We work with homeowners, developers and commercial clients across Kent, offering a full range of glazing solutions – from sleek aluminium frames to low-maintenance UPVC systems.
Replacing your windows is one of the most impactful upgrades you can make to a home. Improve thermal efficiency, reduce noise and refresh the look of your property from the outside in.
Kent’s housing stock varies enormously across the county – the commuter towns of North and West Kent like Dartford, Gravesend and Sevenoaks have a mix of Victorian terraces, interwar semis and modern executive homes, while the more rural areas have character cottages, farmhouses and village properties that require careful glazing choices.
DDG Windows offers a wide range of frame materials and styles to suit every type of property. Our team can guide you in choosing the perfect option for your home, balancing style, performance and budget.
Slim profiles, excellent strength and a broad choice of RAL colours. Aluminium windows are the go-to for homeowners who want a premium finish that lasts. Available in casement, bay, picture, tilt & turn, shaped, and gable frames.
Aluminium is the premium choice for many of Kent’s larger detached and executive homes, particularly in the more affluent commuter towns where homeowners invest carefully in improvements.
A practical, cost-effective choice that doesn’t compromise on performance. Available in a wide range of styles, colours and finishes – from square and rectangular to arched and circular frames – with each and every window can be tailored to your exact measurements.
uPVC is the most widely fitted window type across Kent’s large residential stock, particularly in the post-war and modern housing of the North Kent towns. Practical, low maintenance and well priced, it covers the majority of standard replacement projects across the county.
Our heritage windows capture the look of traditional steel designs using modern materials by delivering the same timeless aesthetic with far better thermal performance and security.
Kent has a significant number of conservation areas – where our heritage window range is the appropriate solution. Made to order in bespoke sizes and profiles to preserve the character of period and listed properties.
Proudly independent, family-run glazing specialists since 1983
Fully bespoke, made to your measurements, style and colour
Government-approved registration guarantees safe & insured install
All our windows & doors are built in our Dagenham manufacturing site
From standard front door replacements across Kent's large suburban housing stock to premium aluminium bi-folds for extended rural and executive properties, we supply and fit the full range across the county.
No matter if you’re replacing a tired front door, opening up your home to the garden, or securing a side entrance, our team will help you find the perfect solution.
High-performance, built to last, and exceptional security. Available in a wide range of RAL colours and configurations – from bi-folds to front entrance doors – and made to order for a precise fit.
Aluminium bi-fold and sliding doors are popular across Kent’s larger detached and rural properties, where rear extensions and garden access benefit from wide, high-performance glazed openings.
A reliable, low-maintenance option that performs well on both security and insulation.
A reliable and popular choice across Kent’s large suburban and post-war housing stock – available in a wide range of panel styles and finishes, with competitive pricing and delivery from our Dagenham manufacturing base.
Our GRP composite doors offer the look of a solid timber door without the warping, swelling or repainting that comes with real wood. The outer skin is moulded from glass reinforced plastic, giving it exceptional durability and a finish that holds its colour and texture year after year.
Popular right across Kent for front door replacements on both period and modern properties. The timber-effect finish and heritage colour range work well on the county’s traditional town and village streetscapes.
A roof lantern is one of the most effective ways to flood a kitchen extension or garden room with natural light. DDG Windows supplies and installs aluminium roof lanterns across Kent, available in a variety of sizes and glazing options to suit your project and budget.
Our roof lanterns are thermally broken as standard, keeping heat in during winter and reducing solar glare in summer - meaning your new space is comfortable year-round.
Our team regularly carries out installations across North and West Kent, including Dartford, Gravesend, Swanley, Sevenoaks, Tonbridge, Maidstone, Chatham, Rochester, Sittingbourne and the surrounding DA, TN and ME postcodes.
Other regions we cover:
Want to check if we cover your postcode? Give us a call or drop us a message and we'll let you know.
Our Kent coverage is centred on the parts of the county most accessible from our Dagenham manufacturing base – North and West Kent in particular, where the Thames Estuary corridor and the commuter towns along the A2 and M20 are well within our regular service area. We’ve been working across this part of Kent for many years and understand the variety of housing stock.
Kent has a significant number of conservation areas and listed buildings, particularly in the historic market towns and designated villages. The planning requirements for glazing in these locations vary, and our team will always check what applies to your specific property before recommending a product.
Our heritage range is a common solution for the county’s many period properties.
Download our brochure to explore the full range, or book a free consultation and let our team guide you through the options. Either way, there’s no obligation and no pushy sales process.
Our people are at the heart of everything we do. Many of our team members have been with us for decades, working alongside younger innovators to ensure DDG stays ahead with cutting-edge machinery, contemporary design, and expert craftsmanship. From Neil’s first home visits - with no pushy sales tactics, just honest quotes - to our installers who treat every property with respect, you’ll always feel supported and looked after.
Experienced. Dedicated. Customer-focused. Our directors and senior management team lead with decades of experience in window and door design, manufacturing, and installation. Based in London and Essex, the DDG leadership team oversees every stage of production, ensuring quality craftsmanship, efficient service, and customer satisfaction on every project.
Skilled. Reliable. Proud of their craft. From our expert fabricators and finishers in the workshop to our professional fitters, installers, and delivery drivers, every member of the DDG team plays an essential role. Their precision and attention to detail ensure your new windows and doors are expertly crafted, installed, and finished, right here in our London factory and fitted across homes throughout the UK.
Usually within 48 hours of your enquiry or site visit. We serve North and West Kent regularly from our Dagenham base and can arrange surveys without significant lead times for most locations in our coverage area.
It depends on the scope of the job and site conditions, but as a general guide our two-man installation teams typically fit three to six windows per day. We'll give you a clearer timeline once we've completed your site survey - for larger Kent properties with multiple replacement windows or doors, we'll factor that into the schedule upfront.
We'll confirm your style choices, glass spec, opening configurations and colour options, then put everything into a formal order. A deposit is required and a site survey will be booked so we can take accurate measurements before manufacturing begins at our Dagenham facility.
Yes - every aluminium window, UPVC window, door and roof lantern we fit across Kent is installed by our own fully trained and accredited team. We never subcontract, which means the same standards apply on every job regardless of where in the county you're based.
Conservation areas in Kent's historic towns and villages can restrict what replacement glazing is permissible - typically requiring like-for-like replacements in appropriate materials. Our heritage window range is designed for exactly this situation, replicating the period aesthetic using modern thermally-efficient materials. We'll check what applies to your specific address during the initial consultation.
Yes. Dartford is one of our most regularly covered Kent locations - it's accessible from our Dagenham base via the Dartford crossing, and we work across the DA postcode area regularly. The housing stock in Dartford ranges from Victorian terraces in the town centre to larger modern detached homes on the outskirts, and we cover the full range of product types accordingly.
