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Local house extension experts in Welwyn, Hertfordshire

There are 1227 House Extension specialists in Welwyn, and last month we helped homeowners get quotes for their home improvement jobs.

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willow brickwork I have been a qualified bricklayer for over 7 years with a level 3 NVQ. I also went to anglia Ruskin university and gained a foundation degree in construction management. I have worked on many different large and small sites with various different sub-contractor brick work companies. I still work for a large contractor company and and looking to take on other work on my weekends (work I quote on here I will only be able to complete on weekends) so I am looking to take on small brick work projects such as garden walls, brick sheds, brick barbecues etc. Work I can compete in a weekend. I pride myself on quality and neatness of work and to never leave a job until the customer is happy. Im always polite, tidy and try to keep any inconveniences to a minimum. I also use another website to gain work and have gained 100% positive feedback which I am very proud of and aim to keep it that way!

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Reviewed by Marco on 2/4/2019

Will update on completion

15 years of experience of General building works and house maintenance. Specialising in Roofing, Plastering, Brickwork and much much more..... Professional service throughout.

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Reviewed by Andy on 25/5/2019

Quick, efficient service. Very happy with work. Would recommend

With over 20 years of experience in construction we want to get your project from conception to completion. Fast, trustworthy and efficient.

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Reviewed by Jermaine on 25/8/2020

Absolutely amazing tradesmen with very competitive pricing. transformed my 50m2 Driveway by tilling and installing aco floor drainage, great attention to detail and great finished product. Very highly recommended and definitely will have them returning for more work.

Our purpose is to provide our customers high quality work at an affordable price!!

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Reviewed by Milan on 4/1/2020

Excellent work carried out to a high standard. Went above and beyond expectations and will definitely recommend and use for my next project. Thanks for completing the job in a professional and very timely manner. Much appreciated

We are ssmART Build & Design Ltd. Our team pride themselves on We are ssmART Build & Design Ltd. Our team pride themselves on their diligence and painstaking attention to detail. We are a seasoned team of quality builders who have been helping homeowners London area for some time. We have an experienced and disciplined team who have completed many projects throughout our area of operation; indeed we can help you complete all types of home improvements and extensions/conversions. We pride ourselves on our impeccably high standards and always strive to deliver on time and within budget. We can help with all of the following and more: • Extensions (both single and double storey) • Loft Conversions • Basement Conversions • Garage Conversions • Kitchens • Bathrooms and wet rooms • Exterior and Interior painting and plastering • Plumbing, electrical work and carpentry • Annexes • Replacing both wooden and PVC doors and windows We are always delighted to meet our prospective customers face to face to discuss their requirements. We look forward to hearing from you soon.

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Reviewed by Florin on 15/7/2019

I found Lorand to be very professional in his craft ,friendly individual and very reasonable priced. I would highly recommend his work in extensions,brickwork etc.

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Reviewed by Lynda on 23/8/2010

The job was done very quickly and efficiently and for a reasonable price. We are very pleased with the quality of the work.

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Reviewed by kudzai on 8/11/2011

very good service

S G BUILDING & Son is a family run business with over 30 years experience, covering building and general roofing. We offer a competitive, honest and reliable service, and are committed to developing a trust between the company and its customers. All our customers are offered a free quotations, all our work is guaranteed and a RAMS certificate (HEALTH AND SAFETY)is issued for each job.

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Reviewed by Daniel on 16/10/2023

Simon was very knowledgable with a wide range of skills, took the time to understand the issues faced and delivered a high quality solution. Great guy to deal with & quick communication when I had queries, would recommend to anyone.

upvc sash window specialists covering all aspects of double glazing, highly competitive and hassle free sales. Showroom open in Harlow Essex.

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Reviewed by Alice on 20/5/2019

Great team, professional and friendly, but more importantly did a great job!

We are professional building company based in London. We have worked in the building trade for many years. In this time we have amassed a wealth of skills and experience. We pride ourselves on being a professional, reliable and trustworthy team who cover all the bases when it comes to building work.

