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Local house extension experts in Cardiff, South Glamorgan

There are 393 House Extension specialists in Cardiff, and last month we helped homeowners get quotes for their home improvement jobs.

Browse House Extension specialists in Cardiff, South Glamorgan

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started buisness in 2008 after 24 years employed on site for 3 construction companies we specialise in extensions new builds loft conversions garage conversions refurbs and renovations timber frames all building trades in house from groundworks to finished product ,city and guilds qualified citb registered your one stop company

Latest homeowner review

Reviewed by richard on 12/6/2016

Exceptional service - clean and quality job at a very competitive price. I totally recommend these guys.

Pm building & landscapers ,with 35 years building experience we cover all aspects of building works to be carried out ,extensions ,conversions ,garages ,porches brickwork .stonework ,retainers and much more ,ins work carried out .

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Reviewed by Polly on 30/4/2025

Design and installation of quality upvc windows doors and conservatories . We we also offer a bespoke steel base and wall system for conservatories cutting down on cost and installation times . All our products are covered by a 10 year guarantee .

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Reviewed by Jack on 28/1/2023

Great price, completely transparent tradesperson, professional, clean, and courteous. Amazing quality bifold doors fitted to an excellent standard. I recommend Rich and will be using him again.

Are there any jobs or large projects in your home or business that require carrying out by a company with over 15 years experience in the field? We setup J & Z Property Maintenance to take care of both major and minor works... J & Z property maintenance ? From your kitchen to your bathroom and outdoor areas, we can complete any type of activity: Painting and Decorating House Renovations Building Works Bathroom Renovations/Kitchen Renovations Roof Repairs Tile Installation Plastering and Ceiling Repairs New Door Locks Plumbing Joinery and Carpentry Light Installations Kitchen Worktop Installation Flat Pack Assembly Decking and Patios Fencing There no job to small.

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Reviewed by Connor on 12/5/2024

Jamie came over this Saturday and Sunday to add some fencing on my stone wall and added some wooden rails to the steps of my decking. He did an amazing job and the quality is brilliant. Will definitely use him again for future work in the garden.

Arundel carpentry & Construction is a family run business with the customer in mind for every project. With over 20 years of working in the trade, there isn’t anything we can’t accomplish. We pride ourselves on organisation, communication and above all, high standard work. Building on our reputation, one project at a time

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Reviewed by Stuart on 7/8/2024

Excellent job done , highly recommend

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.

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Reviewed by John on 14/5/2023

Hello there! My name is Alan and I have been in the building trade for nearly 20 years. I completed collage in bricklaying and construction and worked on many projects over the years. I have a small team of builders and many contacts to get your job completed to an excellent standard at reasonable prices. We have an excellent reputation the South Wales area. We specialize in extensions but have many skills in groundwork’s and landscaping Please feel free to contact me for a free no obligation quote.

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Reviewed by Petra on 18/2/2025

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Reviewed by archie on 10/8/2008

arrived on time, carried out work with minimum mess, did a satisfactory job at price quoted.

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Reviewed by Martin on 13/6/2015

Extremely happy with the attitude, quality of work, price, and cleanliness during my small project. I would give these guys a chance to impress you. At first I was hesitant due to the young age. But decided to give the boys a chance and I wasn't disappointed. I will be using JP landscaping again in the future and I recommend you do to.

I’m ready to tackle anything from the most complex and large scale construction projects to the smallest of repair jobs. I’m fueled by my commitment to excellence and go the extra mile to make sure my clients are completely satisfied with my work.

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Reviewed by Tom on 1/11/2018

fairly quoted. turned up on time, completed job in timely fashion and to a great standard. highly recommended. will use again.

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Reviewed by Ian on 10/5/2011

Very polite and pleasant to deal with. Quality of work was good. Left no mess and even brushed outside. Turned up dead on the agreed time for arrival. Would highly recommend.

Small building firm with over 30 years experience building & renovating. Large portfolio ranging from complete home renovation to complete pool design & instalation.full public liability.we do not accept 30days for payments,payment is on completion.

