An independent team of building professionals and scientists, H+R specialise in investigating problems in buildings, building materials and building occupancy

Defect Surveys by Expert Building Scientists

An independent team of building professionals and scientists, H+R specialise in investigating problems in buildings, building materials and building occupancy.

Founded in 1966, H+R are the market leaders in Building Pathology and heritage conservation, with particular expertise in damp and decay.

At H+R, we understand the delicate balance between preserving the historic integrity of a building, and finding an economical and practical solution to managing the cause of its deterioration. Our defect surveys provide the detailed information and recommendations clients need to understand the issue, and our building scientists work to offer sustainable solutions that do not rely on damaging interventions or chemical treatments.

The focus of our work is to preserve the original building materials and methods of construction, particularly where there is architectural or historical significance. Wherever possible, we use non-destructive methods to investigate a problem, from piloting drones to employing our trained Rothounds. In cases where sample removal is unavoidable, we take care to use minimally-invasive techniques to limit damage.

The backgrounds of our team members represent a variety of disciplines and skillsets, with special interests in traditional materials, timber identification and strength grading, damp management, heritage and listed property, fungus and insect classification and conservation practices to name a few. We have worked on a diverse range of properties across the country, including Windsor Castle, Brighton Pavilion, and various National Trust sites.

To support the expertise within H+R, we frequently work with a wider network of specialists, academics and laboratories to provide every client with the most accurate and thorough property report. In the long term, our work makes remedial work easier and keeps client costs down by helping them to avoid unnecessary or ineffective solutions.

For experienced, professional assistance with a residential, commercial or heritage property anywhere in the UK or aboard, contact us for more information.

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Read Our Customer Reviews

Project Manager

The scientific investigations by H+R, and their pragmatic advice enabled the defects resulting in damp problems to be dealt with under the terms of the contract, without further recourse to legal action.


Independent investigation and consultancy from H+R allowed remedial works to be carried out with the minimum disruption to occupants, and provided the ‘Guarantees’ needed to maintain the capital value of the properties, and to restore customer confidence.

English Heritage

[H+R are] the experts and EH (English Heritage) listen to what they say.

High-end London Property Developer

H+R provided us with valuable protection for our lease holder’s properties from the difficulties we faced with drainage blockage and overcharge. We now receive ample warning to get our maintenance staff into the areas and to get the problem solved before damage can occur.


H+R investigation and remedial specification allowed the refurbishment of the historic building with the maximum retention of the original structure without specialist remedial sub-contractors. This also allowed us to make savings on QS estimates, and allowed the issuing of NHBC Build-mark Guarantees.

Project Manager

H+R identified the cause of recurrent mould problems, allowing immediate remediation and re-occupancy.

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