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Anthracite grey composite back door

Composite Back Doors

The perfect security upgrade for the back or side of your home…

Composite Back Door Benefits

Options to suit your home

  • Enhanced Security
  • Durability
  • Customizability
  • Resistance to Environmental Factors
  • Reduced Maintenance

Customer Reviews
You Can Trust

Loved by our customers
Joanne SherlockJoanne Sherlock
12:37 12 Nov 23
Absolutely a super job well done.Would fully recommend this company.
mike reganmike regan
12:03 29 Oct 23
Great service and professionalism .I am pleased with every aspect from pre-sales to completed job . George arrived when he said he would , gave a great price and the team that came to fit were great lads and very thorough . Will be recommending this company to anyone i know who wants windows . A lot of tradespeople today lack the service level needed , not George and his team . Id give 6 stars if i could.
Tom WithersTom Withers
19:27 20 Oct 23
Great service, really pleased with the fitting of the window. Fabulous workmanship, friendly and professional. We would definitely use them again and would certainly recommend them.
Chloe TownsendChloe Townsend
11:01 15 Oct 23
Absolutely brilliant service. George and his team fitted my windows with exceptional precision and care. Very speedy service and great price too. Number one recommendation to me and I wouldn’t use anyone else in the future. Continued success in the future of your business ????
Bob LomaxBob Lomax
10:12 08 Oct 23
Good prompt service, great product installed very neatly by friendly staff. Well recommended.
Ambeya ButterworthAmbeya Butterworth
14:08 03 Oct 23
A big thank you to George and his team for a fantastic service from start to finish.We replaced 2 large bays and 2 windows in the rustic profile and we are so happy with them. There was a small issue with a few panes of glass which George fixed straight away and made sure we were totally happy.If you are looking to replace your windows and you'd like the peace of mind that the company will have excellent communication, be there to answer questions, be priced competitively, turn up when they say, take pride in their work, be hard working and have super manners... you have found the one!We highly recommend George and his team and wouldn't hesitate to use them again in the future.Thank you again ????
Ruth BarklemRuth Barklem
08:39 29 Sep 23
George was quick to respond to my enquiry and was able to pop round and provide a quote within a matter of days. He gave us an honest review on the type of door we wanted and his knowledge made us change our minds on what was best. The integral blinds are wonderful.He was happy to fit a new cat flap in the kitchen door and disposed of the old door and window at the end of the job. We are very happy with our new kitchen door and window.We asked George to provide us with a quote for bi-fold doors at the back of the house and will be asking him to do this job sometime in the future.
John BlundellJohn Blundell
16:37 27 Sep 23
We required a new front door and made a very good decision to choose GM Windows & Doors to supply and install. Throughout George and his team have been very helpful, friendly and professional. I honestly do not think we could have chosen a better company. Excellent workmanship, attention to detail and cleanliness. Can definitely recommend and will be our first choice for future work.
J WJ W
09:26 03 Jul 22
I had received quotes from a few different company’s, G M Windows & Doors Ltd was reasonably priced and they were by far the most professional and took their time to discuss through all the options explaining everything in detail. I decided to go ahead with G&M because of the professionalism they showed and from their 5 star reviews.Throughout placing the order and installation, there was good communication and updates sent on a regular basis and any questions I had were responded to promptly. (I had a lot of questions but was never made to feel like I was mithering them)I had new front and back doors and all my windows replaced. One window needed a new lintel, and this was all arranged by the company ( I had the option to use my own builder). I decided to use their associated builders. He also was very professional taking videos and photos of everything he had completed.The team were professional and arrived on time each day with a courtesy text before arrival.They worked hard to ensure everything was completed to a high standard.
Caroline Taylor-SmithCaroline Taylor-Smith
17:41 01 Jun 22
A fantastic company! So pleased with the new windows, back door and composite front door which I have had fitted.From the first appointment George was extremely knowledgeable and helpful. His attention to detail was second to non.I needed so much advice and he had an endless amount patience answering all of my questions. From recommending the best window design most appropriate for the age of my terrace house right down to the finer detail of choosing a font displaying the house number in the double glazed fanlight above the front door!He has a great team. Ashley and co were all professional, friendly and hard working. Their workmanship was to an extremely high standard.So pleased with all the new windows and doors fitted and highly recommend ⭐️⭐️⭐️⭐️⭐️
Eric LoweEric Lowe
08:45 16 May 22
I contacted this company as I needed a composite front door, the gentleman, the owner, said he would WhatsApp me, which he did. I sent him everything he needed, address, door details etc and he sent a brochure via WhatsApp. A couple of days later he messaged asking if we had chosen a door, which we had, and he said he would give us a price in a couple of days, nearly two weeks later I'm still waiting. If he's not interested I would prefer him to tell me and not just leave me waiting. ????
