a leading provider of air leakage testing services

Across a wide range of construction industries

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Welcome to CPS Construction Services

Founded in 2006, CPS is a leading provider of air leakage testing services across a wide range of industries, including construction, educational institutions, and residential developments.

Our advanced testing methodologies and cutting-edge equipment enable us to deliver accurate and actionable results, ensuring that our clients achieve optimal performance and comply with industry standards and regulations.

Our mission is to enable our clients to achieve and maintain air leakage compliance effortlessly.

Services

Air Leakage Testing

Air Leakage Testing

Air testing for Parts L1A, L2A and L2B.

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Thermal Imaging

Thermal Imaging

IR/IRAM Thermographic Surveys & Thermal Imaging for building applications.

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Acoustic Testing

Acoustic Testing

We offer a range of specialized services tailored to your individual needs.

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Air Quality Testing

Air Quality Testing

We offer a range of specialised services tailored to your individual needs.

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Consultancy

Consultancy

Air leakage consultancy from design stage through to final testing.

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Extract Fan Testing

Extract Fan Testing

Specialist extract fan performance testing and certification.

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Testimonials

“Thank your air tightness testing engineer for his very diplomatic approach to the issue causing the fail in front of the various trades. Thanks for the identification of the leakage paths which led to a passâ€

— 05/05/2011 - Stuart Finlay, Watson & Cox. De Soutter Medical Centre, Aylesbury.

“Please pass on our thanks to your air tightness testing engineer who was extremley cooperative and helpful to us on both visits â€

— 05/05/2011 - Mark Lockley, Kier Eastern. Police Investigation Centre, Suffolk.

“Thanks for your air tigthtness testing enginners assistance yesterday to enable getting the building to an air tight level to pass. Could you please pass on my gratitude.â€

— 17/05/2011 - Tim Barrett, Kier Eastern. Factory Warehouse, Essex.

“Thank you for your effort on our air tightness test.â€

— 11/07/2011 - Lee Irving, McLaren. Bus Station, Slough.

“On airtightness test day, CPS work with you, if your not ready they'll help, if your leaking they'll locally smoke test.â€

— 11/07/2011 - Aaron Pearson, Willmott Dixon. Passmores School, Harlow.

“Thanks for your assistance on getting the required result on our air tightness test and also for the quick turnaround of the report.â€

— 28/05/2012 - Mike Jameson, McLaren. Offices, London.

“Great air tightness testing service again today, look forward to working with you again soon, thank you for fitting us in on short notice.â€

— 21/06/2012 - Paul Dodsworth, M Chisnall & Sons. Dwelling, Hadleigh.

“Thanks very much to all at CPS for your prompt and very friendly air tightness testing services throughout.â€

— 21/06/2012 - Mr.Browne. Village Hall / Shop, Somersham.

“It was a good day, albeit we gave ourselves a reasonably tough target to achieve leakage of 5 or less ! Your airtightness testing engineer was very helpful in giving pointers to identify leaks â€

— 12/07/2012 - Mike Walker, Diamond Build. School, London.

“As ever your air tightness testing engineer was efficient and helpful and we have asked that he attend site for the next phase test in August â€

— 23/07/2012 - Steve Wibberley, Willmott Dixon. Nursery, London.

“Many thanks for you and your teams effort to ensure this project reached the required air tightness testing targetâ€

— 05/09/2012 - Oliver Egan, Cardy Group. St Georges Student Campus, Cantebury.

“Thank you very much for your help and committment to our Air Tightness Testing requirement which made us pass the air leakage test this morning. One step further to completion. Please pass our gratitude to your workforceâ€

— 16/11/2012 - Anke Rollenhagen, Sir Robert McAlpine. Office Block, Croydon.

“The Tests went well, it has been a pleasure working with you and your air test engineers. We will hopefully see you again for Air Tightness Testing on other jobsâ€

— 13/03/2013 - Simon Gould, ISG Jackson. Houses, Norwich.

