Certifications and memberships
At DPH, we hold ourselves to the highest standard, through ISO accreditation, RISQS accreditation, memberships, regulatory compliance and our own DPH Standard initiative. Our certifications and memberships demonstrate that our systems, processes and delivery are independently verified, while the DPH Standard sets our own high benchmark for delivering excellence.
Certifications and memberships
At DPH, we hold ourselves to the highest standard, through ISO accreditation, RISQS accreditation, memberships, regulatory compliance and our own DPH Standard initiative. Our certifications and memberships demonstrate that our systems, processes and delivery are independently verified, while the DPH Standard sets our own high benchmark for delivering excellence.
ISO STANDARDS
We are ISO 14001, ISO 45001 and ISO 9001 accredited, and see our certification as an important part of how we deliver consistently in complex, regulated Tier 1 environments. These certifications reflect DPH’s commitment to quality delivery, strong health and safety leadership, environmental responsibility, and robust governance that gives our clients confidence in how we plan, build and handover work.
Certificate No. 18017
ISO 14001
Environmental Management
Certificate No. 18017
ISO 14001
Environmental Management
Certificate No. 18017
ISO 14001
Environmental Management
Certificate No. 18017
ISO 45001
Occupational Health & Safety
Certificate No. 18017
ISO 45001
Occupational Health & Safety
Certificate No. 18017
ISO 9001
Quality Management
Certificate No. 18017
ISO 9001
Quality Management
RISQS
DPH is RISQS accredited, demonstrating our suitability to work within the UK rail industry supply chain and deliver safely in live, operational environments. Our RISQS accreditation confirms that our systems, competence, governance and delivery approach meet the requirements expected by Network Rail, TfL and Tier 1 rail contractors. It provides assurance that our work is planned, controlled and delivered in line with industry standards, with a strong focus on safety, quality and compliance. For our clients, RISQS accreditation gives confidence that DPH operates as a trusted, capable delivery partner within regulated rail environments.
Certificate No. 18017
Certificate No. 18017
Industry schemes and accreditations:
NICEIC
Certificate No. 18017
NICEIC
SAFE CONTRACTOR
Certificate No. 18017
SAFE CONTRACTOR
Certificate No. 18017
CONSTRUCTIONLINE GOLD MEMBER
CONSTRUCTIONLINE GOLD MEMBER
CIRAS
Certificate No. 18017
CIRAS
THE DPH STANDARD
Our promise to build infrastructure better
WHAT OUR CLIENTS SAY
“Communication is consistently transparent, and the DPH Ltd team integrate flawlessly with our other trades. Their professionalism, technical excellence, and dedication to quality make DPH Ltd our preferred electrical partner for future projects. We unreservedly recommend DPH Ltd for any complex electrical contracting needs. They’re a trusted partner who delivers results.”
Lee Reynolds - DIRECTOR
Circet
“We engaged DPH to deliver the works at Feltham Depot, and they exceeded expectations. The project was completed to a very high standard, with an excellent safety record, and was delivered on time and within budget. Their professionalism gave us confidence at every stage.”
Phil Wood - PROJECT DIRECTOR
MCIOB-Volkerfitzpatrick
“DPH fully understood programme dates and completion requirements across different work faces and assured labour was distributed to the correct areas to allow target dates to be met.”
Paul Anker - PROJECT MANAGER
"Recently we have worked alongside DPH on a project in the south. We found that DPH were always punctual, respectful and abiding regarding health and safety."
Paul Anker - PROJECT MANAGER
"Great work as always by DPH. Thanks very much for your help on this element of a complex project. Looking forward to working with you on future aspect of the programme."
Matt Welsh - PROJECT MANAGER
BOVIS
“DPH works were carried to a high standard, efficiently and with a positive attitude. The works were installed to drawings issued to DPH that were clearly followed to allow successful handover and client sign off.”
Paul Anker - PROJECT MANAGER
“Communication is consistently transparent, and the DPH Ltd team integrate flawlessly with our other trades. Their professionalism, technical excellence, and dedication to quality make DPH Ltd our preferred electrical partner for future projects. We unreservedly recommend DPH Ltd for any complex electrical contracting needs. They’re a trusted partner who delivers results.”
