Clement Windows Group

The existing commercial building at 22-23 Little Portland Street comprised ground, basement and four upper floors. Robson Warren Architects’ brief was to design a scheme that improved the office facilities and services, enabling the building to attract further tenants. Their proposals were required to take account of the environmental sustainability of the works and their impact on the property, which is situated in the East Marylebone Conservation Area.Peter Warren from Robson Warren Architects said: “The building was entirely of post-war construction, with single glazed, steel-framed, W20 type casement windows. The subdivision of the windows and slender steel glazing bars was a significant contributor to the appearance, but the existing single glazing would prevent the achievement of the required improvements in environmental performance. Refurbishment of the existing frames was rejected on the grounds that they were too badly corroded, not thermally broken and provided practically no insulation value, acting as a cold bridge and source of condensation.“Approval was sought from Westminster City Council to replace the existing windows with thermally broken, steel-framed, double glazed units to improve thermal and air tightness performance whilst replicating the existing appearance as closely as possible. Steel framing was chosen to allow the slenderest profile to be used while achieving the required performance improvements. Once planning permission was granted, proposals were sought from potential suppliers for both double and triple glazed windows and doors. After much consideration, slender Jansen Janisol cold rolled, mild steel sections which achieved the sight lines required were specified from Clement Windows. Their comprehensive system allowed us to incorporate open-in and open-out windows, French doors and lift and slide doors into the scheme.Clement provided clear drawings to assist in the development of the design which were approved for manufacture. A request for a bespoke RAL colour for the frames was accommodated. The installation was completed to our satisfaction without any significant issues. We would not hesitate to return to Clement Windows for enquiries about future steel-framed window projects.”

This delightful Arts and Crafts home has recently been fitted with new steel windows from the Clement Brooking range and Clement W20 steel doors.As the property is located in the Hampstead Garden Suburb, a Conservation Area, it was imperative that the new bespoke windows and doors closely matched the look of the originals. The fenestration includes a mix of genuine T bars and beautiful Fenestra joints for both the windows and doors but also some charming leaded light windows.Clement has a wealth of experience working within the Suburb and for this project we knew the slim frames of our Brooking range, combined with our W20 doors, would work perfectly for the mix of styles found at this property.The leaded light windows had unique handle plates. We took templates of the existing ones to ensure that the new ones we crafted were very close to the originals.The client said: “"It was very easy working with Clement once we'd made the decision to renew our metal windows. They took great care over the smaller details such as the handle finishes, window hinges and the special decorative detail behind the top floor window pulls. As a result we have new up to date working windows that are fit for purpose, a pleasure to use and look at, and also comply with the Conservation Area and Listed Buildings requirements for this area."

Over a number of phases, Clement have manufactured and installed new steel windows and doors from our EB24 range for this magnificent house in the Berkshire countryside. The original home was built in 1905 and the current owners have beautifully refurbished the whole property including the gardens. They have cleverly added a contemporary twist, but have retained all of their home’s original charm. The new slim framed steel windows and doors have opened up the views from the house to the garden and let masses of light into the home. Two different glass types were chosen: leaded light glass for the new multi point locking steel windows and G+ glass for the steel doors, and the combination works perfectly together. The larger panes of glass in the steel doors allow natural light to flow throughout the ground floor. The client said: “Clement Windows Group are a fantastic company. They have worked at my property now for the last couple of years, as the work has been carried out in phases. Throughout the whole process I have been impressed with their professional service. We are really happy with the quality of all our new windows and doors and would not hesitate to use Clement again in the future.” 

We were delighted when the owner of this fantastic Art Deco home in the West Midlands got in touch with us to discuss replacing the windows and doors at her home.Although the property is not listed, our client wanted to retain the character of her home which meant replacing the windows and doors with a product which matched the originals – so it had to be steel! Clement EB20 steel windows and doors provide the stunning slim frames of the original fenestration but offer a much improved specification, making them the perfect choice.The client said: “I am thrilled to express my utmost satisfaction with the quality and service provided by Clement when they installed our new windows. The professionalism and attention to detail displayed by their team were truly exceptional. The windows have not only enhanced the aesthetics of our home but have also significantly improved energy efficiency. I highly recommend Clement to anyone seeking top-notch window solutions and impeccable customer service. Thank you for a job well done!”

