HTS is a small but very experienced consultancy that specialises in Quadrennial Inspections, Professional Structural Investigations and Appraisals, Targeted Specialist Inspections including Micro-Drill Surveys, Heritage Significance Assessments in accordance with BS7913, Historical Research and Analysis of Historic buildings, Heritage Impact Assessments in accordance with BS7913, Preparation of Specifications and Drawings for Conservation and Repair, Project Management, Construction Management and Site Supervision.
Areas of expertise include Monuments, Historic Buildings and Bridges, Historic Marine Structures and World War I & II Hangars for Commercial Clients, Private Owners, Facilities Management Companies of behalf of the MoD and Local Authorities.
Conservation and Repair of the Tinside Bathing House and Arcaded Sun Terrace, Plymouth Hoe on behalf of Plymouth City Council.
The roofs of the buildings form part of the integrated walkways of the Plymouth Hoe foreshore which were constructed in 1913. The buildings are of unique construction, Grade II Listed with Non Designated Heritage Assets and located within the Plymouth Hoe Conservation Area.
Following the completion of targeted structural investigations by High–Tech Services, it was determined that a significant structural intervention was required to prevent collapse of the roofs and walkways. High–tech Services prepared the Heritage Significance Assessment in accordance with BS7913:2013, Design Proposals and Specification for the conservation and repair of the structures and building fabric, which included the Heritage Impact Assessments and subsequently listed building consent. High–Tech Services undertook the Project and Construction Management, Project Engineer and Principal Designer Roles which included site supervision to completion of the work on site. Refer website: www.high-techservices.co.uk
Replacement of the Pineapple Finials, Charles Church Monument, Plymouth on behalf of Plymouth City Council
Charles Church Monument was constructed in the Gothic Revival style in 1641, is Grade I Listed and located within Charles Cross Roundabout. The church was bombed in the Blitz and was partially restored in 1952.
The original pineapples were of hollow hand carved Bath Stone mounted on the four corners of the Bell Tower. High – Tech Services completed the first Quadrennial Inspection which included a rope access survey of the tower and identified the very poor and unstable condition of the Pineapples. Consultation took place with Historic England and after all other options were explored it was decided to replace them with identical replicas. All approvals were obtained and digital scans were recorded of the original pineapples in situation which allowed a clay maquette to be formed that was to be the basis carved Bath Stone replacements. This was a very complex project and High – Tech Services was responsible for all aspects of the work from conception to completion on site. Refer website: www.high-techservices.co.uk
Conservation and Repair of the Portland Stone Tracery, Turrets of the Great Hall, Plymouth Guildhall on behalf of Plymouth City Council
The Great Hall was constructed in the Northern French Gothic Style in 1870 and is Grade II Listed.
High – Tech Services completed the first Quadrennial Inspection and Professional Structural Appraisal in 2017 which revealed that the Portland Stone Bar Tracery was severely eroded. Analysis of the stone confirmed that the advanced decay was due to Alveolar Weathering which is differential weathering of small pockets of stone, formed by salt crystallisation that subsequently enlarge to form large cavities and honeycombing. This type of erosion is associated with areas of high wind turbulence. High –tech Services prepared the Heritage Significance Assessment in accordance with BS7913:2013, Design Proposals and Specification for the conservation and repair of the tracery which included stone inserts and lime shelter coat consolidation. High – Tech Services also completed the Heritage Impact Assessments and subsequently listed building application. High –Tech Services undertook the Project and Construction Management, Project Engineer and Principal Designer Roles which included site supervision to completion of the work on site. Refer website: www.high-techservices.co.uk
Name: Peter John Grills BSc(Hons), MSc, PDD (Historic Building Conservation and Repair), MRICS, MICE, FCIOB, FCABE, IHBC
Job title: Managing Director and Principal Consultant
Historic Building conservation YES
Conservation planning YES
Architectural design and new build in historic areas YES
Historical research YES
Historic area assessments YES
Project Management YES
Professional Structural Investigation and Assessment of Historic Buildings and Structures including bridges. Specialist Investigations
© HESPR: Historic Environment Service Providers Recognition is managed by IHBC Enterprises, which supports the work of the IHBC