Our services
Extensions, conversions and
renovations done properly
From the extension you have been dreaming about to a full renovation, every project is designed, managed and built by one team you can trust.
Our specialism
Home Extensions
From single storey rear and side return extensions to full double storey additions, we create light-filled space that transforms how your home works. Every extension is structurally sound, beautifully finished and built to add lasting value.
- Single storey rear and side return
- Double storey extensions
- Wrap-around extensions
- Open-plan kitchen extensions
Heart of the home
Kitchen Extensions & Renovations
Open-plan kitchen and dining extensions designed around the way you live, with crittall glazing, roof lanterns and bi-fold doors that flood the space with natural light.
- Roof lanterns and skylights
- Bi-fold and sliding doors
- Underfloor heating ready
- Seamless indoor to garden flow
03
Renovations & Refurbishments
Full and partial home renovations that bring tired properties up to a modern standard, from structural reconfiguration and replastering to kitchens, bathrooms and finishes.
- Internal reconfiguration
- Kitchens and bathrooms
- Replastering and finishes
- Period property sympathy
04
Landscaping & Garden Renovations
Patios, paving, decking, garden walls and full outdoor renovations that finish your project properly, turning the space around your extension into a garden you actually want to use.
- Patios, paving and porcelain
- Decking and raised terraces
- Garden walls and retaining structures
- Planting, turfing and drainage
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Groundworks & Structural
Foundations, drainage, retaining structures and structural alterations carried out to engineer specification, giving every project a base it can rely on.
- Foundations and drainage
- Steel beams and RSJs
- Retaining structures
- Structural alterations
How it works
A clear path from idea to handover
Five simple steps, one team, and no surprises along the way.
Consultation
We visit your home, listen to how you want to live, and talk honestly about what is possible and what it should cost.
Design & Planning
We work with trusted architects and engineers to develop drawings, handle planning and building control, and refine the detail.
Fixed Quote
You receive a clear, itemised quote with no hidden extras, so you know exactly what you are paying for before we start.
The Build
One dedicated team manages your project from first dig to final coat, keeping the site tidy and keeping you informed.
Handover
We walk you through the finished work, hand over certificates and guarantees, and stay on hand long after the keys are back.
Good to know
Questions, answered
The things homeowners ask us most about extensions, planning and getting started.
Many single storey extensions fall under permitted development and do not need full planning permission, but it depends on the size, your property and your location. We assess this at the consultation stage and handle planning and building control on your behalf where it is needed.
Every extension is different, so we provide a clear, itemised fixed quote after understanding your project rather than a vague estimate. As a guide, single storey extensions typically start in the tens of thousands and rise with size, glazing and finish. We will always be honest about budget early on.
A single storey rear extension typically takes around 10 to 16 weeks on site once started, while double storey extensions and loft conversions can take longer. We give you a realistic programme before we begin and keep you updated throughout.
We work across Hertfordshire, Bedfordshire and London, including St Albans, Stevenage, Hitchin, Welwyn Garden City, Bedford, Luton, Barnet and the surrounding areas. If you are nearby, get in touch and we will let you know.
Yes. One accountable DNR team manages your build from the first consultation through design, planning, groundworks and finishing. You deal directly with the people doing the work, not a chain of subcontractors.
Matching brickwork, rooflines and details is something we take seriously. We source materials carefully so a new extension reads as part of the original home rather than an obvious add-on.
Let us build it
Ready to make more of your home?
Tell us about your project and we will arrange a no-obligation visit, honest advice and a clear fixed quote.