, so rooms with small radiators may need larger ones. The survey of your Belfast home gives a room-by-room list.
Is the heat loss survey free?
Yes, for installation enquiries the home survey and heat loss calculation are free, and the results form the basis of your written quote. If you only want the calculation and report, for example for building plans or comparing quotes, a stand-alone heat loss survey has a guide price of £150–£400, including VAT. We confirm which applies when you book.
Why can't you size the heat pump from my boiler?
Boilers are often much larger than a home's real heat loss, because they are sized for fast hot water and quick warm-ups. Matching a heat pump to the boiler's output usually means an oversized unit that costs more and switches on and off too often. A room-by-room calculation finds the actual heat demand, which is what the heat pump needs to meet.