Latest homeowner review

Reviewed by Allan on 27/11/2017

Paul was very prompt with providing a fixed priced quotation which was within budget. He was available to start immediately and arrived the next day at time agreed. He put in a full days work everyday, and would work on to finish what he had programmed if necessary. He was very tidy and had all the tools and dust sheets required. He also cleared up fully at the end of each working day Would recommend this person to everyone

Latest homeowner review

Reviewed by Gerald on 28/5/2011

It was a pleasure to work with this company and I have no hesitation in recommending Billy Legg. He was fast and reliable with a very fair rate for the job. The quality of his work was the best.

APMS Building and Roofing. We cover all aspects of the industry from repairs to new builds, renovations, roofing, plumbing and electrical works, Fully insured, friendly and professional. 30 years in the industry .

Latest homeowner review

Reviewed by Thomas on 26/6/2012

I apologise to A.P.M.S for previous rating and comments. TH

Weagan Building Contractors have a combined construction knowledge of 40 years experience in the construction industry. We managed projects from start to finish with all are clients. Full house builds, full house deisgn and build, single & double story extensions, full house renovations and barn conversions. Simply put we are big enough to handle any project at the same time as being small enough to care about each individual client & their project. Weagan Building Contractors have a specialist groundworks and drainage department. We cover domestic and commercial drainage installation and repairs. This along with a highly skilled team of employees & a passion for doing things correctly makes us the perfect answer for all construction projects.

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Reviewed by Paul on 18/10/2021

Morgan and Mike contacted me on the day of posting my job, visited that same afternoon and sent me an itemised quote that evening. They understood that the job was urgent and turned up on the appointed day, at the appointed time. Both my wife and I found they were happy to explain their work and to give us options. The work was neat, efficient and just what we needed. We will definitely use them again and would be happy to recommend them. Very pleased.

I am a good an local reliable builder that does most trades, as cheap as i possably can. My main trade is pattern imprinted concrete

Latest homeowner review

Reviewed by Robert on 25/7/2019

I have just had my drive done, what can I say, first class work, professional, reliable, harding working, honest, Dale worked with us every step of the way, when he said he would be there he was, happy to help. When we we're unsure of what we wanted, he would suggest but not in a way that he took over, alway giving control to us, I would highly recommend him and his team to anyone, first class company, first class service, first class work

Hi my names Simon I'm a fully qualified carpenter/ window fitter/ handyman. I've been qualified for over 15 years and I take pride in my work. For a free no obligation quote give me a call.

Latest homeowner review

Reviewed by Dave on 25/2/2020

Relied quickly, and completed job within one day. Very happy with workmanship

LCM is a successfully run family building and property business with more than 20 years experience, we work on commercial and private homes. Our aim is to provide a top class service that stands out in quality and attention to detail.j

Latest homeowner review

Reviewed by Nigel on 13/11/2024

Professional and friendly. Very accommodating, good workmanship completed in a timely manner. Would highly recommend and happily use again for future work.

Cross group is a construction company that has brought many years of building experience together to deliver all aspects of building works across both the residential and commercial sectors throughout South Wales and the west. Our family based company has been proudly built from years of experience in all aspects of building works passed down over three generations and proud members of the federation of master builders. Every member of our team are highly skilled and have worked along side each other for many years , helping us to combine all of our individual talents to create a first class, professional and personal service for all of our clients. Our website is crossgroupbuilding.com Facebook @crossgroupbuilding Instagram @crossgroupbuildingworks

Latest homeowner review

Reviewed by Jon on 3/11/2020

Very competitive detailed initial quote that was stuck to. Worked above and beyond their requirements. Saved me a lot of money by handling unforeseen problems without a fuss. Honest and highly recommendable - will be using them on everything in the future.

Floem

House Extension in Cardiff

Floem Renovation LTD is the group of professional, qualified trade workers, with many years of experience on most of the fields around properties development, improvements and renovations. Focused on the best customers experience. We can managed whole project from start to finish including all materials and parts supplied. We are specialised with Bathrooms and Kitchens renovations, structural works, extensions and loft conversions. Free quotes. Fully insured

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Reviewed by Alice on 3/12/2024

Really happy with my bathroom renovation! It looks fab, was done quickly, the price was great and Tom did great work

Building and maintenance company specialising in carpentry and plastering.

