Replacing Windows in a Grade 2 listed Building


Owning a listed property inherently instils a sense of pride in the owner; there is a desire to keep the original features but there is also the duty of care to ensure the building is maintained according to current building standards and legislation.

Replacing windows or doors in a grade 2 listed building is not an unachievable feat and one that is becoming commonplace due to a combination of factors; the benefits of having modernised fittings in terms of energy efficiency and an improvement in the skill and craftsmanship in the work that takes place, as well as a changing shift in attitude that believes restoration is in fact an act of preservation, rather than one that serves to destroy the authenticity of the building.


The benefits of upgrading are endless. Providing the work is undertaken by an approved and regulated contractor, there is huge potential to add value to the property. Not only this, there is an increasing focus on sustainable development; the effect on the environment, in the long run, is considered before any new builds are undertaken and it is imperative that the same care is taken when dealing with existing property. The reduction in energy consumption equates to lower costs for the property owner and improved insulation will noticeably lower noise pollution. Additionally, keeping a property well maintained by upgrading windows and doors can limit the risk of internal issues such as damp and condensation.


There is a process that must be followed when replacing windows in heritage property. If the property is freehold, the local council must give permission before the work is carried out. A leaseholder wishing to make changes would need to gain the permission of both the freeholder and the council before embarking on any changes to the dwelling.

Changes that are made without the relevant consents and permissions should be avoided as the property owner may find themselves having to return the property back to its original state. Those unsettled by this fact should instead feel reassured that there is such an emphasis on retaining the authenticity of listed buildings, and that change to heritage property is regulated in this regard.

It is of no benefit to block works for no sound reason and a typical local council will give consent if the works do not have ‘Any adverse effect upon the special architectural or historic interest of the building or its setting, are appropriate in terms of design, scale, detailing and materials and minimise the loss of the historic fabric of the building.’


With consent in place, the duty of care extends to ensuring that the work carried out is done so to the highest standard. The pressure of overseeing a task such as window replacement is not one that many property owners wish to undertake personally, and this amplifies the importance in ensuring that the nominated contractor has experience in undertaking works in listed buildings, as well as a sound knowledge of current building regulations and health and safety legislation.

Glass-rooms are a Certass government authorised company meaning work is regulated to ensure the highest possible standards. The company has over 21 years’ experience and a passion for restoration that preserves the individuality of a property. Each project is handled with tailored care and attention; from consultation to project management through to completion.


The Benefits in using Glass-rooms are:

  • Bespoke designs that are made to measure
  • A+ energy efficiency / thermal performance
  • Wide choice of colours and designs
  • Increased security
  • 10 year guarantee
  • Manufactured in Britain
  • Cash back on new installations
  • Environmental Recycling of old windows

Clients that are keen to have works undertaken but are unsettled by the application and approval process will be expertly guided by Glass-rooms to ensure that all permissions have been secured before the project goes to site. With a bespoke approach to each client, input can be as involved as the customer wishes, working alongside our contractors every step of the way, or allowing our experienced team to take complete control.

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Contact us for a free consultation by emailing or phoning 01375 644752.