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Find Local Basement Conversion Company Near Me in Alton, Hampshire

There are 447 Cellar & Basement Conversion specialists in Alton, and last month we helped homeowners get quotes for their home improvement jobs.

Browse Cellar & Basement Conversion specialists in Alton, Hampshire

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Stuart Allen

Cellar & Basement Conversion in Alton

(107) Read reviews

Having left the HM Forces in 1985, I have 30 + years experience with advanced qualifications in Bricklaying, Carpentry, Joinery and Furniture making. I am also a member of the Institute of Carpenters. I am also trained to advanced spray painting by the Dulux Academy.

Latest homeowner review

Reviewed by David on 5/5/2019

Stuart is fantastic person and a fantastic tradesmen. He tiled my bathroom and the work was of an exceptional quality. I would highly recommend him to anyone.

a.n construction

Cellar & Basement Conversion in Alton

Latest homeowner review

Reviewed by Joe on 19/8/2014

Neil responded very quickly to my job, came and priced the job and agreed a state date and price within two hours. He arrived on time and completed the job very professionally and quickly. I can high recommend a&n construction to any one. Thank You.

Dukes construction

Cellar & Basement Conversion in Alton

I am a self-employed builder at least 30 years experience city & guilds in carpentry all aspects of building work. Property maintenance internal and external. If you want something built in special or different I can build it for you. Southampton area

Latest homeowner review

Reviewed by NATHANIEL on 16/12/2016

Simon was good to work with, the work carried out was to a good standard.

Established over 80 years ago London Builders are FMB & NHBC registered & operate in Greater London providing a comprehensive range of services for residential properties from design and construction through to refurbishment, repairs & re-decoration.

Latest homeowner review

Reviewed by Brian on 24/4/2017

They were really professional compared to the other builders that came and contacted me. The Project Manager was also on hand to answer any questions I had and offered me adviced on how best to move forward. We ended up refurbishing our entire bathroom which is looking great now. I would highly recommend London Builders.

C Marks Construction

Cellar & Basement Conversion in Alton

C. Marks Construction is based in Portsmouth, Hampshire and is a professional and reliable building company with over 30 years of experience. OFFERING and friendly service. You can be assured of a reliable, quality service, on budget & on time.

Latest homeowner review

Reviewed by Elizabeth on 12/6/2015

Brilliant work, great guys, we are so pleased with the whole process which we understand is unusual at the end of a large loft conversion project! Chris was friendly, always kept us in the loop, kept a tidy site and ran to budget and timescale pretty much! Have been recommending to friends and family already! Thank you Chris!

Oliver Deyoung

Cellar & Basement Conversion in Alton

(104) Read reviews

"with 20+ yrs of experience I pride myself on delivering high quality maintenance projects on time and within budget. Contact me today and see how i can help you to complete your projects as you imagine, regardless of size big or small"

Latest homeowner review

Reviewed by Moira on 18/3/2025

All Aspects of Painting and Decorating ,Building Works, Small or Large, Extensions, Conversions, Garage Conversions. Landscaping and Fencing Works.

Latest homeowner review

Reviewed by Nicholas on 24/8/2016

All good

Here at Ironwood Carpentry & Joinery we aim to provide a friendly professional service always striving to deliver the highest quality to our customers. We specialise in 1st and 2nd fix carpentry but also do kitchens, renovation work and garden structures.

Latest homeowner review

Reviewed by Lisa on 5/2/2017

Thank you for helping us! It works perfectly :)

All aspects of building work undertaken 20 years experience

Latest homeowner review

Reviewed by Adam on 10/4/2025

Liam and his team at LTR were very clear in their communication, pricing, and the work carried out to a high standard of professional service. I will be using them again, and I would recommend them.

JH BUILD

Cellar & Basement Conversion in Alton

A skilled builder honest and reliable . I put effort and seriousness in everything I do. I like to make all my customers happy! I have experience in: home improvements ,tiling/bathrooms repairs, furniture refurbishment, roofing,painting,fitting laminate flooring, Wood flooring,herringbone flooring,vinyl flooring , ,plastering,roofing.My aim is to provide the best service to you and your home. I guarantee my work is professional and the job will completed in a tidy and timely manner.

Latest homeowner review

Reviewed by Leila on 29/11/2024

Bathroom fitter kitchen fitter General builder no job to small Your home respect always In trade 30 years learned on jobs as a young man older wiser professional work with pride

Latest homeowner review

Reviewed by Terry on 18/9/2024

Derek contacted me straight away to arrange a visit and quote. Straight away Derek’s presentation and attention to detail pleased me. This project was to update my mother in laws downstairs shower room, Derek recommended a retail outlet for the equipment with assistance over choices. We chose and accepted his quote, which included dismantling the existing fixtures and some build parts of the cramped room. All waste was removed, the project was completed 100% in just over 6 days to satisfaction, recommended.

