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Structural Engineer in Croydon

Quality design and hassle-free services

GL Design Services for residential layout alterations

We are consulting structural engineers in Croydon with over 14 years of design experience amassed on diverse projects including residential conversions, new builds and temporary works of varying size and complexity. We pride ourselves in providing high quality structural engineering services and solutions, helping our clients to complete their schemes on time and within budget. Our practice is fully insured with all engineers being chartered and registered members of Engineering Council and the Institute of Civil Engineers.

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Structural calculations

House extensions

We have undertaken many bespoke home extension projects, ranging from a single-storey kitchen add-on to complex multi-level and multi-sided configurations. Our scope of services for those kind of projects involved removing load bearing walls, steel beam design, lintel design, foundations design and many more project specific items related to site constraints and location.

Wall removal

Property refurbishments have always been the core of our services. Need advice on a load bearing wall removal, RSJ calculations, steel beam for chimney breast support, lintel design above opening or find out about cost of an inspection. Call us today for a non-obligatory cost estimation for structural calculations or other structural engineering services.

Loft conversions

We have gathered a sound expertise in designing a great variety of roof conversions, creating additional habitable space to free up a busy household. Our services entailed specifying layout of steels for loft conversion, location and size of timber beams and trimming around openings. Contact us to find out more about loft conversion in Croydon.

Temporary works

Having worked with one of the biggest demolition contractors gave us a solid understanding of temporary works design for residential conversion projects. We can offer structural engineering consultancy services in designing temporary propping, needling beams, general works sequence above and below ground.


Structural design projects

We develop comprehensive and detailed drawing output to ensure there are no issues on site as construction is the most expensive and labour intensive phase of each project. Therefore, information transparency and presentation have always been at the forefront of our work ethos – please take a look through some examples of our work.

Extension plans

Alteration plans

Loft plans

New build plans

Temporary works design


Client testimonials

We strive to deliver the best service and project experience for our clients. Do not take our word for it, see what our satisfied clients say:

Gregory was knowledgeable, thorough and professional in his approach to the site visit he conducted... for us at our home. He undertook structural checks and identified if walls were load bearing before we look to remove them for a reconfiguration project of our adjoining bathroom and back bedroom. We totally recommend his more
Ricardo CardosoRicardo Cardoso
16:24 22 Nov 23
Needed an urgent report to assist with the completion of my remortgage. As this was time sensitive,... Gregory did his upmost to fit this in and attended the property within a few days of initial communication. Even more impressive was the fact that he produced the report within 24hrs. Highly recommend GL Design Services for all building engineering more
Lee MccarthyLee Mccarthy
19:14 15 Sep 23
We had a relatively small modification we wanted to make to our property and had a great experience... with GL Design Services. Gregory was very responsive, informative and delivered the design documents very quickly - I also learned a lot about my house as an added bonus. I will definitely be using GL Design Services for any future more
15:09 18 Aug 23
We used GL Design Services and worked with Gregory, who was efficient, gave detailed structual... analysis and reccomendations for the builders. He was very thorough and clear and transparent with pricing and akso fair as the job ended up being very straightforward so he charged less than the original quote. I found Gregory to be expert, honest and trustworthy. I would strongly recommend his services as a safe pair of more
aneta viotaneta viot
18:31 31 May 23
Excellent service provided by Greg who was patient and very responsive in explaining the design... technicalities to us. Design documentation for a two-storey side extension was clear and easy to follow by our appointed builder – once again a big thank more
Leszek JamborLeszek Jambor
19:54 28 May 23
We needed to remove two load bearing walls in our house to create an open-plan kitchen. Gregory was... very helpful from start to finish and promptly delivered support drawing and calculations for our contractor. Thank you for your help at such a short noticeread more
A great service from the initial call through to delivery of drawings and calculations.Highly... recommended!read more
Craig SmithCraig Smith
18:35 26 Apr 23
Really helpful and informative. Very responsive and did a site visit very quickly. We will be using... Gregory for any future design going forward (subject to purchase of property). Thank you, would recommend. more
Lorna TaylorLorna Taylor
21:22 17 Oct 22
I would not hesitate to recommend the services of GL Design.Gregory's attendance was punctual. He... had a very polite, friendly manner. Very informative about the project I wish to undertake (removal of chimney breast). His response time to emails was excellent and I did not have to wait long for his report and structural calculations to come through. Many thanks more
Predrag CvijeticPredrag Cvijetic
13:41 06 Sep 22
Very knowledgeable, thorough and approchable professional who helped me out with structural design... part for loft conversion and a single-storey rear extension project. Great drawings and calculation output so no issues obtaining approval from Building Control and on-site executionread more
Aga KosinskaAga Kosinska
19:44 05 Sep 22
Very professional and reliable service. GL Design Services efficiently accommodated different... requirements and expectations at the last more
Richard KensettRichard Kensett
13:05 12 Nov 21
I found GL Design online, as a company that was local to me that would support the structural... designs for our renovation project. With this being our first renovation, I don't mind admitting that I didn't really know what I was doing. As I talked Gregory through what we wanted, he was patient and knowledgeble and made me confident he knew what was needed, whilst providing us with helpful alternative options with the value of his experience. Their price was fair too. I'd have no hesitation in recommending GL more
Ross AllinsonRoss Allinson
12:25 13 Oct 21
We had some concerns about some structural elements of our home and asked GL Design Services to... complete a review to let us know whether any work was needed to bring them up to scratch. Gregory was excellent from start to finish, he was very knowledgable and took time to explain things to us and present the different options for correcting them. He also drew up very detailed plans within a reasonably short timeframe so we could start approaching builders. Even though their quote was not the cheapest we would have no hesitation in recommending GL Design Services, they're worth every more
Henry THenry T
21:05 14 Apr 21
RE: House extension in Coulsdon, single and double storey.Gregory has been an exemplar structural... engineer. His quotation was not the cheapest but reasonable. From speaking to Gregory, I feel that he is knowledgeable and understands my needs. Once instructed, Gregory visited the site and took details necessary for his work. He worked effectively and was able to produce the calculations and specs required for the work in a timely manner.I would not hesitate to engage Gregory for further work in the future. If you are in London and the South East, do not hesitate use GL Design Services for your structural more