The Negative Synseal Reviews Explained

Google Synseal Reviews or Warmcore Reviews and the results are not positive.  A visit to the Synseal Group Reviews on Trustpilot reveals 93% rated as ‘bad’ with just 7% rated as ‘average’. Homeowners contacting our website also ask if they should steer away from Synseal’s products after finding negative Synseal and Warmcore reviews online.

This article addresses some of the negative reviews and importantly, also explains why Synseal, in many cases, is unfairly criticised. Read our full review of Synseal Warmcore doors for in-depth information too.

synseal reviews
Synseal offers the Warmcore suite of bifolding doors, sliding door and windows.

Information and advice about Synseal Reviews online.

Most of the negative comments centre around the Warmcore range of bifolding doors. On the one hand,  the Synseal reviews on Trustpilot are small in number, compared to over 500 reviews for Origin’s range of windows and doors. On the other hand, some of these reviews are so bad, we think they could unfairly impact sales of the Warmcore product.

Furthermore, many excellent businesses fabricate and install Warmcore are potentially losing out on good business as a result of these reviews.  Even more pertinent is some companies set up entirely on the back of the Warmcore product when it launched in 2015.  Synseal is a substantial systems company with some industry leading brands under its belt.

Moreover, is the Warmcore product good and are the negative Warmcore reviews and Synseal complaints justified?

The Warmcore System is a quality, fit-for-purpose product.

First of all, Warmcore remains fit-for-purpose and not sub-standard.  Our comprehensive review of the Warmcore bifolding door explains more about Synseal’s product.  The Warmcore system is an innovative hybrid system using a combination of a big PVCu thermal core with aluminium on the inside and outside faces.  As a system and as a concept, Warmcore is good.  However, like all door and window systems, it comes with certain characteristics within its design, manufacturing and installation.

The substantial thermal core provides excellent U-Values with standard glass units, where other systems need enhanced glass or triple glazing.  However, this is a PVCu core and entirely different from the polyamide core used in most aluminium systems.  It is also not as forgiving as polyamide meaning extra care in both fabrication and installation.

When Warmcore is incorrectly made and incorrectly fitted, the product is potentially problematic, such as bowed door sashes and even the aluminium capping coming off the thermal core.  We must stress this is not a design fault.  Any product not made to a good standard risks problems as a result.

Above all, the extrusions, thermal core, powder coating, components and hardware all meet or exceed current British and European Standards. Warmcore also meets Secured by Design for security as well as the relevant classifications for air wind and water and a 10 year guarantee.

Understanding the negative Synseal Reviews.

With many years experience in the fabrication and installation of windows and doors, we can see that the negative reviews around Synseal are seemingly as a result of incorrect fabrication and poor installation.  The Warmcore system itself is not entirely to blame.

Synseal, to their credit, responds to these reviews and stresses they do not manufacture the product. Synseals only designs and supplies the materials. It is Synseal’s network of nationwide fabricators making Warmcore. Also to their credit is Synseal acknowledging early versions of Warmcore had issues and these are now addressed.

Just like every other major systems company Synseal’s role is supplying bar lengths and accessories to their fabricators. They also provide training, tooling and overall support.  Schuco, Reynaers, Smart Systems, Aluk, SAPA Building Systems for aluminium work in exactly the same way.  Liniar, Rehau, Kommerling, Eurocell, Duraflex and others with PVCu also work in exactly the same way.

We can also tell you that every systems company like the aforementioned invests substantial sums in bringing a product to market.  Design, testing, independent certification, training and supply is an expensive and complicated process.  No systems company sets out to design a bad product. And Warmcore is not a bad product.

Furthermore, as with any new product, manufacturers and installers regularly working with it, provide feedback to the systems company. As a result, they continually improve their product throughout its life cycle.  Assuming Synseal supplies correctly extruded profiles to their fabricators, it is fabricators and installers apparently letting the company down from the online reviews.

Synseal works just like most major systems companies.

There are also comments relating to Synseal charging customers for site visits to inspect their product.  We can tell you they are not unique in this and other systems companies also charge.  The role of the systems company in the overall supply chain is rarely dealing with homeowners directly.  In these reviews, Synseal does clarify their role and how they work.

So we stress again, that the negative Synseal reviews are putting the blame on the designer of the product and the raw material supplier.  This is unfair when the negative experiences are down factors, many of which are clearly outside of Synseal’s direct control.  However, it does appear that Synseal needs to improve how it supplies Warmcore materials.

We understand that Synseal do fabricate some of their products as well, so for balance presume some of the negative reviews relate to doors coming out of the Synseal factory.

Our advice to Synseal is this:

  1. Get actively involved in not only assessing some of their fabricators better but also work closely with the homeowners to achieve a satisfactory conclusion.
  2. Provide better training to fabricators and installers of Warmcore.  Many of the problems would never arise with a correctly made and fitted product.
  3. Synseal must encourage these customers to leave further reviews once problems are fully resolved and the customer is happy.
aluhaus alufold bifolding door
Alufold Warmcore bifolds offer unique features you won’t find on other products.

Looking to buy Warmcore? Choose your fabricator and installer carefully.

Above all, do your research and check out who makes your Warmcore doors.  A good Warmcore supplier makes a fine product or sources it from a good fabricator. We stress again, Warmcore, like any other door and window, needs precise fabrication and correct installation.

The door and window industry is a competitive space with many different ways to buy windows and doors. There are some fabricators selling at rock bottom prices and reflected in the quality.  There are also excellent fabricators making outstanding products of the highest quality with a 1st-class service all round. Therefore, any product is only as good a who makes and fits it.  Importantly, the professional Warmcore fabricators and installers do not experience the issues raised by the negative Synseal reviews.

This is where we can help you.  Use our contact form on this page and get in touch.  We can put you in touch with Warmcore fabricators or suppliers that not only fully understand Warmcore, but they also make it well and know how to fix it.

One such Warmcore fabricator and installer working nationwide is Aluhaus in Nottingham.  Not only do Aluhaus make Warmcore well, but they’ve also re-engineered and enhanced it providing even more features and benefits over the standard Warmcore. 

Synseals’s Warmcore range is a good product and the negative Synseal reviews should not frighten you to death about the consequences of buying it. Contact us for further information, advice or where to buy.

If you make or fit Warmcore, please leave your comments below with your experiences.