Cobalt Carbon Free

Working with people guided by a strong sense of conscience is both refreshing, rewarding and 'unique' in today’s cut throat world. Finding a builder to trust is very difficult, especially one experienced and interested enough to provide sound independent advice across a spectrum of building skills and trades. Our customers share our sense of conscience and values, recognising loyalty; quality, reliability and trust, reflected in our long term guarantees. Welcome to Cobalt Carbon Free.


  • 1.Damp Proofing Specialist
  • 2.Insulation Installer
  • 3.Restoration & Refurb Specialist
  • 4.Conversion Specialist
  • 5.Loft Conversion Specialist
  • 6.Plasterer

About Cobalt Carbon Free

Our customers are looking to modify and improve their homes in some way and we know this will involve walls, floors, roofs, lofts, and basements. Whether this is a step-by-step approach or they want to carry out a full refurbishment of the property. We organise our business around our customers’ needs and not the other way around.

We love to get our teeth into a good home building project, be it a loft-conversion, waterproofing and damp-proofing scheme- including cellar and basement conversions, or designing & constructing a new extension, as well as refurbishing existing areas of the house.

We use a variety of technologies, from the latest thermal insulations, to damp-injection treatments, to cutting-edge plumbing & ventilation systems- ensuring you that a Cobalt build is always low-carbon, energy efficient, good value for money, and above all looks fantastic!

To give you a flavour of the scope of our work; services, and skills on offer, take a look at the before and after pictures above from a customer whose bungalow we have just finished. It looks fantastic and feels amazing. Our customer reviews say it all. They are delighted, we are delighted, and that’s how we like to work.

Our team has the skills to design, plan, engineer, and build any home project that comes our way and the conscience to see it through to the end every time.


We are Stroma Certified & Accredited Domestic Energy Assessors.
Stroma Certification Number: STRI14497.

We are Green Deal Accredited Installers for the following types of insulation: Loft, Pitched Roof, Flat Roof, External Wall, Internal Wall, Hybrid Wall, &
Floor Insulation.

Our Staff are DBS (formerly CRB) checked & fully trained in Health & Safety, assessed to a (NOS) National Occupational Standard, and qualified to a minimum NVQ2 in their chosen trade.

We are CITB registered & in scope.


Public Liability Insurance

Limit of indemnity: £5,000,000.00
Valid until: 14th Jun 2019

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