PorthouseDean Structural Engineers Reviews 

86
TrustScore 4.5 out of 5

4.6

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Rated 5 out of 5 stars

I was referred to them by the building control designers. I found them responsive and helpful. The engineering came through quickly for building control and as I needed them to get contractors quotes... See more

Rated 4 out of 5 stars

After confusing plans my designer got in contact and went out her way to help get the issues solved. Myself and my builder were happy in the end with the service.

Rated 5 out of 5 stars

I used PorthouseDean for my structural calculations on a large house extension I was doing. The internal structural walls changed at least 3 times and Saleh (The engineer assigned to me) was very acco... See more

Rated 5 out of 5 stars

I run The Building Guidance Partnership - helping homeowners manage their home projects. For my own home I used Chris Porthouse and his amazing team. It was a major project ... approximate... See more

Company details

  1. Structural engineer

Written by the company

PorthouseDean Limited, founded in 2012, specialises in the production of structural calculations and detailed drawings to fulfil building regulations requirements. We specialise in low-rise residential developments – from extensions and loft conversions to complete new-build developments. We provide services to home-owners, architects, builders and developers across the country – using the architectural plans provided by the client to produce our information.


Contact info

4.6

Excellent

TrustScore 4.5 out of 5

86 reviews

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4.6

All reviews

(86)

21 reviews in the last 12 months

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Rated 4 out of 5 stars

Helped me when needed

After confusing plans my designer got in contact and went out her way to help get the issues solved. Myself and my builder were happy in the end with the service.

8 May 2026
Rated 3 out of 5 stars

Initially the service was good but when…

Initially the service was good but when we asked a question that was supposed to be part of service - well I am still waiting for an answer….maybe my review will have to be revised!!!

4 May 2026
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Reply from PorthouseDean Structural Engineers

Hi Joanna, I think you were waiting for one of our free document changes to come through. I undertand that was delievred for you. Was everything okay in the end?

Rated 5 out of 5 stars

Really good engineers

Really good engineers. Ive used Porthousedean engineers for many of our clients and my personal project. I find there pricing fair to reflect the quality work that has been produced. Definitely recommend and i do recommend them.

28 May 2025
Rated 2 out of 5 stars

Dealing with PorthouseDean has been…

[Edit following response from PorthouseDean: I appreciate the follow up from Sam. I understand their process as described, but it was made clear in our initial consultation that we were going to get the information before proceeding so none of that applies in this case. They should (and still can) have rectified their mistake and completed the drawings/calculations to spec]

Dealing with PorthouseDean has been frustrating. They began work without waiting for all agreed-upon information, then refused to correct their mistake without using the '1 free change' included in the price.

As we're still in the early stages of the project, I wasn't happy at using the free change for this purpose, so they have caveated their work with something like 'This steel beam is not required if a contractor confirms x, y, z' instead of updating the drawings/calculations.

I thought that engaging a structural engineer would mean that our builders wouldn't be the ones making these decisions.

I will update this review if we need to go back to PhD to our free change.

30 October 2025
Unprompted review
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Reply from PorthouseDean Structural Engineers

Hi Matt

Thank you for taking the time to share your feedback, and I’m sorry that your experience so far hasn’t matched your expectations. That’s never what we want for any of our clients.

When we produced the original structural design, we hadn’t yet received confirmation on whether the internal wall was load-bearing, so we designed a steel beam based on the drawings and information available at the time. In many domestic projects, confirming whether a wall is truly load-bearing requires intrusive investigation (for example, stripping back finishes and exposing structure), which is usually carried out by the contractor during the strip-out stage using their tools. Because of this, it’s quite normal industry practice to design cautiously at first and then simplify the design once the contractor has confirmed the actual site conditions.

After our calculations and drawings had been completed and issued to your architect, further site information suggested the wall might in fact be non-load-bearing and that the beam might not be required.

In situations like this, our usual process is to make any revisions through the complimentary “change request” included in the service. To clarify, this doesn’t mean you are limited to only one change overall – it’s one round of revisions, and that round can include multiple updates made at the same time.

To avoid delaying your project while the wall is checked on site, we suggested (by email) that your contractor investigate on site and that your architect add an engineering note to the Building Regulation drawings stating that the beam is not required if site verification confirms the wall is non-load-bearing. This allows work to proceed safely and in line with Building Regulations, while still leaving your complimentary change request available for any final updates once the on-site position is clear.

I’m sorry if this approach and the options weren’t clearly explained and it felt like we were unwilling to revise our work. That was not our intention.

If you’d like to pick this back up, we’d be very happy to help: once on-site checks confirm the wall isn’t load-bearing, we can formally update and reissue the structural drawings and calculations without the beam under your complimentary change request so everything fully reflects the final site conditions.

Please feel free to get in touch with us directly so we can move this forward in the way that works best for you.

Kind regards

Sam Dean

Rated 5 out of 5 stars

Really fast

Really fast. If I have to moan about anything than that I find dealing with the user interface a challenge.

10 November 2025
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Reply from PorthouseDean Structural Engineers

Hi Michael, thanks for the positive feedback. It's great to know our work is appreciated. :)

Ted from our marketing team has been reaching out regarding your user experience to see what we can learn, but hasn't been able to contact you. If you could contact Ted at our head office on 0161 820 3230 to discuss then that would be fantastic. Your comments will be invaluable in helping us improve the interface.

Rated 5 out of 5 stars

The Building Project

We were recommended to use PorthouseDean by our building designer. And the choice was well rewarded. PD went above & beyond our expectations, as they added “Hi-spec” to the specifications, and the project (so far) has been successful.

8 August 2025

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