Lee Reynolds - DIRECTOR
Circet
“We engaged DPH to deliver the works at Feltham Depot, and they exceeded expectations. The project was completed to a very high standard, with an excellent safety record, and was delivered on time and within budget. Their professionalism gave us confidence at every stage.”
Phil Wood - PROJECT DIRECTOR
MCIOB-Volkerfitzpatrick
“DPH fully understood programme dates and completion requirements across different work faces and assured labour was distributed to the correct areas to allow target dates to be met.”
Paul Anker - PROJECT MANAGER
"Recently we have worked alongside DPH on a project in the south. We found that DPH were always punctual, respectful and abiding regarding health and safety."
Paul Anker - PROJECT MANAGER
"Great work as always by DPH. Thanks very much for your help on this element of a complex project. Looking forward to working with you on future aspect of the programme."
Matt Welsh - PROJECT MANAGER
BOVIS
“DPH works were carried to a high standard, efficiently and with a positive attitude. The works were installed to drawings issued to DPH that were clearly followed to allow successful handover and client sign off.”
Paul Anker - PROJECT MANAGER
“Communication is consistently transparent, and the DPH Ltd team integrate flawlessly with our other trades. Their professionalism, technical excellence, and dedication to quality make DPH Ltd our preferred electrical partner for future projects. We unreservedly recommend DPH Ltd for any complex electrical contracting needs. They’re a trusted partner who delivers results.”
Lee Reynolds - DIRECTOR
Circet
“We engaged DPH to deliver the works at Feltham Depot, and they exceeded expectations. The project was completed to a very high standard, with an excellent safety record, and was delivered on time and within budget. Their professionalism gave us confidence at every stage.”
Phil Wood - PROJECT DIRECTOR
MCIOB-Volkerfitzpatrick
“DPH fully understood programme dates and completion requirements across different work faces and assured labour was distributed to the correct areas to allow target dates to be met.”
Paul Anker - PROJECT MANAGER
"Recently we have worked alongside DPH on a project in the south. We found that DPH were always punctual, respectful and abiding regarding health and safety."
Paul Anker - PROJECT MANAGER
"Great work as always by DPH. Thanks very much for your help on this element of a complex project. Looking forward to working with you on future aspect of the programme."
Matt Welsh - PROJECT MANAGER
BOVIS
“DPH works were carried to a high standard, efficiently and with a positive attitude. The works were installed to drawings issued to DPH that were clearly followed to allow successful handover and client sign off.”
Paul Anker - PROJECT MANAGER
“Communication is consistently transparent, and the DPH Ltd team integrate flawlessly with our other trades. Their professionalism, technical excellence, and dedication to quality make DPH Ltd our preferred electrical partner for future projects. We unreservedly recommend DPH Ltd for any complex electrical contracting needs. They’re a trusted partner who delivers results.”
Lee Reynolds - DIRECTOR
Circet
“We engaged DPH to deliver the works at Feltham Depot, and they exceeded expectations. The project was completed to a very high standard, with an excellent safety record, and was delivered on time and within budget. Their professionalism gave us confidence at every stage.”
Phil Wood - PROJECT DIRECTOR
MCIOB-Volkerfitzpatrick
“DPH fully understood programme dates and completion requirements across different work faces and assured labour was distributed to the correct areas to allow target dates to be met.”
Paul Anker - PROJECT MANAGER
"Recently we have worked alongside DPH on a project in the south. We found that DPH were always punctual, respectful and abiding regarding health and safety."
Paul Anker - PROJECT MANAGER
"Great work as always by DPH. Thanks very much for your help on this element of a complex project. Looking forward to working with you on future aspect of the programme."
Matt Welsh - PROJECT MANAGER
BOVIS
“DPH works were carried to a high standard, efficiently and with a positive attitude. The works were installed to drawings issued to DPH that were clearly followed to allow successful handover and client sign off.”
