At double the industry standard, we offer a 20-Year Guarantee to give you complete value for money and a lifetime of reassurance.


Once your home improvements project is finished, we’ll issue and date your guarantee certificate.

We’re able to offer such a guarantee because our products and designed and manufactured to last – even in the harsh weather of the Highlands! Let’s face it, windows, doors and living spaces are not an everyday purchase. They’re a considerable outlay and at ERG, we’re proud to offer a guarantee that reflects and protects the investment you’re making to your home.

Our Guarantee


Any associated labour cost with your repair or remedial work will be covered for 10 years. If anything does go wrong in the first decade, it won’t cost you a penny.

After that, labour is chargeable – but any parts or products still covered by the guarantee will be provided free of charge.

Our Guarantee


If there is a problem, please contact us because you’ll invalidate the guarantee if a third party carries out any repairs or modifications. Also, both accidental and environmental damage to your product isn’t covered.

There are a few additional services that fall outside of the standard cover, including plumbing, plastering and any landscaping.  Building work, doors and coloured foils are guaranteed for 10 years.

Our Guarantee


For further details on our guarantee, including a full list of exclusions and exceptions, please contact a member of the ERG team who’ll be happy to help.


Every promise we make, we keep. Every time. Our promises are bold and are there to assure you that we’re completely confident in our products and our service.


At ERG we realise the importance of gaining trust and not expecting it. We believe this is achieved through hard work, honesty, transparency of our services and valuing our customers.

Ethos of ERG Scotland

Our teams adhere to a strict ethos which is to achieve only the highest standards of excellence at all times. We listen to our customer’s needs and tailor our services to meet all individual requirements.

20 Year Guarantee

ERG Scotland is proud to be Scotlands very first to offer a 20 Year Guarantee. Not only that, you will also be covered for both moving and non-moving parts. Our confidence in our products and dedication to our customers means we’ll be there for you well into the future.

Price Promise

Giving our customers complete confidence in the price that they pay is very important to us. So, if you, or any customer, can find the same product specification and service commitment cheaper elsewhere, within 14 days, we’ll refund the difference.


Everyone is welcome to come in and browse around our showroom, where our friendly sales team will be pleased to help with any questions you may have.



If you have a query or issue about any of our products or services you can contact the Customer Services team by completing the form below.

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Want to speak with an Advisor? Give us a call on 01349 856900

Our friendly team will be pleased to help with any questions you may have.