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Steve Crump

Managing Director

A Family Business

We are a family-run company established over twenty five years ago. We are based in Killamarsh, North East Derbyshire - some ten miles from the centre of Sheffield. We have a reputation for providing good quality, reliable and competitive services. Jennifer Crump and Stephen Crump are Directors and both take a hands on approach to running the company.

New branches
In 2008 we opened a branch in Devon and have been working since then with councils in the south west area on the very successful CosyDevon scheme. In 2014 we opened a depot in Birmingham followed by a new depot opening in 2016 on the Isle of Wight to start running the Warm Up Wight Scheme.

Green Deal & ECO
The company expanded in 2012 as the industry prepared for Green Deal and the Energy Company Obligation. We set up heating teams in Sheffield and Devon, and became Green Deal-approved installers and surveyors.

Award winning company
J&J Crump & Son Ltd has won South West Installer of the Year 2014 at the regional Green Deal and ECO awards.

Working with partners
We now provide a complete service to individual customers and to local authorities, housing associations and private landlords. We also work with specialist companies and with energy agencies to continue to offer a quality service. We employ over 80 local people to their respective locations thus ensuring we look after the local community.

Our Business

- Loft insulation
- Cavity wall insulation (inc. hard-to-treat)
- Gas central heating
- Home energy surveys
- Cavity wall tie replacement
- Cavity wall insulation extraction

Fleet of Vehicles

We have invested in a fleet of specialist vehicles designed for specific purposes. For example, our heating vans are fitted with special equipment and tools needed by heating engineers. Our vans are specially designed to enable efficient delivery of insulation into your walls; these are different to our 'mineral fibre' vans and our 'loft' vans. The right van - and the right crew - for the right job.

Experienced Professional Team

Our team of experts have many decades of experience between them. Our insulation and heating installers have the appropriate professional qualifications.

Our business is based on continual recommendation - our customers recommending us to friends, neighbours and relatives. We believe in continuous improvement of our services, which we achieve through staff training and skills development. In this way our staff are always up-to-date with latest developments.

Our aim is to do better than good practice: we want to provide best practice.

Quality Products

Here at J&J Crump & Son Ltd we use only the very best products that are best suited to your particular property and location.

We like to offer a choice wherever possible, depending on your needs and your budget. For example, we install mineral fibre cavity wall insulation materials. Our boilers and other heating products are well-known and respected national brands, such as Ideal and Worcester-Bosch.

We will let you know what products we recommend, but the final choice is yours.

We pride ourselves on your feedback

We pride ourselves on feedback from our customers. Why not see what they have to say?

View our feedback

We're Industry Accredited Professionals

JJ Crump is a trading name of J & J Crump & Son Ltd. Our registered office can be found at 1a Nethermoor Lane, Sheffield, S21 1BZ. We are registered in England No. 4153056 and are authorised and regulated by the Financial Conduct Authority. We are a credit broker and not a lender. We offer credit facilities from one lender.