siobhan burkesiobhan burke
11:46 26 Apr 22
Great fast service. Gave quote quickly , ordered and fitted within a few days even with Easter Bank Holiday being in the way. Cheaper than others I tried in the area and window looks great. They sent a text when they were on their way to save staying in all day, and were nice polite lads too. Would definitely recommend and will use again in the future ????
Samira MohamedSamira Mohamed
22:21 21 Apr 22
It was a very professional service, our fitters Ashley and Ben were the most polite fitters that I have ever come across. Both polite and extremely well mannered! Less fuss, less mess and a brilliant finish. Door was of excellent quality and the team led by owner George is an excellent team, fabulous communication skills and explained everything thoroughly prior to fitting so we knew what to expect. Well done and thank you!
Simon SalisburySimon Salisbury
17:53 21 Mar 22
Excellent service and very professional. Highly recommend G M Windows ????
Livio BellusciLivio Bellusci
20:16 22 Feb 22
Highly recommended, Very professional work at a very very reasonable price. Really pleased with service and will definitely use again.
David ThorntonDavid Thornton
13:13 08 Feb 22
After GM Windows and Doors completed a job next door we were so impressed by the quality of workmanship we decided to go straight to them and did not wish to go anywhere else! George and his team have been fantastic throughout, from quotation stage through to installation we have been kept fully informed of the process. The whole house has been transformed with new anthracite grey double glazed windows, new french doors and replacement composite front and back door. George took the time and effort to source a particular front door that was not normally part of his portfolio. The quality and price were fantastic and the installation team were all polite, friendly and showed attention to detail. The difference in warmth and noise reduction has been unbelievable. I would have no hesitation in recommending GM Windows and Doors to anyone. You won't be disappointed, we are over the moon. Thank you George and Team, a job well done.
Ryan GreenhalghRyan Greenhalgh
12:49 16 Dec 21
Excellent, professional service of the highest order. From enquiring to completion of the works GM Windows & Doors were brilliant with great workmanship, quality and value for money and friendly, polite and professional tradesman. I can't recommend them enough.
peter geelanpeter geelan
08:28 14 Dec 21
I contacted George to replace all our UPVC windows because all of his Which! reviews were 5 stars. He accommodated us despite a very busy order book. At the survey, he and Ashley listened to our needs and provided helpful, friendly advice on the design and colour of the windows, specialist glass etc. They were never pushy. George advised us to get another quote to demonstrate how competitive his prices are. His quote was so competitive, we went for doors as well as windows. The work was undertaken over 3 full week days at scheduled times. The fitters, led by Ashley, were punctual, extremely conscientious and experts at installation. They were also decent, friendly lads, who kept us posted on progress. The finished job is remarkable - the house looks amazing and is much warmer and quieter. The attention to detail on the interior against tile and wall is excellent, George is a perfectionist. He also provided Building Regulations papers and an insurance policy unsolicited. We are delighted and neighbours have been complementary and asked for George's contact details. I would recommend G M Windows & Doors Ltd without hesitation and have complete confidence in this consummately professional business.
Tom PrinceTom Prince
20:01 08 Dec 21
Highly recommend this company, did a great job of fitting my door. I had 3 quotes and this company was the easiest and cheapest to deal with, the door is brilliant and they did a great job of fitting it, changed the complete look of my house.
Emma CollisEmma Collis
12:57 29 Oct 21
GM provided and installed a new window for me the lads were fab the job was perfect! Very professional, very neat and tidy and would highly recommend these guys!
Corey SouthernCorey Southern
13:22 21 Aug 21
Full set of windows and new rock door installed by George and the team.Each member of the team was polite, hardworking and honest. I would highly recommend this company to anyone who wants a truly professional experience from start to finish.
Jen RuddJen Rudd
05:34 21 Aug 21
Update: had another window fitted by George’s team in July 21 and same excellent service. Thanks again GM Windows. I won’t be going anywhere else for my windows and doors in future!George and his team were professional and efficient from start to finish. I enquired about a replacement front room window and within a few days George had completed a quote and booked the production of the window on approval of the price quoted. He kept me up to date with the progress of the production and booked in the fitting as soon as it was ready to install. George and his apprentice did a brilliant job of fitting the window. They arrived promptly on site, ensured carpets were protected and cleaned up leaving an immaculate end result. I’ve already asked George to quote for more windows! Thank you guys.
Amber johnstoneAmber johnstone
07:13 07 Aug 21
Excellent service from George and his team! Very efficient and clean, friendly staff and very polite, the work done was fantastic and I can finally see through my windows again!( had glass replacement in conservatory) We had a new composite back door fitted which is excellent quality and looks fantastic! Nothing was too much trouble, defo recommend and will be using his services again if needed in the future!
Jason GaynorJason Gaynor
11:57 05 Aug 21
