ERG Scotland

ERG Scotland: windows, doors and living spaces from Invergordon

ERG Scotland presents itself as an installer of double-glazed windows, doors, conservatories and home extensions, serving Inverness and the surrounding area from a showroom in Invergordon. The company states that it has been delivering excellence for 50 years, from 1974 to 2024, and describes itself as a leading installer of conservatories, sunrooms, tiled roof extensions, double glazing windows and doors throughout Inverness, Scotland.

Window ranges and performance

The window catalogue is organised into three named collections. Extreme UPVC is presented as the top-performing window collection, with an A+ energy rating as standard and added security features. Envisage Flush places the sashes flush to the frame for an understated elegance without compromising performance. Eclipse Aluminium is described as affordable luxury and contemporary styling, with a slim-frame aluminium collection. The site also lists window styles including casement, flush, tilt and turn, bay and bow, cottage, sliding sash and slim frame.

Doors for security and access

The door range covers front and back doors, bi-folding doors, patio doors, French doors, composite doors, UPVC doors, aluminium doors, triple track doors, stable doors and entrance porches. The company presents these as secure and stylish options, with a wide range of colours, styles and accessories. Bi-folding doors are positioned as a way to open up living space, patio doors as a space-saving sliding option, French doors as an energy-efficient and secure everyday solution, and stable doors as suitable for front or back entrances with a country touch and top-half ventilation.

Conservatories, extensions and replacement roofs

Living spaces include conservatories and extensions. Conservatories are described as traditionally designed to complement rather than mimic the home, while extensions are presented as an alternative to moving when more space is needed. The roof section lists tiled roofs, glass roofs, flat roofs and lantern roofs, and the site includes a case study of a replacement tiled roof conservatory featuring a tiled roof system, a glass roof conservatory with bi-folding doors, and grey Envisage Flush windows with a French door for a 1920s cottage.

Showroom and customer-facing process

ERG Scotland invites visitors to its Invergordon showroom, where a sales team is available to answer questions. The site provides pathways for requesting a free quotation, booking an appointment, requesting a brochure, making a general enquiry, customer care, requesting service and requesting a call back. It also publishes buyers guides, galleries, case studies, FAQs and a blog with advice on topics such as conservatory roof replacement, aluminium versus UPVC windows and composite doors.

Guarantees, price promise and aftercare

The company states that it offers a comprehensive guarantee across all products, covering both moving and non-moving parts. It also operates a price promise: if a customer can find the same product specification and service commitment cheaper elsewhere within 14 days, ERG Scotland will refund the difference. The site refers to an ethos of high standards, listening to customer needs and tailoring services to individual requirements, and it lists aftercare service and installation focus among its support areas.

Customer feedback and case studies

The site displays a selection of customer reviews dated between June and October 2026, covering installations of porches, composite doors, windows and conservatory work. The reviews comment on professionalism, communication, technical advice and fitting. These are individual testimonials and are presented as such. The case studies portfolio shows completed projects including a revamped conservatory with a tiled roof system, a light dining space with a glass roof and bi-folding doors, and a modern update of a 1920s cottage with grey Envisage Flush windows and a French door.