“CPS Leakage ran the air tightness tests on All Saints Academy / WDL last year and I can highly recommend their serviceâ€

— 24/04/2013 - Richard Sutton, John Sisk & Son Ltd, Hangar, Luton Airport.

“I would like to offer my thanks to your air test operatives who attended site, the advice and support offered from them both was greatly appreciated.â€

— 02/05/2013 - Gary Flynn, Kier, Maitland Park Care Home, London.

“Thank you for all your assistance and the efficiency CPS have shown on this project. I look forward to air testing with you again in the futureâ€

— 24/05/2013 - Neil Burrell, ISG Jackson.1 Southampton Street, London.

“Please pass on our thanks and gratitude to your engineer responsible for the air test our building. I was impressed by his willingness to help to help and assist us when we discovered the building was not airtight. Thank you for his professional attitude and assistanceâ€

— 20/06/2013 - Chris Clifton, Kier Eastern. County School Extension, Wisbech.

“Many thanks to your engineer for his air leakage testing guidance and the pre test inspection reportâ€

— 09/07/2013- Roger Petitt, Geoffrey Osborne Ltd.Quayside Education Centre, Gosport.

“Thank you for the swift turnaround of the Air Tightness Testing certificatesâ€

— 12/09/2013- Danny Wilson, Barnes Construction. Shire Hall Apartments, Bury St Edmunds.

“Thanks for you assistance witht he air test on this projectâ€

— 13/08/2013- Kevin Morris, Ashe Construction. Weedon Local, Aylesbury.

“We have been very happy with your air tightness testing servicesâ€

— 11/11/2013- Peter Humphries, Long and Partners.British Museum, London.

“An excellent service, please pass our thanks to your air test operative who was both informative and helpful. Very refereshing.â€

— 13/12/2013- Steve Kelly, Arc Fire Pro.Alperton Police Station, London

“A very constructive afternoon of air testing, thank you.â€

— 05/02/2014 - Peter Humphries, Long & Partners. British Museum, London.

“Once again please pass on our thanks to your engineer for his patience and understanding with our air test, an excellent serviceâ€

— 14/03/2014-Simon Riches, Morgan Sindall. Medbic Buildings, Chelmsford.

“CPS Ltd have been very helpful in their air testing at Southwark Park, O&A and Lingham Street.â€

— 05/02/2014 - Barry Noble, H G Construction. Dwellings, Lingham Street.

“Please pass on our thanks to your engineers for all their assistance and guidance during our air testing at Ruislip Gardens Primary School, it was very much appreciated. We look forward to working with you in the futureâ€

— 16/06/2014 - Mark Plunkett, Kier Southern. Ruislip Garden Primary School Extension, London.

“I would particularily like to let you know how helpful your engineer was and would like to commend him for his very friendly and practical attitude when conducting the air tightness test. He is a credit to your companyâ€

— 25/06/2014 - Mr Chadwick. Dwelling, West Mersea.

“Thanks for showing my foreman about the air testing and leakage paths, it was good experience for him. â€

— 17/07/2014 - Stuart Middleton, Draper Nichols. Dwellings, North Walsham.

“I found your air test engineer most helpful, if all contractors and trades were like James my role would be made somewhat easierâ€

— 19/08/2014 - Sean James, Dove Jeffrey. Dwellings, Felmingham.

“I am very happy with your air testing service and will use you againâ€

— 02/10/2014 - Stuart Middleton, Draper Nichols. Dwellings, Fakenham.

“I am very impressed with the air test service offeredâ€

— 21/10/2014 - Curtis Morley, Morley Imports. Dwelling, Ipswich.

“Many thanks to you and your team for the patience on site and also issuing of the air test temp certs / reports promptly.â€

— 22/10/2014 - Helen Wollaston, McLaren Construction. Flats, Central London.

