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Take a look at our Cellar & Basement Conversion specialists profiles, read reviews and request quotes directly.

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Here at Banga Decoration General Builder we welcome the chance to work with you on your project we have over 11 years experience within the building trade and are well respected within the area. Our skilled tradesmen are more than willing to go the little bi

Latest homeowner review

Reviewed by Anjeli on 12/2/2019

Excellent communication, perfect timing and very hard working individual. Made me feel at ease and explained things clearly as I don’t understand many building terms etc. Strong Work ethic and very honest/reasonable prices. Gets straight to the point , goes out of his way to help and even supported me with Extra bits that needed doing Very highly recommended- thank you!

Our residential team can cover areas such as overall building construction, landscaping, patio, driveways, fencing, lighting & technology, and groundworks. We treat your home just if was ours! We provide our customers with the highest standard an quality we possibly can. Check feedback from our customers. Get in touch today with our friendly team!

Latest homeowner review

Reviewed by Ian on 2/9/2020

Nathan and his team worked quickly and efficiently together as a good team. Their standard of work was good. Although they did not arrive when expected, they finished in the allotted time and cleaned up well after the job.

MH Design And Build LTD was formed in 2013. Based in Rotherham, we service Doncaster, Sheffield and other South Yorkshire areas. Nothing is more important to us than our reputation which is why we are a reliable, friendly and customer-driver contractor. Our ethos is fantastic customer service, quality workmanship and highly-competitive rates. We have a number of extremely professional and skilled tradesmen that we employ. As a company we have a combined total of 30 years experience from loft conversions to extensions and new builds.

Latest homeowner review

Reviewed by Peter on 2/11/2019

I needed a house re-rendering and MH Design & Build was excellent. Reliable, reasonable, dealt with the inevitable snags with skill, recommended Parex, which has made the house look like new - definitely recommended based on my experience.

hi there welcome to my profile our business is very smal run by myself and dad who have 10+ years in the building trade. no job is too big or too small free no obligation quotes we undertake any jobs from stone walls, patio's, plastering many other jobs

Latest homeowner review

Reviewed by Claire on 26/10/2017

A quick response, work completed the next day. A nice clean finish.

Our company was established in UK 9 years ago,Before that we have worked in Portugal,France.We are experienced in refurbishment work,all carpenter work,bathroom fitting,all kinds of external insulation and rendering finishes.We are all certificated.Our work is supported with references. We will do our best to satisfy everyone with the quality of the work we can offer.

Latest homeowner review

Reviewed by sarj on 20/10/2020

found Slavi by chance and have never used rated people before. Slavi and his team were amazing. I tried him out on a couple of smaller jobs before letting him render the back of my house. A fantastic job, so many compliments from friends and family. His team then also paved a foot path in the garden and the icing on the cake was the outdoor tiling which now looks something out of grand designs. I did not have to haggle on price as it was very fair and his guys turned up when he said they would. A fantastic

Quality & Pride Professional Building Services

Latest homeowner review

Reviewed by richard on 14/8/2015

Steve and his team did a thoroughly professional job. He arrived everyday on time or early and did not miss a single day. He advised us on various aspects of the work. We were very comfortable to have Steve in the house and we liked his work so much that we asked him to replace our windows too. You can only speak as you find and therefore I can only agree with the positive reviews on this site..

TLT Finishing & Building Services Ltd offers multi trade services. We are a family run company with 15 years+ experience in the industry and specialise in building works, bathroom fittings, extensions + K Rend. We care about the finer details and strive to provide you with the best experience when it comes taking that next step in creating your perfect home. We are a registered limited company who are fully insured, we also offer 24/7 support + after care so you can put your mind at ease. Please get in touch, we'd love to hear from you!

Latest homeowner review

Reviewed by Zac on 11/7/2020

An outstanding group of workers. Not only did they finish this complicated, fiddly job ahead of time but also under budget. They were clean and tidy, punctual, informed me what they were doing at every stage. I highly recommend them. Thank you.

Operated by myself and 2 family members for more than 40 years, customer satisfaction is important ,which is reflected in the satisfied customers we have provided our services to ,achieving five 5* ratings. We can assist with design /structural calcs.

Latest homeowner review

Reviewed by Sean on 2/10/2020

John, Rob and Scott were the perfect team for the job. John not just quoted on the garage but guided me through the decisions which were needed and explained the process accurately. The work itself happened when he said it would, with people on site every day grafting away neatly and efficiently. The results are fantastic and I couldn’t be happier. I would highly recommend these guys for your next project.

Welcome to our profile, Commercial and Residential Refurbishment and Flooring Contractors We are a business run by a skilled floor layers, with over 10 years of experience in various flooring projects from residential to commercial properties. We specialise in: · Resilient flooring (Linoleum, LVT, Rubber) · Safety vinyl in wet areas · Carpets · Carpet tiles · Wooden flooring We only use the best materials to prepare the sub floor and bond the floor coverings to ensure it not only looks good but lasts long as well. Our services offer free site survey/ quotation, floor fitting with or without supplying the materials. We are proud to offer high quality services at competitive prices. Planning our time efficiently we aim to get the jobs done soon after quotation/ tender approval. We cover most of the London and Essex areas.

Latest homeowner review

Reviewed by Ayesha on 2/9/2020

Very committed, flexible and fast

MS Building

Cellar & Basement Conversion

I am a sole trader and have over 10 years experience. I specialise in Carpentry, Painting & Decorating and many more..

Latest homeowner review

Reviewed by Raja on 24/7/2020

Guy was great patient kept his word and did additional services will definitely will hire again. Trustworthy guy.

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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.

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