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Reviewed by Alex on 3/11/2023

Had Adam down for a chimney breast removal and they’re talented, friendly guys with fair prices. Can’t ask for much more. The plastering was very smooth!

We have been in the building industry for over 43 years. We have a full range of working experience, and customers will testify to our good service. The quality of our work is second to none, and our customers are always right.

Latest homeowner review

Reviewed by Joanne on 20/9/2024

Did a great job removing ceramic floor tiles. Left the hallway clean, good communication and reasonable price. I would recommend and use again.

Supply and fit. Window repair and replacement. Pvc windows. Pvc doors. Secondary glazing. Sealed units. Glass splashback. Glass balustrade. Juliet balcony. Bespoke mirrors. Glass table tops. Shop fronts. Glass shower screen. 8am until 8pm call out board up service. Carpentry and home improvements. All aspects of carpentry and home improvements undertaken. Also find us on Facebook and Instagram Check us out on google: gullivers glazing

Latest homeowner review

Reviewed by Joanna on 24/8/2022

Gullivers are highly recommended. Had a call to quote and they responded extremely quickly and offered to take on the job the next day. They arrived on time and didn't waste any time getting on with the job. Very friendly and helpful - any future work we have, we will get in touch with Gullivers. Highly Recommended! Thank you both

Handy Man Hardy understand the importance of gaining your trust and is prepared to work hard to gain it. Will complete any job no matter how small. To complete any work within an agreed time and to high standards. Working to a budget. Products and service : • Property maintenance. • Painting and decorating • Gardening • Decking, fencing, Patios • Brick & Block Laying.. • Odds jobs Contact Simon Hardy

Latest homeowner review

Reviewed by Dafydd on 14/1/2025

Very pleased with the quality of Simon’s service and work in rebuilding our front wall. Thank you! Great communication, turned up on time, courteous and trustworthy. Genuine nice guy. Will definitely use Simon again for any jobs he can help us with.

Latest homeowner review

Reviewed by Kyle on 29/8/2013

Excellent quality and finished to high standard throughout! Phillip was really reliable and completed the job by the time he said. I would recommend Phillip to anyone and would definitely use again.

Latest homeowner review

Reviewed by Sarah on 15/11/2012

Nick of NS Carpentry was Fiirst Class On Tme,On Budget and did a Fine Job

Latest homeowner review

Reviewed by Natasha on 19/2/2013

Very good quality service and great value for money. Jasim was very reliable. Would definately use him again.

Lewis Damp Proofing offer a professional & reliable service within the remedial industry in Cardiff & South Wales. Our services include diagnosis & treatment of rising damp,penetrating damp,wet & dry rot,condensation control & woodworm control.

Latest homeowner review

Reviewed by Richard on 9/5/2013

We were really impressed with the reliable work done by Gavin and Dave. They were professional, trustworthy and courteous. We would thoroughly recommend Lewis Damp Proofing to anyone who needs excellent work doing!

We are a family run company offering all aspects of work from home improvements or property maintenance. From fitting a new kitchen or installing a new bathroom, to laying carpets and flooring. We promote an honest and fair attitude within our business.

Latest homeowner review

Reviewed by Diane on 18/4/2016

Have tried several times to contact your website to tell you that he did not have the opportunity to quote as I had made other arrangements. In your original e-mail the link did not work.

Ease-services can help for all your homes needs! We pride ourselves on a high quality service. With 20 years experience we appreciate that having work done in your home should not be a hindrance and something that happens with minimal invasion.

Latest homeowner review

Reviewed by Carol on 17/7/2013

A comprehensive job was required and Ease Services delivered! From plumbing to electrical work, tiling and fitting my new kitchen. I ordered the kitchen on line & needed help to make sure I got it right. I wasn't afraid to ask questions on anything I wasn't sure about and everything was explained to me. We worked out any problems that came up with input & discussions from both sides and agreed the way forward together which was refreshing. Thank you for a job well done.

Latest homeowner review

Reviewed by Jon on 5/11/2013

Very pleased with TPS, quick, clean, on time with great quality and a fair price. Will definitely use them again.

i am a small builder with lots of experience. Been doing it for about 20 yrs. Lots of photos and happy customer. hope you will become another happy customer. good rates and reliable friendly service.

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Reviewed by Cheryl on 9/7/2014

Have booked again.

