Your first choice for 'green' home Improvements

Our Services

HomeSun specialises in ‘green’ home improvements that cut energy bills and cost customers as close to £zero as possible.


We work with homeowners, landlords and their agents, councils and others in the property world. In each case, we’re looking for best fit, best value solutions that are good for our customers and our environment.

There are still a short time to apply for the Government’s Green Homes Grant Vouchers. There are £5,000 or £10,000 vouchers available for any homeowner in the England – which could mean free property improvements!

We deliver quality work, excellent customer service and we’d love to hear from you.


Free air source heat pumps

Homeowners in England can have air source heat pumps installed and save £100s on heating bills…

Free park home insulation

We are one of the few companies in England meeting Park Home certification requirements…


Wall, floor and roof insulation are important first steps to cutting your heating bills and improving comfort levels in your home.

The energy saving products delivered by HomeSun alongside schemes such as the Green Homes Grant, are helping UK homeowners and landlords to cut their heating bills as well as their carbon footprint.  We are proud to be helping make homes more sustainable and to tackle fuel poverty.

Frequently Asked Questions

Important General Information

What is the Green Homes Grant Voucher?

The Green Homes Grant Voucher Scheme was announced by Rishi Sunak, Chancellor of the Exchequer in July 2020. There is a budget of £2billion.

If you are a homeowner on income-based or disability benefits, you are eligible for a £10,000 voucher to cover the full cost of ‘green’ home improvements – insulation and air source heat pumps for example – designed to cut your energy bills and carbon emissions.

All other homeowners as well as landlords are eligible for a £5,000 grant to cover two-thirds of the costs of work.

Is this a Voucher or a Grant?

It is called The Green Homes Grant Voucher Scheme. So it is both a grant and a voucher!

How do you apply?

You’ll need a quote for the job you want done, and your installer has to be registered as a Green Homes Grant installer and with TrustMark. That’s HomeSun. Just put your details in to our website form or call on 020 7887 2280.

What’s the hurry to apply?

If everyone applied for the £10,000 voucher, that’s only 200,000 homeowners that will be helped. But England has over 22 million households. So you need to apply before the vouchers run out.

How much can you save?

This is free money from the government – so you are literally saving £5,000 or £10,000 on these home improvements. Not only that but these ‘green’ measures will help you save money on bills. If your home isn’t insulated, heat is seeping out through the walls and roof. With insulation you could be cutting your heating costs by a third, depending on the type of home you live in. If you live in a Park Home, insulation will save you even more! And then there are alternative energy systems like air source heat pumps. These use free heat from the air to warm your home, cut your carbon footprint and shave £££s off your heating bill.

What if you rent a property?

It’s the owner of the property that is entitled to a grant. The grants can benefit tenants – because insulation brings down your bills. Our Installers will need written permission from your landlord before going ahead with the work. Council or Housing Association tenants should contact their local Council or Housing Association directly.

Which home improvements can you get?

You can apply for a Green Homes Grant to get one of the following primary measures:

  • Insulation: Solid wall, cavity wall, under-floor, loft, park home, or roof insulation
  • Ground or air source heat pump
  • Solar thermal panels

You can even get another grant, but only if it’s from this list of secondary measures, and the bill for the work can’t be more than the bill for the primary measure+:

  • Windows: Double glazing, triple glazing, or secondary glazing (all of these only qualify if they’re replacing single glazing)
  • Energy efficient doors
  • Heat controls: Appliance thermostats, hot water tank thermostats, hot water tank insulation, smart heating controls, zone controls, delayed start thermostats, and thermostatic radiator valves
  • Draught proofing

+ The way this works: if you got a Green Home Grant of £300 for your cavity wall insulation costs, and you’d like to get double glazing which was costing £2,000, you’d qualify for another £300 grant.

HomeSun and You

What will HomeSun do?

HomeSun is a registered Green Homes Grant installer. We specialise in insulation – including Park Home external wall and underfloor insulation – and air source heat pumps. We’ll let you know which voucher you are eligible for (£5,000 or £10,000) and we’ll then organise any necessary survey and quote, so that you can apply for the Voucher. Ultimately, we’ll also organise the work and your guarantee certificates.

The idea is to make this as easy as possible for you.

Will you ever have to pay anything?

It depends what you are looking for and your home. But if you qualify for a £10,000 voucher, the idea is to do as much as possible (everything) within that price. If you do not qualify for £10,000 and you’d still like to go ahead, you’ll be able to use your free £5,000 voucher toward the work and pay for the balance (with the £5,000 vouchers, the Government will cover two thirds of the cost of work and you cover one third). In the long run, everyone saves money because ‘green’ improvements like insulation cut your energy bills.

Do you guarantee your work?

We provide all the relevant guarantees for our work. Park Home insulation for example, comes with a 25 year CIGA guarantee.

Park Homes

What can you insulate?

Walls and underfloor. The insulation traps the heat inside your home, preventing it from escaping through your walls, so your heating bills are lower. External wall insulation will also improve the appearance of your property!

What other benefits are there from external wall insulation?

  • Stops draughts
  • Gives you a constant temperature – because you aren’t loosing heat through the walls
  • A cooler home in summer – traps cool air inside
  • Increased comfort – the constant temperature means you don’t have to keep fiddling with the thermostat
  • Removes chilly damp atmosphere that can build up in a colder Park Home
  • Helps to eradicate damp, mould and mildew
  • Gives you total weather protection
  • Improves sound resistance – reduces noise from outside and helps privacy because it will muffle your sounds too
  • Easy and low maintenance with a 25 year guarantee
  • Looks fabulous

Cavity Wall Insulation

What is a cavity wall?

The external wall of a house is constructed of two masonry (brick or block) walls, with a cavity and held together by metal wall ties.

Are all houses suitable for cavity wall insulation?

No. There are many homes which have solid brick walls and they need different treatment. If the house is not of traditional construction, it is unlikely to be suitable. This would include a timber frame, for example, and stone.

How will I know if my house is suitable?

You can often tell by the brick pattern…

But don’t worry. We will send a surveyor to assess your property. This will involve a drilling a small hole and inserting a borescope (like an in-wall camera).

Will the drilling make a mess of my walls?

Our installers will fill any holes with mortar to match the existing finish as closely as possible.

Is there a guarantee?

Yes. Cavity & external wall insulation come with an independent 25 year guarantee.