Clement was thrilled to be asked to manufacture the new steel windows and doors for this spectacular Arts and Crafts style house in the Hampstead Garden Suburb. The new leaded Brooking windows and W20 steel doors, look just like the originals – perhaps even better! Hampstead handles were chosen for the windows and Kensington handles for the doors. They were all polyester powder painted in RAL 9005 Jet Black to match the frames. Our client is really pleased with the end result and said:“We placed a large order with Clement of double glazed leaded doors and windows. From start to finish we received a first-class service and the product quality and finish is superb.” 

The owners of this farmhouse in the Surrey countryside have sensitively restored it, transforming it into the stunning property you see today.Much consideration went into every aspect of the renovation, not least the replacement windows that were required to ensure the perfect finish for this Grade II listed home.Clement EB20 steel windows were specified as the right product to match the original fenestration, offering much improved thermal performance and security, with the benefit of multi-point locking. After much deliberation between the local planning department, the architect, contractor and the homeowners, it was decided that the new bespoke windows would feature an unusual flush T bar design and be painted Anthracite Grey, rather than keeping the original white frames and leaded glass. These clever design choices were a success and have transformed the look of this property.The homeowner said: “It was a delight to have Clement achieve excellence at our home in Surrey. Collaborating with the construction contractor, the quality of windows and execution was a testament to their commitment to deliver.”

Mary Weaver was the Houses Editor on Livingetc for over a decade so she knows a thing or two about design! We were delighted that she chose Clement to manufacture and install the new steel doors she required for her beautiful new home in Brighton.Mary now lives in a wonderful Regency Town House. The kitchen is located on the lower ground floor which is where the two new doors have been installed. They bring in lots of natural light and open out into the charming walled garden.Mary commented: “I love my new steel doors which make the room much lighter and warmer and encourage the indoor-outdoor link to the garden. Clement were a delight to work with and made everything easy and straightforward. The fitters were super efficient and left the place spotless.”

Our client is the owner of this superb 1930s house which is located in a suburb of Manchester. The property is currently being renovated throughout and as the old windows were no longer fit for purpose, the decision was taken to replace them with a product which looked just like the original windows, but offered a much improved specification.The Clement EB20 range of steel windows was chosen, with G+ bars and beautiful fenestra joints. The new windows are dual coloured - a dark bronze was chosen for the outside frames while white was selected for the inside to match the interior.

City of London Freemens first opened in Brixton in 1854 for ‘the maintenance and the religious and virtuous education of orphans of Freemen of the City of London’. Paid for by the Corporation of London both boys and girls were enrolled from the outset making it one of the oldest co-educational independent schools.In 1926 the school moved to Ashtead Park in Surrey. The Grade II* listed Main House at Ashtead Park had been the home of Sir Robert Howard, Chancellor of the Exchequer during the 17th century.In 2016 an ambitious development project was commenced, due to span the next decade. The modernisation of the Main House, now the Sixth Form Centre, involved a redesign of the building and the new layout required fire screens to ensure the building met with current Building Regulations. Clement Windows Group supplied the internal fire rated doors and screens at the top of the adjacent internal stairs which are access controlled and linked into the main fire control of the building.

Clement have replaced hundreds of industrial style steel windows at the newly restored Maple Building in Kentish Town, North West London. Dating back to the 1890s, the building has an interesting history. It was originally home to Maple & Co, furniture makers for the royal family. Then in the First World War sections of the factory were secretly modified to produce fighter plane components, canvas tents and other supplies for front line troops. More recently the building was used for office space until developers The Linton Group acquired it, turning an old converted warehouse into five floors of luxury apartments and penthouses.Interior architects, Gordon-Duff & Linton insisted upon a high specification throughout, focusing on strong acoustic and design performance. Clement W40 steel windows and Jansen double doors were the perfect choice, complementing the cosy, well-lit interiors that are a feature of the building, as well as offering superb quality and an impeccable match to the original fenestration.“The Maple Building is our flagship development. It has bags of industrial charm and period character due to its many original features. The steel windows by Clement respect and enhance these while simultaneously complementing the high specification modern interior design of the project.” said Gemma Gordon-Duff, Managing Director at Gordon-Duff & Linton.

