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Browse Cellar & Basement Conversion specialists

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Future Structural Solutions is a building company based in East London. We specialise in structural repairs and basement waterproofing systems.

Latest homeowner review

Reviewed by Mike on 22/10/2018

We booked FSS Ltd after another builder let us down last minute & we urgently needed structural work done on our new home. Sullivan and his team turned up a couple of weeks later and worked hard and quickly to get the job done before we went off on honeymoon. They explained everything, did a thorough job, & didn't leave a mess. So much so that we got them in for another job later in the year. They weren't the cheapest quote we had but they were professional & reliable - ultimately, you get what you pay for!

Hi I’m Ionut a multi tradesman most of my customers know me as John. Me and my team are taking pride on our work we’re reliable , trustworthy and punctual and we work in a professional manner . Customer satisfaction is a priority for us that's why i always ask for customer feedback .

Latest homeowner review

Reviewed by Val on 11/12/2018

Brilliant workmanship, competitive price, would recommend

Simeon Beaumont High Quality Builder with 20 Years Experience in Plastering / Landscaping / Building & Joinery / Painting / Decorating / Extensions / Renovations

Latest homeowner review

Reviewed by Daryl on 17/4/2018

Simeon, did a very good job, which took longer than he thought due to the walls being terrible and not all the parts of the kitchen being there and having to be ordered and waited for. He always arrived on time and left the area clean and tidy. With all the problems he encountered, Simeon stuck to his quote even though he did bits and bats extra, I would recommend his company to anyone being lucky enough to receive a quote from him.

35 years experience in building and maintenance, fully insured, qualified engineer and project manager. All maintenance and repairs to property and gardens. Extensions, new builds and surveys. All trades provided. Collections, deliveries and removals. Personal assistant services, errands, small jobs.

Latest homeowner review

Reviewed by Oliver on 6/12/2018

Colm was very quick to come out and give us a quote and arrange a date to complete the work. Very friendly and professional when completing the work and left the area clean and tidy. Price was very good and will definitely use again in the future.

G and D building services. We have 30 years experience. Our projects have ranged from small works up to barn conversions. No job is too small. We are a very friendly company and offer advice when needed.

Latest homeowner review

Reviewed by Helen on 31/10/2018

Absolutely the best tradesmen I've ever employed. Extremely clean, polite and reliable. The work was faultless and I'm very happy with my bathroom. Would definitely employ them again.

Property Development Specialists All aspects of work undertaken Domestic & Commercial

Latest homeowner review

Reviewed by Alex on 27/11/2018

Really happy with the work done. really friendly helpful lads and very clean and tidy. no issues whatsoever and no hidden costs. will definitely use again.

If you are looking for one man to complete the job I am competent in all areas of construction. I'm honest, reliable, tidy and a good time keeper.Can creatively problem solve and negotiate budgets

Latest homeowner review

Reviewed by Anthony on 23/10/2018

Had old porch rebuilt and replaced. Work completed as promised to a very high standard. Also had front of house repointed and en-suite tiled and replaced. Kristian is really friendly guy who keeps you informed throughout. I would certainly use him again in the future if any additional work is needed.

Latest homeowner review

Reviewed by Henry on 3/10/2018

Very good job. They did everything that was asked and finished to a high standard. They finished everything on time and on budget. Was very happy with the work. I recommend this builder!

We provide quality workmanship to domestic and commercial clients. Our services; extensions, loft conversions, carpentry, roofing, brickwork, kitchens, bathrooms, plastering, decorating & landscaping.

Latest homeowner review

Reviewed by Susannah on 12/11/2018

excellent experience with Thring Construction, worked clean and kept to deadlines despite a few hiccups with the job coming up. Communication was good and final payment was exactly what was quoted, would definitely hire again.

I am hard working and reliable, I have been in the business 18 years and my work is second to none. I pride myself on my excellent workmanship and being able to give my customers the best possible price. I guarantee all my damp proofing work. I will come out at a time to suit you for a free no obligation quote.

