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Building blocks
(98)
Building blocks for structural and non-structural masonry in commercial, industrial and residential projects. Dense and lightweight concrete blocks, aerated blocks, hollow and solid units, foundation and coursing blocks, blockwork systems. Facing and fair-faced options. Used for walls and partitions, loadbearing, fire and acoustic performance, and thermal efficiency.
Building blocks - helping you find the best solution for your project.

Celcon Plus Blocks for walls and foundations
Celcon Plus Blocks are an alternative to the 440 x 215mm face format block and are suitable for the same applications. The Plus range is produced using the latest manufacturing technology, ranking them amongst the most dimensionally accurate blocks available. This makes them ideal for use with H+H's thin-joint system
Solar Grade - aircrete thermal walling blocks
Celcon Solar Grade blocks for walls are principally used where enhanced thermal performance is required. They are identified by the distinctive painted blue line. With a superior thermal conductivity Solar Grade blocks are suitably load-bearing for 2-storey buildings and can be used below DPC. Thicknesses from 100 to 215mm
Celcon Block High Strength and Super Strength Grade
H+H’s Celcon Blocks High Strength Grade are ideal where higher compressive strengths are required such as in the foundations and lower storeys of three storey buildings, piers under high vertical loads and in multi-storey buildings: available in thicknesses from 100mm to 355mm; high Strength (7.3N/mm2 – identified with a black stripe on the
Celcon High Strength Grade - dense aircrete blocks for loadbearing walls
Celcon High Strength Grade blocks are made from aircrete and designed for use where higher compressive strength is needed, such as in multi-storey buildings and foundations. Key features include a compressive strength of 7.3N/mm², thermal conductivity of 0.18 W/mK, and density of 730kg/m³. Available in widths from 100 to 355mm
Celcon Foundation Blocks - for walls and foundations
Celcon Foundation Blocks can be used to support 3-storey buildings and are suitable for supporting solid or cavity walls, framed constructions or suspended floors, including the H+H Beam and Block system. Available in Standard Grade (3.6N/mm2) and High Strength Grade (7.3N/mm2). The blocks can reduce heat loss from ground floors
Jumbo Bloks - aircrete building blocks for fast wall construction
H+H Jumbo Bloks are large-format aircrete blocks designed for use in thin layer construction to enhance build speed on site. As few as 6.3 blocks are required to complete 1m² of walling: large-format blocks reduce the number of units required per square metre; compatible with thin layer construction for faster build times; multiple compressive
Celcon Standard Grade aircrete blocks for floors and walls
Celcon Standard Grade aircrete is extremely versatile and can be used below DPC as infill for beam and block flooring systems, as well as above the ground in the walling applications listed. Celcon Standard Grade blocks are BBA certified and available in 75-215mm thicknesses. Due to its all-round performance, it is possible for 100mm Standard
Celcon coursing units - small aircrete blocks for wall construction
Celcon coursing units are made from aircrete and designed for use in both internal and external walls, matching the material and applications of standard Celcon blocks. Suitable for infill above doors and windows, at floor and ceiling levels, and for making up between joists. Not intended as the sole masonry unit in load-bearing walls. Available
Precon hollow blocks
Precon blocks are dense, lightweight and precision-made. They are provided in a range of sizes from 100 to 215mm thick. Specials are available, including quoins, half quoins and cavity closers. Highly versatile, these blocks are suitable for a range of applications, including external walls (above and below damp courses), partitions, separating
Precon - solid concrete building blocks for walls and foundations
Precon blocks are made from concrete at a modernised plant in Coatbridge, Scotland, and are available in standard dense, paint grade and lightweight types. Manufactured in a range of sizes and strengths, these blocks are suitable for structural and non-structural wall construction and flooring, meeting CE quality standards
Badby Park Nursing Home, Daventry: RåBuild construction
Badby Park is a unique facility dedicated to neurological illnesses and disorders, providing specialist nursing and rehabilitation in the vicinity of Northampton. The two-storey development is divided into two wings. The Meadows Wing is a spacious, purpose-designed environment providing 24 specialised nursing care bedrooms with en-suites. Staff
Sawston College, Cambridge: Science Wing construction
