Rehau Synego
Rehau's uPVC window: 80 mm frame depth, 7 chambers and Uf 0.94 W/m²K.
Rehau Synego
SYNEGO is Rehau's uPVC window and door system: 80 mm frame depth, 7 chambers in the outer frame and 6 in the sash, glass up to 51 mm, and Uf 0.94 W/m²K in the MD version. The face of frame and sash together is 117 mm as standard; the data sheet gives a range of 109 to 175 mm, and 144 to 218 mm on a French casement (figures given by Janwillem on 14 September 2026 from the Rehau data sheet). It has been tested up to burglar resistance class RC3, one class higher than most uPVC profiles in our range. SYNEGO profiles carry Rehau's EcoPuls label: according to the manufacturer, the profile is therefore more than 40% recycled material — a claim we take from the manufacturer's brochure and have not measured ourselves.
Fixed window
Glass straight into the outer frame, without a sash. For a fixed light next to a door, a top light or a window that doesn't need to open.
Request my quoteTilt and turn window
Opens inwards: turn it to clean the outside, tilt it to ventilate, at 80 mm frame depth.
Request my quoteDoor
Back door or garden door on the same profile, opening inwards or outwards.
Request my quote26 layouts in Rehau Synego
From a fixed window to a sliding patio door: every layout this profile can do, each with its own page and a direct way into the configurator.
How much does a Rehau Synego uPVC window cost?
Our guide prices come from our own quote history, and this type has not come up in it for this profile. That is why there is no amount. Just request the quote: we work it out on your own sizes.
The price of a Synego window depends on four things: the overall size, the layout (fixed, tilt and turn, door), the glass and the colour. If there is an amount above this section, it is a guide price from our quote history — not a quote and not a final price; the configurator itself shows no amount. You put your window together, send it as a request, and the price for your sizes is in the offer — you'll hear from us within three working days. Prices in GBP, excl. UK VAT and import duties, which are payable on delivery. Hardware and any discount are in your made-to-measure offer. Delivery to the UK is quoted with your offer. We supply, we don't install, and we don't charge for installation.
Configure and request a quoteRehau Synego specifications
| Material | uPVC |
|---|---|
| Uf | 0.94 W/m²K |
| Frame depth | 80 mm |
| Outer frame width | |
| Sightline | 117 mm |
| Maximum size | × 2,500 mm |
| Maximum sash width | 1,600 mm |
| Size tolerance | ±2 mm up to 1 m, ±3 mm above that |
Move over the drawing to see the dimensions
Uf 0.94 W/m²K is the value for the MD version (centre seal) and the heat loss through the profile itself, not through the whole window — for that the glass (Ug) and the ratio between profile and glazed area count too. The face width is 117 mm as standard and, according to the data sheet, runs from 109 to 175 mm depending on the sash chosen; on a French casement 144 to 218 mm (figures given by Janwillem on 14 September 2026 from the Rehau data sheet).
This is a schematic cross-section, built from the measured frame depth, frame width and sightline. The chamber layout, seals and reinforcement are not measured — they come from the supplier's technical drawing.
The Synego compared
Same size, same specification. Only the profile differs.
| Specifications | Rehau Synego | Rehau Geneo | Gealan S 9000 Base |
|---|---|---|---|
| Material | uPVC | uPVC | uPVC |
| Uf | 0.94 | 0.86 | 1.10 |
| Frame depth | 80 mm | 86 mm | 120 mm |
| Sightline | 117 mm | 99 mm | 119 mm |
| Maximum size | × 2,500 mm | × 2,800 mm | 3,200 × 3,200 mm |
| Why something else | Same make and the same uPVC base, but the GENEO insulates slightly better — Uf 0.86 with thermal modules against 0.94 — at 86 mm instead of 80 mm frame depth, thanks to a core of glass-fibre reinforced plastic instead of steel. | Deeper (120 mm against 80 mm) and a slightly higher Uf (1.1 against 0.94), and a different profile look: the Gealan Base has a bevelled face at 15°, the SYNEGO a straight line without a bevel. |
Side by side, true to scale
The same scale for all three, so what looks deeper here is deeper.
Where does the Synego fit?
New build
Suitable, and with this insulation value one of the better uPVC profiles we offer.
Renovation
Suitable.
Listed buildings and conservation areas
Check with your local planning authority; on a listed building or in a conservation area, uPVC is less readily allowed than aluminium or timber.
Standards and Building Regulations in the UK
The fitting itself matters as much as the window. The Dutch fitting guidelines for uPVC windows and doors (VKG) come down to what good practice asks anywhere: the opening must allow an airtight, watertight, flat and square joint, and the loads on the window must be carried through fixings into the structure. We supply, we don't install, so this part is your installer's work.