Latest homeowner review

Reviewed by Lisa on 5/12/2018

I had my kitchen ripped out Monday which revealed rising damp on the external wall. Steve answered the ad straight away & came round the same night ( last night) to have a look. My plasterer is due tomorrow so having to wait for damp course would have set the job back & potentially could have had a kitchen free Christmas. Steve came round this afternoon & completed the work so that my kitchen is progressing as planned. Fab service.

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Cellar & Basement Conversion specialists - what you need to know

Basements and cellars are all too often missed opportunities, with the potential to add real value to your home. Conversions can unlock this potential, transforming underground spaces into useable rooms to suit your needs. Whether you’re looking for a guest room or granny flat, a larger kitchen or somewhere to let that gym equipment gather dust… a conversion may be the answer.

The precise nature of the conversion will depend on your plans for the space but regardless of its intended use, your new basement will need damp-proofing. Heating and ventilation systems must also be installed, to ensure the space is safe and comfortable.

Though many period properties will have basements, they are mostly cramped spaces intended purely for storage. Your builder may therefore need to dig down substantially to increase the head height. You will want to be sure your new basement isn’t claustrophobic and that any new rooms adhere to building regulations regarding minimum head height.

You may choose to extend your current basement beyond the original footprint of the house or building. With the right guidance, extending out beneath a garden can be a great way of maximising space. This may also allow your builder to incorporate light-wells into the design, which is an excellent way of introducing natural light into your basement. 

If there is no existing basement or cellar in your property, major excavation work will be necessary to create one from scratch. Along with any excavation, a new staircase will be added and your builder may also need to underpin any party walls.

Cost of cellar and basement conversion work

There are significant variables when it comes to costing – namely the extent of structural work required, access and ground conditions. The cost of damp-proofing, for example, will be dictated by the condition of your basement to begin with. If you’re looking at additional features, such as light-wells or bathrooms the extra work entailed will increase costs significantly.

For the most basic basement conversion, where no digging down or underpinning is required, it is advisable to budget £600-£1200 per square meter. If your basement floor needs lowering, costs will rise to between £1650 and £2200 per square meter. For basements created from scratch, quotes will be in the region of £2500 - £4000 per square meter.

The qualifications your tradesperson needs

Basement and cellar conversions can be carried out by reputable builders, often working in tandem with structural engineers.

Some builders will carry a card from the Construction Skills Certification Scheme. If your builder lists any specific qualifications it’s always a good idea to ask for proof of these before work begins.

There are various official trade bodies in the UK and it‘s advisable to check that your builder is registered with one of them – it’s not a necessity but is usually a good indication of how reputable they are. Each body has its own set of criteria, which must be met to qualify for membership.

You can find more detailed information about the different qualifications an experienced builder might have here

Planning permission for cellar and basement conversion jobs

Unless there is significant change to the external appearance of the building, planning permission is not usually required for basement or cellar conversions. This will obviously differ for listed buildings, or those in conservation areas.

You are likely to need planning permission where major excavation work is required to create a new basement, or where your basement is to serve as living accommodation. Further information can be found here

Insurance for cellar and basement conversion work

Public liability insurance is a requirement of any reputable tradesperson. This protects against any accidental damage to your home.

Questions you should ask your tradesperson

  • Do they have public liability insurance?
  • Do any of the planned adjustments require planning permission?
  • Does the basement design adhere to building regulations (namely ventilation / fire escape routes / ceiling height)?

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How our service works

  1. Create a job - it's free

    We'll connect you with the right tradesmen, from over 30 different trades.

  2. Get quotes

    Up to 3 tradesmen can provide a quote, but on average you'll get 1-2.

  3. Check ratings

    Look at each tradesperson's profile to see their ratings and reviews.

  4. Pick a tradesperson

    Use our homeowner checklist for extra tips on choosing a tradesperson.

  5. Job done

    Leave a rating for your tradesperson based on quality, reliablity and value.