Paul Anker - PROJECT MANAGER
“Communication is consistently transparent, and the DPH Ltd team integrate flawlessly with our other trades. Their professionalism, technical excellence, and dedication to quality make DPH Ltd our preferred electrical partner for future projects. We unreservedly recommend DPH Ltd for any complex electrical contracting needs. They’re a trusted partner who delivers results.”
Lee Reynolds - DIRECTOR
Circet
“DPH works were carried to a high standard, efficiently and with a positive attitude. The works were installed to drawings issued to DPH that were clearly followed to allow successful handover and client sign off.”
Paul Anker - PROJECT MANAGER
“DPH fully understood programme dates and completion requirements across different work faces and assured labour was distributed to the correct areas to allow target dates to be met.”
Paul Anker - PROJECT MANAGER
“We engaged DPH to deliver the works at Feltham Depot, and they exceeded expectations. The project was completed to a very high standard, with an excellent safety record, and was delivered on time and within budget. Their professionalism gave us confidence at every stage.”
Phil Wood - PROJECT DIRECTOR
MCIOB-Volkerfitzpatrick
"Great work as always by DPH. Thanks very much for your help on this element of a complex project. Looking forward to working with you on future aspect of the programme."
Matt Welsh - PROJECT MANAGER
BOVIS
"Recently we have worked alongside DPH on a project in the south. We found that DPH were always punctual, respectful and abiding regarding health and safety."
Paul Anker - PROJECT MANAGER
“Communication is consistently transparent, and the DPH Ltd team integrate flawlessly with our other trades. Their professionalism, technical excellence, and dedication to quality make DPH Ltd our preferred electrical partner for future projects. We unreservedly recommend DPH Ltd for any complex electrical contracting needs. They’re a trusted partner who delivers results.”
Lee Reynolds - DIRECTOR
Circet
“DPH works were carried to a high standard, efficiently and with a positive attitude. The works were installed to drawings issued to DPH that were clearly followed to allow successful handover and client sign off.”
Paul Anker - PROJECT MANAGER
“DPH fully understood programme dates and completion requirements across different work faces and assured labour was distributed to the correct areas to allow target dates to be met.”
Paul Anker - PROJECT MANAGER
“We engaged DPH to deliver the works at Feltham Depot, and they exceeded expectations. The project was completed to a very high standard, with an excellent safety record, and was delivered on time and within budget. Their professionalism gave us confidence at every stage.”
Phil Wood - PROJECT DIRECTOR
MCIOB-Volkerfitzpatrick
"Great work as always by DPH. Thanks very much for your help on this element of a complex project. Looking forward to working with you on future aspect of the programme."
Matt Welsh - PROJECT MANAGER
BOVIS
"Recently we have worked alongside DPH on a project in the south. We found that DPH were always punctual, respectful and abiding regarding health and safety."
Paul Anker - PROJECT MANAGER
“Communication is consistently transparent, and the DPH Ltd team integrate flawlessly with our other trades. Their professionalism, technical excellence, and dedication to quality make DPH Ltd our preferred electrical partner for future projects. We unreservedly recommend DPH Ltd for any complex electrical contracting needs. They’re a trusted partner who delivers results.”
Lee Reynolds - DIRECTOR
Circet
“DPH works were carried to a high standard, efficiently and with a positive attitude. The works were installed to drawings issued to DPH that were clearly followed to allow successful handover and client sign off.”
Paul Anker - PROJECT MANAGER
“DPH fully understood programme dates and completion requirements across different work faces and assured labour was distributed to the correct areas to allow target dates to be met.”
Paul Anker - PROJECT MANAGER
“We engaged DPH to deliver the works at Feltham Depot, and they exceeded expectations. The project was completed to a very high standard, with an excellent safety record, and was delivered on time and within budget. Their professionalism gave us confidence at every stage.”
Phil Wood - PROJECT DIRECTOR
MCIOB-Volkerfitzpatrick
"Great work as always by DPH. Thanks very much for your help on this element of a complex project. Looking forward to working with you on future aspect of the programme."
Matt Welsh - PROJECT MANAGER
BOVIS
"Recently we have worked alongside DPH on a project in the south. We found that DPH were always punctual, respectful and abiding regarding health and safety."
