Home / Basement Conversions Durham
Turn a damp, unused cellar into a proper room. Basement and cellar conversions across Durham, fully tanked and finished by one firm.

Plenty of older Durham properties, particularly the Victorian terraces around the city and Gilesgate, have a cellar that's used for nothing but storing junk. Converted properly, it becomes a room: a snug, an office, a utility, even a guest space.
The bit that matters most is the bit you can't see: tanking and waterproofing. We design the waterproofing properly to BS 8102, handle any underpinning or structural work, and finish the space with electrics, heating and decoration, all in-house.
Get the waterproofing wrong and a basement is a recurring nightmare. We do it once, do it right, and stand behind it.
The people on your job work for ATKINSONS. One firm accountable for the lot.
A named Contracts Manager from first visit to final certificate.
Real people answer, day or night. Engineers dispatched, not job numbers logged.
In writing, in plain English. No surprises in the small print.
Tell us the work, the property, your timescale and budget through our quick form, and upload any plans or photos. Everything in one place from the start.
We review what you've sent and decide the best next step, whether that's pricing straight away or sorting drawings, planning or building control first.
Where it's needed, we come and look properly: access, structure, levels and anything affecting the cost. Your chance to ask questions before we quote.
A clear, transparent quote setting out what's included, assumed and excluded, with a payment structure. Confidence in what you're accepting, not a one-line price.
Once you're happy, we sort dates, materials, access and building control before anyone lifts a tool, so the job runs smoothly on site.
Our team arrives clear on the agreed scope, keeps the site tidy, communicates as we go and respects your home throughout.
Basement work is more involved than a standard room because of the waterproofing and any structural work, so cost varies a lot. We survey your Durham property and give a fixed written quote, no obligation.
Most are, but head height, damp and structure all matter. We assess all of it at a free visit and tell you straight whether it's worth doing.
We design the waterproofing properly to BS 8102, usually a combination of tanking and a cavity drainage system. This is the single most important part of the job and we don't cut corners on it.
Converting an existing cellar usually doesn't need planning permission, though building regulations always apply. Lowering the floor or altering the structure may need more. We check and handle it.
Typically several weeks to a few months depending on the structural and waterproofing work involved. We give a written programme before starting.
Yes, building control sign-off and certification are part of the job.
Fill this in and one of the team rings you back, usually within one working day. Prefer to talk now? Call 0191 369 2405, manned 24/7.
Whatever the brief, the route in is the same: ring us, we'll visit, we'll come back with a fixed price in plain English. Free site visits across Durham, Sunderland and Newcastle.
Or email enquiries@atkinsonsgroup.co.uk
No call-out charge for quotes. Fixed prices, in writing.