Our windows and doors are all custom-made to your exact requirements. Additionally, they are available in a range of versatile design options.
With over four decades of experience in construction, our founder Mick Haren and our team ensure flawless installations for your peace of mind.
Designed with performance in mind, our windows and doors offer exceptional thermal efficiency ensuring they meet even the new stringent building regulations.
Improve the look, feel, and utility of your house with our premium Origin aluminium sliding doors, now available in Thornbury. These sliding doors boast top-tier design and provide an exceptional finish to any building endeavor. Moreover, our sliding doors feature among the thinnest sightlines on the market, enabling vast glass expanses for panoramic views with minimal obstruction.
Once again, in Thornbury, you can find an array of door options in both uPVC and aluminium. Composite doors have emerged as a sought-after choice in recent times, boasting an array of advantages. Their modern security and insulation attributes are particularly noteworthy, owing to their substantially thick cores, typically around twice as robust as those of a uPVC door. However, uPVC doors themselves present numerous benefits. They are an economical solution, now transcending their erstwhile reputation as a lesser-quality option, with strengths and energy efficiency that can compete with materials like aluminium. Regarding aluminium, for rear entrances, choices such as bifold doors or sliding patio doors are superb, given aluminium's inherent durability. This material enables the frames to be more slender yet remain robust, a winning feature for many Thornbury homes.
Get in TouchThe slim sightlines of our aluminium sliding doors allow for an influx of natural light into your living space, creating a brighter environment.
Our sliding doors are completely bespoke. You can choose from over 150 RAL colours as well as dual-colour options, accessories, and glazing.
Our sliding doors feature robust hardware and quality locking systems for maximum protection. Additionally, they have undergone extensive tests, enabling them to be PAS24 compliant and Secured by Design accredited.
Our sliding doors are designed with thermal efficiency at the core of every design. Featuring a polyamide thermal break, they help to retain heat so that you can enjoy a comfortable home.
Discover our gallery illustrating the excellent sliding doors by Thornbury's finest. From the sleek OS-20 versions boasting ultra-thin 20mm sightlines to the sturdy OS-77 styles, observe our aluminium sliding doors' ability to transform properties. These photographs showcase the flawless integration between interiors and the outdoor environment, broad glass expanses, and a variety of personalisation features on offer. See for yourself how our sliding doors amplify natural sunlight and blend seamlessly with both contemporary and classic homes.
Contact UsColour Options
Our sliding doors are available in an array of colour options. Choose from over 150 RAL colours as well as dual-colour shades to match your interior and exterior decor.
Anthracite Grey
Black Grey
Silver Metallic
Hipca White
Jet Black
Light Silver Metallic
Slate Grey
Golden Oak
Natural Oak
Hardware Options
Add the finishing touch to your sliding door by selecting from a range of quality hardware options including handles and hinges.
Combined Bar Handle
Bar Handle
D Handle - Stainless Steel
D Handle - Anthracite
D Handle - Black
D Handle - White
Downloads
Unlock the potential of our sliding doors by accessing a range of downloadable brochures.
At Sandymount, we recognise that your perfect sliding door combines stunning aesthetics with exceptional performance. That’s why we offer a variety of aluminium sliding door options from Origin in four distinct ranges: OS-20, OS-29, OS-44, and OS-77. For an incredibly minimalist look, the OS-20 features an ultra-slim sightline of just 20mm, maximising natural light and creating a seamless connection to your outdoor space. If you prioritise thermal efficiency, the OS-29 (29mm sightline) and OS-44 (44mm sightline) offer exceptional insulation.
Finally, the OS-77 boasts a robust 77mm sightline, ideal for larger sliding doors where structural integrity is paramount. No matter your budget or style, Sandymount has an aluminium sliding door to perfectly complement your Thornbury home.
Revamp your living space with ease using our user-friendly sliding doors, perfectly suited for homes in Thornbury. These doors glide effortlessly along a bespoke track, offering a smooth transition to invite new possibilities into your abode. The tracks are discreetly hidden to ensure safety, and for an added touch of elegance, you have the option to recess them into the floor, achieving a flush finish that integrates seamlessly with your home decor.
Improve your home’s comfort with our aluminium sliding doors. Our doors are capable of achieving incredibly low U-values and fantastic energy ratings, keeping energy bills low and comfort high. For year-round efficiency, our sliding doors are designed to prevent heat loss and they come fully equipped with weathertight seals for complete weather protection.
Discover why Sandymount's sliding doors are the perfect choice for your home. From maximising light and space to offering superior security and thermal performance, our doors combine style with functionality. Read on to learn more about our market-leading aluminium sliding doors.
Contact UsNot at all! Our sliding doors are incredibly low maintenance. All you need to do is ensure that the tracks are kept clean for seamless operation.