Latest homeowner review

Reviewed by Peter on 23/2/2020

Very happy we hired MC to do the job professional throughout the job and finished very quickly. I would highly recommend these guys if you're looking for a top level of work I will be using them again In the future.

Hello, my name is Sergiu, I’m a professional multi skilled refurbisher. I’m happy to complete quality jobs for all homeowners that are interested in my services. We are a small team that can complete a various range of jobs (ventilation, duct fitting, air conditioning, plumbing, carpentry, painting, decorating, tilling, professional cleaning). I believe that with the professional skills that we possess and the experience that we have, we’ll prove to be qualified to complete any challenge and to make our customers happy. I have an experience more than 6 years in plenty refurbishment projects. I will consider myself lucky to make your property look better. Don’t hesitate to contact/hire me and I will give you good quality work for competitive prices.

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Reviewed by Melisha on 31/7/2024

Friendly and professional. Dismantled furniture efficiently. Would highly recommend

Best possible work, honesty is my main moto. I don't cheat with my customer. I always try to make my client happy.

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Reviewed by Aneil on 25/4/2021

Saleh was great, even thought the job took longer than expected and we had to go to two locations. Salah was very flexible and did not complain. He got on with the works and was very pleasant. I would recommend him to anyone and would use him again. Thank you Salah!

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Reviewed by Janet on 2/5/2022

John worked extremely hard to fulfil our brief & also had great vision when considering possibilities. He understood our needs and ensured all snagging was carried out before completion. All builders are currently pushed to the limit with supplies and staffing - John managed this to the best of his ability and was always polite, helpful and friendly.

We are a company with a young and dynamic team that strives to always be informed about the products, solutions and systems sold, both the classic ones and the latest news, the construction team will be available at any time, for any project. Thank you

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Reviewed by Paula on 3/9/2024

Hi, we recently had Florin and his team do some work on my Mum’s garden. He has done an incredible job and we are so pleased with his work. He was very friendly, polite and completed the job in a timely manner and to our requirements and very reasonable and good ideas and suggestions. I would have no problem recommending him and his team again and will do in the future if I know of anyone needing. Thank you for your hard work

Our team has 20+ years of experience in the construction industry

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Reviewed by R on 10/12/2022

Demaj construction gave a reasonable quote and completed the job on time and to a very high standard. We will be happy to use their services in the future.

Hi my name is Conal I’m a enthusiast bricklayer with over 15 years experience. My services included - Bricklaying - structural brickwork - all types of brickwork pointing - Bespoke outdoor porcelain patios - bespoke driveways -fencing -Groundwork’s -general construction - flat roofs - new roofs/repairs My company prides ourself on our work with us being as only as good as our last job. I do truly believe our company goes above and beyond and stand out from the rest!

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Reviewed by Michael on 18/1/2024

Hi welcome to Newman & sons. We're a family based company from Berkshire & also covering the south of England specialising in high quality new builds/refurbishing/emergency repairs/industrial roofs. For over 40 years. Specialist in Roof cleaning/roof repairs / new roofs. Gutters/ upvc Facias/chimneys. We also carry out industrial roofing. We're LABC REGISTERED & only use good quality materials & family tradesmen to get your work done. All quotes are free & no obligation /insurance /emergency. Please call even if it’s just advice. We’re more than happy to help.

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Reviewed by Brian on 15/2/2024

I

Landscaping Flower beds, Border, Fencing, Posts, Gravel Boards, Gardening (hedging, trimming, lawn mowing, shrubs) Brick work Waste removal Painting and Decorating Patio (Slabs, block paving) Handyman Man with the Van

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Reviewed by Reuben on 6/6/2024

Catalin and his team did a really good job putting up two new fences on our back garden. Catalin went above and beyond to ensure we were happy. He even managed a tricky situation with our neighbours. He’s a very nice guy and lucky for us, very customer-focused. Good price. Recommended!