Sawston Village College used H+H UK’s Plus Blocks and the thin-joint system for its new science block extension. The extension provides eight new classrooms to develop the college’s specialism in teaching sciences to 11–16 year-olds. The first phase – to create five classrooms over a 700m2 floor-space – was completed within 37 weeks by the
Thin-Joint system used in construction of new houses
H+H approved Thin-Joint contractors, Derrick Bros, chose the Thin-Joint system, defined as a Modern Method of Construction, when constructing two detached houses on a new housing estate in Hawkinge, Kent. Brothers, Darren and Dean Derrick have been advocates of the system since being trained at a local college 20 years ago. It is their preferred
H+H Celcon Blocks futureproof kitchen extension
Celcon Blocks have been used in the construction of an extension to an Edwardian terraced home in Wimbledon. The owners required more indoor space so decided to complete a rear extension to add more space. Built using H+H Celcon Blocks the extension has made the house noticeably warmer and improved the sound insulation. The owners already had
Ribbon Court Care Scheme: single supply solution
Ribbon Court is one of the first schemes in the country specifically designed to meet the new and emerging needs of older people from the area’s diverse communities. The four-storey development comprises 50 one- and two-bedroom apartments for residents with special care needs, where the on-site amenities include consultancy rooms, activity rooms
Building blocks for self-build home in Yorkshire
H+H Celcon Blocks were specified in a self-build home project in Flockton. The property was constructed with the aim of being as thermally efficient as possible. Special attention was paid to detailing of the insulation, thermal bridging and envelope penetrations. Due to planning constraints, the build had to be sensitive to existing adjacent
Parkwood Extra Care Scheme, Telford: supported housing
This 53-unit flagship scheme offers accommodation with the necessary facilities to allow those with support and care requirements to live independently. The building is designed to integrate accessible dwellings, care resources and shared communal facilities in a secure environment, whilst being environmentally friendly. Rising up to four storeys
Thin-Joint system used in housing association new-builds
Sherborne Homes in Cheltenham, specified the Thin-Joint System, provided by H+H, for its housing association build. The homes were to have a bright, modern finish using large floor to ceiling windows. The Thin-Joint System provided the Sherborne Homes contractors with a hassle-free building solution and a great support package that allowed for
Cost-saving, faster build Aircrete system for new homes
Hill Bespoke, which uses cutting edge techniques to provide premium housing solutions. specified the RåBuild method of construction, which uses the H+H Thin-Joint System, on four new build homes in Cambridgeshire. RåBuild, an all-in-one approach to building from H+H UK, takes full advantages of the properties of aircrete to allow for the quick
Thin-joint blocks for Code level 6 homes, Basingstoke
Miller Homes decided to take real customers, as well as its supply chain, on a journey towards Code level 6 on the 3.65 acre site. The company has built five identical Miller Zero houses to different levels of the Code for Sustainable Homes. These homes, which are the same in layout to others on the site of 79 units, have been completed to Code
Thin joint blocks cut build time for homes development
H+H UK’s Thin Joint System was used for internal partition and separating walls for Bermondsey Spa Phase 2 instead of the drylined studwork and gypsum block originally specified, cutting the programme time by an estimated two months and exceeding acoustic and thermal performance requirements
Luxury housebuilder chose H+H aircrete for riverside development
The Riverdale Park development is currently under construction in Doncaster, bringing 139 new houses to the banks of the River Don. Led by Harron Homes, a construction company building luxury homes across the North Midlands and Yorkshire, the project is expected to be completed over the next four years. Built on an old Polypipe factory site, the
Passivhaus-standard home built with aircrete blocks
Architects designing a single bungalow in Norfolk to Passivhaus standards specified H+H’s Celcon Block Standard Grade for the internal leaf and external leaf to the timber boarded elevations on the structure. H+H products were selected due to delivery time, speed of construction, stability and thermal mass. 140m2 of aircrete blocks were supplied
H+H aircrete Jumbo Bloks for affordable housing
This housing development project in Oxfordshire saw the creation of 28 new affordable houses and one three-storey block of flats. The development made use of the Rå Build method of construction throughout. This involved building the entire inner skin of a building including inner leaf, internal and separating walls using H+H aircrete blocks

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