“Please pass on my thanks to your air tightness test engineer who I understand was very helpful on the day - good service all roundâ€

— 05/11/2014 - Richard Holdsworth, T J Evers. School, Hoddesdon.

“Being first time new builders, it was great to have such a knowledgeable pro-active air tightness testing engineer to carry out the works. We will certainly use your company for future projects â€

— 05/11/2014 - Tony Hood, HJH Homes Ltd. Dwelling, Ipswich.

“Good to work with you again, your air test lads help on site is second to none and greatly appreciated. We look forward to working with you again and I thank you once more.â€

— 12/11/2014 - Sean Carter, Hutton Group. College, Ely.

“I wanted to thank you for all your efforts at Buttsgrove Way with the air test and acoustic service that your provided during design and construction phase was vital to the success in achieving CFSHâ€

— 12/12/2014 - James Doubleday, Ashbury Construction. Dwellings, Huntingdon.

“I have to say what a credit your air testing engineer is to your company. He was extremely helpful and all our guys mentioned what a pleasure he was to work with. Please pass on our thanks from all on site yesterday.â€

— 12/12/2014 - Graeme Bull, Beagrie Co Ltd. School Extension, Gosfield.

“As always CPS have provided us with an efficient, reliable and helpful air testing serviceâ€

— 08/12/2014 - Adrian Peacock, John Youngs. Dwellings, Norwich.

“Please pass on my thanks to John West for his assistance with the air test on Saturday. His efforts enabled us to achieve a positive resultâ€

— 04/12/2015 - Jim Whitworth, Willmott Dixon. College, London.

“Just to say how pleased I am with James Nunn, your air test engineer, on these air tests. He has gone above and beyond in his efforts to help us achieve our targets and I wanted to let you know how good he has beenâ€

— 12/03/2015 - Lawrie Pithers, Dove Jeffery Homes. Flats in Benfleet, Essex.

“Thanks Andy, everyone at Dove Jeffery Homes is happy with CPS's air test servicesâ€

— 12/03/2015 - Daniela Sweeney, Dove Jeffery Homes. Flats in Colchester, Essex.

“Thank you for your presistance on the day in helping us to achieve the required air test resultsâ€

— 19/03/2015 - Graham Gee, Cocksedge Building Contractors. Houses in Haverhill, Suffolk.

“Thanks for all the help the whole CPS Team has given us with our Air Leakage Testing at Conduit Street. Georgina in the office was excellent and your air test engineer was proactive and willing to assist usâ€

— 27/03/2015 - David Stone, McLaren Construction. Offices and retail in Central London.

“I would like to say that Jim Carley, your Air Test engineer who came to site yesterday was professional, informative, knowledgeable and gave the client confidence. Please pass on my thanks for a very refreshing approach. He is a credit to your organisation.â€

— 09/04/2015 - Scott Thake, Arc Fire Protection. Extension to GSK, Stevenage.

“It was a pleasure instructing CPS Ltd to conduct our air test. The service was seamless from Rolf Toogood and James Carley. Thanks for the professional service.â€

— 15/04/2015 -Chris Levell, Levell Developments. Six Flats, Eastbourne.

“ Thank you Georgina and please thank Rolf for all his help with the air testing on this project.â€

— 30/04/2015 -Gerald Thomas, West4Construction. Two houses, London.

“HG Construction have used Construction Performance Solutions Ltd for air tests in the past. We found Andrew Hutchinson very helpful and John, an air test engineer was very hands on in helping out to get dwellings through the air testing.â€

— 04/06/2015 - Barry Noble, H G Construction. Dwellings, Southwark, London.

“Please pass my thanks on to your air test engineer Jimmy Nunn who was excellent on site yesterdayâ€

— 04/09/2015 - Adrian Peacock, John Youngs. Dwellings, Norwich.

"Thanks for your support with everyting on this project"

— 20/10/2015 - Simon Morrall, SDC. Maxwell Centre, Cambridge.

