Business Details
21 Years
experience
Premier Carpentry & Joinery Contractors in London
Established in 2005 by Denis Treacy, building on the success of DP Treacy Carpentry, DPT is a leading carpentry and joinery contractor serving London and the Home Counties. Our team, led by four directors with decades of industry expertise, delivers high-quality craftsmanship across diverse projects for blue-chip contractors and designers. We prioritise proactive, hands-on management, employing CSCS-registered carpenters and joiners tailored to each projects requirements. All operatives undergo rigorous health and safety training, with individual accountability reinforced through close supervision. Our commitment to excellence extends to supplier relationships, verified through factory audits to maintain quality and consistency.As FSC and PEFC-certified contractors, we uphold sustainable practices through regular audits, ensuring compliance with exacting environmental standards. We pride ourselves on collaborative, transparent delivery, fostering long-term client satisfaction through precision and reliability. Our legacy is rooted in traditional values, balanced with modernisation to accommodate evolving project demands. The tragic loss of co-founder Betty Treacy in 2021 remains a profound reminder of our dedication to her vision and the businesss enduring principles.
Services
Carpentry
Joinery
Fire Door Installation
Heritage Restoration
Timber Framing
Commercial Fit-Outs
Details
- Year established: 2005
Highlights and features
- We offer 40 years of combined director experience in carpentry and joinery.
- Our team includes Q-mark certified fire door installation and maintenance specialists.
- We implement a proactive management approach with individual operative accountability.
- Our FSC and PEFC certifications demonstrate commitment to sustainable practices.
- We maintain rigorous supplier audits to ensure consistent quality and delivery standards.
Associations and certifications
- FSC
- PEFC
What people say
Exceptional workmanship
Reliable delivery
Professional team
Sustainable practices
Attention to detail
Services
Carpentry
We provide comprehensive first and second fix carpentry services, from structural timber frames to intricate joinery. Our team handles acoustic flooring, decorative cladding, and cubicle systems, ensuring precision in both commercial and residential settings. Projects span new builds and high-rise developments.
Joinery
Our bespoke joinery includes staircases, vanity units, and tailored door sets. We blend traditional craftsmanship with modern techniques, delivering high-end finishes for hotels, heritage sites, and private residences across London and the Home Counties.
Fire Door Installation
We offer certified Q-mark fire door installation and maintenance, ensuring compliance with safety regulations. Our temporary FD120S fire doors provide critical protection during construction, supported by certified technicians with specialist training.
Heritage Restoration
Specialising in Grade 1 & 2 listed buildings, we restore timber flooring, joists, and architectural elements. Our team combines traditional methods with modern expertise to preserve historical integrity while meeting contemporary standards.
Commercial Fit-Outs
We deliver reception fit-outs and decorative internal cladding for commercial spaces. Our focus on precision and collaboration ensures projects align with client vision, from corporate offices to high-end retail environments.
People
Denis Treacy
Managing Director
With 40 years in carpentry, Denis founded DPT after DP Treacy Carpentry's success. He champions a 'can do' attitude, maintaining client relationships and overseeing project execution.
Andrew Giles
Director
Andrew leads procurement and pre-construction planning, leveraging 20 years' experience with Denis. He collaborates closely with clients on tender and live projects, offering industry expertise.
Niamh Treacy
Director
Niamh manages pre-contract negotiations and commercial decisions. She holds Q-mark certification for fire door installation and maintenance, ensuring compliance with rigorous safety standards.
Noel Kerins
Director
With a specialist contracting background, Noel focuses on quality control. His engineering expertise ensures meticulous execution, even under demanding deadlines and site restrictions.
Betty Treacy
Director
A founding director, Betty was instrumental in DPT's growth until her passing in 2021. Her legacy continues to shape the company's values and client-centric ethos.
Questions
What areas do DPT cover for carpentry projects?
We operate throughout London and the Home Counties, delivering tailored carpentry solutions for commercial, residential, and heritage projects.
Are DPT certified for fire door installation?
Yes, we hold Q-mark certification for fire door installation and maintenance, performed by trained technicians to ensure full compliance.
How does DPT ensure quality in joinery work?
We conduct factory audits, employ CSCS-registered operatives, and maintain FSC® and PEFC certifications for sustainable, high-standard practices.
Can DPT handle heritage building restoration?
Our expertise includes Grade 1 & 2 listed buildings, where we restore timber elements while preserving historical integrity and meeting modern regulations.
What types of commercial projects does DPT undertake?
We deliver fit-outs for offices, hotels, hospitals, and high-end retail spaces, combining precision with collaborative project management.
Does DPT offer temporary fire door solutions?
Yes, we supply and install temporary FD120S fire doors during construction phases to maintain safety compliance on-site.