At Sandymount, every door is tailor-made to your exact requirements and personal preferences. The cost will be determined by the style, colour, and any decorative features that you choose.
Aluminium is a naturally strong material that can withstand harsh weather conditions and attempted break-ins. Our sliding doors feature multi-point locking systems, sturdy frames, and security glass for added peace of mind.
Absolutely! Our sliding doors are available in a range of configurations and design options. With so many options available you’re bound to find the perfect sliding door for your home or project.
We are proud partners of award-winning manufacturer Origin, meaning we can offer you a range of aluminium bi-fold, sliding and front doors, along with high-quality aluminium windows. Our team has completed Origin’s product knowledge and installation training, meaning you’re in safe hands when you choose Origin products for your next home improvement project.
Whether you’re a homeowner looking for inspiration for your own home or a developer or architect looking for examples of the kind of results we can achieve, then take a look at some of our recent work. At Sandymount, our team is committed to delivering the highest standards of quality installations.
View project galleryDedicated to delivering complete customer satisfaction, our customers’ feedback is very important to us. Have a read of some of our customer testimonials below.
Raffaele Dilandro
Mick and Michelle proved to be delightful partners throughout the entirety of Phase 1 in our project. With a pressing deadline and the need for a comprehensive service covering both supply and installation, effective communication and regular updates were crucial for successful completion. We decided on the Origin Slimline Window (OW-70) for its premium quality, backed by a reassuring 20-year warranty. The installation process was executed seamlessly, and we are pleased with the windows’ aesthetic appeal. The professionalism exhibited by our installation team was commendable. Without a doubt, we will be considering this company again as we move into Phase 2!
Steve Goodwin
Had a great experience on a large install project of Origin windows and Bi-folds. Amazing product and the service has been superb. We had Max round a week ago for some minor works and he was a real credit to the Company, very friendly and helpful, clearly wanted to make sure we were happy. Would definitely purchase again from them.
Stuart Firth
Really efficient installation of bi-fold doors. Staff were polite, friendly and helpful. Michelle was always prompt with replies and information. Highly recommend.
Fiona Simpson
Would highly recommend sandymount windows & doors. We had a stunning composite door put in a few weeks ago and are really happy with it. Great value for money.
S. Head
Matt and Ben always helpful, product (origin) best bi-folds on the market, from order to delivery very efficient sometimes arriving within 48 hrs now that is great service. We have used them several times and they have never let us down and look forward to using them again in the future. Rob Hall of Hall & Jones Windows, Doors & Conservatories Ltd.
Richard Hollamby
Most helpful company and I am very pleased with my new door; Sandymount made an excellent job of installing it.
Lisa Carter
Fantastic service from Sandymount Windows and Doors. From ordering to delivery it was a quick process and I was kept up-to-date on the delivery date. We are over the moon with our Juliette doors in our new loft conversion.
A. Wild
Mick Haren and his team were excellent from start to finish with our new Origin Bifold doors. It was during difficult times in early 2021 when work commenced, but they worked safely and responsibly. The tradesmen were polite and professional and their work was to a high standard. Michelle Woodham was in contact throughout the project updating us on deliveries arriving, who was coming and what work was to be carried out. Options were talked about during the survey, for specific requirements we were looking for so we were able to have the perfect glass and frames sizes for our space to how we wanted. Origin OB49. I would highly recommend Mick and his team to carry out any project, as we are extremely happy with the doors once they were completed.
Darron Henn
Having decided upon the Origin Bifold and window system I contacted Instadoor after getting their name from the Origin website. Being located in Worcestershire, I had initially contacted an Origin Partner nearer home but to be honest the response was very poor whereas Instadoor were responsive and dealt with any questions concerning specification quickly, and the distance was not an issue. The survey and installation went very well and their guys were clearly very skilled in handling the Origin product.
One of the glass panels was found to be cracked and they replaced it a week later together with final cosmetic finishing touches. Overall I was very satisfied with Instadoor and would certainly consider them again for any future projects.
Nick Maceky
Had quick responses and helpful support from Michelle and Max came out to fit the doors. There was a bit of an issue with measurements and framework but he and his colleague explained what was needed thought about solutions and worked hard but cheerfully to fit the doors to the highest standard. Max was keen to point out he would have to make some compromises due to the frame but worked hard to do a job to the best standard achievalbe. The work looks great and it always helps when there person fitting them is polite, honest and professional. Great job Max thanks for your hard work.
Tim Sisson
Excellent Service. I ordered a new premium product from a top brand and Instadoor were there to make sure the order was accurate and delivered on time. Although there were a few teething problems with the manafacturer’s new production line, Instadoor chased and organised them to ensure my project timelines were not affected. Much appreciated.
Sam Jones
Great service. Reliable, trustworthy and rectify any issues without quibble.
