Lead Heating Engineer (ASHP) Location: Kimbolton (PE28) regional travel required (no remote working) Working Hours: MondayFriday, 8:00 am 5:00 pm Salary: £40,000 £50,000 per annum (DOE)
Overview & Growth Plan
Our client is expanding into the renewable heating sector, focusing on air source heat pump (ASHP) installations across domestic and small commercial projects.
The business is scaling rapidly, with a clear plan to grow its renewable division into a multi-million-pound operation over the next 5 years. This is a key leadership hire to drive that growth.
Current pipeline:
30 secured ASHP installations (local authority contract over 12 months)
Circa 50 private installations per year targeted
Strategy to build in-house capability alongside subcontract delivery teams
Role Summary
This is a hands-on leadership role covering full lifecycle delivery of ASHP projects, including surveying, design, installation oversight, commissioning, and aftercare.
You will combine technical engineering capability with site leadership and commercial awareness, playing a central role in building and scaling the renewable heating division.
Core Responsibilities
Conduct site surveys and assess existing heating systems
Determine viable renewable heating solutions (primarily ASHP retrofits)
Carry out heat loss calculations and system sizing
Produce heat pump system designs using software
Create bills of materials and support procurement
Provide technical support to the sales team
Oversee installations and manage subcontractors/install teams
Support commissioning and system handovers
Handle aftercare, troubleshooting, and post-install issues
Ensure quality, compliance, and MCS standards are met
Technical & Delivery Capability
Strong understanding of retrofit heating systems and real-world installation constraints
Able to independently carry out heat loss calculations and full system design
Competent in using design software (e.g. Midsummer or equivalent)
Experience producing schematics and material specifications
Capable of diagnosing and resolving technical installation issues
Comfortable leading site activity and ensuring quality of delivery
Leadership, Ownership & Culture Fit
Proven ability to take ownership of projects and deliver end-to-end responsibility
Confident in managing subcontractors and supporting engineers on site
Commercially aware with an understanding of cost, margin, and value engineering
Hands-on, proactive, and solution-focused approach
Self-motivated with a strong desire to build and scale a division
Positive, driven, and comfortable working in a fast-growing business environment
Requirements
Experience & Background
Time-served plumbing/heating engineer (circa 10+ years experience)
Strong domestic and small commercial background
Proven hands-on experience with air source heat pump installations
Must currently be working within the renewables sector (ASHP experience essential)
Retrofit system experience is essential
Technical Requirements
Heat loss calculations and system design capability
Experience with ASHP design and installation challenges
Ability to work across design, site delivery, and troubleshooting
Compliance
MCS understanding required
Gas Safe and heat pump qualifications advantageous (case-by-case basis)
Location & Working Style
Must live within approx. 30 minutes of Kimbolton (PE28)
Split between site work and office-based design/coordination
Not suitable for fully office-based candidates
Some flexibility required for project delivery needs
Package & Benefits
Company vehicle (role dependent) + fuel card
Mobile phone and laptop
Pension contribution
20 days holiday + bank holidays
+1 additional day per year after 2 years service
Flexible working approach with mutual expectation of flexibility
Occasional evening/weekend work when required
Overtime paid where applicable
Bonus Scheme
10% of company profits shared across employees at Christmas
Discretionary but consistently paid over the past 10 years
Hiring Approach
We are looking for a reliable, proven engineer who can contribute immediately and help build the division not a high-risk development candidate.
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