Paul Anker - PROJECT MANAGER
“Communication is consistently transparent, and the DPH Ltd team integrate flawlessly with our other trades. Their professionalism, technical excellence, and dedication to quality make DPH Ltd our preferred electrical partner for future projects. We unreservedly recommend DPH Ltd for any complex electrical contracting needs. They’re a trusted partner who delivers results.”
Lee Reynolds - DIRECTOR
Circet
“DPH works were carried to a high standard, efficiently and with a positive attitude. The works were installed to drawings issued to DPH that were clearly followed to allow successful handover and client sign off.”
Paul Anker - PROJECT MANAGER
“DPH fully understood programme dates and completion requirements across different work faces and assured labour was distributed to the correct areas to allow target dates to be met.”
Paul Anker - PROJECT MANAGER
“We engaged DPH to deliver the works at Feltham Depot, and they exceeded expectations. The project was completed to a very high standard, with an excellent safety record, and was delivered on time and within budget. Their professionalism gave us confidence at every stage.”
Phil Wood - PROJECT DIRECTOR
MCIOB-Volkerfitzpatrick
"Great work as always by DPH. Thanks very much for your help on this element of a complex project. Looking forward to working with you on future aspect of the programme."
Matt Welsh - PROJECT MANAGER
BOVIS
"Recently we have worked alongside DPH on a project in the south. We found that DPH were always punctual, respectful and abiding regarding health and safety."
Paul Anker - PROJECT MANAGER
“Communication is consistently transparent, and the DPH Ltd team integrate flawlessly with our other trades. Their professionalism, technical excellence, and dedication to quality make DPH Ltd our preferred electrical partner for future projects. We unreservedly recommend DPH Ltd for any complex electrical contracting needs. They’re a trusted partner who delivers results.”
Lee Reynolds - DIRECTORCircet“DPH fully understood programme dates and completion requirements across different work faces and assured labour was distributed to the correct areas to allow target dates to be met.”
Paul Anker - PROJECT MANAGER“We engaged DPH to deliver the works at Feltham Depot, and they exceeded expectations. The project was completed to a very high standard, with an excellent safety record, and was delivered on time and within budget. Their professionalism gave us confidence at every stage.”
Phil Wood - PROJECT DIRECTORMCIOB-Volkerfitzpatrick“DPH works were carried to a high standard, efficiently and with a positive attitude. The works were installed to drawings issued to DPH that were clearly followed to allow successful handover and client sign off.”
Paul Anker - PROJECT MANAGER"Great work as always by DPH. Thanks very much for your help on this element of a complex project. Looking forward to working with you on future aspect of the programme."
Matt Welsh - PROJECT MANAGERBOVIS"Recently we have worked alongside DPH on a project in the south. We found that DPH were always punctual, respectful and abiding regarding health and safety."
Paul Anker - PROJECT MANAGER“Communication is consistently transparent, and the DPH Ltd team integrate flawlessly with our other trades. Their professionalism, technical excellence, and dedication to quality make DPH Ltd our preferred electrical partner for future projects. We unreservedly recommend DPH Ltd for any complex electrical contracting needs. They’re a trusted partner who delivers results.”
Lee Reynolds - DIRECTORCircet“DPH fully understood programme dates and completion requirements across different work faces and assured labour was distributed to the correct areas to allow target dates to be met.”
Paul Anker - PROJECT MANAGER“We engaged DPH to deliver the works at Feltham Depot, and they exceeded expectations. The project was completed to a very high standard, with an excellent safety record, and was delivered on time and within budget. Their professionalism gave us confidence at every stage.”
Phil Wood - PROJECT DIRECTORMCIOB-Volkerfitzpatrick“DPH works were carried to a high standard, efficiently and with a positive attitude. The works were installed to drawings issued to DPH that were clearly followed to allow successful handover and client sign off.”
Paul Anker - PROJECT MANAGER"Great work as always by DPH. Thanks very much for your help on this element of a complex project. Looking forward to working with you on future aspect of the programme."
