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01604 591 211
07900 950 618

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Why Choose Rigas?

The team at Rigas Building Contractor are fully experienced and qualified to transform your attic space into a beautiful loft conversion. We can convert your loft space into an additional bedroom, bathroom, study, office, or playroom.

The builders at Rigas Building Contractor will assess your property and loft space, advise you of any planning restrictions and discuss your budget with you prior to undertaking any work. With us every loft is bespoke, tailored to a customer’s individual needs: we don’t do off-the-shelf conversions. The key to our way of working is letting you know exactly what to expect, from start to finish.

As specialists in completing loft conversions, by choosing Rigas Building Contractor you will receive an end product that surpasses your expectations, is completed to the highest standards and meets your requirements, specifications and budget perfectly.

If you would like to discuss a possible loft conversion please call our team or fill in our call back form.

Step  by step guide


When you call us we will arrange a free consultation at your home and will make a quick survey to your loft. Then we will advice you on what is most suitable for your house.

Planning Permission and Building Regulation Approval

Some loft conversions require planning permission but all of them require plans and building regulation approval. We can submit a planning application and Building Regulation application on your behalf.

Constructing your loft

When all drawings and structural calculations are ready and approved, the work begins:

erecting scaffolding

installing timbers and steel beams – Structural design is checked and verified by structural engineer

constructing dormers – choosing the best dormer for your roof is one of the most important decisions

installing the windows – Velux  roof windows with their 10 year guaranty and UPVC double glazed windows  in dormers and gables

installing staircase – staircases must comply and meet all Building Regulation

insulation and ventilation – we’ll fully insolate and ventilate your loft according to Building Regulation

plumbing, heating and electrical – You will be supplied with all relevant certificates

walls and ceilings- lined with plasterboards internally and finished with skim coat of plaster

installing doors and all joinery

fire regulations – all loft conversions are subject to fire regulations as part of building regulations

painting and decorating

completion certificate

How long will it take? (standard loft conversion)

Design, drawings and structural calculations – 2 to 3 weeks

Planning permission (if required) – 7 to 9 weeks

Building Regulations approval – 1 to 8 weeks

Construction of Roof windows loft conversion – 6 to 7 weeks

Construction of Box dormer loft conversion – 8 to 9 weeks

Construction of Mansard loft conversion – 10 to 12 weeks


Have a look at some of our recent loft conversions or go to our facebook page to see some videos of our work.

Loft Conversion Specialist in Northampton