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New Windows, Doors, Conservatories,
Extensions, Porches, Fascias & Soffits,
Conservatory Roof Replacements & More

New Windows in Knowsley
Our windows are much more than ``just a window!``
At Lancashire Double Glazing, we know the significance of high-quality windows that not only possess an appealing aesthetic but also offer outstanding insulation and security. Our assortment of UPVC and aluminium windows is specifically crafted to harmonise with any property in Knowsley and throughout Merseyside. Constructed within our state-of-the-art 60,000 square foot facility, our windows are manufactured in adherence to the highest industry standards, utilising cutting-edge machinery and techniques.
Our windows are designed with insulation in mind, effectively retaining heat while keeping the elements at bay, ensuring a comfortable living environment throughout the year. With a diverse range of sophisticated design choices, you have the opportunity to discover windows that perfectly enhance the visual appeal of your property. And the most remarkable aspect? Our windows require minimal maintenance, granting you the tranquillity and reassurance you truly deserve.
New Doors in Knowsley
UPVC FRONT, PATIO, AND FRENCH DOORS
First impressions are important, and there’s no better way to make a fantastic one than by installing a stunning new door from Lancashire Double Glazing. Whether you’re searching for an eye-catching front door, a secure back door, or a set of elegant patio or French doors, we offer a wide range of UPVC and composite door styles for you to choose from.
Our doors not only look beautiful but also provide excellent security and insulation, ensuring optimal protection for your home. We know that kerb appeal is important, and help Knowsley homeowners in creating a lasting impression with their new doors. We manufacture bespoke doors in-house, offering a variety of styles that range from classic wooden-look composite to contemporary UPVC. Our goal is to meet your specific requirements and perfectly complement your property.
Conservatories
UPVC CONSERVATORIES & ROOF SYSTEMS
Imagine the possibility of having a dedicated area within your own residence where you can entertain guests, host family gatherings, or simply unwind and appreciate the beauty of the outdoors. With a conservatory from Lancashire Double Glazing, this dream can become a reality. Our team takes the time to understand your specific needs and preferences, allowing us to create a bespoke conservatory or orangery that seamlessly integrates with your Knowsley property.
Whether it be a Victorian, Edwardian, or Gable-End designs or even a full length glass panelled modern conservatory, our team can create your dream, tailored to complement your home. We also offer an array of roof options to suit your preferences, allowing you to establish an ideal living area that can be enjoyed throughout the year.
Warm Roof System
WARM ROOF SYSTEMS
One of the most innovative home improvement solutions offered by Lancashire Double Glazing is their warm roof system. This revolutionary roofing technology is designed to transform existing conservatories and extensions, converting them into cosy, comfortable, and usable living spaces that can be enjoyed all year round.
Benefits of a Warm Roof System
Improved thermal efficiency: The multi-layered warm roof system effectively insulates the space, reducing heat loss and maintaining a comfortable temperature.
Year-round usability: With the warm roof system, you can use your conservatory or extension comfortably in both the colder and warmer months.
Enhanced aesthetic appeal: The warm roof can be customised with a range of tile, slate, or metal finishes to complement the style of your Knowsley home.
Increased property value: Adding a warm roof system can significantly improve the overall value of your home.
This innovative solution allows you to maximise the use and enjoyment of your conservatory or extension, transforming it into a truly valuable living space.
Extensions in Knowsley
CREATE THAT DREAM LIVING SPACE IN YOUR HOME
Are you yearning for additional space to entertain, unwind, or simply bask in the outdoors? Lancashire Double Glazing can bring your dreams to life with a bespoke house extension. We recognise that each Knowsley homeowner possesses unique requirements, which is why our extensions are tailored to perfectly match your property. Whether you desire a contemporary open-plan design, a cosy family room, or a dedicated dining area, our skilled team can create and construct the ideal extension that seamlessly blends with your current home.
Equipped with cutting-edge technology and luxurious features, your new extension will become the focal point of your Knowsley residence. Lancashire Double Glazing understands the importance of maximising natural light and maintaining thermal efficiency, so we incorporate elements like large windows, skylights, and our innovative warm roof systems to craft a space that is both visually stunning and energy-efficient.
Beautiful Orangeries in Knowsley
BESPOKE ORANGERIES
Orangeries are a popular home improvement option for homeowners in the UK, particularly in the North West region. Originating as ornamental garden structures used to grow citrus fruits, orangeries have evolved to become functional and stylish living spaces that seamlessly integrate with a home’s architecture.
Unlike traditional conservatories, which are primarily constructed of glass, orangeries feature a solid roof with large windows and glass panels. This design provides better insulation and thermal efficiency, allowing the space to be used comfortably year-round.
UK homeowners often use orangeries as:
- Elegant dining rooms
- Bright and airy garden rooms
- Relaxing sitting areas
- Versatile multi-purpose spaces
- Childrens’ play room
The solid roof construction of orangeries also makes them a suitable option for converting existing extensions or conservatories into more usable living areas.
