Serving Homes & Businesses
— PROPERTY SERVICES —
Quality you can trust. Services you can rely on.
Hands-on services for your home and garden — delivered with care, skill, and attention to detail that lasts.
Formal experience in procurement, contract management, and quantity surveying for projects of every scale.
From a freshly painted hallway to a professionally managed construction contract — every job receives the same standard of work.
Accurate cost planning, tendering, and contract administration for projects of all sizes. Formally trained QS with an RICS-accredited MSc, delivering professional expertise for homeowners, developers, and contractors alike.
RICS Accredited DegreeStrategic sourcing and supplier management for construction and property projects. Reducing costs without compromising quality — delivered by an experienced professional.
Construction & PropertyEnd-to-end contract administration ensuring your projects run on time, within budget, and to specification — from initial tender through to final account.
Professional ServicesPrecision interior and exterior decorating that transforms your space. From feature walls to full property refreshes, every surface prepared properly and finished to last.
Interior & ExteriorTidy, structured, and beautifully maintained outdoor spaces. Regular upkeep, one-off clearances, planting, and lawn care — your garden, looked after properly.
Residential & CommercialNo job too small. Flat-pack assembly, repairs, fixes, and those odd jobs that have been on the list too long. Reliable, tidy, and done right first time.
All Property TypesI'm Harrison Wallace — a RICS-accredited Quantity Surveyor and experienced tradesman, now back in the UK and offering a rare combination of professional consultancy and hands-on property services through Harristotle Property Services.
My commercial background includes quantity surveying and procurement roles on projects ranging from £350k residential builds to £90m mixed-use developments, with formal experience in cost planning, JCT contract administration, procurement strategy, and financial analysis.
Alongside the consultancy work, I've spent years building and decorating independently — from interior and exterior decorating to full garden maintenance, carpentry, and general property upkeep. I've worked on everything from a timber cabin renovation in Sweden to multi-unit housing projects in New Zealand.
Whether you need a room refreshed, a garden maintained, or professional QS support on a development project — the standard is the same. Reliable. Thorough. Done properly.
Qualifications
Recent Experience
Quantity Surveyor
Breen Homes · New Zealand · 2024–25
Sole QS across residential projects from $350k–$3m. Contributed to a 220% revenue increase within 12 months.
Assistant Quantity Surveyor
Inland Homes PLC · North London · 2021–23
Cheshunt Lakeside Development — including a 205-unit PRS scheme (£90m) and a 22-unit private development (£10m).
Self-Employed Tradesman
UK, Sweden & New Zealand · 2017–present
Decorating, garden maintenance, carpentry, roofing, and property upkeep — built on word of mouth and repeat clients.
"From the ground up, inside and out — every project treated as if it were our own." — Harristotle Property Services
Ready to get started or just have a question? Get in touch and I'll get back to you promptly.