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How does it work?There are 1166 House Extension specialists in Welwyn Garden City, and last month we helped homeowners get quotes for their home improvement jobs.
Take a look at our House Extension specialists profiles, read reviews and request quotes directly.
Costa & Anderson services are doing our best to offer you high quality at low prices. We can do more for you not just building work but can also advise,building design and help with what materials to choose. Kind Regards Costa & Anderson Team
Latest homeowner review
We have the home we wanted so we are happy with the job. It wasn't just refurbishment, but constructive changes took place and also rooms were remodelled, ceiling constructions were redone and new floors were laid down. The new wall frames were built according to our specific request and in the end we were satisfied by the final job as well.
ACCOMPLISHED PLASTERING AND BUILDING SERVICES. SPECIALISING IN BUILDINGS. LOFT CONVERSION. PATTEN CONCRETE. PLASTER RESTORATIONS. CELLAR TANKING.FOR BEAUTIFUL ROOMS. SOVEREIGN APPROVED DAMP PROOFING. EMERGENCE.ROOF.REPAIR. FULL PUBLIC LIABILITY INSURANCE
Latest homeowner review
Clear communication detailed quote and did exactly what was asked,friendly and helpful towards my tenants,would use again and wouldn’t hesitate to recommend.
General building services extensions loft conversion roof repairs
Latest homeowner review
Did a really excellent job decking our garden. Efficient, friendly and professional throughout, minimum disruption and a good price. Would definitely use again.
Joinery and catpentery services at higher standards on low prices
Latest homeowner review
Found Grabiel on rated people and was apprehensive at first as there were no reviews, but there was no need to worry . Turned up in time, did what was asked and cleaned up after himself when finished. Cut two oak work tops and routered the hole for a Belfast sink. Wouldn't hesitate to recommend .very reasonably priced.
hi we are based in queens way, we offering high standard work, a friendly team of carpenters, tilers, plumbers, decorators,certificated corgi, dry liners, carpet layers etc. with over 10 years experience
Latest homeowner review
Based in Knebworth, our highly experienced team work with clients both locally, and further afield to undertake Domestic and Commercial projects. Whether you'd like us to carry out a basic fit-out on a small commercial office, domestic home improvement projects or a full fit-out and furnish of something much larger, no job is too big or too small for our team.
Latest homeowner review
Dan and Leon are amazing. Diligent, punctual, good a communicating and finished the job off in its entirety and leave no snagging. Highly recommend!
A LITTLE BIT ABOUT US! Electricians Direct London is a well established, family run electrical business based in Fulham ,London. We provide a range of electrical services throughout London and the surrounding areas for domestic, commercial customers. Our qualified electricians can help with everything from electrical installations and fault finding to PAT testing, rewiring, maintenance and inspections. At EDL we are a family run electricians providing a fast and efficient electrical service coupled with a personal touch. Whether you are looking for an electrician who can provide PAT testing, home rewiring or even a complete new build electrical installation service we will complete the project on budget and on time.
Latest homeowner review
Brilliant work. Very professional and very clean. Friendly service and will definitely use them again. They have quoted me for work in a few months. Very efficient and hard working team.
We are based in Edgware ha8 7SX,we are 3 people working plus another guy working part time.We have experience in what we are dooing,tiling work,painting jobs'paving slabs,gardening,rendering and much more.For more information contact us by email or phone.
Latest homeowner review
I’m really pleased I found Alex! He came and quoted the job quickly and began work quickly . He worked around my week to get the job done , arriving at 6.20 the first day as I had to leave early for a meeting He is very tidy when working , i had to work from home a few days and you wouldn’t know he was there ! His work quality is fantastic , he completed the job ahead of time , explained everything to me and is very personable and polite . A really , really nice guy. Would recommend and use again
Offering a wealth of property maintenance knowledge ranging from roofing to silicone installation. Fully trained in bricklaying/painting & decorating/project management among other things. All certification and insurance documents available if requested. I’m a fully established builder with a methodical attention to detail. I have a good imagination when it comes to designing landscapes or renovating inside of a property. I am literate in reading and running builds from architects drawings and can lay any type of drainage from engineers instructions.
Latest homeowner review
A trustworthy and reliable gentleman, and a highly experienced builder who has also helped me with house repairs
I have been working on the construction market for 10 years. We are a reliable company. We always keep our promises and we always finish the work on time.
Latest homeowner review
Excellent job and completed within a week. I gave my ideas for a revamp of my garden and Iosef helped with some additional suggestions. Him and his team were very respectful of me and my home and I am delighted with our new garden.
Latest homeowner review
Great customer service and a refreshingly honest tradesman.
Welcome to Ellis Carter, your trusted partner for all your renovation, plastering and decorating needs. As a dedicated team of professionals, we take great pride in providing quality services with attention to detail and customer satisfaction at the forefront. We understand that every project is unique and deserves the utmost care and precision, whether you require a wall decorated, plastered or full property renovation, we strive to deliver impeccable results that exceed your expectations.
Latest homeowner review
Craig did a great job! Quick and clean!
21 years experience in construction.Attention to details from the start of your project right through to the end
Latest homeowner review
Punctual and efficient. Good job done
Providing a professional service for painting & decorating around the Greater London & surrounding areas. Giving customers to advice to get that professional finish in there homes.
Latest homeowner review
Dave painted my whole house. Nice guy and worked well . Told me 4 days and after a few late nights got the job done. Time keeping is not his strong point but work is great and happy with him overall. Would recommend him and certainly use again. Good friendly and chatty man, over all we are happy with his work. Painting looks good.
