AJ Engineering & Construction Services Ltd

AJ Engineering & Construction Services Ltd provide a wide spectrum of engineering services ranging from steel fabrication and CNC machining to cladding and civil engineering, with our highly experienced team we provide on-time, on-budget quality solutions.

From our bases in Forres and Fort William, and a team accustomed to travel we can meet our client’s needs wherever required.

Having worked on various water and wastewater treatment projects for the past 25 years we have developed a great working relationship with water companies across the UK.

Our in-house capabilities allow us to offer a turnkey service to our clients from reactive maintenance and manufacturing to planned infrastructure and non-infrastructure projects. Many of the projects we undertake in the water sector are within water treatment and wastewater treatment plants where cleanliness is paramount, all our water sector site teams hold certification and Water Hygiene cards.

Our range of services collated into one means that we can take on multiple discipline contracts and deliver them as one which provides our clients with a number of advantages.

It removes the need to have multiple contractors on site at once.
Benefits in cost savings passed down on procuring large amounts of steel for a side wide project.
Little risk of dimensional discrepancies between contractors

We work alongside framework delivery partners throughout the UK providing the services below;

Steel portal frame buildings (design, fabrication, erection & cladding)
Design, manufacture and installation of pipe bridges
Design, manufacture and installation of site wide access metalwork (walkways, access stairs, ladders etc)
Design, manufacture and installation of modular water buildings transportable by road.
Design of various process tanks, pipework and pumps.
Fabrication of tanks and pipework (stainless and carbon)
Mechanical Installation
Modular Treatment Buildings and Mechanical Fit-out
SR2 rated steel enclosures (quicker than GRP Kiosks)

We appreciate how important quality and cleanliness is in the water sector and we are proud that we have completely segregated facilities for stainless steel and carbon steel.

In addition to this we are also approved under the regulations 31(4)(A) of the water supply regulations 2016 to supply stainless steel and pipework fabrications to the drinking water sector.

Central Borders Strategy (2024)

£30m upgrade to enhance water treatment and distribution in Central Borders for improved quality and reliability for local communities

Esholt STW (2024)

Fulfilling the Water Industry National Environmental Programme to reduce overall phosphorus in our rivers

West Hallington Reservoir (2024)

West Hallington Reservoir is a Northumbrian Water Group (NWG) asset situated 1km to the northeast of the village of Colwell in the Tynedale district of Northumberland. The reservoir was constructed between 1884 and 1890 for Newcastle & Gateshead Water Company for the purpose of municipal water supply. The reservoir was built adjacent to the earlier […]

Witches Oak WTW: Green Recovery - Decarbonising Water Resources (2024)

The challenges of designing and constructing the Witches Oak programme of works on multiple sites to a condensed timescale

Beckton STW (2023)

Beckton Sewage Treatment Works (STW) is the United Kingdom’s largest STW serving a population equivalent of over four million. The AMP7 project is a major £185m investment to increase the site’s treatment capacity for growth, by a population equivalent of 200,000, by extending the existing activated sludge plant (ASP). Beckton STW will receive stormwater from […]

Craighead WTW (2021)

Craighead WTW is a new water treatment works located on a greenfield site close to the existing works in the north-east of Scotland. The project objective is to improve the treatment of water to the customers of the town of Huntley and surrounding areas. The existing Craighead WTW has reached the end of its economic […]

Invercannie WTW (2020)

Located to the West of the town of Banchory, Aberdeenshire, Scottish Water’s Invercannie WTW is currently a 49 Ml/d water treatment works which serves the local population as well as providing raw and treated water to Mannofield WTW in Aberdeen via two 28km aqueducts (one laid in 1866 and the other in 1924). The treatment […]

Uig WTW (2020)

Uig WTW is located on the west coast of Lewis and provides potable water to the community of around 500 residents, with a significant tourist increase in the summer months. The works are gravity-fed by a high-level loch around 2km from the site. Treated water is then pumped from the water treatment works to a […]

Ardersier WwTW (2019)

Ardersier is located on the Moray Firth some 11 miles east of Inverness. The wastewater treatment works serves the town of Ardersier and the surrounding area including Inverness Airport and Fort George Barracks. It currently serves a population of less than 2,000 but there are significant developments planned in the area with a long-term future […]

Glenlatterach WTW (2019)

Located south of the town of Elgin in the north east of Scotland, Scottish Water’s Glenlatterach WTW is situated in the heart of Speyside, home to some of Scotland’s most beautiful scenery as well as roughly half of all of the whisky distilleries operating in Scotland. Raw water is abstracted from the Glenlatterach Reservoir and […]

Inverurie WwTW (2019)

Inverurie Wastewater Treatment Works lies on the banks of the River Don in Aberdeenshire, at the confluence with the River Urie, and serves a current population of approximately 28,000 people with substantial future growth within the catchment forecasted. This project has been initiated by Scottish Water to provide compliance with new nutrient discharge consents under […]

Our premises from the air

Invercannie WTW lime building erection

Invercannie CWT DAF building

What we do:

Asset Maintenance & Rehabilitation: Servicing & Repair | Tank Maintenance & Repair

Contractors: Mechanical | Structural Steelwork

Designers: Mechanical Design | Structural Design

Health & Safety: Access Systems | Hand Railing | Stairs | Walkways

Reservoirs & Storage: Products | Access Steps & Ladders

Wastewater Pumping Stations: Products & Services | Pipework | Pipework Supports & Accessories

Water Pumping Stations: Modular Pumping Stations