ARG’s core service is boiler installations—the “bread and butter” of the business—offering high revenue with relatively low complexity. They specialise in combi, regular (heat-only), and system boilers, working exclusively with gas and electric units. Standard swaps are typically completed in one day, while full system installations take 3–4 days. Install costs range from £2,000–£3,000, with labour-only between £800–£1,000.

ARG stands out by offering a 2-year guarantee on labour and materials, double the industry norm, and is working toward Worcester Bosch accreditation for extended warranties. Supporting services include repairs, general plumbing, and bathrooms. The company operates across Essex, Hertfordshire, and London (inside the M25).