Bramley Man

Cellar & Basement Conversion in Alton

I am a City and Guilds qualified builder with 25 years experience in a wide range of building projects. I work closely with my customers to ensure satisfaction and have high standards of workmanship. I will liaise with building control where necessary, to ensure compliance with building regulations.

Latest homeowner review

Reviewed by Amir on 13/4/2025

Reliable and trustworthy. Punctual and keep high standards of work

bs building service

Cellar & Basement Conversion in Alton

B S Building Services

Latest homeowner review

Reviewed by Daniel on 17/5/2025

Came promptly and was quick to provide a competitive quote. Arrived and spent time making sure everything was covered and did an amazing job. The replacement and repair was done to a much higher standard than expected and I would not hesitate in recommending and using Bartek again.

self employed

Cellar & Basement Conversion in Alton

Hi im Russell, I joined rated people 7 years ago. I am honest ,hard working and a very reliable person who takes alot of pride in my work.If im lucky enough to win your job,im sure that u will be happy with my work.

Latest homeowner review

Reviewed by Jamie on 26/7/2021

Russell did a great job, quick and at a good price.

Specialising in bathroom fitting we cover all aspects of home renovations down to the smallest of maintenance and repairs. Clean, and affordable we have a small team of professional builders who are dedicated to ensuring you are completely happy and comfortable in your home. From plumbing, electrics and carpentry, to plastering, tiling and painting and decorating, there’s no need to look any further.

Latest homeowner review

Reviewed by Celso on 5/2/2023

Great turn arround, fair budget, great service.. Strongly recommend..

BA Projects

Cellar & Basement Conversion in Alton

Hi, I've been in the trade of building for 20 years with a keen eye to detail. I'm reliable and honest. I'll will always keep you updated on the progress of any project and always make time to ensure that my customers are happy during and after the projects are completed. Assuring you of my best intentions Darren

Latest homeowner review

Reviewed by Christine on 9/4/2025

Darren did a fantastic job fitting a strong shelf in the kitchen, a new work surface in the external office and removing the decking around the office and making good. He was helpful, friendly and carried out the work just as we instructed. He worked professionally, arriving on time and leaving everywhere clean and tidy. He went a step further as well, helping with a few small jobs that needed doing. We would happily recommend him.

CES COATING LTD

Cellar & Basement Conversion in Alton

Our team has the skills, experience, qualifications, and desire to ensure we deliver a high standard of workmanship and complete customer satisfaction.

Latest homeowner review

Reviewed by Tim on 11/5/2025

Mr Fixer

Cellar & Basement Conversion in Alton

I'm a sole trader,with 9 years experience and orientated to a quality finish of every job.

Latest homeowner review

Reviewed by adam on 25/1/2024

James Lepp

Cellar & Basement Conversion in Alton

J&S Developments provides all your property needs to a professional and high standard.

Latest homeowner review

Reviewed by Willis on 1/11/2017

Done the job as discussed and for the right price. Would use again

Roofline Home Improvements specialise in all roofing and property maintenance, with customer satisfaction being our highest priority. check out our reviews.

Latest homeowner review

Reviewed by Ross on 22/3/2020

A great service from start to finish.

Under 1 Roof

Cellar & Basement Conversion in Alton

Here at Under 1 Roof, you can find all the trades you need! With a combined experience of over 25 years in the building trade, we offer all aspects from groundwork all the way up to roof work! Plumbing & electrical work included. We are fully qualified, accredited, & insured to complete any project you may have! Please check our reviews & pictures of previous work completed! Thank you, Chris & James, the brothers behind Under 1 Roof!

Latest homeowner review

Reviewed by Sandy on 20/3/2025

Unfortunately Under 1 Roof were too busy to quote within my time frame so I cannot comment on their work. James sent many photos of previous projects when asked and it would definitely approach them in the future.

CSM Developments

Cellar & Basement Conversion in Alton

(131) Read reviews

We are a family run business that cover all aspects of building work, carpentry, landscaping, garden maintance, maintance, waste clearance. We work to ensure your projects are carried out to the highest standards. We offer a free quotation and provide x1 basic template drawings of the plans in mind. You will also benefit from our trade discount. Communication is the key and our standards are high from start to finish. As an extra initiative we take pride in providing a free safety and security home check for the vulnerable and elderly. I.e doors and window locks, spy holes, window alarms, door chains and smoke detectors.

