Past Projects

Our previous body of work shows the scope of our expertise and the wide range of products and services that we have to offer.

Location
Highbury Square, London N5

Contractor
Sir Robert McAlpine

Value
£700,000

Carried out
October 2007 - April 2009

 

The conversion of the grade II listed East Stand of the former Arsenal football ground into prestigious apartments required Steel Window Services to supply and install W20 range replica steel windows and to fully renovate the retained existing steel windows at their workshops.

Steel Window Services Champions Hope for Gunners

London football club Arsenal, 'The Gunners', are not just talented on the pitch, its former stadium is also Grade II listed. When it came to refurbishing its 90-year-old steel windows, the club called in some top-class contractors, who would champion the original steel windows.

In addition to refurbishing many of the original windows, Steel Window Service & Supplies supplied many identically styled units made according to the W20 specification.

The project meant that mainly 'marginal pane' pivoting lights could be enhanced with modern draught-stripping, 16mm double glazing and a factory-applied polyester powder paint finished in 'Arsenal Red'. Crucially, more thermally efficient, 12mm double glazed units were also introduced into the original frames after they had been removed for cleaning, repair and corrosion protection. The replacement glazing was also accompanied by the provision of new glazing beads and new matching ironmongery.

"It was lovely to see the stadium before it turned into a building site and to have a wander around while it was still a proper football club," said Mick Harris, project surveyor and an Arsenal fan.

"It was a real insight. There were the famous marble halls and you could see how they kept their pitch in tip-top condition all year round by using special lighting."

Steel Window Services removed over 170 steel windows in the grade II listed East Stand. They ranged in size from 500mm by a metre tall to more than 1.5m wide and three metres tall, with a huge range of sizes going up the building and many composite windows coupled together.

Once removed, the company went to work on the old frames revitalising the steel windows so that the original single glazed windows with centre-pane U values of 5.7 W/m2K or so, can be upgraded glazing with centre pane U values of 1.9 W/m2K or better.

"We used 11.2mm double glazing units that were gas filled with a mixture of inert gases and supplied with a low 'E' coating to the inner face of the inner pane and warm edge reduced-sightline spacer bars," said Harris.

"It is difficult to believe you could do this with windows made of anything but steel. It would be very challenging to remove a 90-year-old timber window and breathe new life into it."

In addition to refurbishing the original frames, Steel Window Service & Supplies created an additional 95 windows. These meet the up to the minute W20 standards but were made to replicate the style of the originals, with the main difference being the use of 16mm glazing units.

The job was worth about £700k to Steel Window Service & Supplies and the company had a full-time staff of about 30 on-site for more than three months.

"One of the most challenging aspects of the project was the level of care required to renovate the frames fully. Attention to detail was crucial to replace the defective corroded sections, to cast replica-replacement ironmongery and to completely strip and re-coat the old frames. 'Arsenal Red' mastics to match the frames were specially manufactured to add the finishing touch to the windows," said Mick Harris.

"It was very satisfying to be involved in a project of this size and stature right on our doorstep. It was great for Steel Window Service and Supplies."

The steel window specialist was selected by Sir Robert McAlpine as a package contractor/supply chain partner for the work on the East Stand of what is to be known as Highbury Stadium Square, a high-quality residential development. The company was given the task of repairing and re-glazing the original frames, as well as fabricating and installing 95 new windows in an authentic style.

Matthew Hahn, managing director of Steel Window Service & Supplies, met the main contractor McAlpine's at the close of the works and both parties agreed that working closely together with mutual respect had resulted in the successful completion of the contract.

Location
240 Regent Street, London W1

Contractor
Bovis Lend Lease

Value
£1,200,000

Carried out
September 2007 - September 2008

 

To replace and upgrade the failed Universal Section 1930s un-galvanised steel windows with new high-performance replica W40 range galvanised and powder coated, acoustically and thermally insulating steel windows to this grade II listed building.

Steel Windows for Regent Street Renovation

The transformation of the former Dickens & Jones store on London's famous Regent Street has included a £1million+ contract carried out by Steel Window Service & Supplies (SWS) for the replacement of the original universal section windows.

The combination of traffic pollution and exposure to the elements over many decades had caused the old windows to corrode badly, while the design team for the project was also seeking to greatly improve the future physical performance. Although the use of cold-formed box section frames was considered at tender stage, the W40 system was selected on the basis of its slimmer sight lines, strength and the ease with which it meets part L of the building regulations. Acoustic performance was another key consideration and SWS subsequently carried out laboratory tests to determine the sound reduction properties of different glazing arrangements.