House Renovation

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Reviewed by Saif on 22/12/2024

Vlad and Andreas completed the job on time and in a very professional manner. The workmanship was very good and both are well skilled at their job. The bathroom looks quite nice. Highly recommend ????????

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Reviewed by Jenni on 17/12/2024

I'm a person with a 10-years experience. I offer pro-efficient services, quality, cleanliness, a very good general service.

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Reviewed by Akan on 2/2/2025

I approached Emanuel and his team for tiling of a bathroom wall. They were incredibly professional during the assessment and were very helpful in working around my limited budget. They showed excellent craftsmanship and attention to detail, taking the time to sand down the cut tile edges. Most importantly, Emanuel and his team were very transparent with their labour and material costs with receipts for breakdown. This has won over my trust and I will surely enlist their expertise again soon.

Design and Build services offered from inception to key turn completion. Full CAD drawing and building regulation design services by qualified Architect. Prices broken down to allow project costing and value engineering if required to suit your budget. Fixed price quotations and or estimated costs. DND ltd are a highly respected company offering quality workmanship at reasonable rates

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Reviewed by David on 18/5/2020

David, Adam and the team they employed were very good. They talked through every aspect of the job beforehand and made the costs clear in the contract. The construction was of a high quality and all done efficiently. This construction was completed during lockdown and the team adapted and communicated well throughout the process. Everyone who worked on the job was polite and friendly and professional. During the construction there were minor changes needed which were accomodated well, even after completion.

THE ONLY CHOICE FOR YOUR HOUSE!!! We work with homeowners and their partners to solve the unique challenges of managing house improvments.

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Reviewed by Andre on 19/11/2024

Prestige Construction recently renovated four bathrooms in our home to an outstanding modern standard. Flavius and his team showcased exceptional professionalism, delivering impeccable workmanship without compromising quality. Flavius remained calm and solution-focused throughout, ensuring a stress-free experience. His attention to detail and ability to handle challenges seamlessly resulted in a flawless transformation. We are thrilled with the results and highly recommend them for top-tier renovations!

Djc Contractors has been in business for 15 years, we have carried out many, extension, loft conversions, new build and total refurbishments in the London,Hertfordshire and Essex areas. We have many previous clients that we would be more than happy to show off are work.

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Reviewed by Theresa on 8/3/2023

Living 100 miles from the job, I needed a reliable contractor I felt I could trust. David and his team more than lived up to my expectations. He renovated a complete one bedroom flat from re wire, re plumb, new boiler bathroom, kitchen, flooring, fitted cupboards etc the list goes on. All work was carried out by qualified trades people and certificates of work issued where necessary. He started the job when he said he would, worked long hours and most importantly finished ON TIME, ON BUDGET.

30 years experience

Latest homeowner review

Reviewed by Beata on 27/11/2017

Chris contacted me promptly after putting my job ad and offered his availability straight away. I had solid wood flooring to lay on newly built extension, and it needed to fit the old floor. Chris did a great job, showing great carpentry skills, he worked hard over the weekend so I could have the living room sorted. He is very knowledgeable in his trade, I am very happy with his work and I would highly recommend him. Beata , Stevenage

Welcome to Saltstone Developments. We offer quality works using over a decade of experience to provide you with a turn key package for any project. Make Your Dream Home a Reality. Contact us now.

Latest homeowner review

Reviewed by Alison on 10/6/2021

Excellent work- painted fence, shed and bench as requested. Highly recommended

we pride ourselves in top quality workmanship we are fully insured ,we always keep our site clean and tidy . (no fuss no dust thats us )

Latest homeowner review

Reviewed by Joanna on 26/11/2018

Needed some internal work, including walls and chimney removal. Price was competitive and the work was excellent. Turned up on time, kept us informed and no hidden extras! Not only was the work first class he also took the hassle of building control, submitted the documents and when the inspector wanted an extra bracket for the chimney, he was there, as arranged 2 days later to fit it. If anyone is thinking of needing building work, make sure you include Kevin in your plans.