Porches
ENHANCE YOUR HOME WITH A PURPOSE BUILT PORCH
More and more homeowners in Knowsley and throughout Merseyside are opting to improve the security and visual appeal of their houses by installing a custom-made porch from Lancashire Double Glazing. Our bespoke porches come in a range of styles, shapes, and sizes, allowing us to tailor them to your specific requirements and preferences.
Whether you prefer a flat roof or a single or double-hipped tiled roof, our porches not only provide an additional layer of security for your home but also add extra space and character to your entrance hallway, front, or back. Let us assist you in creating the perfect porch that complements your Knowsley property.
Quick Quote
PROJECTS IN Knowsley
CASESTUDIES
WE HAVE YOU COVERED
Knowsley, LANCASHIRE AND BEYOND
Lancashire Double Glazing experts also cover Kirkby, Whiston, Huyton, Rainford, and throughout the North West area.
An increasing number of homeowners in Knowsley and across Lancashire are choosing to enhance the security and aesthetic appeal of their homes by installing a custom-designed porch from Lancashire Double Glazing. Our tailor-made porches are available in various styles, shapes, and sizes, allowing us to meet your specific needs and preferences.
Whether you prefer a flat roof or a tiled roof with a single or double-hip design, our porches not only offer an extra layer of protection for your home but also add additional space and charm to your entrance hallway, front, or back. Let us help you create the ideal porch that perfectly complements your Knowsley property.
CUSTOMER REVIEWS
I have recently been let down with an appointment that had been arranged 10 days in advance for someone to come & look at the latest issue I have with a cold draft coming through my front door to which I received a phone call at lunch time on the same day they are due to attend to say they can no longer attend and that it will be another 10 days before someone can attend unless there is a cancellation, they think it is acceptable to leave customers with drafts coming through their front doors on the coldest months of the year because they are too busy with other jobs, they claim on their website to provide an excellent after care service well I wouldn’t call this an excellent after care service, we shouldn’t have to accept continuous repeated issues with our doors every summer/winter yet alone to have to wait so long for someone to attend to look and fix the issues when they do arise
I wouldn’t recommend this company especially in terms of after care, looking at other recent reviews it seems they are busy concentrating on new installations over after care of previous ones
The install team of Mark, Andy, and Craig, were brilliant. They were polite, respectful, and kept mess to a minimum. Cleaning up after themseves before leaving each day. Whole job took just 5 days, as promised.
I can't speak highly enough of them. The experience far exceeded our expectations.
Would recommend LDG. Thank you to all involved.
I had a very poor experience with Lancashire Double Glazing. I was sold what I was told were 60-minute fire-rated windows and was charged accordingly. I later discovered the windows installed were actually only 30-minute rated, which is completely unacceptable given the safety risks and the price.
When I raised the issue, the company tried to avoid taking responsibility and attempted to get out of putting things right. For something as important as fire safety, this behaviour is shocking.
Based on my experience, I would avoid this company at all costs. If you’ve already had fire windows fitted by them, I strongly recommend double-checking the ratings, as they may not be what you were sold or paid for.
I would particularly like to thank Steve for providing me with affordable quotes and Mark for his professional installation of our house doors.
I am very satisfied with the price, quality, and professional installation services provided.
There were a few glitches on the way especially navigating around my work commitment etc but it worked out in the end. The incorrect window was put in my back door but Owen sorted it out for me straight away.
John & Ethan did an excellent job installing the windows and John was brilliant with Ethan as his apprentice, very impressed
The salesman Kevin was very knowledgeable and helpful.
Also, As opposed to the many door/window sales that come knocking, it was very nice to walk round their showroom to see and feel the different window options (and ask lots of questions) rather than making a decision from a brochure.
Will defo use them again for future window fits.
Would highly recommend
Now im selling my house I realised I never received Fensa certificates, chased them. At first they said one lot hadnt been registered but it would be and I would receive the certificate shortly now they were registering it. When I said I didn't get a certificate for the other job they said I would have to buy one directly from Fensa, when I tried it turned out they hadn't registered that job either, why they claimed they had I dont know but it added a week on the hold up of getting a new EPC as I waited for them both.
Very pleased with the end product.
Carly and her team were first class from start to finish and I would highly recommend anyone to use this company for all there building and glazing needs. Top class service, thanks again Carly!
We would definitely recommend them to other people.
For reference I have built and converted homes for over 30 years now and never had these issues before.
I would fully recommend LDG to anyone.
Each window and door I needed was a different and bespoke size, and every one arrived on site and fitted perfectly, so much so that I am currently in the process of placing new orders with LDG for phase 2 of my build. Very competitively priced and also with a quick turnaround, they were delivered on time.
Highly recommended!
