Building Compliance & Energy Services in Surrey & West Sussex

From surveys and assessments to certification and compliance

JPEC Building Services provides professional building energy, sustainability, surveying and compliance services for homeowners, landlords, developers, businesses and organisations across Surrey and West Sussex.

Based in Horley, we help clients understand how buildings perform, identify opportunities for improvement and meet the increasingly important energy-efficiency and Building Regulations requirements affecting both new and existing properties.

Our services range from EPC surveys, heat loss assessments and roof surveys to SAP calculations, sustainability reports, Predicted Energy Assessments and Part O overheating assessments.

As part of JPEC Group, we also provide the technical governance and compliance expertise that supports our Electrical, Green Energy and Fire & Security divisions, helping ensure projects are properly surveyed, designed, installed, tested and documented.

Building Energy, Sustainability and Compliance Services

Understanding a building properly is often the first step towards improving it.

Energy consumption, heat loss, insulation, glazing, heating systems, ventilation, solar gain and the construction of the building can all affect its comfort, efficiency and environmental performance.

For new developments, there are also increasingly detailed Building Regulations requirements that need to be considered before construction begins.

JPEC Building Services provides the surveys, calculations and technical assessments needed to understand these factors and make informed decisions about the building.

Our services include:

EPC Surveys and Energy Performance Assessments

An Energy Performance Certificate, or EPC, provides an assessment of a property’s energy efficiency and indicates where improvements may be possible.

JPEC Building Services is certified to carry out EPC surveys and energy assessments for properties across Surrey and West Sussex.

The assessment considers how the property currently performs and can identify opportunities to improve energy efficiency, reduce heat loss and potentially lower energy consumption.

Recommendations can range from relatively straightforward improvements through to larger changes involving insulation, heating systems or renewable energy technology.

An EPC can therefore be more than a certificate. It can provide a useful starting point for understanding how a building performs and where future investment may have the greatest impact.

Building Condition and Energy Reports

When planning improvements to a property, it is important to understand its existing condition before deciding what work should be carried out.

JPEC Building Services can assess the building and provide clear information about its current performance and areas where improvement may be required.

This can help homeowners, landlords, property managers and businesses make better-informed decisions about maintenance, refurbishment, energy efficiency and future investment.

Where additional specialist surveys or calculations are required, our wider team can provide a joined-up approach rather than looking at individual aspects of the property in isolation.

Sustainability Reports

Improving the sustainability of a building often requires looking beyond one individual technology.

JPEC Building Services prepares sustainability reports for domestic and commercial properties, helping clients understand their existing environmental impact and identify practical opportunities for improvement.

This can include looking at:

Energy consumption
Building fabric
Heating and hot water
Insulation
Electricity usage
Renewable energy opportunities
Energy storage
Electric vehicle charging
Potential carbon reductions

The aim is to provide a practical route towards a more efficient and sustainable building rather than simply recommending individual products.

Where improvements involve renewable energy technology, JPEC Building Services can work alongside JPEC Green Energy to help turn recommendations into a properly designed and installed solution.

Decarbonisation Assessments

Many homeowners, businesses and organisations are looking for practical ways to reduce their reliance on fossil fuels and lower the carbon emissions associated with their buildings.

JPEC Building Services can assess the existing property and develop a strategy for reducing its energy consumption and carbon footprint.

Decarbonisation measures can include improvements to the building fabric alongside technologies such as heat pumps, solar panels, battery storage and EV charging.

The right approach will depend on the building itself.

Installing new technology without first understanding energy demand, heat loss and the existing infrastructure can result in a system that does not perform as expected. Our approach therefore begins with the building and its energy requirements before considering the most appropriate improvements.

Heat Loss Surveys

If a building is difficult or expensive to heat, understanding where that heat is being lost is an important first step.

JPEC Building Services carries out professional heat loss surveys to identify areas where a property may be losing heat and where improvements could make the greatest difference.

Heat can escape through several parts of a building, including walls, roofs, floors, windows and doors. Ventilation and air leakage can also have a significant effect.

