C W Johnson Limited Chartered Surveyors offer a building certification service for new build dwellings and conversion of non-domestic buildings to residential. Whether you are constructing a single new build or conversion, or a developer undertaking a multiple unit site, our Council of Mortgage Lenders (CML) Professional Consultants Certificate can offer the solution you are looking for.

Available to private individuals, self builders and developers alike, our comprehensive service will provide you with a Professional Consultants Certificate in full compliance with the requirements of the Council of Mortgage Lenders. Also known as a CML Building Certificate or Architects Certificate, our Professional Consultants Certificate is an alternative to a new build warranty with no deposit bond, membership fee or claims history required. Further information on the Professional Consultant Certificate can be found on the Council of Mortgage Lenders website here.

Our building certification service involves the inspection of new build or conversion properties at key stages to check the progress of works and to ensure our Chartered Building Surveyors have inspected the main structural aspects of the constructions works.

Our Professional Consultants Certificates provide a six year period of cover (as is required by the Council of Mortgage Lenders) and this can be extended to ten years should you or any prospective purchaser require as part of your sale negotiation, all backed by C W Johnson Limited’s Professional Indemnity Insurance which will be maintained for the duration of the desired period of cover as stated on the certificate.

Please click here to download a sample of our Professional Consultants Certificate.


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C W Johnson Limited also partner with leading structural warranty provider ABC+ to offer 10 & 12 year structural warranties* with C W Johnson Limited acting as site inspectors throughout the Norfolk and Suffolk areas.

A Structural Warranty, also known as a Latent Defects insurance is an insurance policy designed to protect against structural defects in newly built or recently converted buildings and will provide protection against structural defects in either workmanship or the risk of failure with construction materials.

The ABC+ Structural Warranty covers all types of properties from residential to commercial, newly built to converted, mixed development schemes to single dwellings, housing associations to self-builders. Retrospective applications are also available.

Further information on the ABC + structural warranty can be found on their website by clicking here.

To obtain a quotation for a 10 year structural warranty please click here to follow the link to the ABC+ website, or alternatively download and complete the application form here.

* Please note all structural warranties are arranged, administered and insured through ABC+.