I had Adam carry out test on my property 2 times. Both times I have had him he's been excellent. He is very knowledgeable and tells you exactly what he's doing and how it works. He offers recommendati... See more
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I would highly recommend JosTec. Always professional, they showed flexibility to arrange the appointment at the time it suited me. They were super efficient and friendly.
Very smooth, clear and reactive. We used JosTec from recommendation and the quote was very fast & thorough (it included items we didn't end up needing so there were no hidden costs: just pleasant surp... See more
We needed a single company who could do all the Acoustic tests and Water calculations reports etc. required for Building Regulations and are very pleased to use RJ Acoustics as our single partner to... See more
Company details
Written by the company
JosTec (formerly RJ Acoustics) are experts in numerous Building Regulations Compliance Services. We offer sound insulation testing for Building Regulations Part E, air tightness tests, SAP calculations, SBEM calculations and EPCs for Building Regulations Part L1, ventilation testing and commissioning for Building Regulations Part F, water efficiency calculations for Building Regulations Part G, and all types of noise assessments and surveys. We also offer consultation services, giving you the best chance of passing your testing first time.
Contact info
JosTec, Suite 107 Moda Business Centre, Stirling Way, WD6 2BW, Borehamwood, United Kingdom
- 01923 518 923
- info@jostec.co.uk
- jostec.co.uk
As always fantastic service this time…
As always fantastic service this time was for water calculation

Reply from JosTec
Will be working with Jostec again
The second time we've used Jostec. Very happy with the service and communication before and after the survey. We will be working with them again

Reply from JosTec
Toby was on time and kept me informed
Toby was on time and kept me informed. Professional service

Reply from JosTec
Very punctual.friendly and able to discuss issues amicably.
Very punctual.friendly and able to discuss any issues amicably.

Reply from JosTec
Very friendly
Very friendly, diligent and efficient work, clean site manners. Highly recommend -
Ricky Sekhon
Ashville

Reply from JosTec
Very happy with our acoustic testing
Very happy with our acoustic testing. Toby was very professional with a lovely manner and explained the process clearly.

Reply from JosTec
Next day certificate……..…
Toby rang before coming as promised turned up on time (actually before time by agreement) he carried out the test and promised a quick turnaround once the invoice was paid. I’m about to pay now. Let’s hope the promise is kept.
A wonderful service very thorough no stone left unturned!!

Reply from JosTec
Great job by Toby
Great job by Toby. He came and did an amazing job with my sound test. The professionalism and friendliness was second to none. This is very consistent with my experience with Jostec so far. Great team and company to work with!

Reply from JosTec
Jostec were flexible to our…
Jostec were flexible to our requirements for test dates and always willing and able to help. On the test day they were patient on site and allowed adjustments to be made which could benefit the test result.
Good service and nice team to work with.

Reply from JosTec
Alex @ VPG
Having used various Energy assesors over my career, Jostec provided a service over and above my expectations. A special mention to Jon, who provided a fantastic service.
Highly recommended and look forward to working together in the future.

Reply from JosTec
Professional
Professional, knowledgeable and very helpful. Pleasure to work with.

Reply from JosTec
Very professional
Quick, smooth, professional at reasonable price
Thanks to Rob and his professional team
Very appreciate
Robert R.

Reply from JosTec

Reply from JosTec
Professionals who know what they are doing
Chris was very helpful and well experienced. He helped us throughout the test and provided instructions to improve the air quality of the new build. We've booked them for the next block also.

Reply from JosTec
Excellent service
Excellent service, reliable and prompt and very helpful. When I made the initial enquiry, they phoned me back within an hour. They are a pleasure to deal with.

Reply from JosTec
First Class Service
Very helpful and professional. Did a great job testing our MVHR unit - would highly recommend.
Incredibly Helpful Company
Jon & his team have been incredibly helpful
I needed guidance with regards to internal amendments made within my property. Nothing was too much trouble and my emails and calls were answered immediately
Thank you all for your advice and support
Definitely will recommend you
Regards Penny Clarke

Reply from JosTec
Flanking sound transmission.
Great team! We needed some help with sound transmission through block work and they solved it! Thank you Robert and Joe

Reply from JosTec
Professional and speedy service!
We just wanted to say thank you to Jon for helping us sort an issue that needed solving urgently re the u-value calculations to insulate part of our extension walls. Jon provided us with a solution quickly and simply, explaining to us along the way the technical aspects in understandable terms. Thanks again to Jon and Jostec!

Reply from JosTec
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