“As always, great working with CPS on my projects. Top lads who come to site to air test. Pass on my thanks.â€

— 26/10/2015 - Martin Baggley, Kier Construction London. Sangar Sequencing Building, Hinxton.

“Thanks for the air test yesterday.Your chap was efficient and helpfulâ€

— 07/12/2015 - Mark Godfrey, Blitz Services. Dwelling, Clacton.

“Can you thank your air tester John for his patience and assistance during our air test dayâ€

— 08/12/2015 - John Stedman, R G Carter. Care Home, Norfolk.

“Can you please pass on our thanks to your air test engineer for his effort / patience on Saturdayâ€

— 22/02/2016 - Andrew Small, B S W Building Systems. Manufacturing Building, Ware.

“Delighted with your service, I would like to say how efficient and amiable your air testing techician wasâ€

— 23/02/2016 - Ian Westlake, Westlake Property Management. One House, Woodbridge.

“Thanks for your help with the air test, your technician was most helpfulâ€

— 02/03/2016 - Darren Russell, Rose Builders. One House, Brightlingsea.

“Thanks you for your air test engineers work yesterday, really nice chap and very helpful, was interesting to see it happeningâ€

— 24/03/2016 - James Williams, TNS Group. Office Building, Bromeswell.

“Could I take time to say how helpful Jimmy has been advising and aiding us with our air test and also thanks too yourselves for a great service. We look forward to working with you in the futureâ€

— 18/08/2016 - Jamie Hartup, Vinci Construction Ltd. Student Accomodation, Cambridge.

“I would like to say that both Bev & Andy were exceptionally friendly, helpful and professional during the air test. Their attitude and work ethic are a credit to your company and I would have no reservation at all in recommending your company to anybody who requires air testing services.â€

— 25/08/2016 - Matt Allum, Private Builder. Dwelling, Bury St Edmunds.

“Thanks and can I say how polite & helpful your new air tester wasâ€

— 22/09/2016 - Mark Booker, Rose Builders. Dwellings, Essex.

“I want to thank you and James for today, you both really provided good service with air testingâ€

— 14/10/2016 - Paul Murthagh, John Sisk & Son Ltd. Flats, Canning Town.

“Thanks for giving us your prompt and attentive service during this air testâ€

— 20/10/2016 - Richard Thorne, Lakesmere. Office Building, Greenwich, London.

“I would like to mention how impressed i was by Beverly who carried out the air test. She was helpful, polite and just got on with the job without any fuss. Could you pass on my thanksâ€

— 12/11/2016 - Domonic Gravener. Residential building, Aldeburgh.

“Pleasure working with CPS. Your chap who did the test was first rateâ€

— 12/11/2016 - Graham Richardson. Visitor Centre, Harwich.

“Thank you Ros. Beverley was brilliant and carried out a perfect job. We would use you again.â€

— 07/02/2017 - Steven Parks. Dwelling, Felixstowe.

“Many thanks to you and your site team for a very professional serviceâ€

— 08/02/2017 - Edward Clifton. Restaurant, Dovercourt.

“Many thanks to your site crew for your assistance with getting the air test through at a difficult time in the project. They were a credit to your companyâ€

— 11/02/2017 - Richard Vipond. Stratton Upper School, Biggleswade.

“Our site team have asked that I pass our appreciation on to your air test engineer. James has been diligent & efficient in his work. He has been flexible where required in providing the necessary advice on where we can improve upon our air leakage testing for the future plots and sites.â€

— 08/03/2017 - Ben Fowler. Dwellings at Guntons Close, Soham.

“ I would just like to say, your staff (Beverley) is a credit to you. She was extremely helpful, polite and a pleasure to deal with. I will definatley be using you again in the future."

— 16/03/2017 - Karl Meyer. Dwelling, The Street, Tuddenham.

“ Your chap has completed air testing C&A blocks today and I have to say your chap has been very helpful ."

