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Working with architects, surveyors, builders, developers and home owners for both residential and commercial construction


COVID-19 Update

We just wanted to quickly touch base amidst the ongoing coronavirus epidemic to let you know that we will be operating as normal.

Several of Calcs-Online’s staff already had the capability to work from home, and we have now extended this to our whole team. In addition, since our phone system is internet-operated, this means that most of our staff are available on their extensions and can take calls as normal.

If you experience any difficulty getting through to us please drop us an email to and we will seek to put this right for you as soon as possible.

Still going strong…

Calcs-Online (PorthouseDean) will be celebrating our 8th Birthday at the end of May!

Congratulations and thanks to all of our staff, and everyone who has helped us become the organsiation we are today.

Who would have known all those years ago, operating from the dining room of a house in Weybridge (with only a laptop and Moonie “the office cat” for company) we’d be here today with over 5000 projects under our belts!

Head Office Move

It’s been our busiest year yet!

2016 has been an incredibly busy year for PorthouseDean. We’ve had new team members join us in both of the Manchester and Gloucester offices.

Back in 2012 PorthouseDean HQ moved into a little office in Holcombe Brook, Bury – fast forward four years the company has outgrown that office. With the current growth in business, it felt like the right time to fly the Holcombe Brook nest. We’re now flying high with the hustle and bustle of a new, swanky City Centre office in Manchester. Our new head office is now based on King Street, 16-18 King Street, Manchester, M2 6AG.

PorthouseDean Structural Engineers | Move to Manchester

Christmas Closure

Although we would love to keep serving all of you budding Property Developers, Home Owners, Architects and Builders over Christmas, PorthouseDean need a little break to sip on sherry and help eat all of the mince pies so the office will be closed from the 23rd December 2016 – 3rd January 2017.

We look forward to a prosperous and happy new year and PorthouseDean wish you all the best too!

Happy Christmas and Happy New Year!

300% growth in 2013

PorthouseDean Limited have a achieved approximately 300% growth on the previous calendar year, taking care of over 350 individual jobs in the process.

PorthouseDean are committed to sustaining low prices for our customers and ensuring that our product is one of the best of its kind in the market place. Our aim is to sustain this growth as much as possible going into 2014 and beyond.

From all at PorthouseDean we wish you a happy and prosperous 2014!

Supermarket Job Win

PorthouseDean are delighted to announce that we have been instructed to undertake structural engineering consultancy work for enabling works at a new supermarket under construction in the North West.

This underscores PorthouseDean’s growing reputation as a provider of quality engineering consultancy services across the nation.

200 Jobs for 2013

PorthouseDean are proud to announce that we have recently undertaken our 200th job of 2013 – comfortably passing our 116 job total for June to December last year. This equates to a roughly 200% growth on the last six months of 2012.