N&P WindowsWindow and doors company

Installing windows, doors and conservatories for over 40 years 

N&P Windows is one of Hertfordshire's most established and renowned window and door companies. They have built up this reputation over 40 years of excellence supplying windows, doors and conservatories to over 40,000 satisfied householders across the county. N&P Windows supply and install an extensive range of technically advanced PVCu products. They understand the requirements of the trade installer, small builder, local authorities and home owner. Through listening and understanding what each individual client wants, N&P Windows provide the best products with a personal commitment to quality and service. For peace of mind, every window and door fitted has a CE Marking / Declaration of Performance and every supply and install is in conformance with EN 14351. This means your products are fully guaranteed. 


N&P Windows are outstanding quality. There are many different designs to choose from in different colours and finishes that suit you and your needs. The windows have been described as perfection at affordable prices. 

Casement Windows 
These windows represent the very best in terms of comfort and security. They will complement all styles of home whether you have a classical or contemporary property. Each double glazed unit is crafted to your exact specification and measurements to fit perfectly with your needs and the style of your home.

Sliding Sash Windows
The Charisma is a stunning and modern vertical sliding sash window. This window combines classic, elegance and style detailing from the Georgian era. These windows are made using the very latest production techniques and technologies. The cutting edge designs of these windows incorporates modern low line beads, enhanced weather protection and inward opening sashes that allow easy cleaning.

Tilt and Turn Windows
The double glazed Tilt and Turn windows offer a large range of exciting choices. There is almost  limitless range of colour finishes, profiles, textures and styles for the look you want to achieve. Perfect for large-sized openings in multi-storey buildings, tilt and turn reversible windows are the ideal solution. Large windows create unobstructed views and a feeling of space with optimum light exposure. These windows also offer the practical benefits of easy maintenance and cleaning.

Georgian Windows
Get that beautiful traditional look and feel with Georgian windows that come with the advantages of modern glazing technology. The Georgian style ranges from N&P Windows demonstrate the understated elegance of the Georgian style, while incorporating cutting-edge energy saving PVCu frames that requires minimal maintenance.

Shaped Windows
If you require specific shaped windows then N&P Windows offer the highest level of craftsmanship to achieve this. They manufacture windows in all shapes and sizes which is something few window companies offer. Once your windows are designed and built at the UK based workshops, the craftsmen and expert fitters will install your uniquely shaped windows for you. 

Leaded Windows
Leaded windows are part of the architectural heritage and can enhance a property of any age. N&P Windows offer a large and varied choice of leaded window designs to closely match your existing windows. There are two different colours of lead, antique and standard.

Horned Sash Windows 
N&P Windows offer a range of Horned Sash double glazed windows which includes a decorative ‘horn’ on the top and bottom of the profile. A traditional glazing bar can also be incorporated by hiding the glazing bars within the double glazed unit or by surface mounting the bars onto the external faces of the double glazed unit.

To view any or all of these stunning windows in more detail please click here: www.nandpwindows.co.uk/windows

Bi-Fold Doors

Sometimes French windows may not be right for you as you'll know their are certain limitations. Bi-Folding Doors offer unrestricted views of your garden, terrace, patio or pool. The precision-engineered bi-fold aluminium doors will transform your living space. There are numerous colour options. The standard finish for an aluminium bi-fold is white (powder coated) and guaranteed for up to 25 years. Alternatively, any  colour is possible and you can also have one colour inside and another colour outside.

To view more on Bi-Fold doors click here: www.nandpwindows.co.uk/bifolddoors

uPVC Doors

PVCu French Doors
These French doors make the most of your patio space and the well-engineered doors offer your family a stylish and secure entrance to your garden. The PVCu doors let in light, fresh air and summer feeling whilst also offering durable, low-maintenance, energy-efficient uPVC to keep the heat in all year round. These doors come with quality engineering, traditional style, space and functionality, energy efficient insulation, home security and expert installation by craftsmen.

Patio Doors
A favourite with so many homes, whatever the season, N&P patio doors add wonderful new dimensions to your home. Each PVCu Patio doors is designed especially specifically for each home. N&P will help you choose from a great range of styles and glazing options. Only the highest specification materials and advanced security features to keep your home and its contents safe.

Residential Doors
Residential doors combine the best features of traditional doors with the practical benefits of modern design and materials. N&P Windows are tastefully reproduced Georgian bars to leaded glass designs, each door is made to measure and can be tailored to exact specification. These doors come in a multitude of colours, choice and flexibility with traditional and contemporary designs, high-quality door furniture to compliment your period door, security features to keep intruders out, energy-efficiency and a reliable installation and service.

PVCu Stable Doors
N&P Windows offer a great range of Stable doors that are made-to-measure. They offer the best modern security and thermal efficiency available. PVCu stable doors bring character to your home and they very versatile. The top and bottom halves of the door operate independently to allow easy ventilation whilst keeping pets and young children secure. By locking the two halves together they also function as a standard door.

To view all the doors in more detail please click here: www.nandpwindows.co.uk/upvcdoors

Composite Doors (with security and furniture)

N&P Windows County range of doors has an option for every type of home. From the traditional cottage to the modern new build, N&P Windows have a vast range of styles available in a huge assortment of colours and glass finishes to match. 

