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HEAT LOSS & PLUMBING SURVEY
]
Starting from £450 + VAT (£540 inc. VAT)
Starting from £450 + VAT (£540 inc. VAT)
Starting from £450 + VAT (£540 inc. VAT)
Independent Heat Loss & Plumbing Survey
from a Heat Pump Engineer
Independent Heat Loss & Plumbing Survey
from a Heat Pump Engineer
Independent Heat Loss & Plumbing Survey from a Heat Pump Engineer
Not sure what needs changing in your home before a heat pump is installed? Our Heat Loss & Plumbing Survey gives you a practical, room-by-room assessment carried out by one of our experienced heat pump engineers.
We calculate the heat loss for every room, assess your existing radiators, and identify exactly which ones need replacing or upgrading. We also look at the existing pipework, proposed heat pump and cylinder locations, and the practical plumbing requirements needed for the installation.
You'll receive a clear, independent guide showing radiator swaps and sizes, heat pump positioning, key plumbing alterations, and your room-by-room heat loss figures, giving you a useful plan to work from whether you're getting quotes, checking an installer's proposal, or preparing for an installation.
If you need more detailed advice on the complete system design, our Pre-Installation Design Review goes a step further and looks at how the proposed heat pump system should work as a whole.
✔ Room-by-Room Heat Loss
✔ Room-by-Room Heat Loss
✔ Room-by-Room Heat Loss
✔ Room-by-Room Heat Loss
✔ Room-by-Room Heat Loss
✔ Plumbing & Emitter Assessment
✔ Plumbing & Emitter Assessment
✔ Plumbing & Emitter Assessment
✔ Plumbing & Emitter Assessment
✔ Independent Technical Advice
✔ Independent Technical Advice
✔ Independent Technical Advice
✔ Independent Technical Advice
✔ Independent Technical Advice
✔ Plumbing Sketches Where Required
✔ Plumbing Sketches Where Required
✔ Plumbing Sketches Where Required
✔ Plumbing Sketches Where Required
✔ Plumbing Sketches Where Required
✔ Main Plant & Materials List
✔ Main Plant & Materials List
✔ Main Plant & Materials List
✔ Main Plant & Materials List
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Who This Is For
]
Is This the Right Service for You?
A standard heat loss calculation is relatively easy to find. Someone who can independently assess the heat loss, radiators, pipework, hot water requirements, flow rates, and practical plumbing requirements is much harder to find, and that's the gap this service fills.
A standard heat loss calculation will tell you how much heat each room loses. We go considerably further. We're experienced plumbing, heating and heat pump engineers, so while we're carrying out the full room-by-room heat loss calculation, we're also looking at the property from the point of view of the engineers who will eventually have to install the system.
A standard heat loss calculation will tell you how much heat each room loses. We go considerably further. We're experienced plumbing, heating and heat pump engineers, so while we're carrying out the full room-by-room heat loss calculation, we're also looking at the property from the point of view of the engineers who will eventually have to install the system.
A standard heat loss calculation is relatively easy to find. Someone who can independently assess the heat loss, radiators, pipework, hot water requirements, flow rates, and practical plumbing requirements is much harder to find, and that's the gap this service fills.
This survey is right for you if you're gathering quotes and want an independent baseline to check installer proposals against, if you've already received a quote and want to know whether the radiators, pipework, and sizing behind it are correct, or if you simply want a clear, practical plan before committing to any installer. If you're not sure why the heat loss figure matters so much in the first place, our Heat Loss Calculation Explained article covers exactly how that number is worked out and why it drives everything else in your system design.
A standard heat loss calculation will tell you how much heat each room loses. We go considerably further. We're experienced plumbing, heating and heat pump engineers, so while we're carrying out the full room-by-room heat loss calculation, we're also looking at the property from the point of view of the engineers who will eventually have to install the system.
A standard heat loss calculation will tell you how much heat each room loses. We go considerably further. We're experienced plumbing, heating and heat pump engineers, so while we're carrying out the full room-by-room heat loss calculation, we're also looking at the property from the point of view of the engineers who will eventually have to install the system.