— 03/05/2017 - David Neales. Student Accomodation, Canterbury.

“ I have to say that your chap air testing on site was very professional and good to work with again"

— 09/05/2017 - David Neales. Student Accomodation, Canterbury.

“ It sounds like you air test engineer is doing a fine job"

— 24/05/2018 - Haylet Roche, ES&H. Dwellings, Ipswich.

“ Thanks CPS, great service"

— 05/06/2018 - Alan Broderick, Errigal Contracts. Smoke Shafts, 22 Bishopsgate London .

“ Thanks Jo. Great service today, on and off site"

— 21/06/2018 - Jon Trenter, Project 11. Commercial Building, Ipswich .

“ Great Job by all at CPS, thank you very much"

— 19/11/2018 - Duncan Miller, McLaren Construction. Commercial Units, Lakeside .

“Afternoon Rolf, Appreciate your (CPS) support throughout the day"

— 18/12/2018 - Steven Cory, Kier Construction Eastern. North Range Buildings, Cambridge .

“Excellent, many thanks for the quick response."

— 17/01/2019 - Tom Wesley, Faircloth. Costa, Sixfields.

“Thank you for the swift reply Rolf. Greatly appreciated."

— 14/02/2019 - Scott Thake, Arc Fire Pro . EPIC, Portsmouth.

“Excellent service from CPS they provided all the resources we needed at short notice to complete the required test in time for our hand over date. The operatives are knowledgeable they provide support and advice to our team prior to testing, a very proactive approach to ensuring a successful project. "

— 27/02/2019 - Alfie Barns, McLaren. Retail Units, ADO Ashford.

“Have to mention your guy on site was very helpful and polite. Thank him for all his help and assistance for achieving the required targets. Great help with his knowledge and his experience. A pleasure to work alongside."

— 20/03/2019 - Dave Meekings, Haynes and Smith. Broadford Primary School, Romford.

“Many thanks Jo. Great service as always."

— 05/04/2019 - Steve Roper, Suffolk New Homes. Dwellings in Rendlesham.

“Thank you for the excellent service from yourself and CPS."

— 30/04/2019 - Sean Norfolk. Solar Farm, Assington.

“On behalf of Simon and Lummis Developments would you please pass on our gratitude to your engineer, Mr Nunn, who undertook the air leakage test for us yesterday. He went over and beyond anyones expectations in helping us rectify areas that needed to be improved to ensure that we got the results needed to pass the test."

— 09/05/2019 - Asa Soderberg. Dwelling, Ipswich.

“I would like you to pass on my thanks to James for his efforts in getting these across the line yesterday. He showed great patience and was helpful in every respect. I could not have done it without him."

— 23/05/2019 - Clive Bowman, MCS Special Projects Ltd. Industrial Units, Bristol.

“Thanks Jo this is exactly what we were looking for. Thank you for your help."

— 15/07/2019 - Justyn French, Rose Builders. Dwellings, Harwich.

“The air test went very well yesterday with little impact on the general works, I believe the pre-test survey proved to be very beneficial in getting prepared and your engineer was very helpful on site."

— 25/09/2019 - Steven Palmer, Morgan Sindall. Commercial Building, Lowestoft.

“I just wanted to pass on my comments regarding your engineer who visited the site today and completed the air leakage test. From the moment he arrived he was friendly, courteous and professional, he is a real asset to the company"

— 23/10/2019 - Adam Glencastle, Private dwelling, Ipswich.

“Thank you and your team for the quick response to my request for air leakage testing, which was completed this afternoon"

— 07/11/2019 - Robert Hinton, Private dwelling, Debenham.

“I would just like to add that it has been a pleasure working with CPS Leakage and I look forward to working with you again in the future"

— 19/11/2019 - Jamie Kensit-Brown, Thomas Sinden, Dwellings in London.