Latest homeowner review

Reviewed by Jack on 14/3/2025

RA Building Services

Cellar & Basement Conversion in Alton

Hi I’m Roly from RA Building Services ,I’ve been a general builder in the trade for over 20 years ,I cover most trades including renovations ,plastering ,painting .Customer satisfaction is extremely important to us .We strive to give an excellent job for an affordable price .

Latest homeowner review

Reviewed by CHRISTOPHER on 26/10/2024

RA were excellent. Fast in response. Reasonable on cost. Worked to a high standard and were pleasant people to work with. Highly recommended.

Hi, This is Alpha Home Developers ltd. We have specialised team to take all types of building jobs. We are specialised in Bathroom fitting, Plumbing , electric , new builds & renovations

Latest homeowner review

Reviewed by Katy on 10/6/2025

Inder did a very good job of upgrading our upstairs bathroom and installing a toilet downstairs. He worked tirelessly and was very punctual. Great on communication too!

London Underpinning

Cellar & Basement Conversion in Alton

We specialise in structural works, underpinning, steelwork and basements. Our experienced team are also experts in damp control, waterproofing and tanking solutions and all our work is guaranteed, offering our clients complete peace of mind.

Latest homeowner review

Reviewed by Lisa on 9/3/2023

We had a retaining wall fixed in our basement. Kevin was great at communicating and helpful with the issues we had. The team working were great, polite, and kept the place clean and tidy each day. Very reliable. Thanks!

Gareth Lewis Developments Ltd is as well established company boasting an outstanding amount of knowledge and experience in the Construction Industry. We have a highly trained dedicated team covering all aspects of domestic and commercial projects.

Latest homeowner review

Reviewed by David on 10/6/2011

Very helpful and good advice. Good quality workmanship.

D&N Flooring

Cellar & Basement Conversion in Alton

JD Construction Property provide following services: Whole House refurbishments Garage Conversions Bathroom Refurbishment Flooring &tiles installation, kitchen fitting Painting & Decoration Plastering we have 12 years of experience, 100 jobs /year! ! we have 10 crews and will provide for you quality job!!!

Latest homeowner review

Reviewed by IAN on 19/4/2021

The company were efficient and quick. The workmen were excellent and did an outstanding job. Thank you.

Daniel Holubowicz

Cellar & Basement Conversion in Alton

Latest homeowner review

Reviewed by Andre on 22/9/2015

DO NOT EMPLOY THIS BUILDER!! He has laid my wood flooring onto carpet without my knowledge and now the floor is ruined. He took on the job even though he wasn't qualified or capable of given that he told me he was,and has then stated that I told him to lay down the wood flooring onto carpet. I can CATEGORICALLY deny that. He now will not answer my calls to discuss this. UNPROFESSIONAL, RUDE AND A LIE.

A Creative Touch

Cellar & Basement Conversion in Alton

At A Creative Touch we take pride in the work we produce, we only carry out first class work and we always leave our jobs cleaner than before we started. All our work is priced at competitive rates and covered for six months.

Latest homeowner review

Reviewed by Ksenia on 9/8/2016

Gregory has fixed wall-length book shelves for us. Very happy with the end result. Thank you

Epic UK Construction

Cellar & Basement Conversion in Alton

A 5 people company based on hard work and dedication with large experience in construction

Latest homeowner review

Reviewed by Christine on 18/3/2017

Arrived approx 1 hour after phoning. Team of 3 worked hard. Work was a good quality and they stayed late to finish the job. Cleaned well after finishing.

Cooper & Sons

Cellar & Basement Conversion in Alton

(174) Read reviews

EST 1983 Family run business 4th generation https://www.cooperandsonroofing.co.uk Here at Cooper & Sons roofing we like to give our customers full confidence in are services, all of are work comes with warranty from 1year to 25years. we take pride in all of are work, each person in are team has gone through the correct training to receive the highest qualification on each task needed. Please look at some of our 5* reviews from are happy customers.

Latest homeowner review

Reviewed by G on 31/5/2025

Jack did a great job in extra short time. He was very thorough and polite. If you want your job done quickly and efficiently you know where to go.

jimmy & sons carpentry

Cellar & Basement Conversion in Alton

Good experienced carpenter offering a friendly, reliable and trustworthy service. Currently working for myself and for LM Maintenance doing all aspects of carpentry. .Check portfolio of works on the LM Maintenance business page. Southampton.

Latest homeowner review

Reviewed by Ryan on 23/11/2016

Brickwork delivered to high standard. Very reliable.

