Direct project oversight on every build.
JRG Build is directed by James Gray, bringing a structured, transparent standard to home extensions, roofing, and full renovations. Rather than passing your home between sales reps and subcontracted site managers, James manages your build personally from the first site consultation through to final sign-off.
Every job begins with a clear, line-by-line itemised quote so you know exact material specifications and labor costs before tools arrive on site. No hidden extras, no aggressive sales pitches—just disciplined craftsmanship and reliable communication.
James Gray
Principal Contractor
Clear management from planning to handover
We manage every phase on site, coordinate statutory approvals, and provide fixed itemised pricing before any construction begins.
Direct lead contractor oversight
Every project is guided directly by James Gray, ensuring uncompromising structural standards and immediate responsiveness across every trade.
Hands-on project management
Direct on-site supervision and single-point communication from initial groundwork through to final snagging.
Statutory building compliance
Full coordination with local planning authorities and building control to ensure every structural element meets regulations.
Transparent itemised pricing
Clear, item-by-item breakdown of labor, materials, and timeline milestones before contracts are signed.
Established regional reputation
Proven track record delivering extensions, roofing, and renovations across Hertfordshire, Bedfordshire, and Buckinghamshire.
Looking to discuss an upcoming extension, renovation, or roofing project in Hertfordshire, Bedfordshire, or Bucks?