Construction cost experts
JC Build Consultancy is a construction estimating and commercial support practice providing accurate, no-nonsense cost advice for residential projects.
We specialise in detailed estimates, take offs and structured cost plans — giving builders, developers and homeowners clear numbers they can build with confidence. We are specialists in Loft Conversions, Extensions, New Builds and Refurbishments for a mixture of clients.
Budget is Key
Projects stall when the numbers aren’t clear. We provide precise estimates, structured tender packs, and easy-to-follow cost plans — so you can move to site with confidence.
From loft conversions and extensions to new builds and refurbishments, we tailor our service to suit your needs. Working alongside builders, developers, subcontractors and homeowners, we deliver clear, reliable commercial support at every stage.
Construction Cost Experts
Services
We provide detailed construction estimates and professional QS support to keep your projects commercially controlled from day one.
From take-offs and tender pricing to cost plans, valuations and variation management, we help builders, developers and homeowners understand exactly where their money is going, and how to protect your margin
Estimating & Take Off
Robust, auditable quantities and current market rates
Schedule of Works
Scope writing and easy to read schedules that reflect the design
Valuations & Commercial Support
Stage payments, variations, cashflow clarity
Supply-Chain Access
Vetted trades and introductions that actually pick up the phone
Private Home Owner & Developer Reports
Realistic budgets and cost plants before you commit to spending
Who We Help
We support builders, developers, subcontractors and homeowners who need clear, reliable cost advice before committing to site.
Whether pricing a tender, planning a project, or reviewing costs mid-build, we help you stay informed, protected and commercially in control.
Architects
Early budgets, tender support, client-friendly packs
Builders & Developers
Take-offs, valuations, estimates, BOQ's, Quotations
Homeowners
Honest costs, scope clarity, access to reliable trades
Subcontractors
Professional quotations, BOQs, win-rate support
Proof
16+
Years across refurbishments, extensions, new-builds, and conversions
Transparent deliverables (Excel + PDF), plain-English notes, quick revisions
Repeat work with architects, builders, and owner-developers
Frequently Asked Questions
Typically 3–5 working days, depending on scope.
Residential, commercial, and fit-out.
Latest drawings, spec, programme targets, and constraints.
Yes—defined scope, fixed fee, straightforward terms.