What we do

Structural Design
Structural Design

With you from the planning stages, investigating problems, identifying conditions and designing structures that deliver your design vision right through to construction. Designing excellent building structures, without stretching your budget.

BDI has extensive experience in the design of swimming pool structures including reinforced concrete, stainless steel frame and perspex pools.

Working closely with swimming pool contractors we have been involved in designing all types of pools for Residential, Commercial, Health & Leisure clients across the UK.

Read more
Civil Design
Civil Design

At BDI, our team of qualified Structural & Civil Engineers provide you with the best sustainable and practical design solutions. We have extensive experience designing surface water drainage, SUDs and producing drainage strategy reports for planning purposes.

We can procure required investigations and surveys to determine defects in existing networks or for designing new SUDs systems.

Read more
Structural Surveys
Structural Surveys

We have over 50 years combined experience inspecting and diagnosing defects within building structures. We offer both Specific Defect Surveys and General Structural Inspections. Qualified and experienced Structural Engineers provide detailed, concise and easy to understand reports, providing clear advice, opinion and support on the findings.

Whether you require a survey for planning, purchase or insurance requirements, on a residential, commercial, industrial or historical building our team can help you choose the correct survey.

Read more
Temporary Works
Temporary Works

A temporary works design supports the structure during construction until it becomes self-supporting or incorporated in the final build and is a vital part of health & safety and construction planning. BDI provides a range of temporary works solutions including, temporary works designs, excavation plans, crane/piling mat bases and temporary works 3rd party design checks.

Read more
Insurance Claims
Insurance Claims
BDI are experienced with all aspects of the Insurance Claims process and act as professional advisors for both building Insurers, Loss Adjustors and building owners. Providing knowledge and advice on the implications of an insured event affecting a building structure such as fire, flood, impact damage and subsidence.
Our services include:

  •  Surveys 
  • Technical Advice 
  • Diagnosis of the cause and extent of the damage
  • Method of repair of the damage 
  • Prepare schedules of work 
  • Obtaining competitive tenders 
  • Providing post-tender contract administration including inspecting and certifying the completion of repairs on site. 
Read more

“Having worked with BDI for nearly 10 years we have collaborated together on a multitude of projects and have always found them courteous, professional, imaginative and proactive… one of the best!”

Managing Director, Architectural Company

“I have happily worked with BDI for over 6 years now on new build and restoration projects. I cannot fault the way Nick and the team at BDI work. I have always found their drawings clear and easy to follow which makes working with them a straightforward and effortless process.”

Property Development Company

“The BDI team are on hand throughout every stage of a building project being extremely reactive to requests for information or enquiries.  They use innovative and cost-effective solutions and have a fastidious attention to detail.  Furthermore, their style and approach to explaining structures is enlightening as they help us solve the technical obstacles ahead.”

Commercial Property Development Company

“BDI provide a fast, concise and excellent structural service and I have no hesitation recommending them. Their fees are competitive and the staff very easy to deal with.”


“Full Structural Surveys provided by BDI are very comprehensive. We recommend our clients to have a BDI Survey in addition to a separate lenders valuation which together gives clients a complete Structural Survey for the cost of a Homebuyers report, meaning we can progress matters for our clients cost-effectively and quickly. I would readily recommend BDI’s services in the future.”

Mortgage Broker

“BDI provide a first-class service, they turnaround jobs quickly so that we can respond to building regulation queries and therefore help to keep our projects moving and in turn customers happy. I’ve worked with BDI over the last couple of years and can say that their work is always of a high standard and delivered in a professional manner.”

Building Surveyors

“BDI provided advice throughout my insurance claim and reviewed a further structural problem. Their reports and advice enabled me to negotiate a more extensive claim with further repairs being undertaken by my insurers; repairs that the insurers had previously declined to cover. I was very happy with the valuable service I received from BDI and the high level of professional advice they provided.”


“BDI Structural Solutions respond quickly to our needs, providing competitive quotations and practical design ideas and calculations. This means that we can respond to our customers in a timely manner and keep projects moving. I would readily recommend BDI’s services in the future.”

Building Contractor

“We’ve worked with BDI for over 7 years on a range of large-scale, historical and complicated projects. We can talk issues through with BDI’s Engineers and they help us understand the structural issues and work out the best approach to achieve our objectives. Importantly, the BDI team have always been able to balance practicalities and desired outcomes, which is particularly important when we’re dealing with sensitive and complex issues associated with heritage buildings.”

Heritage Buildings Consultancy

What we’re up to

Luxury Home

Luxury Home

A new replacement residential “superhome” that comprises approx. 600m2 living accommodation, a detached garage and a large leisure suite with swimming pool. The structure is formed of hybrid structural forms and materials that comprise of load bearing RC basement walls, masonry, precast floors, glulam timber portals and steel frames. A new below ground drainage network was designed and installed on the site to comply with drainage planning requirements. This includes flow restriction, below ground storage tanks, and local pumps to resolve issues with levels at connection to the public sewer. Read more


Intriguing new dwelling formed almost entirely subterranean and designed to make minimal visual impact above ground, comprising only a car lift and access entrance within a modern sleek structure. The sub structure was formed of permanent sheet piled walls set almost circular on plan, with a capping beam designed to ensure stability of the retaining walls in both the temporary and permanent conditions. A series of temporary structural props were designed in the temporary condition to allow the embedded basement walls to be designed as economically as possible whilst ensuring the capping beam could be formed safely.  Complex analysis was undertaken to verify the temporary and permanent conditions were stable. The structure was formed in steel frame and cast in-situ concrete slabs, designed to accommodate the green roof which disappears within the landscape. Read more
Adlington Business Park

Adlington Business Park

New light industrial units on a greenfield site within the existing business park for a developer on a difficult site adjacent to a railway and with an ordinary watercourse passing through the site.  BDI designed the steel portal frames and foundations for the two new industrial units as well as retaining walls along a boundary, below ground drainage and hard works serving the site.  BDI also designed a diversion for the watercourse as part of the development to ensure that the new development could encompass the full useable area of site. Read more


New build “super home” dwelling in a rural location. Hybrid superstructure that comprises of load bearing masonry, steel frames, precast concrete floors and cut timber roof. New drainage system onsite incorporating SuDs features, such as permeable paving and soakaways. Read more

Why Choose BDI...

BDI are a Northwest based, structural and civil engineering consultancy specialising in residential, commercial and industrial buildings.

Clients choose BDI for these three things:

  • Commercially Aware
  • Technical & Practical Expertise
  • Pro-active & Timely Service

We believe in the service we provide and continuously strive to deliver quality. From instruction, each project is assigned a Project Engineer who is responsible for the delivery of the project and proactively provides updates throughout. Rigorous in-house checking procedures ensure each calculation, drawing and report is materially checked by a second engineer before undergoing a high-level design review by another senior engineer prior to being issued.

Clients come back to us because we are good at what we do.

The Lawn Club-155
CTA images-04
CTA images-03