The answer is a lot: by losing 40% of heat through uninsulated areas, you are reducing your chance of home comforts, and increasing the cost of your energy bills.
Insulating your home with spray foam can give you up to 50 percent savings on your monthly bills, starting instantly, so why not book a survey with your installation team to see how much it costs to spray foam your house?
Will Spray Foam Improve My House?
Energy efficient homes are valued £10,000 more than those that are deemed non energy efficient. Recent research also indicates that over 70% of buyers consider energy efficiency as a main buying point.

The more quotes you get, the more likely you'll get the very best deal on offer. Needless to say, it pays to shop around!
How Can I Get The Very Best Deal On Offer?
Top Tip No.1: ALWAYS Shop Around
We all live increasingly busy lives, and, consequently, setting aside time for multiple appointments and surveys can be feel like a considerable challenge. Yet settling on the quote from the first contractor you come across is inadvisable for several reasons:
Firstly, unless you have substantial knowledge of the spray foam industry as a whole, it's difficult to discern whether the quotes price is good value-as well as whether it's an accurate representation of the average cost as a whole.
Secondly, if a contractor is aware that they are the only installer quoting, they're far less likely to get as sharp with their pencils as they should do. When they're aware that they're one of many companies quoting, they know they need to fight harder to secure your custom-and will offer a far more competitive quote to achieve this aim.
Thirdly, the more quotes you get, the more likely you'll get the very best deal on offer. After several quotes, you should get a solid grasp of the price you can expect to pay, and can then start to focus on the additional plus points offered by each company in turn.
Bear in mind that a legitimate company should always offer a 25 year warranty, so check that this is offered when each contractor comes out to quote.
Top Tip No.2: Ask For Recommendations
One of the best ways of sorting the cowboys from the credible contractors is to ask for recommendations. Friends, family members and neighbours all provide invaluable advice on key aspects of a company's service. You'll also be able to see the results they received first hand when you come to visit.
They'll also be able to inform you not only of the job itself, but the standard of aftercare they obtained. A trustworthy contractor always goes above and beyond the call of duty. They should clean up after themselves, and also make several follow up calls later down the line to check that the installation is still performing effectively.

Many homeowners fail to realise that you will get a far better price for bulk orders, rather than tackling one task at a time
Top Tip No.3: Consider Several Renovations At Once
When it comes to renovating our homes, we usually have more than one project in the pipeline-yet cost constrictions mean that, on the whole, we tackle one task at a time.
Although it's easy to understand the thinking behind this approach, what many homeowners fail to realise is that you will invariably get a far better price for bulk orders.
In general, spray foam companies specialise in more than one product, so chances are, if you are also considering upgrading your windows in the not so distant future, you will receive a far more competitive quote than if you were to quote each project proposal one by one.
Top Tip No.4: Seek Out Seasonal Discounts
Despite the fact that spray foam installation takes place all year round, there are several primary times when seasonal discounts come to the fore.
An obvious contender is Christmas; the majority of home improvement companies close for two weeks during the festive season meaning they are keen to close deals in early December, rather than wait until they reopen in January.
Consequently, you'll find that the majority of companies offer seasonal discounts in the run up to Christmas, making early December a good time to secure a competitive deal.

In general, home improvement companies worth their merit offer a variety of payment plans to suit your circumstances
Top Tip No.5: Enquire About Paying In Instalments
For those on a tighter budget, paying for spray foam installation in whole can seem prohibitive. However, what most homeowners fail to realise is that this doesn't have to be the case; in general, home improvement companies offer a variety of payment plans to suit.
A popular option among property owners is to pay for the project in monthly instalments. This helps to stagger the cost, making it far more manageable rather than paying in full upfront.
How Much Does it Cost To Spray Foam a House?
LogicFoam can start at £27 square meter (40mm application), but prices vary dependant on factors such as the correct thickness to achieve required U-Values, remedial works & location . We recently appeared on Grand Designs where we insulated a tree house 40 ft up in the air.
This project cost the home owners £13,000 and was completed in the day. You can watch a short clip of our appearance below or watch the full Grand Designs episode here. If you want to know how much it cost to spray foam a house in your area, contact our sales team. or call 0800 1700 636.