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Find Local Basement Conversion Company Near Me in Holyhead, Gwynedd

There are 26 Cellar & Basement Conversion specialists in Holyhead, and last month we helped homeowners get quotes for their home improvement jobs.

Browse Cellar & Basement Conversion specialists in Holyhead, Gwynedd

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started business as parternership in 2007, we grown our portfolio from 2 houses to 86 units today, we also helped over 100 homeowners and 25 landlords including housing association, we help from a full consultancy package to build yur dreams to even help with leasing to our corporate contacts if you wish to invest. featured on HOMES UNDER THE HAMMER, we pride our selves in job well done, we always make sure we start projects within 2 to 3 weeks from time we agree and we always deliver our projects on time; we make the impossible a luxury and affordable possible while we take all the stress away; BGH combines technical expertise with exceptional customer service, ensuring every client benefits from cutting-edge technologies tailored to their home needs. with industry leading certifications and proven track record, BGH is a top choice for those seeking efficient, reliable and successful renovations We ate fully accredited Offer full guarantees and insurances including insurance backed guarantee and deposit guarantee We are specialist in new build, extensions, heavy refurbs, hmo and luxury conversions

Latest homeowner review

Reviewed by marvelous on 25/9/2025

AA property and groundwork All aspects building work landscaping Building Roofing Pointing Flagging Sand blasting Small demolition Extensions Ponds Driveway specialist Resin driveways Handy man Garden clearances Jet washing Block paving Flagging Groundwork’s All work under taken

Latest homeowner review

Reviewed by Des on 7/10/2025

Welcome to Property Renovation and Decorating Services: " PROFESSIONAL SERVICE " We are professionals builders with over 17 years experience on all building works: extension loft conversion refurbishment bathrooms kitchens painting and decorating plastering, wood flooring, carpet fitting, tiling. building works undertaken: General Building, New Builds, full Interior & Exterior, renovations and much more. Emy has been providing professional home renovation services for over 17 years. He is praised by the customers for his attention to detail, responsiveness, timeliness and quality work. Call (text) for a free consultation and estimate:

Latest homeowner review

Reviewed by David on 19/11/2025

Chameleon Refurbs have over 25 years experience in all types of Building Refurbishments so choose Chameleon Refurbs with confidence

Latest homeowner review

Reviewed by Isaac on 29/11/2025

J R Griffiths roofing we specialise at 're roofing, slate tiles and leadwork. also chimney work undertook. Rubber roof and also grp

Latest homeowner review

Reviewed by John on 7/8/2022

Reasonably priced, job completed the next day couldn't ask for anything more.

ASPRAY LIMITED

Cellar & Basement Conversion in Holyhead

Our award-winning claims management service aims to help policyholders throughout the UK make successful buildings insurance claims caused by storms, burst pipes, accidental damage, fire, floods or other events which lead to the property owners needing to make an insurance claim. We project manage and carry out the required repairs using our fully vetted contractors. Aspray always strive to reinstate the property to its pre-incident condition as swiftly as possible. Aspray Ltd are authorised and regulated by the Financial Conduct Authority for claims handling only.

Latest homeowner review

Reviewed by John on 14/5/2023

G Edwards Construction

Cellar & Basement Conversion in Holyhead

Hello, I'm Gareth from Bangor, Gwynedd North Wales. I cover all areas including Wales and England. I have been working within the construction industry for over 10 years! I'm a hard working individual, with a strong hardworking team behind me organised by myself. All of my employees take pride in their work and are able to complete set tasks. I cover a variety of areas, This includes -Roofing -Groundworks -Earth works -General Building -Landscaping

Latest homeowner review

Reviewed by David on 28/12/2021

Excellent job polite efficient and would definitely recommend thanks for a great job

PEP CONSTRUCTION LTD

Cellar & Basement Conversion in Holyhead

At P.E.P Construction ltd, we offer a wide verity of service in the construction sector, from anything as small as you can think to as big as you want and as high end From groundwork’s to Extention all the way to new builds look no further, we have a team of trades all under one roof l, with a professional and friendly service start to finish look no further

Latest homeowner review

Reviewed by damian on 5/12/2024

Hi we are D.S.F Plastering, Rendering & Home improvements 25years ex . We take great pride in our work , always leave a good clean job, reliable and finish on schedule .

Latest homeowner review

Reviewed by Peter on 9/11/2022

Excellent. First class and really nice guys. Very reliable came when they said weather permitting. I would definitely recommend. Thanks guys. ????????????

Evans home and landscapes

Cellar & Basement Conversion in Holyhead

We are a landscape and home improvement company and cover north, west wales and the Midlands. We specialise in all hard and soft landscaping. We aim to carry out professional work with nptc qualifications for any arb work and over 20 years home improvement experience in the team.

Latest homeowner review

Reviewed by James on 3/5/2022

Excellent service. Shaun was very communicative, and made sure the job was done well. Definitely recommend.

Friendly business that covers all building work over North Wales, we take pride in our work and all work are done to a top standard

Latest homeowner review

Reviewed by Margaret on 31/10/2025

Iwan was brilliant and is coming back next week to do further work. He was punctual, professional, cheerful and friendly. I would definitely recommend him.

LSB Plastering Services

Cellar & Basement Conversion in Holyhead

Welcome to LSB PLASTERING SERVICES we offer a wide range of plastering work and are happy to work with our customers to get the job completed to top standard.

Latest homeowner review

Reviewed by Madhu on 17/11/2025

GMS

Cellar & Basement Conversion in Holyhead

Gareth, the proprietor of GMS is a qualified wood machinist by trade and has over 25 years’ experience working within the construction industry. Gareth first started the business in 2005 with a view to provide clients across North Wales and Cheshire with kitchens. In the last 10 years the business has diversified and now accommodates a scheme of works within construction from kitchens to bathrooms, gardens to bedrooms, fire and flood damaged properties and more. Gareth employs several staff and subcontracts to NICEIC registered Electricians and GAS SAFE registered gas engineers. Therefore, GMS can offer project managing and the client only needs to converse with one trade [GMS] rather than multiple. Thus, taking the stress out of the job.