The window package manager for Bovis Lend Lease, Melanie King, comments: "These old-style windows would not normally be required to achieve such high acoustic performance, but the project architects made the specification because of the commercial office use which the upper floors of the building will be put to.

"The test results on the windows showed that they achieved a good pass throughout the range except for one of the higher frequencies. There has been a huge amount of documentation passing back and forth between the architects [Rolfe Judd], the window manufacturer and acoustic consultants, but everything seems to have been resolved successfully."

Darren Joyce of Steel Window Service & Supplies recounts: "This has been a technically very demanding project as well as a very interesting one, where we have had to work closely with the architects and, in particular, the acoustic consultants Alan Saunders Associates - as well as our client, Bovis Lend Lease with whom we worked on other recent contracts such as the BBC buildings at Western House and Old Broadcasting House.

"In line with the growing trend in high specification schemes, there was a set of some 30 different decibel reductions to be achieved across the audible frequency range with differing performance levels for individual building areas. This included Octave Band Centre Frequencies for the whole window system of between 15-21 dB at 125 Hz rising to a maximum of 32 dB at 1 kHz. A further performance requirement for the project was that almost all the windows have been designed to be openable to allow smoke ventilation."

Interestingly, while the use of concealed multi-point locking mechanisms was used on all the opening frames to offer the best possible weathering performance and a deterrent against forced entry, the contract also included the specification of 'Fireman's Axe' locks to provide for emergency escape situations.

The original window sections used were of the Medium and Heavy Universal type making the modern W40 system an ideal alternative offering a similar sightline. By employing soft-coat low emissivity glass and Argon gas filling enables the new windows to meet current requirements of Part L to the Building Regulations. The units are 26.8mm thick incorporating an 8.8mm acoustic laminate as well as a 4mm thick sheet of toughened glass.

Some windows were in excess of two metres high and their safe installation was governed by the main contractor's stringent health and safety guidelines set out in its Incident and injury free (IIF) site working policy.

Location
Gribloch House, Kippen, Stirlingshire, Scotland

Contractor
CKD Galbraith LLP/Cadogan Estates

Architect
Simpson & Brown Architects

Value
£105,000 (+VAT)

Carried out
December 2002 - February 2004

 

The replacement of the existing corroded steel windows to a grade A listed art deco private estate, with new W20 range galvanised and polyester powder coated replica replacement windows, utilising specialised double glazing methods and refurbished original ironmongery.

Spence Masterpiece has Steel Windows Replaced

An art deco residence designed by Sir Basil Spence and located on one of Scotland's most beautiful estates is having all of its original universal suite window frames replaced by Steel Window Service & Supplies in a major contract being overseen by Historic Scotland as well as Edinburgh based architectural practice, Simpson and Brown.

The work at Gribloch House near Stirling is involving the steel window specialist in painstakingly conserving all of the old ironmongery while drawing on little-used techniques, as well as new technology, to replicate the appearance of the original fenestration.

A spokesperson for Steel Window Service & Supplies, Mick Harris, states: "The people from Historic Scotland and Stirling council's conservation officers were not keen on the appearance of the 16mm double glazed units that are fitted as standard into W20 windows, because it is possible to see the spacer bar. We, therefore, sourced special, high performance, 11mm Slimlite IG units, which use a combination of inert gases to achieve a similar energy performance. You can, therefore, get very close to the window and it will still look like a single pane of glass."

Simpson and Brown brought the Slimlite glazed unit to the attention of Steel Window Service & Supplies, as the architects had specified it successfully for a number of projects involving the upgrading of original Georgian and Victorian timber sash and case windows in listed buildings.

To keep faith with the aesthetics of the 1930s windows, Steel Window Service & Supplies is using traditional putty to fit the Slimlite units rather than the normal glazing bead. To protect the edge seal of the 11mm units, standard-setting blocks and silicone sealant are being utilised prior to the putty being applied.

The Project architect for Simpson and Brown, Adrian Roberts, explains: "The replacement of the windows at Gribloch House was always going to be challenging with our needing to try to maintain the original appearance and slim sightlines. In my internet research, trying to find a company that could reuse all of the old ironmongery, it was only Steel Window Service & Supplies which seemed to offer this. Then in our subsequent conversations, it also transpired they could offer the very slim glazing units to conceal the spacer bars."

During the final installation phase of the project, Steel Window Service & Supplies will be sending an eight-man team up to Stirling to fit the new units into a total of 71 openings. The building will remain occupied throughout the two month period.

The manufacturer has had new hardwood sub-frames fabricated using Sapele obtained from certificated, sustainable sources; which will be fixed into the openings' concrete reveals. All of the W20 windows and door sets are hot-dip galvanised and polyester powder coated in white to blend with the building's white-painted rendered elevations.