This survey is right for you if you're gathering quotes and want an independent baseline to check installer proposals against, if you've already received a quote and want to know whether the radiators, pipework, and sizing behind it are correct, or if you simply want a clear, practical plan before committing to any installer. If you're not sure why the heat loss figure matters so much in the first place, our Heat Loss Calculation Explained article covers exactly how that number is worked out and why it drives everything else in your system design.
Why the Plumbing Side Matters as Much as the Heat Loss Figure
Plenty of people can carry out a heat loss calculation. Far fewer properly understand the plumbing and practical installation side of a heat pump system, and that gap is often where problems actually start. A heat pump can be sized perfectly on paper and still underperform if the existing pipework can't deliver the flow rate it needs, if the radiators weren't upgraded to suit lower flow temperatures, or if the hot water cylinder arrangement isn't compatible with how a heat pump actually heats water. A heat loss figure alone doesn't catch any of that. We survey the property from the point of view of both a heat pump engineer and a plumber, so the plan you receive reflects what will genuinely need to happen, not just what the numbers say in isolation. Our article on what happens if a heat pump is oversized covers one of the most common consequences of getting this wrong at the design stage.
A standard heat loss calculation will tell you how much heat each room loses. We go considerably further. We're experienced plumbing, heating and heat pump engineers, so while we're carrying out the full room-by-room heat loss calculation, we're also looking at the property from the point of view of the engineers who will eventually have to install the system.
A standard heat loss calculation will tell you how much heat each room loses. We go considerably further. We're experienced plumbing, heating and heat pump engineers, so while we're carrying out the full room-by-room heat loss calculation, we're also looking at the property from the point of view of the engineers who will eventually have to install the system.
Plenty of people can carry out a heat loss calculation. Far fewer properly understand the plumbing and practical installation side of a heat pump system, and that gap is often where problems actually start. A heat pump can be sized perfectly on paper and still underperform if the existing pipework can't deliver the flow rate it needs, if the radiators weren't upgraded to suit lower flow temperatures, or if the hot water cylinder arrangement isn't compatible with how a heat pump actually heats water. A heat loss figure alone doesn't catch any of that. We survey the property from the point of view of both a heat pump engineer and a plumber, so the plan you receive reflects what will genuinely need to happen, not just what the numbers say in isolation. Our article on what happens if a heat pump is oversized covers one of the most common consequences of getting this wrong at the design stage.
If your heat pump is already installed and something isn't performing as it should, that's a different starting point our Fix My Heat Pump service is built for diagnosing an existing fault rather than pre-installation planning.
A standard heat loss calculation will tell you how much heat each room loses. We go considerably further. We're experienced plumbing, heating and heat pump engineers, so while we're carrying out the full room-by-room heat loss calculation, we're also looking at the property from the point of view of the engineers who will eventually have to install the system.
A standard heat loss calculation will tell you how much heat each room loses. We go considerably further. We're experienced plumbing, heating and heat pump engineers, so while we're carrying out the full room-by-room heat loss calculation, we're also looking at the property from the point of view of the engineers who will eventually have to install the system.
If your heat pump is already installed and something isn't performing as it should, that's a different starting point our Fix My Heat Pump service is built for diagnosing an existing fault rather than pre-installation planning.
What's Actually Included
Rather than just giving you a heat loss figure, we survey the property from the point of view of an experienced heat pump engineer and plumber, showing you what will actually need to be done to install a heat pump properly. Your survey includes:
A standard heat loss calculation will tell you how much heat each room loses. We go considerably further. We're experienced plumbing, heating and heat pump engineers, so while we're carrying out the full room-by-room heat loss calculation, we're also looking at the property from the point of view of the engineers who will eventually have to install the system.
A standard heat loss calculation will tell you how much heat each room loses. We go considerably further. We're experienced plumbing, heating and heat pump engineers, so while we're carrying out the full room-by-room heat loss calculation, we're also looking at the property from the point of view of the engineers who will eventually have to install the system.
