Basement conversions fluctuate in cost depending on project scale, professionals hired and location. If your basement conversion doesnât need any construction work, then it should cost relatively little. However, the majority of projects at least need damp proofing and water proofing work, if not insulation, heating, electrical work and more. This means that even smaller basement conversion projects are still relatively expensive. The average UK cost ranges from £30,000 - £50,000.
| Avg. price low | Avg. price low |
|---|---|
| Avg. price | Avg. price |
| Avg. price high | Avg. price high |
£46500
£34875
£23250
£11625
£0
| Labour cost | £28,000 | |
| Material cost | £10,000 | |
| Waste removal | £2,000 |
Requests for quotations in Northampton in October 2024
Requests for Basement renovation quotations in Northampton in October 2024. 0% change from September 2024.
Requests for Basement renovation quotations in Northamptonshire in October 2024. 0% change from September 2024.
Northampton - NN2
Enquiry from: Aaron A
Start Date: Immediate
tanking/plastering/electric sockets/radiator are you the property owner: owner of the property property type: terrace how many rooms are currently within the basement: 1 room how many rooms do you wan...
Northampton - NN1
Enquiry from: Craig L
Start Date: Immediate
i’d like a quote to get the cellar damp proofed and a window installed to comply with building regulations and also a price for an entire refurbishment are you the property owner: owner of the prope...
Northampton - NN1
Enquiry from: Mark K
Start Date: Less than one month
quote for cellar conversion are you the property owner: owner of the property property type: semi detached how many rooms are currently within the basement: 4 rooms how many rooms do you want to have...
Northampton - NN1
Enquiry from: Katt J
Start Date: Less than one month
we would like a quote for the conversion of two existing basement rooms to habitable living space. are you the property owner: owner of the property property type: terrace how many rooms are currently...
Northampton - NN1
Enquiry from: Dolli R
Start Date: Less than one month
i'd like my cellar tanked out to be able to use it as a craft room. are you the property owner: owner of the property property type: terrace how many rooms are currently within the basement: 1 room h...
Northampton - NN1
Enquiry from: Maddy R
Start Date: Less than one month
hi, i currently have a partially dry cellar but i would like it converting to a completely dry room as it is affecting the rest of the house. some of the ceiling needs replacing as it has fallen in, ...
Northampton - NN1
Enquiry from: Alex H
Start Date: Less than one month
we would like to convert the cellar into a clean dry storage room. doesn’t need anything fancy, but it would need to be properly damp proofed, floor levelled, ventilation etc to make it a safe space...
Northampton - NN1
Enquiry from: Janet G
Start Date: Immediate
tanking of 2 room basement. possible more remedial work on ceiling etc. are you the property owner: relative of owner property type: terrace how many rooms are currently within the basement: 2 rooms ...
Northampton - NN1
Enquiry from: Simon E
Start Date: Less than one month
we are looking at converting our cellar into a cinema room /lounge. size of cellar is approx 10.5ft x 16ft are you the property owner: owner of the property property type: terrace how many rooms are...
Northampton - NN2
Enquiry from: Dylan M
Start Date: 1 to 3 months
hi i would like a quote on a cellar conversion at this above property. time scale: 1-3 months please call to appoint
Northampton - NN1
Enquiry from: Jayant S
Start Date: Immediate
Foul sewage smell is coming from cellar to the ground floor shop . Sewage sludge smell is escaping from small hole on the floor. There is no excess to the celler. Stairs are removed and floor concer...
Northampton - NN5
Enquiry from: Barbara P
Start Date: Immediate
Small cellar conversion.
Northampton - NN5
Enquiry from: Judith P
Start Date: Less than one month
Cellar conversion Tidy up to have as an extra room. Time scale: Less than one month
Northampton - NN2
Enquiry from: Tim E
Start Date: Less than one month
I live in a basement flat which had a dpm fitted when converted approx 20 years ago that has now failed in one corner. The works would entail the removal of plaster, re-proofing and re-plastering. I'v...
Northampton - NN1
Enquiry from: M
Start Date: Immediate
Hi, We have a cellar - 14.35 meter squared It has had a sump pump already installed with drainage and has basic electrics down there, we currently have the tumble dryer down there. We would like ...
Northampton - NN1
Enquiry from: James H
Start Date: Immediate
We have a cellar that we would like to have tanked. We were wondering if someone would be available to come and take a look and then provide us with a quote?
Northampton - NN1
Enquiry from: D
Start Date: Immediate
hello there i would like to convert my basement into a small room some work has already been done polysytrene insulation on walls cealing lights ect. would need window and flooring kind regards d...
Northampton - NN1
Enquiry from: Douglas S
Start Date: Immediate
Cellar conversion Time scale: Immediate
Northampton - NN2
Enquiry from: Scott M
Start Date: Immediate
Double compartment cellar conversion
Northampton - NN1
Enquiry from: Steve H
Start Date: Immediate
Full cellar conversion into a treatment room. No damp proofing or ventilation at present.
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Whether a basement is worth converting depends on your location and how much work it requires.
A basement conversion can be a great way to add space to your home, and can raise your property value. However, it can also be one of the most expensive ways to do this, so if there’s a possibility to extend your property, or convert a loft or garage, it’s worth considering this first.
You should also compare how much your basement conversion will cost with the amount it could raise your property value by. In some areas, a quality basement conversion could earn you money in the long run, but in others it’ll only cost you. If you’re planning on staying in your property for a long time this might not matter to you, but if it’s not your forever home then it’s an important thing to think about.
If your basement has a cavity drain membrane, it’ll need a pump to move water away from the exterior of your basement and prevent flooding.
Sump pumps can be noisy, but they don’t have to be. Generally, if you have a well-designed pump that’s installed correctly, you shouldn’t find it a problem. For best results, hire a skilled, experienced professional to supply and install your drainage system.
The best way to go about converting a basement depends on its current condition and what you’d like to use it for.
If you’re happy with its size and structure, and just want to turn it into useful storage space, then your project shouldn’t be too complicated. You’ll simply need to make sure it’s damp proof and waterproof – either by fitting tanking or a cavity drain membrane with a sump and pump. You may also need to invest in new flooring, fit basic lighting, and plaster and paint the walls and ceiling.
If you’d like to turn your basement into living space, then you’ll need to think about ventilation, insulation and heating. If this involves creating a kitchen or bathroom, you’ll also need to incorporate plumbing.
If you want to extend your basement, add lightwells, or fit windows and a sunken garden, this makes things much more complicated. You’ll probably want to hire an architect or basement conversion building specialist to help you with the design and planning, and you’ll need a structural engineer to help you ensure your property is sufficiently supported.
Windows or lightwells can be a great way to introduce natural light into your basement, making it a more valuable, enjoyable space. However, they’re not always an essential requirement.
It’s important for your basement conversion to meet ventilation and fire safety building regulations. Windows can be a good way to do this, but they’re not the only option. Stack or mechanical ventilation, or ensuring that stairs up from your basement connect to an exit can be a good alternative.
So, while windows can be a great asset to your basement conversion, if you can’t afford them or they’re not structurally feasible, you can still create a basement conversion without them.
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