Click here to view the Composite Doors: www.nandpwindows.co.uk/compositedoors 

Aluminium Windows and Doors

N&P Windows offer a vast and beautiful range of aluminium doors and windows. They have high quality upvc windows and composite doors and manufacture the aluminium product range in their state of the art factory to exacting specifications. The aluminium bi folding doors are of exceptional quality, the Vevolution Aluminium windows range has been a staple choice of the double glazing market for decades. N&P have mastered the art of creating the best possible aluminium windows to suit any home. The windows are low maintenance and will not rot or warp in the elements.

View the fantastic aluminium range here: www.nandpwindows.co.uk/aluminium


N&P Windows produce some of the highest quality conservatories in the country. There products all come with full guarantees and are visibly stunning. 

Victorian Conservatories
The Victorian conservatory is a classical, period design with all the ornate cresting and finials. This is one of the most popular conservatories because of its elegant three or five-facet design, easy adaptability to large or small gardens. This conservatory comes with a selection of roofing options that will complement your home. Although inspired by Victorian architecture, this impressively versatile conservatory design can complement most types of property. They let in the light as well as adding extra room and a little grandeur to your living space.

Edwardian Conservatories
The Edwardian style conservatory will transform how you live all year round. The N&P Windows Edwardian's practical square-fronted design, distinction and usability go hand in hand with timeless good looks. The Edwardian square, flat-fronted design allows you to maximise your enjoyment and usage of the extra space created. Edwardian conservatories offer the ideal way to extend and add value to your home in style.

Gable Front Conservatories
These Gable Front conservatories have stately pitched roofs and expansive gable-high glazing. The airy conservatory design complements new or period properties. Few styles capture the proud architectural heritage of a conservatory quite like the Gable conservatory. It is simply eye catching with its classic elevations, energy-efficient double glazed windows that extend to the apex and bring in extra light. These conservatories extend your home space out in the grandest of style.

Lean-to Conservatories
Very stylish and cost-effective, the Lean-to conservatory makes the best possible use of your available space. They provide a light and airy room for you and your family to enjoy all year round. Designed to run across the back of your home the Lean-to creates a contemporary, clean and luxurious link between house and garden. They are very affordable which make it a very practical and economical solution. The N&P Windows Lean-to conservatory maximizes space and you get the most from your home improvement budget. 

P-Shaped Conservatories
Combination and P-shaped conservatories offer a more spacious and greater level of flexibility by combining two styles such as Edwardian and the N & P Windows Lean-to, or by adapting an existing style so that is can be used in the shape of a 'P'. The P-shape conservatory creates a multifunctional space with two distinctive areas which can be used however you desire. For instance, you might choose to use one area for dining and the other for relaxing; the choice and the flexibility is yours. In addition to the P-shape, combination conservatories can also be used to create 'I' and 'B' shapes, giving you the greatest freedom to create the space you long for.

The N&P Windows Orangery is extremely popular. An orangery is a real statement and addition to your home. N&P designers will create a space that is not only practical but which is aesthetically stunning and that complements the existing character of your home. A more recent trend has been to introduce bi-fold doors so that the whole of one side can be opened up to the garden. 

View all the conservatories here: www.nandpwindows.co.uk/conservatories

Energy Saving

N&P Windows are ‘A’ rated for sustainability for Windows, Doors and Conservatories. PVC-U windows have achieved the highest rating possible in the Building Research Establishment (BRE) Green Guide to Specification. In the guide, PVCu windows received an ‘A’ rating for residential properties and an ‘A+’ rating for commercial buildings. Composite doors from N&P will retain up to six times the heat of a timber door and keep you warm all year round and help reduce energy bills.

Design and Security

N&P Windows are with you all the way when it comes to design and security of your home. You can choose from an almost limitless range of colours, profiles, textures and styles for the look you want. N&P Windows are crafted to your exact specification and measurements. To match your expectations N&P ensure that you are involved in as many of the design decisions as you want to be. To start with, N&P Windows talk with you about your lifestyle, tastes and glazing requirements. Then they design the windows you need from casements, sliding sashes, period style or one-off specials. With over 40 years of experience you are in safe hands. 


N&P Windows specialises in the installation of aluminium windows, doors, window walling, curtain walling, and PVCu windows, doors and conservatories. They work all over Hertfordshire, Bedfordshire, Buckinghamshire, Cambridgeshire, Essex, North London and Middlesex. Clients include Herts CC, Central Beds, Stevenage BC, B3 Living, East Hertfordshire, MOD, T&B, Wates, Kier, Vinci Facilities, Vernier, Jarvis, Lakehouse, Borras and they carry out projects in the Education, Social Housing, Military, Commercial and Domestic sectors. N&P can work as either a Specialist sub-contractor or Principal Contractor. Please contact them for further details.

A Company you can Trust

N&P offer a refreshingly unpressured and knowledgeable approach to choosing uPVC windows, doors and conservatories. A long-established, local, independent window door and conservatory company offering you a relaxed and friendly service and great value. Choose from the N&P extensive range and enjoy the highest quality products as well as professional design and installation. From your first phone call or visit, enjoy a hassle-free experience and personal service from a professionally run business. Years of experience fitting windows, doors and conservatories in and around the Hertfordshire area gives you further reassurance of a perfect installation. 

See what many clients have said about N&P Windows here: www.nandpwindows.co.uk/reviews

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