Developers & specifiers

Low-carbon heating, engineered for your development.

Thermal Earth supports heat-pump projects from feasibility and system design through drilling, installation, commissioning and aftercare.

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20+ years operating 4,000+ systems installed In-house drilling

Capability summaryThermal Earth

Project stagesFeasibility to handover

ApplicationsNew build, retrofit and communal systems

TechnologiesAir, ground and water source

Starting pointEarly advice or a defined specification

A practical route from project brief to an operating system.

20+ years

Heat-pump project experience

4,000+

Systems installed

In-house

Design, drilling and installation

MCS

Certified delivery

Joined-up delivery

One team for the heating strategy.

Bring us in early to review heat source, distribution, plant space, groundworks and delivery constraints together.

We can also support projects that already have an established design or specification.

See the delivery approach

01 Solutions

Choose the heat source around the scheme.

The right route depends on demand, site conditions, space, programme and the wider building-services strategy.

Air source heat pumps

A flexible option where suitable outdoor-unit locations and an appropriate distribution design can be provided.

Explore air source

Ground source heat pumps

Use energy from the ground through boreholes or horizontal collectors, subject to the site and ground strategy.

Explore ground source

Shared ground loops

A communal ground array can serve multiple dwellings while individual system arrangements remain project-specific.

Explore shared ground loops

Water source heat pumps

A potential route where a suitable water source, permissions and site conditions support the design.

Explore water source

02 Delivery

A clear route from brief to handover.

The scope at each stage is agreed around the project team, procurement route and information available.

Understand the brief

Review demand, site constraints, programme and the decisions already made.

Develop the design

Coordinate heat source, distribution, plant, controls and project information.

Coordinate delivery

Plan equipment, groundworks and installation around the agreed project programme.

Commission and support

Complete commissioning, handover information and the agreed support scope.

Cutaway illustration of ground-source collector options - pond mat, horizontal loops and boreholes - feeding a single plant room — One system, source to plant room - pond mat, boreholes and drilling, delivered by our own teams.

Borehole drilling rig working on a ground-source heat-pump project

Ground-source delivery

Plan the work below ground with the system above it.

Boreholes, headers, plant and building services need to be considered as one coordinated design.

We review access, sequencing and interfaces with the wider project team before the drilling scope is agreed.

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03 Project coordination

Designed around the requirements of the scheme.

Project-specific responsibilities are agreed with the appointed building-services team, energy assessor and other project consultants.

Heat demand and sizing

Use the agreed heat-loss and demand information as the basis for equipment selection.

Emitters and flow temperature

Coordinate radiators, underfloor heating and other emitters with the system design.

Plant and site interfaces

Review plant space, external units, groundworks, services and access requirements.

Commissioning and handover

Define the information, checks and handover activities needed for the agreed scope.

Explore system design

04 Compliance

Standards, responsibilities and design evidence.

We design and deliver our agreed heat-pump scope to the applicable standards below, coordinating the building requirements with your energy assessor, building-services team and site dutyholders.

Standard or duty	What it covers	Project evidence
MCS MIS 3005-D and MIS 3005-I	Heat-pump design and installation respectively, where MCS applies to the installation.	System design, installation checks and commissioning records for the agreed scope.
MCS 022	Ground heat-exchanger guidance and look-up tables where relevant and within their scope. Ground conditions and demand inform the array design.	Ground-array design showing collector layout and the design basis; site-specific modelling where needed.
BS EN 12831-1	Calculation of the design heat load, used to size heating equipment and room emitters.	Heat-loss report and the proposed radiator or underfloor heating design conditions.
Part L / SAP 10.2	Heating design information for the appointed assessor's Part L assessment. SAP 10.2 applies where required by the relevant rules and transition; the Future Homes Standard uses SAP 10.3.	Equipment, efficiency, controls and distribution information for the applicable assessment method.
F-Gas requirements	Appropriate qualifications and certification for work on equipment containing fluorinated refrigerants, where applicable.	Refrigerant-work and commissioning records appropriate to the selected equipment.
Part P / NICEIC and NAPIT	Electrical safety requirements for domestic work, with NICEIC/NAPIT registration supporting the applicable certification and notification route.	Electrical installation certification and notification where required.
CDM 2015	Designer and contractor duties for our scope, coordinated with the client, principal designer and principal contractor where appointed.	Design risk information and construction arrangements for the agreed work.

Plan for the right rules. In England, the Future Homes Standard takes effect on 24 March 2027 for non-higher-risk building work, with a 12-month transition; higher-risk buildings follow on 24 September 2027. In Wales, Approved Document L (2026) takes effect on 4 March 2027, with transitional provisions for qualifying work commenced before 4 March 2028. Read the housing-development guidance.

What your specifier receives

Our design and handover package is agreed with your project team and includes:

Heat-loss report with design assumptions.
System schematic showing plant, distribution and controls.
Ground-array design for ground source schemes.
Commissioning records for the installed system.
Operations and maintenance (O&M) and handover pack.

Applicable standard editions, assessment methods, certification and dutyholder responsibilities are confirmed for the project. Compliance of the whole building remains coordinated by the appointed project team.

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05 Accreditations