Copyright © 2017 Crickle ECO All rights reserved.

Copyright © 2017 Crickle ECO All rights reserved.
Conversions and Extensions
How Much Does an Extension Cost?
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Extension costs vary widely depending on factors such as the size and how you intend to use it. Smaller, less complex extensions tend to be the most affordable.
Here are some common extension types and their associated costs, from budget to mid-range and to luxury, as well as the time required to complete them:
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EXTENSION TYPE
BUDGET (PER SQM)
MID-RANGE (PER SQM)
LUXURY (PER SQM)
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TIME REQUIRED
Single-storey extension
£1,000 to £1,600
£1,700 to £2,000
£2,200 to £4,000 and up
8 to 10 weeks
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Two-storey extension
£1,200 to £1,900
£2,000 to £2,200
£2,300 to £4,000 and up
12 to 16 weeks
Side return extension
£1,500 to £1,900
£1,900 to £2,200
£2,200 to £2,500
10 to 12 weeks
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Glass Extension
£1,350 to £1,950
£1,800 to £2,300
£3,000 and up
10 to 12 weeks
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Flat Pack Extension
£750 to £1,440
£1,275 to £1,800
£1,650 to £3,600
1 to 2 weeks
How Much Does a Garage Conversion Cost?
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Estimated Garage Conversion costs by type, size, and budget:
GARAGE TYPE AND SIZE
BUDGET COST
MID-RANGE COST
TIME REQUIRED
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Integral single garage
£5,000 to £7,500
£7,500 to £10,500
2 to 3 weeks
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Integral double garage
£9,000 to £11,200
£11,200 to £15,700
3 to 4 weeks
Attached single garage
£13,400 to £16,700
£16,700 to £23,400
2 to 3 weeks
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Attached double garage
£20,000 to £25,000
£25,000 to £35,000
3 to 4 weeks
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Detached single garage
£30,000 to £37,500
£37,500 to £52,500
3 to 4 weeks
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Detached double garage
£45,000 to £56,200
£56,200 to £61,800
4 to 5 weeks
How Much Does a Loft Conversion Cost?
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A loft conversion typically costs between £28,000 to £65,000 to build, however, you could easily pay up to £75,000 if you want a particularly large conversion.
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The estimated cost of a loft conversion by type and time required
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CONVERSION TYPE
ESTIMATED COST
TIME REQUIRED
Roof Light or Velux Conversion
£28,000 to £49,000
4 to 7 weeks depending on size
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Dormer Conversion
£35,000 to £75,000
6 to 9 weeks depending on size
Hip-to-Gable
£40,000 to £75,000
6 to 9 weeks depending on size
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Mansard
£45,000 to £75,000
8 to 11 weeks depending on size
How Much Does a Kitchen Refurbishment Cost?
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A kitchen Renovation will be the most difficult undertaking in terms of time spent and labour per square metre. They will also be the most expensive, considering all of the appliances and fittings you will need to purchase. This could include replacing floorings, windows, or knocking down walls to create an open space layout.
Average cost: £4,000 - £35,000
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How Much Does a Bathroom Refurbishment Cost?
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Bathroom refurbishments are labour-intensive with the biggest cost usually going on tiling and new bathroom fixtures. Generally, the cost for a bathroom refurbishment will range from about £2,750 to over £7,500 for the basic (lower end of the scale) to luxury bathroom (£8k plus).
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Average costs can range from: £2,750 - £12,000
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How Much Does a Replacement Kitchen, Cost?
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The cost for a new kitchen varies considerably depending on quite a few factors. The size of your kitchen, the condition it is in, as well as your desired materials can help to raise or lower your project’s fee.
Kitchen ITEMs
ESTIMATED SUPPLY COST
MDF kitchen units x 8
£900 to £2,000 (average cost £1,400)
Nickel effect doorknobs and handles
£2 to £15 each
Laminate Worktop
£90 to £250 per 3 metres
Laminate up-stand
£30 to £45 per 3 metres
Tempered glass splash back
£50 to £120 each
Stainless steel sink (single bowl)
£55 to £220 each
Chrome mono bloc tap
£55 to £180 each
Freestanding fridge freezer
£200 to £450 each
Electric Oven & Hob
£200 to £750 each
Cooker hood
£90 to £300 each
Dishwasher
£200 to £600 each
Washer/dryer
£300 to £550 each
Professional Labour fitting costs
£800 to £1,600 for 1 week of labour
Total estimated cost without appliances: from £1,386 to £3,505 including professional fitting costs.
Total estimated cost with appliances: from £2,376 to £5,905 including new appliances and professional fitting costs.
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How much does an Orangery Extension Cost?
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The average cost of a single story extension that’s 20m² is between £30,000 and £60,000. Compared to this, an orangery of the same size at a cost of £25,000 is quite a bargain!
Though the largest, most decadent orangeries can easily cost over £100,000, on average, costs will vary between £25,000 and £60,000. The wide breadth in expense is down to the various factors involved, largely the size of the extension. For example, a 4m x 4m orangery with basic finishes should cost around £25,000.
How Much Does a Conservatory Extension Cost?
Conservatory Style
Estimated Cost From:
Victorian
£15,000 - £25,000
Edwardian
£15,000 - £25,000
Gable End
£15,000 - £25,000
P - Shape
£13,000 - £25,000
Lean To
£13,000 - £22,500
How Much Does a Bedroom Renovation Cost?
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Bedroom renovations can be very cheap or very expensive, depending on how minimalist or grand you want it to be. Having an en-suite will definitely raise the price significantly.
Average cost for bedroom renovation is: £2,500 - £15,000
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How Much Does a Living Room Renovation Cost?
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Living Rooms are one of the more public/visible spaces in your home, so renovations here will certainly impress.
The average cost of a living room renovation is: £5,000 - £15,000
How Much Does an Outdoor Garden Makeover Cost?
From a simple grass garden to a patio, deck, and detailed landscaping, your garden renovation can rack up your bill.
The average cost of doing up your garden is: £2,000 - £50,000
Factors affecting House Renovation Costs
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The list of jobs and costs for a house renovation can be long and be influenced by many factors. Some of the main ones are:
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Size of the property
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Age and condition of the property
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Complexity of renovation
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Any structural work
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Building extension work
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Quality of materials, fixtures and finishing’s
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Decoration
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Where you live
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How Much Does a 3 Bedroom House Refurbishment Cost?
Item
Cost range
Average cost
New gas supply
£500 - £2,500
£1,500
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New heating system
£2,500 - £8,500
£5,500
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Rewiring
£4,000 - £7,500
£5,750
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Windows
£2,500-£6,000
£4,250
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Replaster walls
£1,500-£3,500
£2,500
Replaster walls & ceilings (re-skim existing)
£10,000 - £15,000
£12,000
Replaster walls & ceilings (hack off existing)
£20,000 - £28,000
£24,000
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Replace skirting throughout
£2,200 - £3,800
£3,000
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Paint walls & ceilings
£5,000 - £7,000
£6,000
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New downstairs toilet & sink (including tiling)
£1,000 - £1,500
£1,250
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New downstairs toilet & sink (including tiling)
£1,000 - £1,500
£1,250
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New kitchen
£10,000 - £25,000
£17,500
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French doors
£1,500 - £3,500
£2,500
Kitchen extension (12 m2)
£15,000 - £24,000
£19,500
Skirting for new extension
£200 - £500
£350
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Bi-Fold Doors
£ 3000 - £12,000
£9,000
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Knock down walls
£1,000 - £2,500
£1,750
TOTAL £76,900-£138,800 £107,350
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