Rather than just giving you a heat loss figure, we survey the property from the point of view of an experienced heat pump engineer and plumber, showing you what will actually need to be done to install a heat pump properly. Your survey includes:
Full room-by-room heat loss survey. Every room is calculated individually, rather than estimated from floor area, so the figures reflect your specific property, not a rule of thumb. If you'd like to know more about how this actually gets worked out, see our guide on what size heat pump you need.
A standard heat loss calculation will tell you how much heat each room loses. We go considerably further. We're experienced plumbing, heating and heat pump engineers, so while we're carrying out the full room-by-room heat loss calculation, we're also looking at the property from the point of view of the engineers who will eventually have to install the system.
A standard heat loss calculation will tell you how much heat each room loses. We go considerably further. We're experienced plumbing, heating and heat pump engineers, so while we're carrying out the full room-by-room heat loss calculation, we're also looking at the property from the point of view of the engineers who will eventually have to install the system.
Full room-by-room heat loss survey. Every room is calculated individually, rather than estimated from floor area, so the figures reflect your specific property, not a rule of thumb. If you'd like to know more about how this actually gets worked out, see our guide on what size heat pump you need.
Existing radiator assessment and recommended changes/sizes for heat pump temperatures. Heat pumps generally run at lower flow temperatures than a gas boiler, which means radiators sized for a boiler are often too small to deliver enough heat efficiently once a heat pump is installed. We identify exactly which radiators need upgrading, and to what size, rather than leaving that to be discovered after installation.
A standard heat loss calculation will tell you how much heat each room loses. We go considerably further. We're experienced plumbing, heating and heat pump engineers, so while we're carrying out the full room-by-room heat loss calculation, we're also looking at the property from the point of view of the engineers who will eventually have to install the system.
A standard heat loss calculation will tell you how much heat each room loses. We go considerably further. We're experienced plumbing, heating and heat pump engineers, so while we're carrying out the full room-by-room heat loss calculation, we're also looking at the property from the point of view of the engineers who will eventually have to install the system.
Existing radiator assessment and recommended changes/sizes for heat pump temperatures. Heat pumps generally run at lower flow temperatures than a gas boiler, which means radiators sized for a boiler are often too small to deliver enough heat efficiently once a heat pump is installed. We identify exactly which radiators need upgrading, and to what size, rather than leaving that to be discovered after installation.
Existing pipework assessment, including pipe sizes, routes, and suitability for a heat pump. Pipework that worked fine for a boiler doesn't automatically work for a heat pump, which typically needs to circulate a larger volume of water at a lower temperature to deliver the same heat output. We check whether your existing pipework can actually support this.
A standard heat loss calculation will tell you how much heat each room loses. We go considerably further. We're experienced plumbing, heating and heat pump engineers, so while we're carrying out the full room-by-room heat loss calculation, we're also looking at the property from the point of view of the engineers who will eventually have to install the system.
A standard heat loss calculation will tell you how much heat each room loses. We go considerably further. We're experienced plumbing, heating and heat pump engineers, so while we're carrying out the full room-by-room heat loss calculation, we're also looking at the property from the point of view of the engineers who will eventually have to install the system.
Existing pipework assessment, including pipe sizes, routes, and suitability for a heat pump. Pipework that worked fine for a boiler doesn't automatically work for a heat pump, which typically needs to circulate a larger volume of water at a lower temperature to deliver the same heat output. We check whether your existing pipework can actually support this.
Flow-rate testing and assessment. This establishes whether your existing system can physically deliver the flow rate a heat pump needs to perform properly. It's one of the most commonly overlooked checks in a standard heat loss calculation, and one of the most consequential if it's skipped.
A standard heat loss calculation will tell you how much heat each room loses. We go considerably further. We're experienced plumbing, heating and heat pump engineers, so while we're carrying out the full room-by-room heat loss calculation, we're also looking at the property from the point of view of the engineers who will eventually have to install the system.
A standard heat loss calculation will tell you how much heat each room loses. We go considerably further. We're experienced plumbing, heating and heat pump engineers, so while we're carrying out the full room-by-room heat loss calculation, we're also looking at the property from the point of view of the engineers who will eventually have to install the system.