The windows vary in size from 400mm diameter bulls-eyes, through to 6.5-metre tall staircase screens. There is also a diversity of different openers with side hung, top hung, bottom hung and horizontal pivots. And, while the curve to Gribloch House's front elevation is accommodated by faceting the steel frames within the radiused sub-frames, there is a large curved on plan window to the rear of the building.

Location
St. Paul's Cathedral Choir School

Client
Arup Fac-ade-Engineering

Value
£800,000

Carried out
July 2007 - December 2007

 

Steel Window Services, acting as Main Contractor, replaced the existing aluminium windows with new W40 galvanised and powder coated acoustically insulated and double glazed new steel windows. The school is a grade II* listed building located in a sensitive area.

Steel Windows Retain Profile of Listed City School

In 1967 a new building for St Paul's Cathedral Choir School was opened within the cathedral grounds and the choir boys were spared their daily march through ever-increasing London traffic. Forty years later the original single-glazed aluminium sash windows were falling into dangerous disrepair, so the decision was taken to replace them and Steel Window Service & Supplies Ltd was appointed main contractor for this large, demanding project to replace 443 windows and six doors.

Working with Arup Façade Engineering, Steel Window Service & Supplies were not only responsible for supplying the windows and doors; they also looked after health and safety on site, scaffolding provision and vitally important security measures.

The Choir school is a grade II* listed building governed by the Twentieth Century Society, with English Heritage also having a major interest. The window replacement contract was subject to strict planning constraints to ensure retention of the school's original look.

The plan was to fit double-glazed windows to reduce noise and improve thermal insulation, but with the additional weight of double glazing, aluminium frames were no longer an option. Only steel frames would be strong enough to retain the fine lines of the original design, so from their range of products Steel Window Service & Supplies recommended the W40 unit.

To retain the uncluttered building profile created by the sliding sash windows - even when the windows were open - open-out casements were not permitted by Westminster planning authority, and nor was fixing into the outer stonework.

The three panes of the tall, narrow windows were reproduced in the replacement windows, but this time with both the bottom and middle sections fixed. The top pane was bottom hung and opened inwards with the use of an operating pole. The appearance of the original aluminium frames was mimicked using a metallic polyester powder coating and the bottom pane of glass remained opaque. Special fixing lugs were used to secure the frames into the building's internal structure which required removing the plaster.

"We are delighted with the new windows," says Nikki Lovell the school bursar. "The building is much quieter and warmer, and we don't have to worry about the children's fingers anymore!

"After fixing the windows, Steel Window Services redecorated the rooms and were extremely considerate of teachers and pupils, as the school remained open for the duration of the work."

Les Lumieres, Jersey

 

Client
Axis Mason/Stansells

Value
£105,000

Carried out
August 2003 - March 2004

SWS was proud to be involved with the complete refurbishment of this landmark grade I listed 1934 property on the St Brelade coastline of Jersey. W20 polyester powder coated high performance double glazed windows were fitted throughout the art deco masterpiece to replace the rusted originals, to the exacting standards of the planners.

 

Private Residence, London NW1

 

Client
David Scott Architects

Value
£8,000

Carried out
October 2005

The versatility of the W20 range of profiles was best demonstrated by this internal partitioning screen in a North London apartment separating the kitchen and dining area. The contemporary screen maintained the light transference throughout by use of translucent glazing and the metal was left un-galvanised and lacquered for a modern aesthetic.

 

Western House, London W1

 

Client
BBC/Bovis Lend Lease

Value
£968,000

Carried out
February 2004 - October 2004

The renovation of grade II listed Western House by the BBC for their Radio 2 and 6 Music stations required the ageing 1930s windows to be replaced with new W40 range galvanised and powder coated windows by SWS. 189 no. replica "marginal pane" style windows were fitted with an enhanced specification for blast resistance, acoustic and thermal insulation.

 

St. Mary of the Angels, London W2

 

Client
Jane Ferra (Architect)

Value
£32,000

Carried out
October 2007

Modern steel windows can be made to all shapes and sizes, and this was demonstrated when we fitted replica replacement, but upgraded W20 windows to a Church in west London where the living quarters were cold and draughty. The new double glazed windows were galvanised, polyester powder coated, weather-stripped and included modern lockable ironmongery.

 

Our Lady and St. Joseph Church, Middlesex

 

Client
Firmco Limited

Value
£14,000

Carried out
February 2010

The centrepiece for the renovation of a Middlesex based church offered SWS an interesting design challenge. Working closely with the artwork designer, the architect, the lighting engineers and structural engineers - SWS created this stunning backdrop for the church interior from W20 range windows and structural steel members.