Latest homeowner review

Reviewed by Mark on 23/2/2018

Great communication and work carried out to a high standard.

N E Construction

Cellar & Basement Conversion in Holyhead

Here at N e construction we do a range of work from big to small , building to landscape work , general maintenance , painting an a general tidy up,

Latest homeowner review

Reviewed by Gwion on 11/11/2021

Great guys

BAE Construction LTD

Cellar & Basement Conversion in Holyhead

Bae Construction is a company dedicated to delivering building and construction services of the highest standard. We pride ourselves on the quality of work we can deliver for a variety of different projects large or small. Based in Anglesey we aim to provide building and construction services throughout Anglesey and north West Wales. We have over 25 years experience in the building industry having worked on projects of all sizes from conversions to refurbishments and new builds. Whatever the size of your building project our commitment is to Provide the highest standard of workWork in partnership with you to deliver your projectCommunicate effectivelyKeep to your budgetExceed your expectations

Latest homeowner review

Reviewed by Alun on 17/9/2016

I changed my mind not to go ahead with the extension

We cover all building and joinery work ,we do a good tidy job at a fair price

Latest homeowner review

Reviewed by Mandy on 12/11/2025

Great correspondence and quote

Celtic Heritage is an established company with over 30 years experience in the construction and double glazing industry. We benefit from a level of knowledge which enables us to give in depth, and valuable advice to our clients.

Latest homeowner review

Reviewed by Lee on 5/12/2017

Great company and a good team of Lads.

AK Kitchens and Joinery

Cellar & Basement Conversion in Holyhead

Latest homeowner review

Reviewed by Cheryl on 27/7/2024

They ruined my kitchen cut holes where there didn't have to be holes I'm disabled and stuck ìn bed They left me with no water or electricity an noway to cook for a week in this heat I've had to buy new cupboards an pay à plumber electrician an joiner as well to fix there mess if I could give them no star I would

JG Roofing

Cellar & Basement Conversion in Holyhead

Would you all kinds of roof repairs gutter repairs cleaning gutters alter alter building over cause fully guaranteed

Latest homeowner review

Reviewed by Baiba on 27/8/2024

Advanta Construction

Cellar & Basement Conversion in Holyhead

Over 25 years in the building trade. GNVQ in bricklaying TrustMark approved Member of the FMB (Federation of Master Builders)

Rated People

Cellar & Basement Conversion in Holyhead

Loft conversion specialist, with 25 years worth of experience.

Carter Tipton Construction

Cellar & Basement Conversion in Holyhead

Sabre Assessing LTD

Cellar & Basement Conversion in Holyhead

Curve Management Services Ltd offers a service designed specifically to its customers requirements. Our services include leak detection, leak repairs, damp investigations, building envelope surveys and property drying. Our experienced technicians undertake all work. Our comprehensive building knowledge and unmatched experience in our field of expertise allows us to complete any job from start to finish. Our team of skilled technicians undertake work under the guidance of our experienced project managers. We can undertake private and insurance work via our in-house insurance claim specialist.

Sean Navin Bricklaying & Construction Serving North Wales, Cheshire & North West England At Sean Navin Bricklaying & Construction, we take pride in delivering top-quality building work with reliability, honesty, and care. With over 10 years of experience and NVQ Level 2/3 qualifications, Sean and the team offer a full range of general building and bricklaying services for both residential and commercial projects.

Jordan Davies

Cellar & Basement Conversion in Holyhead

CALTOM CONSTRUCTION LTD

Cellar & Basement Conversion in Holyhead

Caltom Construction has 40 years experience in the construction industry.We specialise in reinforced concrete construction.Nationwide but usually in and around London. Thanks Colin Lavelle Caltom Construction limited

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Recently completed jobs

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

Size of extension: 2 rooms...

Size of extension: 2 rooms Height of extension: 1 floor Room(s) to be in the extension: bathroom, bedroom(s) 1 bedroom and bathroom I'm not sure...

Reconfiguration / Renovation...

Reconfiguration / Renovation Services required: plastering / plasterboarding, window replacement / installation None that I can think of I...

Hi, I'm looking for quotes...

Hi, I'm looking for quotes to remove a chimney from my property from top to bottom to make one of our bedrooms larger and also remove the chimney...

Size of extension: 1 room...

Size of extension: 1 room Height of extension: 1 floor Room(s) to be in the extension: bedroom(s) Extended bedroom with en-suite and extended...

Chapel conversion

L-shaped mezzanine covering no more than 40sqm of 65sqm total floor area. 8ft you staircase and width about 3metres . Floor slab maybe adequate for...

Damp course

Lounge is damp. Garden is built up against exterior wall and standing water is causing damp. Concrete to be dug out, tanking to outside wall and...

Size of extension: 4 rooms...

Size of extension: 4 rooms Height of extension: 2 floors Room(s) to be in the extension: bathroom, bedroom(s), dining room, kitchen Have rough...

Split one bedroom into two and...

We have a long 20' x 9' (approx)bedroom which we want to make into two smaller singles. Stud wall, board and skim in between required plus new opening...

Size of extension: 1 room...

Size of extension: 1 room Height of extension: 1 floor Room(s) to be in the extension: kitchen The extension is to knock through from the existing...

Rising damp ground floor....

Possible rising damp in stone walls. Living room and kitchen extension.

How our service works

  1. Create a job - it's free

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

  2. Get quotes

    Up to 3 tradespeople 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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