Premium extensions & building services across Herts, Beds & Bucks
From custom rear extensions to complete roofing overhauls, JRG Build delivers top-tier craftsmanship, reliable local service, and modern finishes—on time and on budget.
“James and his team completed our two-storey rear extension exactly on schedule. The itemised quote meant zero surprises.”
Sarah Mitchell
St Albans, Hertfordshire
Built to standard, managed with precision
Every major project is personally overseen by James Gray across Hertfordshire, Bedfordshire, and Buckinghamshire, ensuring transparent communication and exact structural execution.
Bespoke single and multi-storey residential extensions designed for modern open-plan living, complete with structural steelwork, bi-fold installations, and full regulatory sign-off.
High-spec pitched slate, clay tile, and flat roofing solutions engineered to withstand extreme weather while preserving the architectural character of your home.
Specialist residential contracting from concept to completion
Full-spectrum structural and interior delivery across Hertfordshire, Bedfordshire, and Buckinghamshire. Managed on-site with disciplined craftsmanship and transparent oversight.
Extensions
Single and multi-storey home expansions engineered for seamless structural integration.
Renovations
Full-scale residential overhauls, structural reconfigurations, and period restorations.
Bathrooms
Bespoke wet rooms, luxury master en-suites, and precision-plumbed fixtures.
Kitchens
High-spec architectural cabinetry, islands, and integrated appliance layouts.
Roofing
Truss work, flat roof systems, standing seam metal, and pitched slate installations.
Plastering
Crisp drylining, skim finishes, structural rendering, and architectural coving.
Flooring
Engineered hardwood, microcement, poured resin, and acoustic subfloor prep.
Tiling
Large-format porcelain, natural stone, mosaic patterns, and precision mitred edges.
Maintenance
Proactive structural upkeep, roof inspections, and scheduled remedial works.
Landscaping
Architectural hardscaping, porcelain paving, structural retaining walls, and drainage.
Planning a residential build or overhaul?
Request a free itemised estimate with clear timelines and fixed specifications.
Built on clear quotes, direct oversight, and honest work.
You work directly with James Gray across Hertfordshire, Bedfordshire, and Buckinghamshire, with every cost itemised before work begins.
Local reliability
Established across Hertfordshire, Bedfordshire, and Buckinghamshire with verified local work and dependable scheduling.
Free itemised quotes
Transparent, line-by-line pricing with full breakdown of materials and labour before any construction begins.
Direct project management
Every build is personally overseen on-site by James Gray from the initial consultation through to final handover.
Premium finish quality
High-grade materials, precision structural detailing, and tidy working standards that respect your living space.
Ready to discuss your extension, renovation, or roofing project?
Request a free, itemised quote with zero obligations.
Request Your Free Quote
Tell us about your project and James will get back to you within 24 hours.
Project specification
Please complete the form below for an itemised, obligation-free estimate.
What to Expect
24-hour turnaround
James personally reviews your brief and replies within one working day.
Transparent itemised quote
Clear breakdown of materials, labour, and timelines before any commitment.
No sales pressure
Straightforward technical advice tailored to your property and budget.
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