Quality uPVC & Aluminium Double-Glazing Plympton
Landmark specialises in the installation of uPVC and Aluminium windows, Doors, and Double-Glazing in Plympton and the surrounding areas for both homes and businesses.

Trust Our Experts for Double-Glazing in Plympton
With over 35 years in the double-glazing industry, our independent, family-run business brings vast expertise to uPVC and aluminium installations. Whether you’re planning new glazing for a development or replacing existing uPVC or Aluminium Windows and Doors, we’re ready to reinvent your spaces. We proudly serve all Plympton postcodes (PL7). So, whether you live on Lower Farm Road, St Maurice Road, George Lane, or anywhere else in Plympton, we’ll be there for you.
At Landmark, we prioritise personalised service for our customers. We don’t employ salespeople, so you’ll never be pressured to buy. When you request a quote, Mark, our Director, will personally visit your home. He’ll attentively assess your needs, applying his extensive knowledge to recommend the most suitable solution for your needs. During this visit, he’ll also take preliminary measurements for an accurate quote. Once you have a quote, we will wait for you to contact us in case you wish to proceed.


From uPVC Windows to Aluminium Bifolds, Landmark’s Got it All!
The Landmark team have successfully completed double-glazing projects across Plympton and the surrounding areas for a wide range of homes and businesses, including both private and public sector clients, as well as local councils. As a FENSA-Approved Installer (Reg: 32985), we are highly experienced in collaborating with builders, architects, and all other trades. We are able and willing to undertake projects of any scale.
Enjoy the Views You Adore, With Landmark Windows & Doors
Choosing Landmark for your double glazing in Plympton means saving money on your energy bills and boosting your property’s appeal. Thanks to our sliding patio and bifold doors, you can enjoy your garden views more than ever.
Reviews from our Happy Customers
We love hearing from our clients. At Landmark Windows & Doors, we appreciate customer feedback, and we believe it helps us get better. We have over 100 customer reviews on Checkatrade – you can read some of them below. If you have used our services, we would appreciate it if you left us a Checkatrade or Google review.
Our Work – Gallery Images
Established way back in 2004, Landmark Windows specialise in expert installation of uPVC and Aluminium Windows and Doors, delivering high-quality double glazing across Plympton and the surrounding area. Recognising each customer’s unique preferences, we offer a diverse range of styles. This includes both sleek modern and contemporary designs, alongside options that embrace a more traditional or heritage aesthetic.
For homes with a classic style, we offer timber-effect uPVC Sash Windows and Doors, complete with traditional hardware, such as sash horns and astragal bars. These options blend timeless aesthetics with modern technology’s advantages, guaranteeing superb weatherproofing and excellent energy efficiency.
For contemporary homes, our Aluminium Windows and Doors offer a sleek, sophisticated aesthetic. Combining powder coating and advanced thermal technology, they deliver outstanding performance within a slim yet robust design capable of supporting expansive glass panes.







A Few Frequently Asked Questions
How can we be sure that your work is high-quality, and in accordance with industry standards?
Landmark Windows & Doors are a FENSA registered company. This scheme is government authorised, and we are regularly assessed to ensure that we comply with building regulations and standards.
What happens if there is a problem with my window or door installation?
All our products are guaranteed by Installsure (member no. 2086). Founded by the Glass and Glazing Federation, they aim to provide homeowners with protection and peace of mind on their investments. In the unlikely event of a problem with the installation of windows or doors, we will do everything to ensure it is rectified.
We are very cautious when allowing people into our home. How do we know we can trust your company?
Landmark Windows & Doors are Trustmark accredited. When choosing us, you can be sure that we have been vetted to meet the required standards to improve protection for homeowners, and have made a commitment to delivering good customer service. We adhere to strong family values and always treat you with respect, providing an honest service.
We have heard about some other companies putting pressure on customers, so salesmen can meet their targets. How do we know you won’t do the same?
Landmark Windows DO NOT employ salesmen. We want our customers to feel safe and secure in the knowledge that they are in control. If you request a quote, you will be visited personally by our Owner/Director. He will sit down and discuss your requirements, and he will give you honest advice when you ask for it. He has over 35 years’ experience in the industry, and he can help you with your queries. He will take rough measurements on the day to enable him to go back to the office and prepare an accurate quote. This will be emailed to you, unless you agree on another method. We then leave you to decide whether you wish to proceed with the work. We will wait for you to contact us, if you wish to move forward.

Working With Quality Brands for the Best Results, Every Time!
At Landmark Windows & Doors, we are dedicated to providing exceptional quality by partnering with trusted, high-performance brands. Our goal is to offer our valued customers the best products at competitive prices. Your satisfaction is our top priority in everything we do.
Contact Our Friendly Team
If you are in need of a trustworthy company to provide reliable Double-Glazing in Plympton, Devon, or Cornwall, look no further than Landmark! Please get in touch with us using the details below to arrange a quote visit. We look forward to hearing from you.
Design meetings are available upon request.
Speak To Us
01752 283834
Message Us
Click here to message our team through our contact form.
Opening Times
Monday - Friday:
9:00am - 4:30pm
Our Office
2, Officers Quarters, Crownhill Fort, Crownhill, Plymouth, PL6 5BX



















