*Location:* Liverpool (Office-based, full time)*Salary:* £40,000 – £45,000 per annum (depending on experience)*Hours:* Monday–Friday, 9:00am–5:00pm*Contract Type:* Permanent, full-time*About Us*Simple Heating Services Ltd are a *TrustMark-accredited installer* specialising exclusively in *domestic retrofit and energy-efficiency upgrades*, including *heating systems, insulation, and renewable technologies*.Our projects are delivered under *government-funded schemes such as ECO4, GBIS, and SHDF*, helping low-income and vulnerable households reduce their energy costs and carbon footprint.We are now seeking a *Senior Estimator* to join our head office team in Liverpool — someone with strong commercial acumen and a passion for improving homes through energy efficiency.*The Role*As a senior estimator, you’ll take ownership of all *cost management, valuations, and commercial reporting* across our *domestic retrofit projects* — ensuring each installation is delivered within budget, compliant with funding criteria, and financially robust.This role is new to the business. We are looking to branch out in to *Warm Homes: Social Housing Fund*. This will be a brand new department to the business. if proven successful, you will be responsible for building a team under you to win and manage more tenders.*Key Responsibilities:** Prepare and manage budgets, valuations, and cost reports for domestic retrofit projects (ECO4, GBIS, SHDF).* Oversee subcontractor payments, applications, and variations.* Liaise with funders and managing agents to ensure commercial and documentation compliance.* Maintain up-to-date cost tracking and forecasting for insulation, heating, and renewables measures.* Support tender and bid pricing for new contracts and frameworks.* Analyse project margins and identify opportunities for efficiency improvements.* Ensure all commercial processes align with *PAS 2035* and *TrustMark* standards.*About You*You’ll be a commercially minded professional with a background in *domestic retrofit or housing-sector projects*, and a keen eye for accuracy and compliance.*Essential Skills & Experience:** 3–7 years’ experience in Estimating or cost control within *domestic retrofit, housing, or energy-efficiency* projects.* Strong understanding of *valuations, cost forecasting, and funding-based project structures*.* Excellent Excel and numerical skills.* Confident communicator — able to work closely with internal teams, funders, and managing agents.*Desirable:** Experience with *ECO4*, *GBIS*, or *SHDF* project funding structures.* Understanding of *PAS 2035*, *TrustMark*, and retrofit compliance documentation.* Experience across heating, insulation, or renewable energy installations.*What We Offer** Competitive salary: *£40,000 – £45,000* (DOE)* Annual *performance-based bonus** 28 days annual leave* Pension contribution* Regular team events and wellbeing initiatives* Supportive, office-based team environment* Clear career progression to *Quantity Surveyor / Commercial Manager** *Professional Accreditation Support* – including funding and mentorship to achieve *RICS, CIOB, or equivalent qualifications**Why Join Simple heating Services?*We’re not just another contractor — we’re a purpose-driven organisation helping to tackle fuel poverty and improve the quality of homes across the UK.You’ll be joining a supportive, growing company where your role has real social impact and your professional development is actively invested in.Job Type: Full-timePay: Up to £45,000.00 per yearBenefits:* Canteen* Casual dress* Company events* Discounted or free food* Employee discount* Gym membership* On-site parking* Profit sharingAbility to commute/relocate:* Prescot L34 9HP: reliably commute or plan to relocate before starting work (required)Application question(s):* Have you previously worked on domestic retrofit, ECO4, GBIS, SHDF, or other energy-efficiency projects?* Are you currently working towards, or interested in working towards, professional accreditation (e.g., RICS, CIOB, or equivalent)?* How would you rate your proficiency with Microsoft Excel and cost-tracking tools?* What are your salary expectations for this role?* What sectors have you worked in as an estimatorExperience:* Estimating: 1 year (required)Licence/Certification:* Valid HNC HND Degree Quantity Surveying? (preferred)Work Location: In person