 

Rhodes Avenue Primary School, London N22

 

Client
Frankham Consultancy Group Limited

Value
£29,000

Carried out
November 2003

In addition to art deco and listed buildings, steel windows and doors still hold the accolade of the material of choice for schools and public buildings. They offer strength, security and longevity. An example is this automated entrance system to a north London school with galvanised and powder coated W40 range external screen and W20 range internal screen.

 

Private Residence, Letchworth, Hertfordshire

 

Client
Private Owner

Value
£29,000

Carried out
November 2010 - December 2010

The Letchworth council conservation officers ensured that SWS carried out the full renovation of the existing steel and cast-iron windows to this traditional period residence with great care and attention to detail. In addition to supplying a number of replica replacement windows, SWS provided re-cast replica ironmongery, lead lights and renovated all existing windows.

 

Hamstone House, Surrey

 

Client
Mice Sames Limited

Value
£180,000

Carried out
January 2006 - October 2006

SWS undertook a major renovation of the existing steel windows on this substantial country residence. The existing steel windows were stripped of all of their decorative finishes, fully overhauled, rust treated and re-glazed using new slim double glazing units and glazing beads. All ironmongery was fully stripped, renovated and re-fixed or replicated.

 

Greenhill House, Surrey

 

Client
Rupert Cordle Town & Country Limited

Value
£189,000

Carried out
January 2011 - June 2011

The redevelopment of this major country residence in Surrey required upgraded modern standard replacement steel windows to replace the existing failed single glazed steel windows. SWS used their British fenestration rating's council grade C window energy rated W30 range of galvanised and powder coated windows to provide comfortable living standards.

 

BBC Old Broadcasting House, London W1

 

Client
Bovis Lend Lease

Value
£513,000

Carried out
September 2003 - October 2004

As part of the major redevelopment of the BBC's grade II* listed Old Broadcasting House and surrounding buildings on Portland Place, SWS was employed to renovate and overhaul all of the existing 1930s steel windows in addition to re-glazing and ironmongery works. Being an important listed building, great care and attention were required during the works.

 

Peter Jones Building, London SW1

 

Client
Bovis Lend Lease

Value
£251,000

Carried out
May 2003 - April 2004

Peter Jones on Sloane Square is architecturally a landmark grade II* listed building from the 1930s with its multi-floor spanning steel curtain walling system. SWS renovated all steel windows and their ironmongery. They also provided new exact replica replacement windows for an elevation using specially laser-cut down mild steel window sections from the W20 range.

 

Earls Court Exhibition Centre, London SW5

 

Client
G Haslehurst Builders Ltd

Value
£150,000 approx.

Carried out
1990

An older project for SWS but an important landmark project as the main centre is scheduled for demolition and redevelopment. SWS were employed to replace the aging 1937 steel windows on the listed exhibition centre on a like-for-like basis and painfully replicated all detailing to the exacting standards of the planners and English Heritage.

 

Markfield Beam Engine Museum, London N15

 

Client
T&B (Contractors) Ltd.

Value
£8,000

Carried out
April 2009

The refurbishment of the Grade II listed museum building under a volunteer and lottery-funded programme of works presented SWS a particularly daunting task. They were employed to match the existing bespoke windows exactly and these had to be delivered and installed on time and on budget to ensure funding security.

 

Freemasons Hall, London WC2

 

Client
United Grand Lodge of England

Value
£1,000,000 approx.

Carried out
Phased works over a 15-year period

SWS still successfully continues to provide its windows and services for the Freemason's Hall grade II listed building in central London. As the headquarters for the United Grand Lodge of England, this landmark property requires the utmost attention to detail and replica windows from SWS's W20 range of galvanised and polyester powder coated windows.

 

Rossmore Court, London NW1

 

Client
Colliers CRE

Value
£214,000

Carried out
December 2008 - May 2009

The full height staircases on 1930s mansion blocks often get over-looked during redecorations. The original windows are not galvanised (unlike SWS modern replacements) and therefore corrosion sets in. Acting as main contractors, SWS replaced 4 staircases at this particular mansion block with W20 range galvanised and powder coated double glazed windows.

 

MOD Main Building, London SW1

 

Client
Skanska Whitehall

Value
£342,000

Carried out
March 2002 - December 2002

The MOD Main Building in Whitehall is an imposing London building and all 2494 of its metal windows required overhauling, chemical cleaning, re-glazing and ironmongery works carried out as part of a major refurbishment main contract. SWS carried out the works for Skanska Whitehall to this sensitive listed building under the strictest of security regimes.