This is a simple 3m by 3.5m extension — two windows, a lantern skylight, and a set of double doors. We were told it would take a matter of weeks. Instead, we've had long periods with no one on site, poor communication throughout, and 3 months on there are still key elements left incomplete.
We're still waiting on:
Tiling to the exterior shell and steps.
Electrical issues (switches not working, spotlights incorrectly positioned).
Damage to the paintwork on the newly installed door and the door not shutting correctly.
Window and door frame finishing.
It has been up to us to chase subcontractors, manage timelines, and clean up after people — none of which we expected when paying a professional company to do a turnkey job.
I’m posting this review in the hope it spurs LDG into finally delivering on the project. We were promised a stress-free, quick build. It has been anything but.
Have used LDG for years, but their after sales service seems to be sadly lacking.
Had windows fitted no problems, but in less than a year one pane had failed, now here comes the comedy show of errors/not being bothered.
First engineer visit to assess fault- no show.
Second visit, faulty window measured and replacement confirmed.
Third visit, cancelled on day of appointment due to faulty replacement (days holiday taken)
Fourth visit, wrong sized window pane brought by fitter.( another days holiday taken)
Please reach out for a solution, starting to think that LDG couldn’t find organise a drinking session in a brewery.
Highly recommended
No high pressure sales technique just good advice and a good price,
Surveying done professionally, both John and Calum fitted the windows to a very good standard, turned up when they said they would and tidied up afterwards.
The plasterer and the sealer were pretty good also.
Would highly recommend LDG.
Signed up and paid deposit, salesman said doubted planning permission needed.
Then huge delay till go ahead.
Builders and fitters great.
Then all went wrong with plasterer that could not plaster!!
Totally ruined.
Then 2 guys came on separate occasions to rectify mistakes.
Still not great.
Cost us alot of money.For a botch job.
Then chased by manager ti pay final amount, No discount and slapped with extra £600,survey fee.
Our conservatory still not right.
Very sad, to put this review together.
THINK BEFORE YOU ORDER FROM
LANCASHIRE DOUBLE GLAZING.
SIMPLE CORDIAL BUSINESS TASK OF INFORMING -UPDATING A SICK PENSIONOR. THAT HE WILL BE HONOURED AND HAVE HIS INSTALLMENTS ON SCHEDULE . ABSOLUTE DISGUSTING ATTITUDE BY LDG.
Highly recommend
The installer Harry was just as professional. Arrived on time, got the job done in a timely manner and left the place clean after. All round great service and would recommend them to anyone asking about doors or windows.
The window fitters Paul and Lauren were excellent. Professional, friendly constantly keeping me in the loop of what they were doing on the day and making sure I agreed. They are an asset to the company. If you want windows/doors just go to the best and that really is LDG. Outstanding!!!
We asked for 30 min notification prior to turning up on three separate occasions and not once did that happen. One day they didn't turn up at all. Once installed they looked great from a distance but when you got closer it was a mess. I'd probably be hopeless at using silicone - but so was whoever did this one. I think 3 out of 6 windows needed silicone taking off and redoing. After the panelling was added and re silicone it did look so much better and they wasted no time in getting things sorted out once notified.
The welds on the frames are somewhat visible where the white has bled on the top of the grey. Most frames covered in transfer . Which all eventually can be filled in with a paint pen and the transfer can be rubbed off with a bit of elbow grease. They shouldn't really leave manufacturers before this is done but that's just my opinion. Some frames were scraped and scratched and handles scratched . These were flagged and these was rectified.
Workmen we're polite and friendly and very easy to get on with. They cleaned up after themselves every shift and worked hard to get things done.
The back door wouldn't lock at all. Had to leave completely unlocked overnight until someone could come and check it. Had to be readjusted and is now fine.
One of the panes of glass on the patio door 'shattered' during installation so we waited around 4 days after the installation was complete for a replacement. Once again no 30 min warning just turned up at the door. As soon as this piece of glass was fitted - like literally 2 whole minutes of leaving the house - the phone then rang from the office asking to settle the invoice . Which is completely and utterly rude to be asking for money after all the crap that went wrong without checking the pane.
Good job we didn't pay as the replacement glass we got had a massive scratch on the inside of the double glazing to which we waited another 2 to 3 days for that replacement.
Finally almost 3 weeks from start date we was at 100% , the windows and doors look brilliant now and it was a definite improvement over how it was before we started. Ultimately when you spend this much money you just expect things to be perfect and right the first time. I can't help but think we could have saved a couple thousand pounds and got the same result if not better somewhere else. It's unfair to give any lower than a 3 and I can't find reason to give any more also.
So I would say use at your own peril but please please check the work over and over again. In 20 years time - if they last that long - I probably wouldn't use this company again unfortunately and I wouldn't recommend to a friend or family . Maybe we just got a bad wave of hiccups based on the other reviews but that's my personal opinion.






