Home insulation installers you can trust

InstaGroup is one of the leading home insulation installers across the south-east of England. We’ve been installing energy efficiency solutions since 1980, so whatever the size or age of your property, you can trust us to help improve its comfort and appeal.

Our professional installation services include Solid Wall insulation, Cavity Wall insulation and Loft insulation. We also install insulation systems especially designed for Park Homes.

The expert home insulation installers

We’re known for our experience as home insulation installers, but we also offer expertise in External Render without insulation. It’s a quick and cost-effective way to refresh the look of your property and add instant value and kerb-appeal.

Further services include Boiler installation and upgrading heating systems.

Recommended insulation for your home

If you’re looking for home insulation installers you can trust, get in touch.  We’ll provide a friendly and courteous service throughout, from thorough home energy efficiency survey through to expert recommendations and professional installation.

You can be sure that all of our workmanship is accredited and guaranteed, and we offer product warranties of up to 25 years.

We’re recommended home insulation installers throughout Berkshire, Oxfordshire, Hampshire, Surrey, Wiltshire, Somerset, Sussex and Dorset. Contact us now, and see how we could help you to improve energy efficiency, stay warmer and save money.


Make rooms cosier and save on energy bills with our leading solutions. We offer Solid Wall (External Wall) insulation, Cavity Wall insulation, Loft insulation and innovative Park Home insulation. We also offer external Render without insulation to refurbish and refresh the look of your property quickly and economically.

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Boilers and Heating

Waking up to a warm home, stepping into a hot shower -- even doing the washing up. We all rely on our boilers to keep the household running smoothly. With an efficient new boiler you can count on your heating and hot water every day, while also saving energy and money. We install only quality boilers from reputable manufacturers such as Worcester Bosch.

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ECO funding

Certain UK households can apply for an ECO grant that can fully-fund the cost of installing Loft and Cavity Wall insulation.

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Meet our experts

At InstaGroup we’re dedicated to continually building our knowledge, skills and hands-on expertise to give our customers the best results possible.

We’re also very much a ‘people business’, so it’s good to be able to introduce you to a few members of our team. Click below to meet some of the friendly experts working at the heart of our heating, insulation and installation business.

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