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Cornerstone
GREEN HOMES GRANT VOUCHER SCHEME: Cornerstone is not currently operating under the Green Homes Grant Voucher Scheme for any measures. We do have a waiting list in place for private External Wall Insulation works in the East Anglia region only - please email enquiries@cornerstonelimited.co.uk to register your interest.

Cornerstone is a leading funder and installer of energy efficiency measures, from insulation and heating to renewable technologies. A family business, we have grown organically to service customers across the whole of mainland UK while retaining the steadfast commitment to customer satisfaction that has been our hallmark.

Our customers include private and social landlords with housing stock numbering in the thousands, as well as individual householders seeking a bespoke retrofit solution for their home. In each case, we leverage all available funding and offer competitive finance to ensure each installation is affordable and represents a positive return on investment.
Services
Cornerstone has a philosophy of self-delivery, installing our energy efficiency measures using a combination of directly employed staff and self-employed individuals that work exclusively for our business wherever possible. Our people are highly skilled and committed to providing high quality energy efficiency solutions for our customers.
External Wall Insulation (EWI) is an extremely effective means of insulating solid wall properties to significantly reduce the amount of heat lost through the walls. The installation process involves fixing a layer of insulation material to the external walls of a property, and covering it with reinforcement and a special render in a range of decorative finishes.
Loft insulation involves the installation of insulating material between the joists of a loft floor to prevent the movement of heated air into the loft space and ultimately out through the roof. Heat will always flow from a warm area to a cold one and hot air rises. The colder it is outside, the faster heat from your home will escape into the surrounding air and up through the roof.
The term 'cladding' refers to components that are attached to the primary structure of a building to form non-structural, external surfaces - essentially forming a 'skin' around the building. Cladding can be made of materials including wood, metal, vinyl and a range of composites, and are often installed as prefabricated panels.
High performance through coloured render is an excellent option to improve the aesthetic of a domestic or commercial property. Render can completely change the look of a property, with customers able to choose from a broad range of smooth and textured decorative finishes. New render can replace old, tired or cracked existing coatings, as well as painted brickwork, removing the necessity to re-paint the surface every few years.
Reviews (6)
Jacky Allen
Jacky Allen
Oct 22, 2021
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My cladding was fitted by Cornerstone, and I am absolutely delighted with the outcome. Professionals, always had a smile, and even when they looked tired, they never let that smile fade. Any questions I needed answered, were given with that smile! we were very, very lucky to get a grant.and it will certainly make our Home warmer in the winter. Excellent work!
Mike Day
Mike Day
Oct 09, 2021
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Positive: Professionalism
Cornerstone recently fitted External Wall Insulation to a large number of Mobile Homes near Dunstable, the work on my Mothers home was completed to a high standard, Darren in particular was very good when dealing with my Mother, she is now looking forward to her first Winter with some very good insulation.
Richard Garland
Richard Garland
Aug 19, 2020
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Critical: Responsiveness
Unable to get any response to a new business enquiry despite trying several times.
Shirley Isseyegh
Shirley Isseyegh
Jan 04, 2020
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Positive: Quality, Responsiveness
Completely transformed and improved my Cottage with EWI and new render to garage plus fitted new soffits/fascias and gutters. Professional, polite and willing to go the extra mile.
Norfolk On My Mind
Norfolk On My Mind
Dec 17, 2017
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Cornerstone is a professional, friendly and reliable company. I highly recommend them.
Victoria McCall
Victoria McCall
Nov 12, 2017
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I made 100% payments towards agreed quote. 1 months delayed then they refused to complete a job. I took a loan for that, refund was made but £60 complementary voucher from Marks&Spenser has never been sent. I lost money on loan interests. Avoid!