Gerda Doors

Welcome to J&J Windows and Doors, where the principles of family are combined with over three decades of experience in delivering high-quality Windows, Doors, and Conservatories. While the structure of your home is built with bricks and mortar, it’s the doors and windows that add personality and allure.
At J&J, our mission is to provide a wide range of products made from superior materials and installed by reliable experts. We’re committed to avoiding aggressive sales strategies or gimmicky promotions. Our team is made up of skilled advisors who customize recommendations for every customer’s specific requirements. We place a high value on customer happiness in all our endeavors.
Our dedication to the superior quality of our products is the reason we’ve selected Gerda as an Approved Installer. Their outstanding engineering skills and emphasis on security are in perfect harmony with our pledge to excellence.

Welcome to J&J Windows and Doors, where the principles of family are combined with over three decades of experience in delivering high-quality Windows, Doors, and Conservatories. While the structure of your home is built with bricks and mortar, it’s the doors and windows that add personality and allure.
At J&J, our mission is to provide a wide range of products made from superior materials and installed by reliable experts. We’re committed to avoiding aggressive sales strategies or gimmicky promotions. Our team is made up of skilled advisors who customize recommendations for every customer’s specific requirements. We place a high value on customer happiness in all our endeavors.
Our dedication to the superior quality of our products is the reason we’ve selected Gerda as an Approved Installer. Their outstanding engineering skills and emphasis on security are in perfect harmony with our pledge to excellence.
Contact us today for your FREE quote!
What's Different about Gerda Doors?.. Everything!
Aesthetically Appealing
- Colour matched external cill as a standard.
- Gerda doors are available in widths ranging from 840mm to 1130mm, offering a broader selection compared to other doors that typically start at 950mm wide.
Engineering Excellence
- Faced with steel & aluminium for superior durability and resistance.
- RC3 lock with 13 locking points, you can also upgrade the fuhr lock on the Thermo Prime Range.
- Pre-drilled holes supplied with a fixing kit for easy and convenient installation.
Unmatched Security
- State-of-the-art security features with burglary resistance accreditations PAS24 as a standard.
- Revolutionary Smart Tedee Lock controlled by your phone.
Excellent Thermal Performance
- Exceptionally energy-efficient, thanks to a unique thermal division that enhances the natural insulation.
- U- values exceed the current and forthcoming Building Regulations with values of 0.74W/1.3m2k.


What's Different about Gerda Doors?.. Everything!
Aesthetically Appealing
- Colour matched external cill as a standard.
- Gerda doors are available in widths ranging from 840mm to 1130mm, offering a broader selection compared to other doors that typically start at 950mm wide.
Engineering Excellence
- Faced with steel & aluminium for superior durability and resistance.
- RC3 lock with 13 locking points, you can also upgrade the fuhr lock on the Thermo Prime Range.
- Pre-drilled holes supplied with a fixing kit for easy and convenient installation.
Unmatched Security
- State-of-the-art security features with burglary resistance accreditations PAS24 as a standard.
- Revolutionary Smart Tedee Lock controlled by your phone.
Excellent Thermal Performance
- Exceptionally energy-efficient, thanks to a unique thermal division that enhances the natural insulation.
- U- values exceed the current and forthcoming Building Regulations with values of 0.74W/1.3m2k.
Gemma Langley2024-11-01 Fantastic job just completed by J&J replacing all of our windows, front door and installing some cladding across the front of our house. Dan offered us a very competitive quote with no hard sell in the slightest, and was on hand to answer questions and offer advice and suggestions at all times. The fitters were thorough, tidy, punctual and paid great attention to detail, and the office team ensured all ran smoothly with clear communications and updates. An entire team of lovely people who genuinely care about what they do! We’re so happy with the results and will recommend J&J without hesitation. Thanks again to all. Car Guru2024-08-01 Had a repair carried out under guarantee from 5 years ago, no quibble ! Very impressive x Andy Weller2024-07-30 Used the Double Glazing doctor to repair a misted window and back door lock. Dan from JJ Windows recommended Darren who was brilliant, efficient and cost effective. After first hand experience I'll definitely use them again and recommend them to my own clients. Thanks again. Karen Wilson2024-07-01 Would recommend J&Js! Recently had patio doors fitted and cladding on the front of our house , Really pleased with the standard of work from all the team ,first class ! Richard who fitted cladding goes above and beyond, Thankyou ! Steve M2024-06-27 J&J were recommended to us. As mentioned by other reviewers, they genuinely have a great team. They are easy to deal with and there is zero hard sell. I am also very satisfied with the quality of the products they install. What has impressed me most is the excellent customer service both during and after the work had been completed (and after they had been paid). I would strongly recommend them. Andy Dawson2024-05-09 Great friendly company who really know their stuff. fitted a new front door for me and they've done an amazing job. Nice and neat and left no mess whatsoever. also what I was originally quoted is what I paid, no hidden surcharges. absolutely first class service and I highly recommend. thanks Carolyn Stone2024-05-07 Great service from start to finish… Dan helped us with our options as we’ve got sash windows, he was really helpful… the fitting of all windows took 4 days, Neil and Tommy were fantastic, always smiling they really seem to love their job, cleaned up after themselves, just love my new windows cannot fault this company N Ward2024-05-01 We recently had 3 windows and a front door installed by JJ Windows. Everything was great from start to finish including communication regarding the initial quote and when the work would be undertaken. Great work by the installers Tommy, Dan and Lee! We are thrilled with the finished result. Md Nizam2024-04-18

Contact Us
Here at J&J Windows ensuring our customers are happy is our main focus. We strive to exceed expectations to make sure each client is pleased with our service. Reliability and Confidence Our dedication to excellence is more than just a promise. Opting for J&J for your Gerda door setup means you’re assured of a smooth process and durable outcomes that improve both the safety and appearance of your residence.




Contact Us
Here at J&J Windows ensuring our customers are happy is our main focus. We strive to exceed expectations to make sure each client is pleased with our service. Reliability and Confidence Our dedication to excellence is more than just a promise. Opting for J&J for your Gerda door setup means you’re assured of a smooth process and durable outcomes that improve both the safety and appearance of your residence.











Gerda Front Door Range
Gerda’s four front door models Optima, Premium, Prime & Altus stand out with their superior design features and numerous specifications compared to mainstream aluminium front doors, surpassing competing products like the S200 Spitfire Door, Origin, and Hallmark offerings. Whether you opt for the entry-level Optima 60 or the top-tier Altus, Gerda front doors consistently deliver these outstanding features.
Gerda front doors, like other high-quality options, are meticulously crafted to offer a visually superior aesthetic compared to front doors that rely on the standard aluminium door concept, incorporating decorative panels in place of glass.


Gerda Front Door Range
Gerda’s four front door models Optima, Premium, Prime & Altus stand out with their superior design features and numerous specifications compared to mainstream aluminium front doors, surpassing competing products like the S200 Spitfire Door, Origin, and Hallmark offerings. Whether you opt for the entry-level Optima 60 or the top-tier Altus, Gerda front doors consistently deliver these outstanding features.
Gerda front doors, like other high-quality options, are meticulously crafted to offer a visually superior aesthetic compared to front doors that rely on the standard aluminium door concept, incorporating decorative panels in place of glass.