Masterteck repair

Cellar & Basement Conversion in Alton

Masterteck Repair is a hard surface repair and French Polishing specialist.

Latest homeowner review

Reviewed by Paul on 9/11/2016

Job was to sand the floor of our flat and we set a price. After asking for more they guaranteed to finish for the extra price. A day later they pulled out of the job leaving it un finished. They said it was due to a black tar like substance. they said they had tried everything. My painter and decorator took a torch and scrapper and had it up in minutes. They had the wrong tools and seemed like first flooring job. After contacting asking to finish he said he would get back to me but failed to be reached.

2M Construction

Cellar & Basement Conversion in Alton

2M Construction is a London based family business and we pride ourselves on our diverse portfolio, including different kind of projects in the residential sector. 2mconstruction co uk

Latest homeowner review

Reviewed by Nina on 23/11/2022

Did a great job, very efficient and completed installing a shower unit, light and door in one day. Highly recommend.

ABS Home Improvements

Cellar & Basement Conversion in Alton

Hi there , ABS Home Improvements here . I have a background in electrical and plumbing . I have undertaken a wide range of work from decorating , bathroom & kitchen refurbs, house re-wires to gardening and odd jobs around the home. I take pride in my work no matter how big or small the job is at the best rate I can , no job is too small so please get in touch for a free quotation

Latest homeowner review

Reviewed by Colin on 4/11/2022

On time each day attended. Excellent work, price as quoted and very reasonable.

EasternEuropeanWorkforce

Cellar & Basement Conversion in Alton

Hello! We are a team of tradesmen who work hard to make building ideas a reality. With all our commitment and skills, our work is up to a high standard. Full refurbishment, extensions, lofts. Feel free to ask for a quote. Anytime you are welcome.

Latest homeowner review

Reviewed by Yinka on 14/2/2025

Very conscientious, I’m Well impressed with how Professional and reliable Oleg was and this is 6 months after he finished the job.

Mckenna Bell Group

Cellar & Basement Conversion in Alton

Latest homeowner review

Reviewed by bianca on 19/7/2013

George Bell came to work on some damp related issues in my flat in feb. since having completed the works the problems which first occurred have turned worse and George has been unwilling to get back in contact with me, despite chasing him for 5 months which only reaffirms that the job was poorly undertaken. The company main reception also seems to be a virtual reception so you can never speak with anyone helpful

ConstructFM LTD

Cellar & Basement Conversion in Alton

We are a Portsmouth based construction and facilities management company with over 25 years of building experience and knowledge. Covering every aspect of the building industry , from bricklaying to electrical, our team have all the relevant certificates and we are fully insured to carry out any work required. From small maintenance works to large projects. We offer free no obligation quotations. Please feel free to get in touch.

Latest homeowner review

Reviewed by Kevin on 24/10/2023

Latest homeowner review

Reviewed by Martin on 26/4/2019

Very hardworking and friendly people! Pleased with the outcome!

Building Refurb Ltd

Cellar & Basement Conversion in Alton

Latest homeowner review

Reviewed by Jocelyn on 12/7/2013

Came back with an accurate quick quote.

Latest homeowner review

Reviewed by Christopher on 5/8/2012

Generally good

TTF CONTRACTORS

Cellar & Basement Conversion in Alton

TTF contractors is a family-owned and operated business. Built on a foundation of honesty, quality craftsmanship and a sincere effort to achieve 100% customer satisfaction.TTF contractors works all over the Haslemere and surry area

Latest homeowner review

Reviewed by Celia on 1/7/2017

The decking is sagging and moves every time you walk on it which we have to do to get out of the garden. The step also rocks when walked upon. The wood was left cracked in areas and there are some miss cuts. The concrete was undertaken during torrential rain and has resulted in constant dusting being trailed onto the decking and subsequently into the house. The concrete ran down the length of the driveway and cannot be removed. Phoned to complain 3 weeks ago and heard nothing further.

Here at dwj and son construction and landscaping we offer top quality work and reasonable rates. We Family run business with 20 years experience.

Latest homeowner review

Reviewed by Pryank on 20/5/2025

Never came back with any quote or further details to do job!

J&H Plastering

Cellar & Basement Conversion in Alton

J Hill Plastering drylining rendering All aspects of plastering interior and exterior

Latest homeowner review

Reviewed by Shelagh on 2/12/2024

Friendly informative quick to respond and quote received following day.