A heat loss assessment can help identify weaknesses within the building and provide useful information when considering:

Insulation improvements
Window or door upgrades
Heating system changes
Air source heat pumps
Energy-efficiency improvements
Refurbishment projects

Heat loss calculations are particularly important when designing a heat pump system because the heating system needs to be appropriately sized for the requirements of the property.

By assessing the building first, we can help ensure later decisions are based on evidence rather than assumptions.

Roof Surveys for Solar Panel Installations

Solar panels place additional loads on a roof, so the condition and structural suitability of the roof should be considered before an installation takes place.

JPEC Building Services provides roof surveys to assess whether a roof is suitable for the proposed solar installation.

Our team can use computer-aided design and structural assessment techniques to consider the additional loads that may be placed on the roof, including the solar array itself and environmental factors such as snow loading.

This helps identify potential structural issues before installation and provides greater confidence that the proposed system can be installed safely.

Where the roof is suitable, JPEC Building Services can work alongside JPEC Green Energy as part of the wider solar design and installation process.

SAP Calculations

SAP calculations are an important part of demonstrating the energy performance of new-build homes and certain conversion and extension projects.

JPEC Building Services provides SAP calculations to assess how a proposed building is expected to perform against the requirements of Building Regulations Part L.

The calculation considers several elements of the building, including:

Walls, floors and roofs
Insulation and building fabric
Windows and glazing
Heating systems
Hot water
Ventilation
Air permeability
Solar gain
Renewable energy technologies

Carrying out SAP calculations during the design stage can identify potential compliance issues before construction progresses too far.

If a proposed building does not achieve the required performance, we can help identify which areas could be changed to improve the result.

This gives developers, architects and homeowners an opportunity to make informed adjustments to the specification before those changes become expensive or disruptive.

Predicted Energy Assessments

A Predicted Energy Assessment, commonly known as a PEA, provides an indication of the future energy performance of a property before construction has been completed.

It effectively provides a predicted EPC rating based on the proposed design and specification.

PEAs are particularly relevant when new homes are being marketed or sold before they have been completed.

JPEC Building Services can prepare Predicted Energy Assessments alongside SAP calculations, helping developers understand and demonstrate the expected energy performance of a property at an early stage.

Once the building is complete, the final energy assessment can then be carried out using the completed specification.

Part O Overheating Assessments

Modern homes are increasingly designed to retain heat, but highly insulated and airtight buildings can also be at greater risk of overheating during warmer weather.

Building Regulations Part O addresses this issue by requiring overheating risk to be considered in applicable new residential developments.

JPEC Building Services provides Part O overheating assessments to help developers and designers demonstrate that overheating risk has been properly considered.

The assessment considers factors such as:

Window sizes
Orientation
Solar gain
Shading
Ventilation
Building layout
Local environmental conditions

By assessing overheating during the design stage, changes can be made before construction begins if the proposed building is likely to experience excessive temperatures.

TM59 Overheating Assessments

For projects requiring more detailed analysis, JPEC Building Services can also provide TM59 overheating assessments using dynamic thermal modelling.

Rather than considering the property at a single point in time, dynamic modelling can simulate how temperatures within the building are likely to change throughout different periods and conditions.

This provides a more detailed understanding of how the proposed property is expected to perform and whether additional measures may be required to control overheating.

Solutions could involve changes to glazing, shading, ventilation or other aspects of the building design.

Considering these issues early can help improve occupant comfort while avoiding the need to address overheating after a development has already been constructed.

Energy Optimisation and Low-Energy Building Design

Good building design is about more than achieving the minimum required standard.

JPEC Building Services can work with homeowners, developers and design teams to improve the overall energy performance of a proposed project.

By reviewing the building fabric, glazing, heating, ventilation and renewable energy strategy together, we can identify opportunities to reduce energy demand and improve predicted performance.

This can help projects achieve:

Lower energy consumption
Reduced running costs
Improved EPC ratings
Better SAP results
Lower carbon emissions
Greater use of renewable energy
Reduced reliance on grid electricity

For projects aiming for particularly low running costs, we can also explore energy optimisation and “zero bills” strategies.

