Dormer Windows and Staircase Construction

At TIG excell we have completed many dormer conversions to help our clients add space to their loft or top floor.

A dormer window is a vertical window that is located within the slope of a roof. They have many advantages, the first being the aforementioned space increase they provide, which is particularly sought after in a city like London. When installed correctly, dormer windows can add value to a property, often providing much needed additional light and ventilation to loft areas. A dormer window can completely transform the top floor of a house, greatly improving its functionality.

Our meticulous team always makes sure that architectural drawings are plausible and relevant, and we take pride in communicating with our clients properly at each stage of the process so that they know exactly what to expect. We don’t cut corners and our small, specialised team allows us to oversee each part of the process so we can take full responsibility at every stage. Whether you know exactly what you want or you are more open to ideas from our design team, our structural engineers are experts at creating safe, useable spaces. As well as dormer windows we are also skilled when it comes to the installation of velux windows and skylights. With most of our work coming from word of mouth, we go the extra mile to fully achieve customer satisfaction, and we will never hit you with hidden charges.

Based in Feltham, South-West London, TIG Excell have been working with domestic and commercial clients to provide comprehensive construction services for many years. We have invested heavily in training and boast a variety of qualifications including NVQ level 2 & 3 in heating and we are gas safe licensed. We are your one stop shop for construction services in London, with the flexibility to work on many different types of jobs. Contact us for a free quote and find out what we can do for you today!




Frequently Asked Questions

Loft Conversion

Planning permission can be a tricky area, and requirements change depending on the local authority you are dealing with. We can save you a lot of trouble by sorting this out ourselves and including this service in the final price, or you can have as much involvement in the process as you like. Our professional experience means we can offer plenty of advice on what’s realistic. We can do everything from the initial application, organising building control and visiting the site, or we are happy to take on projects where planning permission has already been granted.


Category: Conservatories, Extensions, Loft Conversion, Property Maintenance, Property Renovation

← Can you help with planning permission?
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This is not a requirement, but we can work from rough concepts or technical drawings that our client already has. Alternatively, we can work with an architect or structural engineer to turn your ideas into formal drawings.


Category: Basement Conversions, Bathroom Design, Conservatories, Extensions, Kitchen Design, Loft Conversion, Property Renovation

← Do I need to have designs or architectural drawings already?
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Absolutely. We take great care in ensuring your property is protected from damage from the time we start our work to the completion of the project. Before we begin we always ensure that our client’s floors, walls and furniture are all protected. If needed, we will set up a skip in a way that protects your property so that everything is well contained and easy to remove when our work is over.


Category: Basement Conversions, Bathroom Design, Conservatories, Extensions, General, Kitchen Design, Loft Conversion, Masonry, Plumbing, Property Maintenance, Property Renovation, Steam Showers, Underfloor heating, Wet Rooms

← Do you clean up after yourselves?
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We make sure that every project is fully compliant with british building regulations. Our qualifications, experience and working practices make sure that your home is fully compliant and completely safe; from electrics and foundations to plumbing and ventilation. Where necessary, we make sure that the designs calculated by architects and structural engineers are correctly implemented to carry out your project to the highest standard.


Category: Basement Conversions, Conservatories, Extensions, General, Loft Conversion, Property Renovation

← Do you meet building regulations?
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It depends upon the type of conversion you want and the planning permission rules of your local authority when it comes to ‘permitted development.’ Our team can provide experienced advice before the project starts and we always make sure the building is fully compliant and certified.


Category: Loft Conversion

← Do I need planning permission for a loft conversion?
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We organise our own scaffolding, and once it’s up we get on with the job as quickly as possible. We won’t leave it there for longer than necessary and we will only erect scaffolding when it is essential to the project.


Category: Loft Conversion

← Do you provide scaffolding?
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We can install many different kinds of skylights including velux windows, our team can also provide major structural changes to the premises if required to fit new lighting and fittings to the building.


Category: Loft Conversion

← Can you install skylights?
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The type of insulation we use is dependent on building controls and the specification given by the architect- as well as the size and joists of the loft- but in many cases we can be flexible.


Category: Loft Conversion

← Can you insulate my loft?
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Installing heating in an extension is a standard part of the projects we complete. We are experienced and highly qualified plumbers and electricians, so we can make sure the that the best possible heating system and insulation are put in place. If you have an en suite in your loft conversion we can help make sure that your heating system is up to the task and upgrade it to cope with the extra demands.


Category: Loft Conversion

← Can you put heating in my loft?
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A standard loft conversion will take between four and six weeks. However, we can get involved at any stage, from helping you come up with ideas, to working with you to create technical drawings, to finishing the entire project to your complete satisfaction. We will be able to give you an accurate indication of completion time for your specific project with the contract.


Category: Loft Conversion

← How long does a loft conversion take?
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This is a specialty of ours. Our experience and qualifications as plumbers, electricians and tilers means we can adapt to fitting luxury ens uites and wetrooms in all kinds of places. We can hook this up to your existing plumbing system and make any upgrades that may be need to cope with the demands of an extra bathroom.


Category: Loft Conversion

← Can you install an en suite in my loft conversion?
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Any work we need to carry out to repair or improve the roofing is carried out in house and included in the price. As we can also carry out all the interior work, from electrics and plumbing to plastering, we can keep the project on schedule, on budget and up to a very high standard.


Category: Loft Conversion

← Can you carry out any work that is needed to repair or improve the roofing?
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We can remove a chimney breast to give you more usable space in your loft. We can also close up fireplaces on lower levels and carry out any other changes associated with this. Of course, we comply with all of the relevant building regulations while doing so.


Category: Loft Conversion

← Can you deal with an existing chimney breast?
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It’s a good idea to have bathroom facilities on every floor, especially in households with family around. We can help with practical advice, taking into account the practicalities of adding an en suite and making sure that the project is focussed on your needs. We can help you realise your dream loft conversion, and even provide the skills and supplies to move and fit plumbing to a new section of your house. We will handle the structural works and project management from start to finish, leaving you to enjoy your revitalised home.


Category: Loft Conversion, Plumbing

← Do I need an en suite in my loft conversion?
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In some cases, an extra bathroom may require some plumbing upgrades. Not all systems can cope with the extra pressure and quantity of water needed by an additional, high up bathroom. As highly qualified and experienced plumbers we can find the best way to make sure that your heating system meets the needs of your home.


Category: Bathroom Design, Loft Conversion, Plumbing, Steam Showers

← Do I need to upgrade my boiler?
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We can source a huge range of windows to meet the needs of your project. We can get hold of many kinds of wood, PVC and skylight windows from our relationships with a number of industry suppliers. Whether you need a specialised design to match the rest of your house, or if you’re looking for something different, just let us know.


Category: Conservatories, Extensions, Loft Conversion, Property Renovation

← What materials can you use for windows?
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