Mn building is a company who can carry out any internal work from kitchens, bathrooms and complete renovations

Latest homeowner review

Reviewed by Angela on 19/3/2025

Very happy with works completed. A range of works involving bathroom for out, refurbishment of existing bathrooms and several wider jobs. Would certainly recommend using this contractor.

Latest homeowner review

Reviewed by craig on 30/10/2016

They performed such a great job of the detached garage project we then without hesitation had them build an extension to our house (on going project). We cannot speak highly enough of their workmanship and work ethic to date. Here, they typically start before 07:30 and when needed on weekends always putting in a full days work. Both Ade and Chris and very polite, friendly and approachable. We are happy to forward pictures if that would help with your decision making process. We would highly recommend.

Family run business. Have been a bricklayer for 30 years and now my son has followed in my foot steps. I have always been proud of my work especially conservation. I have recently joined rated people because I have had enough of the site work and feel its time to slow down and offer my experience to private work. I have done private work in the past and always ensured works were completed on time,at a reasonable rate and took pride in my work. I am a registered company and can be found on company house. I can supply my registration number for any checks.

Latest homeowner review

Reviewed by Michael on 22/4/2025

Polite, friendly and efficient from the start. It was just a small job to be done but the job was very well done and no rubbish to clear afterwards. We have no hesitation in recommending GR Jones Brickwork Ltd.

Hi there, I’m Haydn from Phase Contractors, a family-run business based in South Wales. At Phase, we specialize in renovation and electrical services for private and commercial properties. From EV charger installations ,routine testing and inspections to remedial work and emergency call-outs, we ensure your space is safe, functional, and up to standard. We are specialized in complete home renovations with a professional, tailored approach. We handle demolition, electrical and plumbing, masonry, flooring, drywall, painting, and full kitchen and bathroom remodels. Our turnkey solutions focus on quality, punctuality, and detail. With over 120 five-star reviews, our customers trust us for our expertise, reliability, and friendly service. Whether it’s a quick repair or a full-scale renovation, we’re here to get the job done right. Get in touch today to discuss your project—we’d love to help! Kind regards, Haydn

Latest homeowner review

Reviewed by Emma on 13/10/2021

Phase Electrical DCI did an excellent job installing an Zappi charger. The install was done very neatly and quickly. I can't fault communication either; emails were promptly answered. All in all the best experience I've had not rated people.

We offer everything to our clients from small works to project management and undertaking large projects across the south Wales area. Our team have a wealth of training and experience under their belts that's clearly portrayed in every job we do.

Latest homeowner review

Reviewed by Gareth on 29/9/2016

After setting Jac Jones Cons. what at first seemed like a simple straightforward job they continued to do everything they possibly could to complete what turned out to be possibly the hardest job they had ever taken on. Not only did they show up every day on time but they turned up with a smile on their faces and worked hard constantly. Their work rate and quality of workmanship is second to none and won't stop until not only you but they are happy with the final product. Would recommend without question!

Latest homeowner review

Reviewed by Keith on 22/6/2017

Nice guy worked well trust worthy and reliable. Took pride in his work and would defiantly use again .

We are a family run business with over 30 years experience in building and damp proof and remedial works.

Latest homeowner review

Reviewed by Tamsin on 10/1/2017

Mark was friendly and approachable and did a good job, and tidied up after himself. He was able to start the job quickly, so that was very convenient for us.

Small local 27 year's experience full liability insurance .reliable service

Latest homeowner review

Reviewed by Lianne on 20/12/2014

Tony was on time, friendly, and got the job done quickly. I was really pleased he was able to come out on the weekend too. Would definitely use him again.

At CPS we offer a wide range of carpentry, joinery and building services to suit all your needs with no hassle just a great reliable service.

Latest homeowner review

Reviewed by Craig on 22/11/2016

Lee came and gave us a price for a new standard staircase. He also offered a variety of options for other types. He was approachable, friendly and explained everything to us. Since having them fitted he has fitted our kitchen, hung oak doors and frames throughout, fitted skirting throughout, new pvc windows and a set of patio doors. His prices are reasonable and affordable. He also likes a biscuit or two and is partial to a cuppa

Povey construction deliver a complete construction and support solution for all building types and their surroundings large or small commercial or residential we have the experience and deliver quality workmanship our name is very important to us !!