RA Building Services

Cellar & Basement Conversion in Alton

Friendly and reliable service fully insured

Latest homeowner review

Reviewed by Kate on 28/2/2023

Did a poor job. Begged to be paid and promised to return to fix issues. He never did and ignores messages. Felt not sealed properly, bubbled out and on the front where visible. Knocked 2 bricks completely loose and just left them like that. Didn't mention them. Regret taking a punt on him. Silly of me to pay the full amount. You live and learn.

D & K PROPERTY MAINTENANCE We’re a family run business est in 2012. We specialise in roofing, guttering and property maintenance. All work is guaranteed. Services. * Roofing *Guttering *Chimney repairs *Dry ridge *Dry verge *Flat roofs *Lead work *Pointing *Moss removal *Painting internal / external *Asbestos *Jet washing *Rubbish removal

Latest homeowner review

Reviewed by Andy on 30/4/2025

Dean provided a very competitive quote which I accepted. He arrived on time, did an exceptional job, fully sanded the cladding, applied three coats of fencelife + as specified, then went the extra mile by cleaning the plastic fascia. Looks as new again . Highly recommended. Thanks Dean & Scott.

L N BUILDING

Cellar & Basement Conversion in Alton

Latest homeowner review

Reviewed by Nick on 8/7/2011

Lee made contact within 2 hours of posting the job, came out and quoted that afternoon and started only a week later. After explaining the quality of the job I wanted he and Sam got stuck in and made quick work of it. They were very careful about covering everything up and cleaning up afterwards. I was left with some lovely flat ceilings and wouldn't hesitate to recommend him. His quote was good value and resulted in me getting the whole property done. Well done!

majestic dream

Cellar & Basement Conversion in Alton

Majestic dream maintenance is based in Stockport. We are a engineering company specialist in all maintenance and installation building work working closely with property management companies, Landlords and households.

Latest homeowner review

Reviewed by Shahd on 9/12/2019

Excellent service and courteous throughout job. Left house clean.

Burgess Improvements

Cellar & Basement Conversion in Alton

Latest homeowner review

Reviewed by Suzanne on 4/7/2011

Dave did a teriffic job clearing up my very overgrown garden and accomplished in just a few hours a job I had been ignoring for months. He was very prompt to reply to my posting and appeared in the garden just a couple of days later. He did such a good job he's coming back to build us a bike shed and sort out the flowerbeds. Great job, thank you Dave!

Avbase Building Services is an award-winning family business with over 20 years' experience in the building trade. We operate in and around Surrey, Sussex, London, and areas within the M25 circular. We cover all aspects of building to include complete house renovations, kitchen and bathroom fitting, open-plan living areas, garage conversions and extensions from start to finish, including wall knock-through, steel work, brick work, electrical work, tiling, plumbing, plastering, carpentry, and decorating. With a team of highly skilled builders and building trade specialists, our expert knowledge and project management skills, we ensure that all our clients receive an excellent level of service during their journey to the perfect home of their dreams.

Latest homeowner review

Reviewed by Debbie on 10/7/2015

Great finish and meticulous attention to detail. Very happy with Nick and the overall job.

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Recently completed jobs

Here's what's been happening in and around your area

Foundations work

We have a problem with the foundations of the patios adjacent to the house and need someone to repair them.

Reconfiguration / Renovation...

Reconfiguration / Renovation Services required: demolition and/or wall removal Work relates to the following room(s): dining room Non load-bearing...

Reconfiguration / Renovation...

Reconfiguration / Renovation Services required: demolition and/or wall removal, plastering / plasterboarding 2 part job: 1 - construct 3x3m office...

create simple doorway in...

create a simple arch or doorway between 2 bedrooms through non structural partition wall. (no bricks etc)

Size of extension: 1 room...

Size of extension: 1 room Height of extension: 1 floor Room(s) to be in the extension: bedroom(s) Build a single 8 foot wall to enclose a 8 x 8...

Size of extension: 4 rooms...

Size of extension: 4 rooms Height of extension: 2 floors Room(s) to be in the extension: bedroom(s), lounge/living room, utility room 2 storey...

Reconfiguration / Renovation...

Reconfiguration / Renovation Services required: demolition and/or wall removal Work relates to the following room(s): dining room Non load-bearing...

Size of extension: 1 room...

Size of extension: 1 room Height of extension: 1 floor Room(s) to be in the extension: kitchen looking for advice and a quote on an extension and...

To lay a new patio on a grass...

To lay a new patio on a grass area in our back garden. It will need to be cleared of grass and soil so that foundations can be laid and then the patio...

Reconfiguration / Renovation...

Reconfiguration / Renovation Services required: bathroom installation, electrical, kitchen installation, plumbing, tiling - walls, Removal of...

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  5. Job done

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