Domestic and commercial building services for Cumbria, the Lake District and the North West

In this section of the website you can find out more about our full range of services, from general building and light structural work to commercial building services and traditional Lake District building projects.

Commercial building services – commercial building refurbishment work, commercial restoration projects, commercial renovation work, and specialist services such as bespoke joinery or traditional stone masonry.

Domestic building services – all types of domestic and residential building projects ranging from new build to historic and traditional Lake District buildings. We also have good experience of work on properties for the lettings and holiday rental market.

Historic building services – residential renovations, sympathetic extensions, and barn conversions. We also have strong experience of work on historic and traditional properties that need renovating for the lettings and holiday rental market.

Project and site management services – day-to-day on site running of a construction project; keeping within the timescale and budget of a project; managing any delays or problems encountered on-site during a construction project; managing quality control, and health and safety checks.

Interior design – we can also offer an interior design planning service via our associate designer, who will create mood boards and offer professional advice on your interior finish.

Please also see our projects pages for examples of our recent projects and award winning builds.



  • Low House, residential conversion

    A project to convert two historic cottages into one luxury residence, while maintaining their character and charm, was always going to be a challenge. The addition of a sun room with panoramic views and a large detached garage added to the project’s complexity. However the end result is a home with 21st century luxury, coupled with all the features of a Lakeland Cottage. Well done T.H.I Ltd!
    Roddy Gale, owner Low House

Federation of Master Builders membership

Logo: Federation of Master Builders membershipWe’re proud members of the Federation of Master Builders, and one of only a few membership firms in Cumbria. Their code of Practice sets out the standard practices expected of the best builders in the industry and we always work to meet, if not exceed, them.

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Sovereign Approved Contractor

Logo: Sovereign ContractorWe are Sovereign approved contractors. This means that we are able to carry out damp proofing, tanking, and timber treatment work with insurance backed guarantees to give you extra peace of mind.

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