Flow-rate testing and assessment. This establishes whether your existing system can physically deliver the flow rate a heat pump needs to perform properly. It's one of the most commonly overlooked checks in a standard heat loss calculation, and one of the most consequential if it's skipped.
Domestic hot water assessment, including incoming mains flow and pressure, existing cylinder arrangement, and whether your property is best suited to a vented or unvented hot water system. Heat pumps heat water differently to boilers, and getting the hot water side wrong is a common source of complaints, weak showers, water that doesn't stay hot, that trace back to a cylinder or mains setup that was never properly checked against the new system.
A standard heat loss calculation will tell you how much heat each room loses. We go considerably further. We're experienced plumbing, heating and heat pump engineers, so while we're carrying out the full room-by-room heat loss calculation, we're also looking at the property from the point of view of the engineers who will eventually have to install the system.
A standard heat loss calculation will tell you how much heat each room loses. We go considerably further. We're experienced plumbing, heating and heat pump engineers, so while we're carrying out the full room-by-room heat loss calculation, we're also looking at the property from the point of view of the engineers who will eventually have to install the system.
Domestic hot water assessment, including incoming mains flow and pressure, existing cylinder arrangement, and whether your property is best suited to a vented or unvented hot water system. Heat pumps heat water differently to boilers, and getting the hot water side wrong is a common source of complaints, weak showers, water that doesn't stay hot, that trace back to a cylinder or mains setup that was never properly checked against the new system.
Recommended heat pump position and recommended hot water cylinder and plant location. Positioning affects noise, efficiency, pipe run lengths, and how straightforward the eventual installation actually is. We factor all of this in rather than treating position as an afterthought.
A standard heat loss calculation will tell you how much heat each room loses. We go considerably further. We're experienced plumbing, heating and heat pump engineers, so while we're carrying out the full room-by-room heat loss calculation, we're also looking at the property from the point of view of the engineers who will eventually have to install the system.
A standard heat loss calculation will tell you how much heat each room loses. We go considerably further. We're experienced plumbing, heating and heat pump engineers, so while we're carrying out the full room-by-room heat loss calculation, we're also looking at the property from the point of view of the engineers who will eventually have to install the system.
Recommended heat pump position and recommended hot water cylinder and plant location. Positioning affects noise, efficiency, pipe run lengths, and how straightforward the eventual installation actually is. We factor all of this in rather than treating position as an afterthought.
Practical pipe routes between the heat pump and internal plant. A route that looks simple on paper can be genuinely impractical once walls, floors, and existing services are accounted for. We plan this properly rather than leaving your installer to work it out on the day.
A standard heat loss calculation will tell you how much heat each room loses. We go considerably further. We're experienced plumbing, heating and heat pump engineers, so while we're carrying out the full room-by-room heat loss calculation, we're also looking at the property from the point of view of the engineers who will eventually have to install the system.
A standard heat loss calculation will tell you how much heat each room loses. We go considerably further. We're experienced plumbing, heating and heat pump engineers, so while we're carrying out the full room-by-room heat loss calculation, we're also looking at the property from the point of view of the engineers who will eventually have to install the system.
Practical pipe routes between the heat pump and internal plant. A route that looks simple on paper can be genuinely impractical once walls, floors, and existing services are accounted for. We plan this properly rather than leaving your installer to work it out on the day.
Assessment of the existing heating system and identification of potential installation problems before work starts. Catching a problem at survey stage is far easier and cheaper to resolve than discovering it once an installer is already partway through the job.
A standard heat loss calculation will tell you how much heat each room loses. We go considerably further. We're experienced plumbing, heating and heat pump engineers, so while we're carrying out the full room-by-room heat loss calculation, we're also looking at the property from the point of view of the engineers who will eventually have to install the system.
A standard heat loss calculation will tell you how much heat each room loses. We go considerably further. We're experienced plumbing, heating and heat pump engineers, so while we're carrying out the full room-by-room heat loss calculation, we're also looking at the property from the point of view of the engineers who will eventually have to install the system.
