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Our Services

What we do

We provide all manner of Structural Engineering Services by Chartered Engineering professionals.

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We provide comprehensive structural engineering surveys, designs and calculations for your refurbishment and extensions to the requirements of Building Regulations.

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We are based in St Albans and  our primary service area is Hertfordshire and surrounding regions.

Refurbishment

We specialise in the refurbishment and conservation of all buildings, from small domestic projects to larger commercial commissions.

 

We are experienced with the intricacies of older style and heritage buildings and the common issues associated with them when refurbishing and extending them to suit your requirements.

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Loft conversions
Condition Survey.JPG

Conservation

We understand how old buildings work, and we will advise you on the best approach to maintain and improve your property, for example advising on methods of repairs of cracks or insulating and draught proofing your home. Our approach and methodology can lead to longer term savings by preventing problems that can manifest and potentially increase the long-term value of your property.

Extensions and Internal Alterations

We collaborate with a trusted network of award-winning architects, designers, and builders specialising in home extensions and interior  internal alterations.

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We have an strong relationship with local authority and private building control bodies and our designs always fully comply with the latest requirements of the Building Regulations.

Drone Surveys

We use drones to carry out roof surveys where there have been indications of defective roofs or gutters that have caused water ingress. Our drones are able to take 4k resolution photographs and videos to help pinpoint issues where access via a ladder or scaffold is not possible. For your piece of mind, we are fully insured and CAA registered drone pilots.

Structural Surveys and Reports

Our team provides both specific and general structural surveys that are suitable for insurance and house purchasing purposes. We also offer expert advice on next steps, including mitigation or intervention, and can recommend trusted tradespeople who we work with regularly. 

Our Approach

Structural modelling

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Chartered Professionals

We are a small team of chartered engineering professionals who are experienced in producing high quality, economical engineering designs and solutions.

 

You will always be looked after by our director from your first enquiry to project completion.

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Advanced Software and Tools

We use a range of engineering software to produce our designs.  For more complex projects, we have invested in using advanced finite element modelling to streamline designs, which provides a lean and elegant design, and invariably saves the client money in overall construction costs. 

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Materials

For the majority of our projects, we specify building materials that can be sourced by local builder's merchants and work with materials that are accepted with the majority of building insurance providers and the local authority building control. We also work with "modern" forms of construction including glulam or mass timber, where there is a particular client need or project benefit.

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Contact Us

Censeo House

6 St Peters Street

St Albans

AL1 3LF

Copyright © 2025 Thirteen Structures is a trading name of Thirteen Consulting Limited. Registered in England and Wales, no. 13864374. All Rights Reserved.

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