From tunnelling and rail infrastructure to deep drainage and rehabilitation, we provide safe, reliable, and cost-effective results.
MDA specialise in the installation of deep drainage systems at depths exceeding 5m, using traditional open cut methodology. Depending on site requirements, we employ trench boxes or sheets and walers as part of a temporary works solution. Above all, safety remains our priority, ensuring a secure environment for installation, testing, and backfilling of drainage pipework.
MDA have successfully installed culverts across the UK and Ireland, acting as specialist installers for major Tier 1 Contractors. Our projects include jacking culverts beneath live roads and railways as well as open cut installations. With a strong attention to detail, we ensure edges are precise and joints are perfectly sealed, delivering durable, watertight structures.
MDA possess extensive experience in constructing shafts up to 30m in diameter and 35m deep. Our expertise covers a range of techniques, from hydraulically jacked segmental shafts to underpinning. We can adapt methods to site constraints, whether using one-piece caisson rings or segmental installations, always maintaining safety and efficiency in challenging conditions.
MDA undertake deep excavation projects of varying scales, often incorporating confined space activities within them. Our experience includes trench sheet installation, proprietary manhole boxes and frames, timber-lined excavations, and all forms of earthworks. Every excavation is managed with a focus on safety, precision, and compliance to deliver reliable results.
MDA provide full and partial tunnel and sewer rehabilitation, with a focus on trenchless technology and man-entry solutions. Our team can assess existing pipelines and recommend strengthening options to extend service life. Where needed, we deliver cost-effective alternatives that reduce disruption while improving long-term structural performance.
In situations where modern methods are not practical or economical, traditional timber headings always provide a highly effective alternative. Hand-constructed by experienced operatives, timber headings are a cost-effective solution for short tunnelled sections. This proven technique continues to play a highly vital role in trenchless and confined space projects.
MDA have a proven track record in delivering technically demanding works within the rail environment, both above and below ground. We specialise in completing complex schemes under tight timescales while maintaining impeccable safety standards. Recent works include installing a large PCC culvert beneath the mainline railway in just 108 hours, ahead of schedule and incident-free.
Matt Durbin Associates have the expertise and capability to drive hand-mined drill and blast tunnels through challenging rock conditions. At Wookey Hole Caves, we created a 2.4m diameter, 80m long tunnel to link two cave systems, forming part of a new tourist attraction. Our precision and safety-first approach ensure successful outcomes on specialist projects.
Matt Durbin Associates are specialists in grouting techniques used to renovate or stabilise underground structures. Services include annulus grouting, pressure grouting, displacement grouting, gravity-fed pipework grouting, and chemical grouting. Our methods are tailored to the needs of each project, ensuring safety, durability, and structural integrity.
MDA specialise in the installation of GRP liners into existing sewer networks, improving strength and extending service life. We have installed over 10,000 linear metres of liners across the UK and Ireland, covering a wide variety of sizes and profiles. Our experienced team ensure every lining project is completed with precision and quality.
MDA provide detailed surveying services to assess the condition of underground assets and recommend repairs or rehabilitation. Depending on access, we use a range of techniques including CCTV inspection and man-entry surveys. Our reports help clients make informed decisions that extend asset lifespan and improve performance.
MDA offer highly trained rescue teams for confined space projects, ensuring safety in every scenario. We conduct full mock rescues on all sites, often in coordination with clients and local fire services. This proactive approach demonstrates our commitment to safety and provides reassurance that every project is prepared for the unexpected.
