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Last updated on May 29th, 2023

Conservatory refurbishment cost guide

To help you budget for this value-adding project, we’ve put together the following guide to the average conservatory refurbishment cost.

If your conservatory has seen better days, you will likely be considering a refurbishment project in the near future. A beautiful conservatory can add value to a house and be a wonderful space to relax in. There are lots of different ways you can refurbish your conservatory, and they all have different advantages and costs. Help budget for the job, with our guide to the average conservatory refurbishment cost.

Conservatory refurbishment cost

Conservatory renovation cost

There are many different ways you can refurbish a conservatory. You may simply wish to give it a new look and feel, or you might want to convert your conservatory into a living space.

In recent years, homeowners realising the ease at which ageing glass or polycarbonate roofs can be replaced has seen a rising trend in conservatory refurbishment projects. Updating your conservatory roof can make all the difference and often sole the issue of the room being too hot in summer and freezing in the winter. The cost of updating your conservatory roof will be between £3,000-£5,000, although prices will be higher if you want a solid roof installed. The cost to refurbish the conservatory including the roof, window and walls will usually fall within the range of £4,000-£8,000.

Alternatively, you may want to reclaim the space entirely and turn the conservatory into a standard room in your home. As for the question of how much to convert your conservatory into a room, you’re looking at a price range of £5,000-£25,000 depending on your requirements.

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Factors that influence conservatory refurbishment costs

Type of refurbishmentUnitCost rangeAverage cost
Roof replacement - Solid roof
Per project (with materials)
Roof replacement - Glass roofPer project (with materials)£3,000-£5,000£4,000
Roof insulationPer project (with materials)£895-£1,850£1,350
Roof, windows & doors replacement
Per project (with materials)£4,000-£8,000£6,000
New conservatory build
Per project (with materials)£15,000-£30,000£22,500

Our costs are ballpark averages – get a local tradesperson to quote now

As there are many different ways that you can refurbish a conservatory, there are also many factors that can influence conservatory refurbishment costs. The following elements will help you determine the price range for the project:

  • Size – Costs will be higher if you want to extend the conservatory beyond its current boundaries. Planning permission may need to be sought in this case.
  • Style – Prices will range depending on the type of conservatory you want, whether that’s Edwardian or lean-to.
  • Roof type – A solid roof will cost in the range of £5,000-£7,000 while a glass or polycarbonate roof will be cheaper. Read our guide to conservatory roof replacement for more advice.
  • Prep work required – Are you prepared to move the furniture from the room and take up the flooring before the work gets underway? A conservatory refurbishment team can help you with this if not, just remember to factor it into your budget.
  • Location – As with all home renovation projects, costs will depend on location. Prices will usually be higher in the South than in the North of the UK.
  • Additional factors – Additional requirements such as lighting, plastering, painting, decorating and heating will add to the total cost.
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How much does it cost to have a conservatory roof insulated?

conservatory refurbishment costsPolycarbonate and glass roofs may be visually pleasing, but they don’t add much in the way of thermal insulation. Adding layers of high quality, reflective film and thermal webbing will help transform your conservatory into a room you can use all year round.

The average cost for conservatory roof insulation including supply will sit between roughly £895 and £1,850 depending on the quality of materials and size of the roof.

Do you need planning permission to change a conservatory into a room?

Generally speaking, most projects of this nature won’t require planning permission. Since conservatories are typically located at the rear of the house, it won’t have an impact on neighbouring properties or nearby roads.

However, if you are planning to extend the conservatory space out into a bigger room, it’s best to apply for a Certificate of Lawfulness from the council to be on the safe side.

Is it cheaper to refurbish my conservatory than rebuild it?

The conservatory refurbishment costs will ultimately depend on your ambitions. In some cases, it can be as cheap to rebuild a new style extension than refurbish a conservatory.

If you’re making considerable structural changes, it may be worth asking your builder for a quote to rebuild rather than refurb so you can make a decision on the best route to pursue.

Can I refurbish a conservatory by myself?

Conservatory refurbishment projects require a lot of time and effort to complete. There are many parts of a conservatory refurbishment you can complete by yourself safely without much hassle. For more complicated refurbishments (glasswork, adjustments to foundations, carpeting), we recommend contacting a professional tradesperson if you have limited experience in home refurbishment.

A good conservatory refurbishment firm will take up any carpets or flooring carefully, take away and store and re-fit on completion rather than leaving it exposed to weather damage when the roof comes off.

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Claims are sourced from a survey conducted by Deep Blue Thinking on a nationally representative UK sample in November 2021. *8 out of 10 people would choose a trade endorsed by Checkatrade compared to one that isn’t endorsed.

Working with professional estimators, we collate cost estimates for the common home improvement and repair jobs in the UK.

All the costs are estimates only. For accurate costs for your particular requirements, you are encouraged to reach out to professional tradespeople to receive a quote for your job.

Our estimators are Chartered Members (MRICS) of the Royal Institution of Chartered Surveyors and Members of the Chartered Institute of Building (MCIOB). See full disclaimer.

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