If the door has been damaged by misuse we can look to repair the damage or if required replace a full panel. Misuse however is not covered by our guarantee so a call out fee will be applicable, plus the costs for any materials.

Your door could just need a simple adjustment. If you're operating the door properly and it's catching at the bottom simply e-mail aftersales@expressbifolds.co.uk with a description of the issue along with your job number and site postcode and we'll arrange for an engineer to come to site.

No, we only offer our comprehensive warranties and aftersales service to Express customers.

During driving wind and rain, it is possible for some water to accumulate in the bottom track.  All of our systems have built in drainage to allow this water to drain from the product.  If at any point, you are worried about the volume of water in the track, please contact our Aftersales team.

This is project specific and is normally undertaken by your builder or landscaper.  Should you need assistance or advice, a member of our experienced Installation Team will be happy to advise you on this if required.

As with any material, Aluminium will expand slightly in very warm weather.  Where this occurs, your product may feel slightly stiffer to operate until the weather cools down in the evening.  If this prevents you from operating your product, please contact our Aftersales team.

If lubricating the lock cylinder doesn't help then this normally means that a small adjustment is required.  Should this occur, please contact our Aftersales team.

Sometimes people close the sliding door with two much force and the master door is bouncing off the outer frame slightly, which makes the lock catch. When closing the door, slide it gently against the outer frame, this will prevent the panel from bouncing off, and will then lock easily.

No, the track is designed to hold water, as long as it is not coming into your property this is nothing to worry about. The tracks of our sliding doors are very deep so they do hold water in heavy rain, but the system is designed for this and eventually the water will work it's way through the doors drainage system.

If lubricating the lock cylinder doesn't help then this normally means that a small adjustment is required.  Should this occur, please contact our Aftersales team.

As with any material, Aluminium will expand slightly in very warm weather.  Where this occurs, your product may feel slightly stiffer to operate until the weather cools down in the evening.  If this prevents you from operating your product, please contact our Aftersales team.

This is project specific and is normally undertaken by your builder or landscaper.  Should you need assistance or advice, a member of our experienced Installation Team will be happy to advise you on this if required.

The benefits of the venetian integral blinds we offer are light control, shading and privacy but they don’t offer total black-out.

Our Solar Blind and Electric Blind remotes use a CR2430 battery.  If your remote is displaying a bAtt sign or .8.8 then the battery needs to be changed.

Yes, please feel free to contact our Aftersales team who will be happy to support with this.

Both essentially do the same job, the only difference is that Certass is a none profit organisation

No, a new build home or extension needs to be signed off by building control, this formal process covers the installation of the doors and windows & confirms that they conform to building regulations.

This is no problem at all, simply e-mail aftersales@expressbifolds.co.uk with the information requested by your building inspector and our team will provide the information requested.

Once your installation has been completed and the final balance has been paid, you will receive your guarantees via email within 14 days.  Your guarantee is live as soon as the final balance is paid.

We do not offer a guarantee in addition to the original ten years.  Subject to correct use and care the lifespan of the products can easily exceed the guarantee duration so we can still resolve any issues with the products, but these will be subject to a call-out charge plus the cost of any components that may be required.

Your product guarantee is transferable with the associated charges detailed below.  All transfers are subject to a site inspection to confirm that your product has been operated and maintained properly.  We need written consent from the original contract holder prior to discussing this with a new homeowner.  Once signed off the new user will receive a maintenance guide and maintenance pack. Charges for guarantee transfers are wholly dependent on total contract value; £250 +VAT – Site inspection charge (On all transfers)

£350 +VAT – Contract value £9,999.99                                                                                                                              £700 +VAT – Contract value £10,000.00 – £24,999.99                                                                                                  £1250 +VAT – Contract value £25,000+

We recommend applying maintenance or silicone spray to all moving components three to four times a year.  We recommend avoiding oil based lubricants such as WD40.

No, the only service works that is required for your products is to ensure that the tracks are kept clean of any debris and moving parts are lubricated with maintenance spray or a silicone based lubricant.

The profile is not designed to be load bearing so we advise against doing this.

This is a protective tape that is applied to every Skyview roof.  Once your plaster work has been completed internally, the plastic tape can be cut with a sharp stanley blade and peeled away.  In the winter months, a small amount of heat may be required to soften the adhesive and allow the tape to peel away easily.

Condensation on the external pane of your glass is indicative of a glass unit working very efficiently (keeping the cold on the external side of the property).  Where this occurs, this is not a fault with the glass unit.

When double glazed units are manufactured and transported, this is done with large suction cups. These cups contain a very small amount of oil that ensures the suction pad does not cause damage to the face of the glass.  Occasionally, some of this oil residue may remain on the glass and will not condensate at the same rate as the rest of the glass unit.  This residue can be cleaned with a good quality glass cleaner or will naturally weather away over time.

We can obtain replacement keys at a cost, however it is often cheaper and far quicker to arrange for keys to be cut at a local hardware store.

We do not expect to see this.  However where there is a build up of condensation we recommend managing the airflow within the property to allow moist air to leave the room.  Examples of doing this could be opening a trickle vent or leaving a a window on a night-vent.  The most common rooms that we see condensation are Bedrooms, Bathrooms and rooms with a lot of water and moisture such as kitchens and utility rooms.

We do not recommend screwing any objects into the profile as this can cause unrepairable damage and invalidate your guarantee.  We would recommend attaching any external components with double sided tape.

As with any material, Aluminium will expand slightly in very warm weather.  Where this occurs, your product may feel slightly stiffer to operate until the weather cools down in the evening.  If this prevents you from operating your product, please contact our Aftersales team.

If lubricating the lock cylinder has not resolved this, it normally means that a small adjustment is required.  Should this occur, please contact our Aftersales team.