• Save 70% On Average On Your Electricity Bills
  • Accredited Installation Teams
  • Expert Advisors Ready To Help You

New insulation

A-rated insulation will increase your comfort levels, reduce noise pollution, and save you money on your heating bills. Whether you’re a homeowner, private tenant, business owner, or in charge of public buildings, we can help.

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  • Reduce your energy bills by 40%
  • Over five decades of experience
  • Expert advisors and nationwide coverage
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Smart insulation solutions

We’ve been installing all forms of home insulation across the nation for over five decades, and we pride ourselves on giving our customers the best advice and the most effective solutions to solve their insulation problems. Here are a few examples of the types of insulation you can install to protect and warm your home:

Wall insulation

  • Two types of wall insulation are available: internal and external
  • The typical cost of insulating a 3-bed semi internally is £8,500, whereas external insulation on the same property would cost around £12,000
  • Save between £240 and £930 on your energy bill once it’s been installed

Roof insulation

  • Most homes lose heat through the roof
  • We’ll conduct a survey and choose the best type of insulation for your property
  • Save around £225 a year off your energy bills in a detached house and £135 in a semi

Underfloor insulation

  • Reduce drafts and make your home cosy underfoot
  • A typical suspended floor installation could cost between £1,600 and £2,900. Solid floor insulation could cost much more
  • Save between £110 and £180 per year with underfloor insulation
  • Funding is available (subject to status) – apply now!

Fully Accredited Insulation Installers

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  • Gas Safe Register
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Trust the experts

Grant Store is a Vaillant, Worcester, and Idea-approved boiler installer, and all of our engineers are fully qualified and registered. With over 50 years of experience in recommending, installing, and delivering full aftercare services for a full range of boilers, there’s only one name to trust when it comes to new boiler installations: Grant Store.

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  • Save money on your heating bills
  • A warmer, more eco-friendly building
  • Accredited advisors and nationwide coverage

Why take our advice?

Grant Store is an expert in insulation, heating, and solar energy. With nationwide coverage, long-standing relationships with the biggest and most trusted suppliers in the business, and over 50 years of experience, our Trustpilot scores prove what we already know; that our 5-star beginning-to-end service is the best in the business.

How it works

House insulation technology has never been more effective than it is now, so it makes perfect sense to upgrade your home’s current insulation and reap the financial and physical rewards right away. To get an idea of what an installation might cost you or to see if you’re eligible for insulation grants, just follow these three simple steps.


Tell us about you

In just a few minutes, we can give you a competitive quote. We only need a couple of details to establish things like your home’s location, size, and power requirements. If you’re applying for first-time central heating grants or any other form of heating grant via the ECO4 scheme, we might also need to know your homeowner status and income to determine what you might qualify for.


We’ll find the best package

We’ll use our expertise and contacts within the industry to find you the best possible solution for your power needs.


Book your installation

All our professional installers are fully regulated and accredited, so you know you’ll be getting first-class service every step of the way on your renewable energy journey.


You must have lots of questions. We’ve answered some of the most commonly-asked questions about house insulation and home insulation grants here, but please speak to the team if you have any more.

What is the best type of insulation for a house?

Grant Store deals with three different types of insulation: roof, wall, and underfloor. All three have grants to help fund the cost of purchase and installation under the Government’s ECO4 scheme. If you’re not sure which method of insulation your home would benefit from most, then speak to a member of our expert team, and they’ll be happy to advise you further.

Can you insulate a house from the inside?

Yes. There are a number of ways to do this, including in the loft, underfloor insulation, and even insulating the cavity walls. Any of these methods of insulation will improve the thermal efficiency of your home, cut down on noise pollution, and reduce your energy bills substantially. If you have any questions about having interior insulation installed on your property, give us a call on 01942 918 844.

What is the insulation scheme for 2023?

ECO4, which is the latest iteration of the Government’s ECO scheme, is designed to deliver energy efficiency and heating measures to homes in Great Britain. It’s due to run until 2026, and there’s a whopping £4 billion in funds available. Learn more about ECO4 here.

Do I qualify for an insulation grant?

The easiest way to know if you qualify for home insulation grants is to read the list of criteria. Click here to learn more.