This can involve combining a highly efficient building fabric with technologies such as solar panels, battery storage, heat pumps and smart energy management.

The aim is to consider the building as one complete energy system rather than treating each technology separately.

Support for New-Build Developments

Energy performance and regulatory compliance need to be considered early in the design of a new building.

Waiting until construction is nearing completion can significantly reduce the options available if the project fails to meet the required standard.

JPEC Building Services can support new-build projects from the early design stages through to completion.

Depending on the development, this can include:

SAP calculations
Predicted Energy Assessments
Part O assessments
TM59 overheating modelling
Sustainability assessments
Energy optimisation
Renewable energy strategy
Roof assessments
Final EPC certification

Working through these requirements together can make it easier to identify conflicts and opportunities within the design before construction begins.

Support for Existing Buildings

Our services are not limited to new developments.

Existing homes and commercial properties can often benefit considerably from understanding how and where energy is being used or lost.

An EPC survey, heat loss assessment or wider sustainability review can help establish the current position and create a practical plan for improvement.

This can be particularly useful before undertaking a major refurbishment or investing in technologies such as solar panels, battery storage or a heat pump.

Instead of beginning with a particular product, JPEC Building Services can help establish what the building actually needs.

A Joined-Up Approach Across JPEC Group

One of the key advantages of JPEC Building Services is our position within the wider JPEC Group.

Our recommendations do not have to end with a report.

Where a project identifies the need for electrical improvements, renewable energy technology or other specialist work, we can draw on expertise from elsewhere within the Group.

JPEC Electrical can assist with electrical infrastructure and installation, while JPEC Green Energy can provide technologies including solar PV, battery storage, heat pumps and EV charging.

JPEC Building Services provides the surveying, assessment, design and compliance expertise that helps ensure these projects begin with the right information.

This creates a more joined-up process from initial assessment through to design, installation, testing, commissioning and certification.

Compliance Assurance Across JPEC Group

JPEC Building Services also plays an important role behind the scenes across the wider JPEC Group.

Modern electrical, renewable energy and building projects are governed by extensive regulations, technical standards, certification schemes and codes of practice.

Our Building Services team helps ensure that JPEC projects follow the appropriate processes from initial survey and design through to installation, testing and commissioning.

We also support the Group’s ongoing certification, accreditation and quality-control processes, including internal inspections and audits.

For customers, this provides additional reassurance that compliance is considered throughout the project rather than simply at the point of final certification.

Building Services Across Surrey and West Sussex

JPEC Building Services is based at the JPEC Group head office in Horley and works with homeowners, landlords, developers and commercial clients throughout Surrey and West Sussex.

We regularly support projects in Horley, Reigate, Redhill and Crawley, as well as surrounding towns, villages and rural areas.

Whether you need an energy assessment for an existing property, calculations for a new development or a wider strategy for improving building performance, our team can provide the technical expertise required.

Why Choose JPEC Building Services?

Building performance can be complicated.

Energy efficiency, structural considerations, Building Regulations, renewable technologies and occupant comfort often overlap, which means looking at one element in isolation does not always provide the best answer.

JPEC Building Services takes a wider approach.

We assess how the building performs, identify the relevant technical and regulatory requirements and provide practical recommendations based on the individual property or project.

As part of JPEC Group, we can also work alongside our electrical and renewable energy specialists where the recommendations need to be turned into physical improvements.

Whether your priority is achieving Building Regulations compliance, improving an EPC rating, reducing heat loss, planning a new development or creating a more energy-efficient building, JPEC Building Services can help.

Discover JPEC Building Services

For more information about EPC surveys, sustainability reports, SAP calculations, heat loss surveys, Part O assessments and our other building energy and compliance services, visit the dedicated JPEC Building Services website.

There you can explore each service in more detail, read practical guidance from our team and get in touch to discuss your property or project.

jpecbuildingservices.co.uk