Every window placed on the market in the EU carries CE marking to EN 14351-1: with it the manufacturer declares, on its own authority, that the product meets the essential characteristics in that standard, such as thermal transmittance, air permeability and resistance to wind load. It is a legal obligation, not a test by an independent body — and it is not a UK certification scheme, so we don't present it as one.
In England, Approved Document L sets the limit for replacement windows in an existing home at a U-value of 1.4 W/m²K or WER band B; for doors it is 1.4 W/m²K or DSER band C (more than 60% glazed) or DSER band D (other doors), and a replacement may not perform worse than what it replaces. That U-value is for the whole window (Uw). The Uf on this page is the frame profile alone, so on its own it doesn't tell you whether a window complies; the Uw of your window is stated in your offer. Replacing windows is notifiable building work in England and Wales: an installer registered with a competent person scheme, such as FENSA or Certass, notifies it, or you notify building control before work starts. Because we don't install, that sits with your installer. Scotland and Northern Ireland have their own rules. We don't give Building Regulations advice — check with your installer or building control.
Documents: data sheet
- Rovenzia data sheetPDF · 2 kB
- Rovenzia data sheet Rehau SYNEGO (PDF)not yet available
Know what you want? Put it together.
No form first: you watch your window take shape as you choose. The price follows in the quote, within three working days.
Rehau Synego: frequently asked questions
Can you deliver this profile to me in the UK?
We are a Dutch supplier and deliver to the Netherlands, Belgium, Germany and France. Delivery to the UK is quoted with your offer. Production time for Rehau SYNEGO is 6 to 8 weeks. You enter your postcode with your quote request. The route always ends at the quote request: not a guessed price, but a quote for your sizes. For this profile in any case: there is no automatic price yet, so your request always goes to the manufacturer for a made-to-measure quote.
What sizes can I order?
The Rehau data sheet gives a face width of 109 to 175 mm (117 mm as standard) and burglar resistance up to RC3. For the sash, Rehau gives a maximum of 1.50 × 1.40 m, and 1.60 × 1.70 m with a reinforced profile; a door leaf goes up to 1.00 × 2.30 m, reinforced 1.30 × 2.50 m. The widest opening part in our table is therefore 1,600 mm. Rehau does not give a maximum for the whole combined unit as a single figure; it does say that a profile length in white is at most 4.0 m and in another colour 3.0 m. The configurator enforces the sash limit; if your window is above that, ask us.
What is the lead time?
Production time is 6 to 8 weeks, the same for all our suppliers (our figure as of 15 September 2026). Delivery to the UK is quoted with your offer. The quote itself is quicker: you'll hear from us within three working days of your request; if it takes longer, you'll hear that within the same three working days, with the date it will be ready.
What exactly will arrive?
What you put together in the configurator is what arrives: the profile you chose, in your size and layout, with the glass and colour you picked. The summary — the last step before your request goes out — lists line by line what your configuration contains, and anything not listed there doesn't come with it. So you know before you unpack, not after. How and where it is delivered in the UK is set out in your offer.
Do you install it as well?
No. We supply, we don't install. That has one consequence you need to know: in England and Wales, replacing windows is **notifiable building work** under the Building Regulations. An installer registered with a competent person scheme, such as FENSA or Certass, notifies it; otherwise you notify building control before work starts. What we don't do is give Building Regulations advice — check with your installer or building control what applies in your situation.
Which glass and colours can I choose?
We offer six types of glass: HR++ double glazing (Ug 1.1), triple glazing (Ug 0.6), satin obscure glass in double and triple, and laminated safety glass class P4A in double (Ug 1.0) and triple (Ug 0.6). For colour there are through-coloured uPVC, dark and other foils for uPVC, and smooth or textured powder coating in a RAL colour for aluminium. Which combination is available on this profile is shown by the configurator — it refuses a combination that doesn't exist rather than quietly supplying it.
Can I send it back if I don't like it?
No. A window made to your measurements is made to order, and made-to-order goods fall outside the right to cancel. We say so before you order, not in the small print. In return, we take the risk out at the start: a size guarantee, a sample pack so you can see the colour in your own light, and a fixed procedure if anything is broken on delivery.
What if something is damaged on delivery?
Check it with the driver before you sign, and have any damage noted on the delivery note. Until the window is in your hands, damage in transit is **our risk**, not yours — we ship on DAP terms, so the risk stays with us until delivery. If you still find visible damage when you unpack, report it with photos **within two working days of delivery**. What you can't see on delivery isn't covered by that: for hidden defects your statutory rights apply unchanged.
Configure your window or door in Rehau Synego
Where we have a guide price, it is on the page, not behind a form — not a quote and not a final price; the amount for your sizes is in the made-to-measure quote.
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