I am an Interior Designer / Project Manager with a great team of builders who are skilled and possess good, positive, can-do type of attitude. We are in the construction industry since 2002 with residential & commercial projects in the UK and other European countries. We take projects from kitchen refurbishment to full house refurbishment or extensions, loft converssions & office building in the back yard. Our values are: RESPECT HONESTY EFFICIENCY Do not hesitate to contact us for your project! We understand the importance of purchasing a home or improving it hence will help you go through a smooth, great experience.

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Reviewed by eric on 8/5/2023

Very professional, competent and reliable builders. I highly recommend A'tudori and I will definitely use them again for any future projects.

MPF Building Services pride ourselves on working to the highest possible standards. Using fully qualified professional tradesmen to cover all aspects of building.

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Reviewed by Alastair on 20/9/2019

Michael fitted a velux skylight for us. He was professional, efficient and tidy from start to finish. The install was high quality and I would have no problems recommending him.

I am new to Rated People, however I have 7 years experience in the building trade,

Latest homeowner review

Reviewed by Maz on 17/4/2019

I'm afraid i had to change my rating because we came across an issue with a part of bath fitted in our bathroom after the job was done. We contacted Liviu and asked him to come and fix it, after a few times contacting him, he arranged to come in but never turned up and have been ignoring our calls ever since, so i am very disappointed with the fact that there was no after care service provided.

We specialize in brickwork , pointing , landscaping. structural alterations , refurbishments ,extensions, Offer a friendly reliable honest efficient service and have over 30 years experience.

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Reviewed by Thomas on 1/11/2017

Mark was pleasant to deal with, honest, reliable and quoted a fair price. The job ended up not being reprionting due to his advice, but was bespoke work to fix some motorbike ground anchors in a trench of cement. Unusual job, but I discussed it with Mark who was accommodating and completed a good job quickly and conveniently.

I am a bricklayer by trade & have carried out brickwork construction on domestic & commercial to a very high standard for over 30 years also internal alterations, brick & stone arches & fireplaces, & internal decoration

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Reviewed by chris on 8/2/2012

A lovely man and a true crafstman, polite, punctual, superb job, tidied up after, cannot recommend him enough. we are having him back for other work.

We are an experienced construction company, providing a range of services, including; extensions, conversions, new builds, renovations, decoration and repairs and maintenance. We pride ourselves on providing a professional and personal service.

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Reviewed by Chandra on 5/2/2013

Works hard Reliable Gives honest opinion Trustworthy I had bathroom and kitchen done with materials supply and fit. My budget was £3500 but ended with spending tad more than i thought initially. Great work but takes time as he is one man army.

Bricklaying Specialists and General Builders

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Reviewed by garry on 4/3/2014

John and Florin were absolute stars. They completed our work with great professionalism being consistently timely, courteous and extremely helpful. John was very reassuring with many good ideas. He dealt with our work as if it was his own home, always keen to ensure everything that he did was done to his very best. Would definitely employ in the future. Many thanks

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Reviewed by bharat on 12/10/2012

Very helpful and pleasant. Did a good job.

Allrounduk is a family run company providing a professional service to the domestic construction industry. We have been operating for 15yrs and offer a one stop shop for all your domestic requirements from small to large projects and everything in between

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Reviewed by Hanni on 11/3/2019

Cannot recommend highly enough. The work was finished to a really high standard. They were really adaptable when the tiles we had ordered failed to arrive on time. They adjusted their plans and worked really hard to get the work done on time, without compromising on the quality of the finish. They were also really considerate of working around young children, and were very patient with little interruptions from a fascinated six year old!

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Reviewed by Debbie on 27/10/2013

overall very good job done. Very friendly, professional, helpful and completed job in timely manner. would recommend.

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Reviewed by Dominique on 21/1/2016

I thought Sean was polite and friendly and worked efficiently. I will definitely use him again if I need any painting or decorating done.

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Reviewed by Alberto on 15/3/2016

Would recommend

From small repairs to full refurbs I can cater for all your needs, small enough to care, big enough to cope on an adhoc basis and/or ongoing property maintenance. Landlord certificates and inspections also arranged.

