We work with homeowners, developers and commercial clients across Harlow, offering a full range of glazing solutions – from sleek aluminium frames to low-maintenance UPVC systems. Harlow is a regular part of our Essex coverage from our Dagenham base, with a team experienced in the town’s distinctive post-war and modern housing stock.
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.
Harlow is a new town with a housing stock shaped by its post-war development – the majority of the residential areas consist of low-rise semis, terraces and flats built from the 1950s through to the 1980s, with a character quite different from the Victorian and Edwardian suburbs found elsewhere in Essex. More recent development has added contemporary housing to the mix, and the town has a growing homeowner base investing in improvements.
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 an increasingly popular choice on Harlow’s improved and extended properties, particularly on the detached homes and larger semis in the more established residential areas. The slim profiles and wide colour options offer a genuine step up from the standard white uPVC that dominates much of the town.
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 dominant window type across Harlow’s post-war housing stock, and for most standard replacement projects it remains the practical first choice. Our range covers modern finishes that improve on earlier installations, all manufactured to your exact measurements at our Dagenham site.
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.
Harlow’s post-war character means heritage glazing requirements are less common here than in older Essex towns, but there are some older properties on the town’s edges and in the surrounding villages where our heritage range is the appropriate solution. Available to order in any size and colour where needed.
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
We supply and fit the full range of doors across Harlow, from straightforward front door replacements on the town's large post-war housing stock to aluminium bi-folds for extended and improved properties. Our team will advise on the right product for your home and budget.
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 a popular choice on Harlow’s extended and improved semis and detached homes, where rear kitchen and garden room projects benefit from wide, contemporary openings.
A reliable, low-maintenance option that performs well on both security and insulation. Available in a range of styles, finishes, and colours to suit all property types.
The most common door type across Harlow’s post-war housing – practical, low maintenance and well priced. Available in a range of panel styles and finishes to suit the town’s predominantly modern housing stock.
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.
A popular and effective front door upgrade across Harlow, where the composite range delivers improved kerb appeal and security at a price point that makes sense for the town’s housing stock.
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 Harlow, 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 Harlow and the surrounding areas, including Bishops Stortford, Sawbridgeworth, Epping, North Weald, Old Harlow, Great Parndon, Netteswell and the wider CM17, CM18 and CM20 postcodes.
Want to check if we cover your postcode? Give us a call or drop us a message and we'll let you know.
Harlow’s new town character makes it somewhat different from the rest of our Essex coverage area, and our team understands those differences.
The post-war housing stock has specific glazing requirements – the proportions, the construction methods and the planning context are all distinct from the Victorian and Edwardian suburbs we work in elsewhere across the county.
Harlow doesn’t have the same concentration of conservation area restrictions as some older Essex towns, which means the process for most standard residential replacements is relatively straightforward.
Where older properties on the town’s edges or in surrounding villages do have specific planning considerations, our team will identify those during the initial consultation.
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 Harlow regularly from our Dagenham base and can arrange surveys across the CM postcodes without long waits.
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 Harlow 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 Harlow 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.
For most post-war properties in Harlow, uPVC is the most practical and cost-effective option - it performs well on this type of construction. If you're investing more ambitiously, aluminium is worth considering for the improved finish and colour options. We'd recommend a site visit to advise on the specific property.
Yes. The newer housing developments in and around Harlow are a regular part of our workload. For new build specifications we can work to architects' drawings and building regulations requirements, and for developer enquiries we can discuss volume pricing and delivery schedules.
