How strong are your castle walls?
Your home is your castle. Put in your postcode to see its official energy rating from the GOV.UK register, where it loses heat, and the window, door and roof upgrades that would lift it. New ratings and bill savings are estimates. You get a written quote on the day of your free survey.
Your home's energy rating
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2. A free survey at a time that suits you. We measure up and check your home.
3. A written quote on the day. No obligation.
What your castle's rating means
Every Energy Performance Certificate (EPC) gives a home a score, worked out by an accredited assessor, and a band from A to G. A is the most efficient and cheapest to heat. G is the least. Much of the difference comes down to how well the walls, windows, doors and roof keep the heat in.
The score sets the band. Lift the score and the band follows.
- A92 plusMost efficient
- B81 to 91
- C69 to 80
- D55 to 68
- E39 to 54
- F21 to 38
- G1 to 20Least efficient
Five ways to strengthen your castle walls
Heat leaves a home through its weakest points. These are the jobs we make and fit that tackle them. Your result above shows which ones your own certificate points to.
- 01
Windows
Old single glazing or tired early double glazing lets heat straight out. New double glazed uPVC windows with modern sealed units and draught seals keep it in.
Our windows - 02
Doors
A draughty front or back door is a gap in the wall. Insulated composite and uPVC doors close it, with strong multi-point locks too.
Our doors - 03
Warm roofs
Swap a glass or polycarbonate conservatory roof for an insulated tiled roof with a plastered ceiling. The room stops roasting in summer and freezing in winter.
How warm roofs work - 04
Loft and roof insulation
Warm air rises, so a thin or missing layer in the loft costs you. When we fit a warm roof on a conservatory, we insulate to today's standard.
Our roofing - 05
Roofline ventilation
Vented soffits let the roof space breathe, so damp doesn't build up and soak your loft insulation. It won't add points by itself, but it helps your insulation keep doing its job.
Fascias, soffits and gutters
Your actual new score depends on your home. A qualified assessor works it out when a new certificate is done. The tool above gives an estimate only.
Turn a cold conservatory into a room you use all year
A glass or polycarbonate roof is the weakest part of many homes. We take it off and fit an insulated, tiled warm roof in its place, with a plastered ceiling inside. From outside it looks like part of the house. Inside, it feels like a proper room.
- Out goesThe glass or polycarbonate roof that lets heat out in winter and traps it in summer.
- In goesAn insulated roof with real tiles, made to measure for your conservatory.
- InsideA smooth plastered ceiling, ready for lights and paint.
- Worth knowingMost conservatories aren't counted in an EPC, so a warm roof is about comfort and a room you use more, not a new band.
From Doncaster, fitted across England.
We make our Praesidio™ doors in our own Doncaster factory, and our own installers fit every job. Never subcontractors, and no guesswork prices online.
- Check your ratingUse the free energy check above. It reads your real certificate from the GOV.UK register.
- Free surveyA surveyor visits at a time that suits you, measures up and looks at the whole house.
- Written quote on the dayYou get your quote in writing on the day of the survey. No obligation.
- Our own team fits itFitted by our own installers, never subcontractors, with a 10-year guarantee on uPVC windows, doors and roofline.
Energy ratings come from the GOV.UK energy certificate register. New ratings and bill savings on this page are estimates, not a new EPC or a guarantee.
Questions people ask
Where does my energy rating come from?
From the government's Energy Performance Certificate register. Most homes sold or rented out since 2008 should have a certificate, and each one lasts 10 years. If yours doesn't have one, or it's out of date, we look at your home at the free survey.
What do the EPC bands A to G mean?
The certificate gives your home a score and a band. A is 92 or more, B is 81 to 91, C is 69 to 80, D is 55 to 68, E is 39 to 54, F is 21 to 38 and G is 1 to 20. The higher the score, the cheaper the home should be to heat.
Which upgrades lift a rating the most?
It depends on your home. Your certificate lists what it found, such as single glazing or a thin loft, and the energy check above shows the AWR upgrades that match. Windows, doors and roof insulation are common ones. A surveyor confirms what makes sense at your free survey.
Does a warm roof improve my EPC?
Most conservatories aren't counted in an EPC, so a warm roof on a conservatory usually won't change your band. What it does is turn a room that's too hot or too cold into one you use all year. See how warm roofs work.
Are the figures on this page exact?
No. The rating comes from your real certificate. The new rating and bill savings are estimates to help you plan. They aren't a new EPC or a guarantee.
How much will the work cost?
We don't guess prices online. A surveyor measures up at your free survey and gives you a written quote on the day. No obligation.
Do you cover my area?
Yes, if you're in England. We're based in Doncaster, where we make our Praesidio™ doors, and our own teams fit across England. See the areas we cover.
How do I book a free survey?
Call free on 0800 612 2127, finish the energy check above, or book online.
Ready to make your home a castle?
Book a free, no-pressure survey. A local AWR surveyor measures up and leaves you a written quote on the day.
- We bring our showroom to your home
- Written quote on the day
- Our own fitters, never subcontractors
- Doors made in our Doncaster factory
- No hard sell