25 Years
Experience
Quality
Products & Suppliers
WHY CHOOSE US
Complete Window & Door Solutions –
Residential & Commercial
At DW Windows, we’re dedicated to providing reliable, stylish, and energy-efficient doors and windows for every home and business. Whether it’s a single replacement, a full installation, or urgent repairs, our expert team ensures every project is carried out with precision and care.
We offer high-performance windows to improve comfort and efficiency, secure and durable doors for peace of mind, and bespoke solutions tailored to your property’s style. As a local company, we pride ourselves on honesty, transparency, and fair pricing — with no hidden costs or surprises.
Your satisfaction is our priority. From the first consultation to the final fitting, we deliver exceptional service and lasting results. Choose DW Windows and see the difference quality craftsmanship can make.
Personalised Service
We know every home and business is unique, which is why we take the time to understand your needs. From the first consultation to the final installation, our team works closely with you to create a solution that fits your style, budget, and property perfectly.
TRUSTED CLIENTS THROUGHOUT SOUTH WALES
High Performance Products
We know energy efficiency matters, which is why our windows and doors are built to keep your home warm, quiet, and secure. Using advanced insulation and precision sealing, each product helps reduce heat loss and lower your energy bills. With quality materials and expert installation, you’ll enjoy lasting performance and year-round comfort.
Complete Window & Door Solutions –
Residential & Commercial
Our Services
UPVC WINDOWS AND DOORS
COMPOSITE DOORS
Aluminium bifold and patio doors
Composite cladding
Fascias and soffit
REPLACEMENT GLASS
Our Customers
Who We work with:
At DW Windows, we’re proud to work with a wide range of clients, delivering high-quality windows and doors that add value, style, and efficiency to every project. We work with:
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Residential customers
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Commercial premises
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Small businesses
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Property developers
No matter the project, we bring the same commitment to quality, care, and attention to detail.
REVIEWS
WE LOVE OUR CUSTOMERS AND THEY LOVE US!
Replacing Four Windows
Everything went great and Demian was professional. Thank you.
Marius Militaru, Porth
28/8/2025
One Window Ground Floor & Two 1st Floor
Demian did a magnificent job. Windows were nicely installed in estimated time. Very happy with results. Very happy with his way of working. Without any doubt I would recommend Demian to anyone. Thanks Demian.
Veronica Perez, Neath
27/8/2025
Window Fitting
Demian did an excellent job. He commincated well ahead of the job, was on time and did the job to a very high standard, ata great price. Demian goes above and beyond to do a great job. I would 100% recommend.
Sam, Blackwood
21/07/2025
Garage/Annex Refurb,Interior & Exterior
Works fast, tidies up everyday and a very reasonable price.
William, Drybrook
16/07/2025
Three Upstairs Window Units Replaced
I had six windows and a porch with composite door fitted by Demian. I have been in building most of my life and know a good tradesman when I see one, and Demian is up there with the best. His finish is superb and his always on time. I would highly recommend him to do work for anyone.
Keith Jones, Neath
13/06/2025
Conservatory Glass Pane Replacement
Excellent service. Gave an initial quote, came to measure up, confirmed price, ordered glass, and two weeks later came and fitted it. No fuss. Would more than happily recommend them.
Sam Bigmore, Penarth
07/06/2025
FAQ’s
Answers to our most frequently asked questions
What makes DW Windows different from other double glazing companies?
We’re a small business with over 25 years of experience serving homeowners across South Wales. Our focus is on quality products, honest pricing, and friendly service — from your first quote to final installation.
What types of windows and doors do you install?
We supply and fit a wide range of uPVC and aluminium windows and doors, including casement, tilt & turn, sliding sash, and flush designs. Our doors include composite, bifold, French, and patio styles — all designed for style, security, and performance.
How energy-efficient are your products?
All our windows and doors are built with modern insulation technology and energy-rated glass. This helps keep heat inside during the winter and reduces unwanted heat in the summer — cutting your energy bills and making your home more comfortable year-round.
How long does installation usually take?
Most window or door installations are completed within a day or two, depending on the size and complexity of the project. We’ll always agree a clear timeline before starting work so you know exactly what to expect.
Do you offer a guarantee on your products and installations?
Yes — every installation comes with a comprehensive 10-year guarantee, giving you complete peace of mind that your investment is protected.
Will new windows really make my home more secure?
Yes. Our windows and doors feature multi-point locking systems, strong frames, and toughened glass — all designed to keep your home safe and secure without compromising on style.
Do you replace conservatories or build new ones from scratch?
We can do both. Whether you want to upgrade an existing conservatory with modern glazing or create a brand-new space, our team will design and install a solution that fits your home perfectly.
How do I get a quote?
You can request a free, no-obligation quote online or by calling our friendly team. We’ll discuss your ideas, take measurements if needed, and provide a clear, honest price with no hidden extras.