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Reviewed by James on 24/3/2018

Very pleased with Zoltan. Worked very hard through snow and illness to get the work done for us. Would highly recommend.. Thanks Zoltan!!

Artan

House Extension in Welwyn

Latest homeowner review

Reviewed by Angela on 20/6/2016

See star rating. I have asked Artan to do further work. He's polite and very helpful and completed the work, in my judgement, to an excellent standard. I would recommend him to my friends and work colleagues.

We are dedicated to quality and details.

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Reviewed by alex on 26/1/2017

Excellent work, high quality. Professional pleasant guys. Danny and his team motivated hardworking, clean tidy 6 months work , very good all-round. Multi skilled trades within company of brothers. Minimum amount of fuss , trustworthy Non smokers, very reliable, kept me updated , good knowledge . Fitted Wren Kitchen,built porch extension , converted garage to studio apartment decorating,plumbing, tiling , new bathrooms and shower rooms. Built fitted wardrobes. internal external doors.

Latest homeowner review

Reviewed by Daniel on 9/1/2014

Andy quoted me for the main job (kitchen refurb) and carried out two smaller jobs in the meantime while I am still planning. Excellent standard of work, quick, and a nice guy. Will be using him again in the near future.

we are a small friendly company who ONLY use quality tradesmen. no jobs to big or small. Free advise and quotes gives.

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Reviewed by Annah on 9/3/2013

a job well done thank you

I am a small reliable business based in Aylesbury. I will complete any domestic maintenance required and gardening service.

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Reviewed by Keith on 2/4/2013

Arrived on time. Did the job well. Very reasonable charge. Recommended.

-Extensions -Conversions -New build ,Refurbishments Garage conversion Flat roofs And more.

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Reviewed by Kim on 3/11/2024

Piotr was meticulous in his work and very knowledgeable. He did a great job for me and I would use him for any further projects I have.

I am skilled mutlitrader with over 10 years experiences. I usually work together with other multitrader as a team.

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Reviewed by Jo on 9/4/2013

Very professional, punctual and polite. I would happily employ this tradesman again and highly recommend him.

Latest homeowner review

Reviewed by Carol on 9/8/2013

Mark was totally reliable and helpful.He kept me informed on progress at all times and did a great job. Thank you

I am a self employed bricklayer with 9 years experience. Hard working, reliable, city and guilds trained specialising in all aspects of brickwork from traditional methods to new build.

Latest homeowner review

Reviewed by Nathan on 9/12/2014

Callum worked on an extension for us all the work he did was of high quality, he helped source materials for us which was a great help. Was very polite and always left the site tidy. Had a small problem tying in coming back to complete a bit of outstanding work but apart from that very happy with all his work and price. Would definately recommend callum for all your brickwork needs.

We are growing building company directed by experienced builders. Our specialisation is extensions, brickwork, carpentry, tiling, garage conversions and general building and maintenance works.

Latest homeowner review

Reviewed by Emy on 5/9/2016

Hired Marcin to do a brick and block wall for a 4meter extension, great job, great ideas. Highly recommend him.

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ground floor extention 40...

ground floor extention 40 square meteres.

Size of extension: 2 rooms...

Size of extension: 2 rooms Height of extension: 2 floors Room(s) to be in the extension: bedroom(s), kitchen It will be a dinning room extension...

single story extension to the...

single story extension to the side/rear of the property, approx. 8 x 6 meters

Rear extension of single...

Rear extension of single storey

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Stud walls, wet room, hallway, conseratory

A extension on the back of...

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Convert back half of garage to...

Convert back half of garage to increase kitchen size, and add room beyond kitchen around 16' x 12'.

Rear extension, flat roof

Rear extension, flat roof

2 storey side extension

2 storey side extension for a semi in Welwyn Garden approx 7mx3.7m. Planning permission granted.

Build Phase 1 Gym & Garage

Hi, We are looking for someone to demolish our existing car port and construct a gym and garage complex in the first instance. We have been granted...

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

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  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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