Absolute pleasure to have such a professional and polite bunch of lads make our house look so great. They go that extra mile to make sure it is done to perfection. The price was great and worth every penny. Thanx for a job well done. Definitely wouldn't go anywhere else.
Alice MartindaleAlice Martindale
21:58 01 Aug 21
Reliable team with a high quality level of service. Very quick in responding to my texts and phone calls, even if it was weekend. Extremely impressed with the finished result. Cheers guys!
Nazmin BegumNazmin Begum
19:32 16 Jun 21
Service was great. The doors look brilliant. All 3 of them worked really hard. Completely faultless. Highly recommended if you need new doors or windows. Thanks again
Obydur RahmanObydur Rahman
08:32 15 Jun 21
Top class service from start to finish. We are extremely happy with the installation of our Rockdoor and Window which was measured and fitted inch perfect. We are full of praise for George’s work ethic and commitment to delivering his best, for this we are highly appreciative and therefore would definitely recommend using GM Windows Doors Ltd!
Excellent company run by George. High quality and attention to detail. Work done properly no shortcuts. All his staff he brings are all working to high standard too. Would highly recommend.
Teresa WanTeresa Wan
15:28 08 Jun 21
Fantastic products, service and communication!HIGHLY RECOMMENDED!Extremely satisfied with the service and products provided. The pricing are competitive and the quality are spot on! I had several quotes and had done my research then decided to go with G M Windows and Doors because George is professional and the products are fantastic. The communication from George throughout was first class. Nothing was too much to ask from George and his team. The fitters who came were polite, clean and tidy who completed as promised to a very high spec workmanship. I would highly recommend the company and the people over a large well known brand. G M windows are a brand of their own! ????
Billy AinsworthBilly Ainsworth
18:29 25 May 21
What can I say, a fantastic service from start to finish. George and the boys are a credit to themselves.With the recommendations on what we were looking for from George we are more than satisfied with the end product. Quality, Service and Value are what every customer looks for.GM Windows provided this for us, we would highly recommend them to our friends and family such was the professionalism of service. Thanks for all your hard work ????????
Angela FallowsAngela Fallows
16:23 23 May 21
Would like to thank George and his team at G M Windows and Doors Ltd for our fabulous new windows and door.Fitted quickly with no mess, very polite and helpful service. Excellent communication highly recommend G M Windows to all our friends.
Sarah StephensonSarah Stephenson
11:17 15 May 21
I had been left with a poorly fitted front on a new build house (not their work). George and his team reassured me they would be able to correct it. From start to finish they were amazing could not recommend them enough. Lovely bunch of lads with the knowledge to get the job done. The perfectionism and tidiness was second to none. Thank you!
Rachel HemmingsRachel Hemmings
07:08 15 Apr 21
From start to finish it was an amazingly professional service! The fitters were polite, professional and amazingly tidy!Always got back to messages and fab communication!Will definitely be using again
Paul GrangePaul Grange
19:11 07 Apr 21
Turned up to quote on the same day of asking, was courteous and knowledgeable. George helped with design ideas, and promptly provided a very competitive price. On the day of installation, two polite and hard working lads turned up and did a great job of the installation. Wouldn't hesitate to use again, or recommend to anyone.
Elisha DuddleElisha Duddle
09:44 24 Mar 21
From start to finish George has been brilliant. Excellent communication throughout. His work is absolutely spot on, definitely a perfectionist as the other reviews say! Wouldn’t hesitate to recommend. We’re over the moon with our new front door.
Michelle ParkinsonMichelle Parkinson
09:42 24 Mar 21
George was very professional from start to finish, he assisted us with our choices, he was very knowledgeable. Great communication throughout. Superb products which look fantastic, we were very pleased with the overall service we received from start to finish. Thanks George for a stress free purchase
Giorgia StevensGiorgia Stevens
12:29 20 Mar 21
I would 100% recommend G M Windows & Doors. I first messaged George for a quote after recently seeing some of his previous work. George fitted new windows and it has made an amazing transformation to our house. George was very reliable, professional and offered good advice. We have just rebooked him for more work.Thank you for all of your hard work.
Liz TristLiz Trist
11:52 18 Feb 21
Having used George and his team to fit windows and doors on another property I had no hesitation in asking him to replace a front door and back door on my own property.Extremely happy with the result and as always a friendly, professional work ethic. Everyone who works there gets on with a quiet professionalism.When I need doors or windows again I will have no hesitation in going straight to G M Windows and doors.
Jess bulloughJess bullough
15:54 03 Feb 21
Found GM Windows online from reviews and from the start they have been amazing. Very quick response and extremely professional.George came out to measure up and quote for a new window and French doors within a day and I can only say it was the best price out of many companies. Plus for the job that they have done I couldn’t be happier and could not honestly fault themWould recommend them to anyone honestly these are the guys to go too!
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White composite back door
Black Composite back door
Grey composite back door