Matt Welsh - PROJECT MANAGERBOVIS"Recently we have worked alongside DPH on a project in the south. We found that DPH were always punctual, respectful and abiding regarding health and safety."
Paul Anker - PROJECT MANAGER“Communication is consistently transparent, and the DPH Ltd team integrate flawlessly with our other trades. Their professionalism, technical excellence, and dedication to quality make DPH Ltd our preferred electrical partner for future projects. We unreservedly recommend DPH Ltd for any complex electrical contracting needs. They’re a trusted partner who delivers results.”
Lee Reynolds - DIRECTORCircet“DPH fully understood programme dates and completion requirements across different work faces and assured labour was distributed to the correct areas to allow target dates to be met.”
Paul Anker - PROJECT MANAGER“We engaged DPH to deliver the works at Feltham Depot, and they exceeded expectations. The project was completed to a very high standard, with an excellent safety record, and was delivered on time and within budget. Their professionalism gave us confidence at every stage.”
Phil Wood - PROJECT DIRECTORMCIOB-Volkerfitzpatrick“DPH works were carried to a high standard, efficiently and with a positive attitude. The works were installed to drawings issued to DPH that were clearly followed to allow successful handover and client sign off.”
Paul Anker - PROJECT MANAGER"Great work as always by DPH. Thanks very much for your help on this element of a complex project. Looking forward to working with you on future aspect of the programme."
Matt Welsh - PROJECT MANAGERBOVIS"Recently we have worked alongside DPH on a project in the south. We found that DPH were always punctual, respectful and abiding regarding health and safety."
Paul Anker - PROJECT MANAGER“Communication is consistently transparent, and the DPH Ltd team integrate flawlessly with our other trades. Their professionalism, technical excellence, and dedication to quality make DPH Ltd our preferred electrical partner for future projects. We unreservedly recommend DPH Ltd for any complex electrical contracting needs. They’re a trusted partner who delivers results.”
Lee Reynolds - DIRECTORCircet“DPH fully understood programme dates and completion requirements across different work faces and assured labour was distributed to the correct areas to allow target dates to be met.”
Paul Anker - PROJECT MANAGER“We engaged DPH to deliver the works at Feltham Depot, and they exceeded expectations. The project was completed to a very high standard, with an excellent safety record, and was delivered on time and within budget. Their professionalism gave us confidence at every stage.”
Phil Wood - PROJECT DIRECTORMCIOB-Volkerfitzpatrick“DPH works were carried to a high standard, efficiently and with a positive attitude. The works were installed to drawings issued to DPH that were clearly followed to allow successful handover and client sign off.”
Paul Anker - PROJECT MANAGER"Great work as always by DPH. Thanks very much for your help on this element of a complex project. Looking forward to working with you on future aspect of the programme."
Matt Welsh - PROJECT MANAGERBOVIS"Recently we have worked alongside DPH on a project in the south. We found that DPH were always punctual, respectful and abiding regarding health and safety."
Paul Anker - PROJECT MANAGER
LATEST ACCREDITATIONS
See the latest news with DPH
Stay up to date with our latest certification and accreditation updates on our Insights page, where we share our latest company news, expertise and views on electrical construction.
LATEST ACCREDITATIONS
See the latest news with DPH
Stay up to date with our latest certification and accreditation updates on our Insights page, where we share our latest company news, expertise and views on electrical construction.
LATEST ACCREDITATIONS
See the latest news with DPH
Stay up to date with our latest certification and accreditation updates on our Insights page, where we share our latest company news, expertise and views on electrical construction.
Work with a Certified Delivery Partner
Confidence from start to finish
Certifications back up our promise of safe, consistent delivery. Talk to us about your project and discover how independent verification ensures quality and compliance at every stage.
Work with a Certified Delivery Partner
Confidence from start to finish
Certifications back up our promise of safe, consistent delivery. Talk to us about your project and discover how independent verification ensures quality and compliance at every stage.
Work with a Certified Delivery Partner
Confidence from start to finish
Certifications back up our promise of safe, consistent delivery. Talk to us about your project and discover how independent verification ensures quality and compliance at every stage.