Our clients had a traditional out-building in the grounds of their Grade 2 listed house. It was built in 1850, originally being used as a stable/coach house for the main property. Later it was turned into a garage and workshop, with an artist's studio built into the hay loft in 1970.Recently the owners decided it was time for change and realised the building had the potential to be a fantastic living space. An old metal window was in the original stable. This became the inspiration for the new steel windows and doors which would become a key part of the transformation.The renovation has been done sympathetically to keep the character of the building. Old bricks from the original walls have been restored. New lead work creates a feature around the upstairs dormer windows. Further additions to the building were completed in stone from the old garden, along with oak for outside walls. Our clients wanted to make the building environmentally friendly, so they installed a heat pump for underfloor heating and ensured comprehensive insulation of the whole building.The new fenestration chosen offers much improved thermal efficiency, security, and will be easy to maintain for many years to come. The sleek, elegant lines of the steel windows and doors look in keeping with the traditional feel of the property and bring in masses of natural light. The EB20 steel windows offer multi point locking and have been beautifully accessorised with Selbourne handles and matching peg stays.We are so pleased that the homeowners are delighted, they said: “Stunning windows and doors. Everyone who visits admires the windows - our builders are impressed too! We are so pleased we chose Clements. Your windows are the perfect fit and look magnificent, both complementing and enhancing the house inside and out, and marrying the building into our main house. From start to finish we have had excellent service. Thank you!”

Typical of most of the houses in the Hampstead Garden Suburb, the style of this beautiful home is influenced by the Arts & Crafts movement.The original steel windows and doors were draughty and no longer fit for purpose and so they needed replacing. The Clement range of Brooking windows, which feature a specialist ‘putty fronted’ system, was chosen together with doors from the Clement W20 range, to match the originals perfectly. The new, bespoke steel doors and windows were painted ‘Jet Black’ on the outside to replicate the previous fenestration and ‘Traffic White’ on the inside to complement the interior. The homeowner said:“I am absolutely delighted with Clement and would recommend them very highly. Their workmen were very professional and swift and they left the house tidy each day. They were a pleasure to have in the house whilst they were doing the work.”

The Harley Street Conservation Area (HSCA), designated in 1968, is rich in history and architectural significance. The area is known for its terraced houses from various periods, reflecting different architectural styles from Georgian through to 20th century Modernism. The HSCA is situated within the boundaries of the ancient Manor of St Marylebone, whose history can be traced back to the Domesday Book in the 11th century.Situated in this area is this fine, Georgian-fronted apartment building which has Art Deco-style fenestration. Its historical importance meant that when it was time for the existing windows and doors to be replaced, a lot had to be considered!Clement was chosen to manufacture and install the new fenestration in a number of the apartments here, because of our wealth of experience on similar projects and also because we offered the right product. Our bespoke EB24 range is a close match to the original windows but with a much improved specification. Dual colour was an option for the new windows, so for this particular apartment they were painted black on the outside and white on the inside to match the owner’s interior.

Clement was thrilled to manufacture new bespoke steel doors and windows for this magnificent Georgian-style home set in the South Downs in East Sussex. The house has been refurbished internally and externally and the existing loggia has been extended to house a new kitchen wing.Six arched head steel doors and window sets were incorporated into the design of the extension. These were manufactured by us from our W40 range of slim steel sections. They let in masses of light and provide a way through to the newly landscaped grounds, at the same time creating a stunning feature - the result is phenomenal.Clement also crafted a series of EB24 steel windows featuring Fenestra ‘T’ bars for the top floor of the house and the combination of different fenestration types works perfectly.The project won the House & Garden ‘House of the Year’ award in 2023.The Architects said: "We had a complex detail of Stone arches, steel frame, the Clement windows and doors and plasterwork internally, requiring a high level of precision. Clement helped co-ordinate the packages for a seamless integration."

As an Architectural Designer, Pauline Sutton always specifies Clement Conservation Rooflights for projects where rooflights are required.This country office in West Sussex is one of her latest developments. The brief was to convert a residential outbuilding to provide both a home-office and an art studio, all with minimal impact on the historic integrity of the C18th building.After carefully repairing the oak timbers in the roof; new felt, battens, insulation and re-used handmade clay tiles were added. Two Clement 0 rooflights were then fitted and dressed with bespoke lead work. The spaces were completed with two new oak doors, the stripping back of some old brick-work, lime-mortar repairs and new electrics.As the rooflights were slightly out of reach, brass pole winders were fitted and a winding crank is used to open and close the rooflights.Pauline said: “Here at Pauline Sutton Design we are happy to regularly specify Clement Conservation Rooflights within our Material Schedules and Planning Applications. Listed Building Consent applications here in The South Downs National Park especially require the top quality and carefully considered design by Clement.”