Latest homeowner review

Reviewed by Andy on 16/9/2015

Les and his team recently completed a loft conversion and en suite for my family home. He supplied a quotation which was reasonable and based on our specifications. A reliable & friendly team. Les designed the en suite which exceeded our expectations! It's definitely the wow room. The overall job was within time, on budget and looks amazing now finished. Top marks!

I am a qualified and experienced Ground Worker I have worked throughout the South West on large and small scale projects, I am currently working in the Bristol area. I specialise in driveways, patios, footings, concreting floors, retaining walls, digging for services, landscaping. I am qualified to drive 360 excavators and forward tipping dumpers. CPCS Forward tipping dumper CPCS Ride on roller CPCS 360 Excavator 10 Tonne and above Skilled worker blue card SSSTS ( Supervisors course )

Latest homeowner review

Reviewed by Judith on 27/5/2019

Wow. These guys have worked so hard to get our job finished on time. They have built a retaining wall in our garden with deep foundations, drainage and rendered to a lovely finish. They have cleared the site and completed the job to an excellent standard. They have been polite and helpful, going the extra mile and taking the initiative to solve problems as they arose. I would recommend them without hesitation. Thanks both for an excellent job done.

My names Robert and I have been in the building and roofing and property maintenance business for over 20 years.

Latest homeowner review

Reviewed by Graeme on 15/12/2016

Job was carried out quickly and efficiently at a sensible price. I would definitely recommend Robert.

Latest homeowner review

Reviewed by angela on 14/11/2008

Friendly,reliable and hardworking builders. They rendered the back wall of my terraced house, and did the work efficiently, cleaning up afterwards. Excellent.

Latest homeowner review

Reviewed by Rob on 29/12/2009

Delivered everything asked for and genuinely helpful. It turned out I didn't need as much work as anticipated which he willingly mentioned and provided a discount. Would recommend.

Latest homeowner review

Reviewed by Gemma on 13/12/2012

We found Mitch excellent to deal with, and we're very happy with the work to our roof and gutters. Would recommend warmly.

We are a Local, fairly priced contractor with over a decade combined experience. We can service and source extensive amounts of building works internal and external. To get a free no obligation quote please get in touch!

Latest homeowner review

Reviewed by Jason on 28/12/2023

Great guys, excellent work. Thank you both so much.

Latest homeowner review

Reviewed by Leighton on 10/7/2012

Very happy with the work carried out

Latest homeowner review

Reviewed by Stuart on 18/3/2020

Karl did a fantastic job on my stone drive and completed it with very short notice. will hire again

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Recently completed jobs

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

Size of extension: 1 room...

Size of extension: 1 room Height of extension: 1 floor Room(s) to be in the extension: kitchen Extend existing kitchen Planning permission has...

Size of extension: 1 room...

Size of extension: 1 room Room(s) to be in the extension: kitchen, lounge/living room Ground floor extension which possibly might lead to 1st floor...

Extension single storey...

Extension single storey connection between kitchen and garage and roof tiled also porchway with moving front door.

Kitchen/dining knock-through &...

We currently have a small kitchen leading onto a small utility room which extends into the garden, and separate larger dining room next to the...

Size of extension: 2 rooms...

Size of extension: 2 rooms Height of extension: 1 floor Room(s) to be in the extension: bathroom, kitchen I am looking to buy depended on the cost...

Re-build lean-to and install...

Lean to needs knocking down and rebuilding. To include slate roof, velux window, utility room, downstairs toilet

We would like to have the load...

We would like to have the load bearing wall knocked down between our kitchen and dining room with the insertion of an rsj.

Size of extension: 1 room...

Size of extension: 1 room Height of extension: 1 floor Room(s) to be in the extension: lounge/living room Approximately 14 sq. metre, single...

To build a two storey...

To build a two storey extension only, we do not need a quote for the internal partitions, kitchen and bathrooms or indeed the wiring or plumbing. ...

Size of extension: 4 rooms...

Size of extension: 4 rooms Height of extension: 2 floors Room(s) to be in the extension: bedroom(s), conservatory Hi I am looking for a builder...

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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