Neville Nash
Zibcrest Homes, Director

I have been dealing with JosTec for about 4 years, a really good firm who actually carried out what they promise. Always good to take advice from them from the outset, so that when you come to your final results there won’t be any surprises. A dynamic firm which really satisfied the needs of the building industry, very resourceful and informative and good value, friendly and easy to get on with, and who will go the extra mile for you. I have used them on all my sites.

Dean Chinsky
Taylor Wimpey, Site Manager

JosTec have been very professional and helpful in the air permeability and sound insulation testing for the 179 plots I have just completed. They have been very obliging in advising on the best way to achieve the results we required for this site. With the fast issue of certification when required, I would certainly use and recommend JosTec for future work

Pleasure to work with.

Jonathan Ellis
Hamilton Court Developments, MD

Thanks so much for getting everything over to me so quickly. I just wanted to express my thanks for your attitude and professionalism. We’ve had struggles with other testing companies in the past, but your efficiency and knowledge is really refreshing. We won’t look anywhere else for sound, air, and ventilation testing in the future.

Costa Pires
Technical Manager

JosTec have provided a very good service for our project at Hammersmith in respect to the air permeability and sound insulation testing for the 165 apartments we have almost completed. They have supported and advised us to the best of their knowledge, how we could achieve the results we required for this site. The respective certificates and reports were issued very quickly as required. It has been a pleasure to work with JosTec and would certainly recommend them for future work.

Adam Gee
Construct ID & Homes ID, Managing Director

We have used JosTec services on all of our projects for the last few years. Not only have we never had any problems, but we always find that they go over and above what is expected of them. I’d recommend them to anyone building new homes.

Luke Kirton
Design Doctor, Design Director

Thank you so much. Your guy was really nice. I spend my life-fighting bureaucracy and misinterpretation, it is always a breath of fresh air to find a company who genuinely wants to help. I will call you guys in a bit earlier next time.

Rob Graham
Cube Construction, Managing Director

I have used JosTec regularly over the past few years and they have gone the extra mile to provide us with an excellent service with both Acoustic and Air consultancy/testing.
On all new build schemes we are now required to exceed Building Control Requirements by achieving results in excess of 5dB to satisfy Code For Sustainable Homes and planning/S106 requirements.
As a result they are involved from the very earliest design stage meetings to the last minute client led changes that require their input. The level of flexibility, availability and accountability they offer is exceptional and I could not recommend them strongly enough.

Christine Kings
Outer Temple Chambers, Director

Hello. I telephoned your contact number about an hour ago. The phone was answered quickly and in a few minutes I received some very helpful advice which I can now act on. It was refreshing to have such a professional response – and it was free!
I’d like you to know that if our current issues do not get resolved we will come back to you to see if you can help. I thought your good customer service should be acknowledged.

Benedict Pippet
Doveberry Limited, Director

JosTec have consulted on many projects over the past year for Doveberry. Their expertise has been greatly received,  pre testing and design consulting on both conversion and new build projects.
I can highly recommend JosTec services.

Michael Paterson
Paterson Wood Ltd, Director

We regularly use JosTec for all of our sound testing and have always been pleased with the service they provide. They are easy to communicate with, flexible with booking in dates and responsive to requests for reports at short notice. We will certainly continue to use them and can highly recommend their services!

Michael Wallis
Project Management & Surveying Services Ltd, Director

I have now used JosTec on several occasions and they have always provided a fast and efficient service and been very professional. Because they offer so many services, I am always happy to recommend them on my projects.

Tejash Patel
Sterling Rose Developments LTD, Director

We have been using JosTec for a number of years. They are always our first point of contact for the various tests they conduct, including sound testing, air tightness and vent testing.
I find the service to be very professional, and very accommodating to desired timeframes. The advice provided even at pre-development stage is now a very important part of our development process.

Mark O’Halloran
Atelier Developments, Managing Director

Atelier Developments have used JosTec on numerous projects in the past and we would not hesitate to recommend their services elsewhere.
We would like to commend the company on the level of service they provide and will continue to use them in the future.

Troy Hunter
Harmonix Construction Ltd, Director

I would like to thank you for your assistance on the Beavor Lane Project for BSC where in addition to the commissioning and validation you were proactive in identifying and overcoming issues found on site.

Wesley Gullin
Thrive Homes Neighbourhood Officer

Very happy with the level of service received.
I strongly recommend this company.

Prakash Tanna
Tanna Construction, Director

Very quick turn around. I will be keeping JosTec’ number for future developments and passing on the same to other developers I work closely with.

Mariusz Gawecki
GBG Building Services Limited, Managing Director

I really liked JosTec’ approach and can do attitude. I will definitely recommend them for other projects

Peter Garratt
Quaker Meeting, House Owner

We are very grateful to JosTec for coming so promptly to give advice and for their clear comments

Shaz Amin
Mapesbury Limited, Director

Amazing service, thank you.

Colin Ogdon

Thanks for the out of hours reply, it’s really appreciated! I can pass this info on to my builder and get moving… Also I just want to express how impressed I am by your service, it’s not been common to find that level of care since I got to London, so thank you very much!

Daniel Everitt

Very quick service. Great communications with knowledgeable staff. They made the whole process very straight forward. Thank you.

Helen Dennis

our worker Szabi was fantastic. Very knowledgeable and professional. He gave specific helpful advice on reducing air/heat leaks which enabled us to bring our self build up to building regulations standards for this air test. Following this advice our home is now much better insulated, so our bills will be less. Well worth doing. Thank you.

Conrad Davies

A very approachable, professional service.

Amina Singh

Thank you for the quick response and please also thank Will and Robert for being very helpful sorting everything out, especially answering calls and texts while I am abroad.The staff who did the tests were also great, will recommend your company anytime.
Once again thanks to you all, a great team.

Hugh Gilbert

Thank you for sending Dan along. I just wanted to say how good he was – sensitive to the house, it’s decorations and artworks, as well as polite and helpful


It’s the first time I’ve required guidance with sound insulation on a construction project and the service from JosTec has been exceptional, promptly responding with clear advice on any questions I’ve faced. Without question, I’d recommend their services.

Karamveer Singh

It was a pleasure dealing with JosTec. Assistance provided by Adam and the team was professional, efficient, and reasonably priced. I’ll revisit for my next project!!

James Hubble

JosTec are a lovely, very, very helpful company to deal with. Their engineers are very patient in explaining what they do & the results of the test’s to a novice like me! I have a rental flat in North Watford, Hertfordshire that required a airborne noise test. The flat failed it’s test, but Robert and Carlos were so very helpful in looking at the problem & coming up with a solution, especially as the top floor flat is occupied & so I could not take the easy route & have work done there. Robert came up with the materials/insulation required that we could do to the ground floor flat’s ceiling & yesterday the flat passed it’s retest with flying colours! I can hearty recommend JosTec, they give a five star service!

Freddie Kit
Berkeley Group

The engineer you sent was very polite, he followed the procedures and completed the works in a timely and safe manner.