Assistant Sustainability Consultant

Weston Homes Plc; Takeley; On-site; GBP 28,000 - 36,000; Full time

Benefits offered by this job

Company vehicle or car allowance

Private healthcare for employees & a+

Pension scheme (employer contribution)

26 days holidays

Life Insurance

Income Protection

Discretionary annual bonus

Gym at head office

Ongoing training & development

Enhanced maternity/paternity pay

Occupational Health Nurse

Long service awards

Staff social calendar

Job summary

Sustainability Energy Services (SES) is seeking an Assistant Energy & Sustainability Consultant to join our dynamic team in the South East. You will gain hands-on experience across residential energy compliance, thermal modeling, and sustainability strategies while receiving structured training to support your career progression.

In this role you will work with experienced consultants, supporting SAP assessments, EPC generation, Part L/O compliance, and fieldwork with SBEM/ TM59 for commercial

Qualifications

• OCDEA qualification or equivalent in energy assessment
• GCSE grade C/4+ in Maths and English
• Proven track record conducting SAP assessments for new builds/refurbishments
• Experience with non-domestic SBEM modeling (Level 3/4)
• Familiarity with RdSAP for existing dwellings
• Knowledge of thermal bridging calculations and condensation risk assessments
• Understanding of local planning policies and Building Regulations Part L/O

Responsibilities

• Energy & Compliance Modeling: SAP, HEM, EPCs
• Thermal & Overheating Analysis: TM59 dynamic simulations
• Sustainability Strategy: draft Energy Statements for development projects
• Consultancy & Fieldwork Support: shadow senior consultants on dynamic modeling and SBEM assessments
• Business Development & Team Support: assist with marketing and Weston Group initiatives

Skills

SAP assessments

HEM evaluations

Energy Statements

SBEM modeling

RdSAP methodology

U-value calculations

Thermal imaging

Overheating assessments

Education

OCDEA

GCSE Maths & English

Tools

SBEM software

TM59 modeling

Job description

A little bit about the role...

Are you looking to kickstart or advance your career in energy consultancy? Sustainability Energy Services (SES) is seeking a motivated and analytical Assistant Energy & Sustainability Consultant to join our growing team.
In this role, you will work alongside experienced consultants, gaining hands‑on exposure across residential energy compliance, thermal modeling, and sustainability strategies, while benefiting from structured training to support your career progression.

Responsibilities

• Energy & Compliance Modeling: Conduct SAP assessments, Home Energy Model (HEM) evaluations, and generate Energy Performance Certificates (EPCs).
• Thermal & Overheating Analysis: Perform Part O simplified overheating assessments for residential properties and assist with TM59 dynamic thermal simulation modeling under CIBSE guidelines.
• Sustainability Strategy: Assist with drafting comprehensive Energy Statements for development projects.
• Consultancy & Fieldwork Support: Shadow senior consultants to build expertise in dynamic modeling, thermal imaging surveys, and SBEM assessments for commercial buildings.
• Business Development & Team Suppt: Collaborate with consultants and the administrative team to assist with marketing initiatives and broader work across the Weston Group.

Qualifications

• Qualifications: Qualified On-Construction Domestic Energy Assessor (OCDEA); GCSE Grade C/4 or above (or equivalent) in Maths and English.
• Technical Experience: Proven track record conducting SAP assessments for new builds and refurbishments, alongside the ability to carry out U-value calculations.
• Experience with non-domestic SBEM modeling (Level 3 and 4).
• Familiarity with RdSAP methodology for existing dwelling assessments.
• Knowledge of bespoke thermal bridging calculations and condensation risk assessments.
• Planning & Compliance: Strong understanding of local planning policies, energy statements, and Building Regulations (specifically Part L and Part O).

Benefits

• Highly competitive Annual Salary
• A company vehicle or car allowance and fully expensed fuel card for personal and professional milage
• Generous company pension (employer contribution up to 10%) increasing with length of service
• Private healthcare for employees, partner and children up to the age of 21
• 22 days holidays, plus English bank holidays, plus the Christmas shutdown (not deducted from your holiday allowance)
• Life Insurance - 4x salary
• Income Protection
• Discretionary Annual Bonus depending on company performance
• Fully equipped gym at head office - Health Checks, Gym Programmes, and Healthy Lifestyle Sessions
• Extensive training and development opportunities
• Enhanced Maternity, Paternity Pay
• In house Occupational Health Nurse
• Long Service Awards
• Vouchers to celebrate marriage, the birth / adoption of a child
• Comprehensive social calendar including but not limited to; Family Fun Day; Company Bowling, Christmas Party and various activities and sporting events throughout the year.

About us

SES are a local Health and Safety Consultancy providing a "one stop shop" for all environmental services including energy, testing, sustainability and analysis requirements for Clients throughout the South East. We work collaboratively to ensure we exceed our clients needs.