
Reclaimed-brick rear extension
A single-storey rear extension built in reclaimed brick to match the house, with steel beams over the new openings and a blockwork inner leaf. Photographed as the walls and steelwork went up.
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Real jobs across the East Midlands, built by the people you deal with.

The quote was fixed, the site was spotless and the extension was finished a week early. We would not use anyone else.
Sarah and James T
Double storey extension, Long Eaton
One phone number for the whole job. Every trade turned up when Keystone said they would.
Mark D
Loft conversion, Beeston
The alcove units are better made than furniture we have paid three times as much for.
Priya K
Joinery, Derby
Extensions, loft conversions, full renovations, kitchens and bathrooms, joinery and commercial fit-outs, planned and run by Subi and Zach.

Single and double storey extensions, from footings to finish. We manage groundwork, structure, roofing and the finishing trades.
Dormer and hip-to-gable conversions with the structural work included, designed around a proper staircase.

Whole-house refurbishment and structural alterations. We strip back, re-plan and rebuild so the house works the way you live.

Design, fitting, plumbing, tiling and electrics, run by us so the finish lines up.

Wardrobes, alcove units, staircases and media walls, made to measure in our own Long Eaton workshop.

Shops, showrooms and offices. The work we started out doing.
Keystone Build Group is Subi and Zach. Between us we have years of hands-on experience across construction, refurbishment and property maintenance. The workshop is still where we set our standards, and it is why our finish stands up to a close look.
You deal with one of us from first visit to handover. We keep sites tidy, we turn up when we say we will, and we finish what we start.

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Kinds of work we take on
1
Point of contact, first visit to handover
NG10
Own workshop at West End Mill, Long Eaton
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Founders on the tools, Subi and Zach
The same straightforward route on every job, whether it is an alcove unit or a double storey extension.
We visit, measure up and listen. You get honest advice on what is possible and what it is likely to cost.
Drawings and structural calculations where the job needs them, plus a quote broken down in plain English.
One point of contact runs your job. Tidy site, agreed hours, and progress you can see week by week.
We walk the job with you, clear the snagging list, and stay on hand afterwards.
Three jobs that show the range, two extensions and a full open-plan renovation.

A single-storey rear extension built in reclaimed brick to match the house, with steel beams over the new openings and a blockwork inner leaf. Photographed as the walls and steelwork went up.
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A rear extension taken to roof and shell stage in matching red brick, with a feature arch, sandstone coping and a fibreglass flat roof with a formed rooflight opening.
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Dining and living areas opened into one space, with structural steelwork, polished tiled flooring, timber-framed bi-fold doors onto the decking and an inset wood burner.
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Run by the people who do the work
Tell us what you are planning. We will visit, measure up and give you a quote, with no pressure and no obligation.
Subi or Zach. The same person runs your job from first visit to handover, and you will have their direct number, so you always deal with the people doing the work.
We arrange drawings, structural calculations and building control inspections as part of the Design step, and we deal with the inspectors on site.
We clear the snagging list with you at handover and stay on hand afterwards. If something is not right, we come back and fix it.