Quality uPVC & Aluminium Double-Glazing Plymouth


Trust Our Experts for Double-Glazing in Plymouth
With over 35 years of experience in the double-glazing industry, our family-run company are experts in the installation of uPVC and aluminium glazing. Whether required for a new build, or replacing existing uPVC or aluminium windows & doors, we can help to transform your rooms into stylish and thermally energy efficient spaces to last for years to come.
Our ethos is to give our customers a personal service. At Landmark, we NEVER employ salesmen, and it is against our policy to pressure you, as potential customers into any decisions. When you request a quote from us, you will receive a personal visit by our Director, Mark, who will listen to your requirements, use his vast knowledge and expertise to advise you if you ask questions, and take rough measurements to enable him to prepare a quotation. Once you have received a quote, we wait for YOU to contact us, should you wish to proceed further.


From uPVC Windows to Aluminium Bifolds – We’ve Got You Covered!
The team at Landmark have completed projects for double-glazing in Plymouth for homes and businesses in both the private and public sectors, in addition to local councils.
As a FENSA-Approved Installer (Reg: 32985), we are experienced in working alongside builders, architects and any other trades, and will take on projects, of any size.
Enjoy The Views You Love, With Landmark Windows & Doors
If Landmark install your double-glazing in Plymouth, you will benefit from saving money on your energy bills, in addition to having a home or business that looks aesthetically pleasing to the eye. Why not consider our sliding patio doors, or bifold doors – enabling you to enjoy panoramic views of your garden or outside space?
Kind Words from our Happy Customers
At Landmark Windows & Doors, we love to read feedback from our customers, and take any comments onboard. We have over 100 reviews on Checkatrade. See a few of the kind reviews we have received, below. If you have had an installation by our team, please feel free to leave us a Checkatrade or Google review. Thank you.
Our Work – Gallery Images
Since 2004, our hardworking team at Landmark have installed uPVC, plus aluminium windows & doors – providing first-class double-glazing across Plymouth and a 25-mile radius.  Everyone has different tastes and requirements, so we are pleased to be able to offer not only modern, contemporary styles but also windows & doors with a more traditional or heritage look.Â
Products such as timber-effect uPVC sash windows or doors, along with traditional hardware such as sash horn or astragal bars will suit older style homes, whilst benefitting from modern technology, weatherproofing and energy efficiency.
For more modern homes, aluminium windows and doors are sleek and sophisticated. The powder-coating and thermal technology within the profile all act together to give superb performance, within a slim, but strong profile, able to hold large panes of glass.





A Few Frequently Asked Questions
What areas do you cover?
We install windows, doors and roof glazing across Plymouth and the surrounding areas. If you are unsure whether we cover your location, please get in touch with our team, and we will be happy to advise.
How energy efficient are modern double-glazed windows and doors?
Modern double glazing is designed to improve insulation and reduce heat loss. This helps keep your home warmer during colder months and may help lower your energy bills. Many products also feature advanced glazing and thermal technology to maximise efficiency.
Do you offer guarantees on your windows and doors?
Yes. All of our products are supplied with a comprehensive guarantee, giving you peace of mind that your investment is protected.
Do you use sales representatives?
No. We do not employ salespeople or use high-pressure sales tactics. When you request a quote, you will speak directly with a member of our experienced team who will provide honest advice and allow you time to decide.
Do you supply both uPVC and aluminium products?
Yes. We install both uPVC and aluminium windows in addition to uPVC, composite and Aluminium doors. uPVC is a popular choice for its affordability and energy efficiency, while aluminium is known for its strength, slim profiles and contemporary appearance.
Are your installations compliant with building regulations?
Yes. We are a FENSA-approved installer (Reg:38935), which means our installations comply with current building regulations and industry standards. After installation, you will receive the appropriate certification for your records.
Will someone need to visit my home before providing a quote?
Yes. We normally arrange a visit to discuss your requirements and take measurements so we can provide an accurate quotation. This also gives you the opportunity to ask any questions about products or options.
Can you help with both replacements and new build projects?
Yes. We work on a wide range of projects, including replacement windows and doors, new builds, home extensions and renovation work. We are also experienced in working alongside builders, architects and other trades.
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 searching for a reliable company to provide trusted double-glazing in Plymouth or the surrounding areas of Devon or Cornwall within a 25-mile radius, please contact us using the details below to arrange a quotation visit. We look forward to hearing from you.
Design appointments are available by 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

