Composite Back Doors Colour Range

colour-rockdoor-white

White

colour-rockdoor-black

Black

colour-rockdoor-anthracitegrey

Anthracite Grey

colour-rockdoor-slategrey

Slate Grey

colour-rockdoor-agategrey

Agate Grey

colour-rockdoor-chartwellgreen

Chartwell Green

colour-rockdoor-emeraldgreen

Emerald Green

colour-rockdoor-rosewood

Rosewood

colour-rockdoor-mahogany

Mahogany

colour-rockdoor-lightoak

Light Oak

colour-rockdoor-irishoak

Irish Oak

colour-rockdoor-rubyred

Ruby Red

colour-rockdoor-sapphireblue

Sapphire Blue

colour-rockdoor-cream

Cream

Anthracite grey composite back door

What makes a Composite Back Door so secure?

A Composite Back Door is designed with security in mind, incorporating various features to ensure a high level of protection. The use of advanced materials, such as a solid core and reinforced outer layers, contributes to the door's overall strength and resilience.

High-quality hardware, including hinges and locks, enhances the overall security of the door. Precision manufacturing and professional installation ensure a secure and tight fit within the door frame, minimizing vulnerabilities. These security features collectively make Composite Back Doors a reliable choice for homeowners seeking both style and peace of mind.

 

Solid no glass composite back door in anthracite grey

What makes a Composite Back Door thermally efficient?

A Composite Back Door achieves thermal efficiency through a combination of advanced materials and design features. Its composition, often including a solid core of insulating materials, minimizes heat transfer. The use of multiple layers, such as a timber or insulating foam core encased in a durable outer layer, enhances insulation. Tight seals and precision fitting reduce air leakage, maintaining consistent indoor temperatures. These doors are designed to meet or exceed building regulations for energy efficiency, ensuring a comfortable and environmentally friendly living space.

More Composite Back Doors Benefits

Solid modern composite back door in all black

Aesthetic Variety

Chartwell green door slab with white frame composite back door with clear glass and antique black door handle

Environmental Friendliness

Rosewood brown compoiste back door with everglade privacy glass

Versatile

Solid white composite back door no glass

Sound Insulation

Sizes

Door styles with larger pieces of glass, such as the Windsor and Classic, are limited by how narrow they can be made due to the glass unit. Whereas doors with narrow pieces of glass, such as the Cottage Spy View, can fit nicely into smaller door apertures.

Most doors in the UK are built to similar sized door apertures, so if you’re just looking for a standalone door, a Composite Back Door should comfortably fit.

For large door apertures, size can always be added to the side of the doors, or head of the door, by using frame extensions or side frames which is a popular choice.

Contact us to find out more about the maximum and minimum sizes for our Composite Back Doors doors.

Accreditations & Standards

Every Composite Back Door we use meet the standard set by the British government, ensureing you get the best durability, protection, and efficiency out of your door.

 

We are also proud to say all of our Composite Back Doors are designed, engineered and built right here in Britain.

What Happens Next

If you cant find an answer in our frequently asked questions section, try contacting us below:

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