Assessment of the existing heating system and identification of potential installation problems before work starts. Catching a problem at survey stage is far easier and cheaper to resolve than discovering it once an installer is already partway through the job.
What You'll Receive
What You'll Receive
A practical installation plan that can be given to the customer's chosen installer, alongside your room-by-room heat loss figures, recommended radiator swaps and sizes, heat pump positioning, and the key plumbing alterations needed. Whether you're getting quotes, checking an installer's proposal, or preparing for an installation, this gives you a genuinely usable plan to work from, not just a number to hand over and hope your installer interprets correctly. We've seen exactly this kind of upfront clarity make a real difference in practice; our Heat Loss Survey Case Study covers a real example of getting the flow temperature and design right before installation began, rather than correcting it afterward.
A standard heat loss calculation will tell you how much heat each room loses. We go considerably further. We're experienced plumbing, heating and heat pump engineers, so while we're carrying out the full room-by-room heat loss calculation, we're also looking at the property from the point of view of the engineers who will eventually have to install the system.
A standard heat loss calculation will tell you how much heat each room loses. We go considerably further. We're experienced plumbing, heating and heat pump engineers, so while we're carrying out the full room-by-room heat loss calculation, we're also looking at the property from the point of view of the engineers who will eventually have to install the system.
A practical installation plan that can be given to the customer's chosen installer, alongside your room-by-room heat loss figures, recommended radiator swaps and sizes, heat pump positioning, and the key plumbing alterations needed. Whether you're getting quotes, checking an installer's proposal, or preparing for an installation, this gives you a genuinely usable plan to work from, not just a number to hand over and hope your installer interprets correctly. We've seen exactly this kind of upfront clarity make a real difference in practice; our Heat Loss Survey Case Study covers a real example of getting the flow temperature and design right before installation began, rather than correcting it afterward.
For Installers & Heating Companies
For Installers & Heating Companies
This survey isn't only for homeowners. If you're an installer or heating company and want an independent, second set of eyes on a property's heat loss, radiator sizing, or pipework suitability before committing to a design or submitting a quote, this report gives you a clear, usable reference you can work from or hand to your customer directly.
A standard heat loss calculation will tell you how much heat each room loses. We go considerably further. We're experienced plumbing, heating and heat pump engineers, so while we're carrying out the full room-by-room heat loss calculation, we're also looking at the property from the point of view of the engineers who will eventually have to install the system.
A standard heat loss calculation will tell you how much heat each room loses. We go considerably further. We're experienced plumbing, heating and heat pump engineers, so while we're carrying out the full room-by-room heat loss calculation, we're also looking at the property from the point of view of the engineers who will eventually have to install the system.
This survey isn't only for homeowners. If you're an installer or heating company and want an independent, second set of eyes on a property's heat loss, radiator sizing, or pipework suitability before committing to a design or submitting a quote, this report gives you a clear, usable reference you can work from or hand to your customer directly.
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Faq
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Common Questions Heat Loss Survey & Calculation
How much does a Heat Loss & Plumbing Survey cost?
Our Heat Loss & Plumbing Surveys start from £450 + VAT (£540 including VAT). Larger or more complex properties may need an individual quote.
Is this the same as a thermal imaging survey?
I already have a quote with a heat loss figure. Do I still need this?
Do you install heat pumps or work with installers on commission?
Do you offer this to installers, not just homeowners?
Contact Us
Not Sure Which Service You Need?
Not Sure Which Service You Need?
Not Sure Which Service You Need?
Not Sure Which Service You Need?
Not Sure Which Service You Need?
Whether you need help with an existing heat pump, a pre-installation review, cooling advice, servicing or a room-by-room heat loss survey, send us a few details and we'll point you in the right direction.
Whether you need help with an existing heat pump, a pre-installation review, cooling advice, servicing or a room-by-room heat loss survey, send us a few details and we'll point you in the right direction.
Whether you need help with an existing heat pump, a pre-installation review, cooling advice, servicing or a room-by-room heat loss survey, send us a few details and we'll point you in the right direction.