“We are glad youe engineer came this morning, he's an asset to your company and a very big help to us to achieve a better result in your return"

— 05/03/2020 - John Revell, Quantum Construction, Commercial Units in Chertsey.

“Many thanks for getting us sorted today - with the helpful advice of your engineer we got down to a 4.6 which we are very happy with"

— 07/03/2020 - Richard Holdsworth, T J Evers, School Extension.

“Many thanks for arranging at short notice getting your team back for the air tests. We would like to say that your engineers went above and beyond what we have seen from other air testers. The plenums were very difficult to access but with their help we got over the line. Your engineers were always positive and worked hard in achieving what has been my hardest air test on a very complex building"

— 18/03/2020 - Allen Greenslade, Osbornes, University Building Winchester.

“Just wanted to drop a quick note to say how helpful your man James was with us a couple of weeks ago. We were really up against it in terms of time and he was happy to muck in with the mastic gun and move between buildings identifying problems for us. I am pretty sure he didnt even stop for more than a brief break"

— 03/06/2020 - Chris Allen, Mitchell Design and Construct, Industrial Units, Hastings.

“I would just like to report the helpfulness of your engineer during the testing. Very professional and an absolute pleasure to work with."

— 13/07/2020 - Cam Ritchie, Morgan Sindall, Primary School & Nursery, Hethersett.

“I have to say, your man on site was extremely helpful. We didnt pass but he did spend time with us going through what areas need attention and what we can do in preparation for your next visit. Very useful."

— 18/07/2020 - Anton Plati, Beard Construction, Landsdowne Secure Unit, Hailsham.

“Can I also add how helpful your engineer was who you sent yesterday"

— 23/07/2020 - Kyle Betts, Ovamill Ltd, Chandler House, Stoke Holy Cross.

“The operative you sent to carry out the air test yesterday was absolutley first class. Patient, helpful and knew his job inside and out. An absolute credit to your company"

— 18/09/2020 - John Overall Project Mgr, Harvard Knight, Travelodge, St Albans.

“I'd like to mention that your engineer was very helpful on the day and I would use your services again without any shadow of a doubt"

— 20/10/2020 - Krzysztof Klatka Snr Project Mgr, Readie Construction, DP World, Southampton.

“Thanks for your help yet again on another of our projects. From initial contact to site works CPS have been brilliant“

— 18/11/2020 - Chris Taylor Contracts Mgr, LST Construction, Oncology Ward Level C, Southampton Hospital.

“Fantastic service as always. Much appreciated“

— 30/03/2021 - Mel Watson, M&S Contractors (EA) Ltd, Dwellings, Needham Market.

“Once thank you to all of your team and especially your operative on site who was very helpful and knowledgeable and this is much appreciated.I look forward to seeing you all again on the next contract.“

— 31/03/2021 - Derek Paramanis, Site Manager Lawrence Baker, Care Home, Nottingham.
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Frequently Asked Questions

What is your lead time?

We average on a 2-3 week lead time, service depending. However we additionally offer evening & weekends if surcharge applicable to accommodate all needs.

What happens if the test fails?

Our engineers will work with you to identify leakage paths, carry out localized smoke tests, and recommend corrective actions until compliance is achieved.

How fast do I receive my Air Permeability Test Certificate?

Certificates are typically issued within 48 hours of a successful test, subject to UKAS accreditation sign-off.

I am finishing my own residential property, how do I know what I need?

We’ll assess your scope and advise whether you need Part L1A testing, pressure testing of individual zones, or a full dwelling test.

Contact us

We are here to assist you for any enquiries
Mon - Thu08:00 - 16:30hrs
Fridays08:00 - 16:00hrs

CPS
14 Woodbridge Road East
Ipswich, Suffolk, IP4 5PA
Sales@cpsleakage.com
+44 1473 890135
As the demand for sustainable and efficient building practices continues to rise, CPS remains at the forefront, delivering reliable and comprehensive solutions tailored to the unique needs of each sector they serve.