It's that time of year.roofing guttering and repair. I have 28 years experience in the building trade. I started out training as a stonemason which lead to general building and am qualified in both. Please see pics for examples of some of my work. I will take on work ranging from small maintenance jobs up to extensions and house builds and anything in between. Brick/stone walls, rendering, fencing, patios, garage conversions, roof repairs to name a few. I am fully insured and reliable and guarantee to keep good communication throughout any work I take on from beginning to completion..
Latest homeowner review
Great job done. Steve is approachable, punctual and great at what he do. Would recommend.
Universal Construction Ltd is a London-based building company established in November 2023, specializing in domestic construction projects. Registered at 118 Sydenham Road, London, SE26 5JX, the company focuses on the construction of domestic buildings ?. Services Offered • Home Renovations: Including kitchen and bathroom refurbishments. • General Building Work: Covering various aspects of domestic construction. • Property Maintenance: Ensuring the upkeep and repair of residential properties. A recent customer review highlighted a successful renovation project, praising the team’s professionalism and quality of work . ? Additional Information • Owner: Gezim Bajrami • Checkatrade Member Since: 2025 • Service Area: Primarily London • Work Undertaken: Both domestic and commercial projects • Estimates: Free estimates are provided • Insurance: Public liability insurance is in place
Latest homeowner review
Would highly recommend the work of the team at Universal Plastering; they were very clean and efficient and the work has been delivered to a high quality. Many thanks Gezim and team!
'B Putney and sons Property services is a family run business offering high quality and friendly service to clients on their projects whether large or small. Honest, reliable, clean, and trustworthy, B Putney and sons Property Services takes pride in all of our works, giving a high level of attention to detail on every job we do B Putney and sons Property Services aims to make all projects as efficient and cost effective to our clients as possible, and we consult with clients every step of the way to ensure there are no hidden extras We pride ourselves on the fact that we get a great deal of repeat business from satisfied customers who also pass their recommendations on to others. We are happy to supply references on the quality of our work
Latest homeowner review
Razas Direct Ltd. is a small friendly company providing home and office renovation and garden landscaping services ideal for homeowners, business executives and investors. With our services you will be able to change entire look of your home or a garden.
Latest homeowner review
A nice guy, who did the job, but I was glad to see leave!Substantially under estatimated the time the job would take. Despite being home, he made poor decisions without communicating with me e..g. initially fitted handrails stupidly , intended on leaving base of initial hadraill, left bricks on drive (despite advising him of attempted break in) expected me to get rid of waste, asked4payment mid way through (an intended 2 day job). Asked for more money after job was done, despite agreeing the price at outset
Hello. My names Luke. From Allsop construction. I am a carpenter and all round general builder, we are friendly and happy to help with any problem you may have. Looking forward to hearing from you. Many thanks
Latest homeowner review
Luke did a garage conversion for us and we are very pleased. He and his trades were professional, considerate, tidy and very efficient. Luke communicated with us and was completely trustworthy. AND the job he quoted was good value and did not change. He ended up doing some extra (paid) bits for us on request. We would highly recommend and use him again.
Quality of work is of the up most of importance but would be nothing without a polite punctual cost effective hard working tradesman providing it all in one package
Latest homeowner review
GOOD MAN, GOOD JOB.
Lignum Build are a friendly and conscientious work team that take pride in every job we do whether big or small. We aim to bring our projects in on time and on budget, specialising in extensions, lofts and interior refurbishments.
Latest homeowner review
This turned out to be a job that required ingenuity as well as craftsmanship and care. We got a beautiful and sturdy result which we are delighted with. Faultless on tidy working etc. Very pleased indeed.
Latest homeowner review
It was a little difficult to pin him down to a date to do the work, but he did a good job at the agreed price.
Latest homeowner review
DMN Building provided excellent service, despite some difficult weather. They were punctual and timely on the repairs they did. They did everything they said they would when they they said. Communications were great by phone and email. We had been concerned that the new bricks would be difficult to match to the old bricks, but they nailed it. Our new wall looks better than the old! A great job and a firm that not only will I use again, but one that I highly recommend to others. They were top tier and no more expensive than any of our other quoters.
Latest homeowner review
We chose to use A&M Carpenter for the refurbishment of the bar in our village hall. The bar serves many purposes so the design had to be very flexible as well as give a good feel to the room and the Hall in general. A&M Carpenters has made us a bar that far exceeded our expectations both in terms of final appearance and quality of products. We can only give A&M Carpenters our highest recommendations. Thank you very much to Alan and his team
Latest homeowner review
Paul did a first class job, kept everything clean whilst working flat out. And in the end gave us a wonderful new loft space.
Welcome to Herts Construction Services Ltd. With over 20 years of construction experience we offer a variety of construction services. From concept to completion we at Herts Construction pride ourselves on delivering a professional service with excellent quality at very competitive prices. Consistently delivering customer satisfaction we have gained and maintained an envaluable reputation through word of mouth referrals.
Latest homeowner review
Contacted me promptly and professionally and was onsite in a couple of days to assess the project which was to lay a new patio and astro turf. Got a quote through the same evening, with working beginning a few weeks later. Miri was always punctual, and made sure everything was clean and tidy at the end each day. The transformation was amazing all my friends can't believe how great it looks. A very competitive quote, very happy with the service received. Highly recommended.
Hi you need a skilled carpenter to do the job you need ? doors,kitchens ,laminate-engineering-solid flooring,skirting,decking,shed,green house.! You just find one, whit over 10 years experience skilled cscs and liability insurance .
Latest homeowner review
Dependable. Great job. Reasonably priced and willing to go the extra mile. Would highly recommend.
Team of experienced builders specialized in new brick work, stone and bricks repairs, all types of render, patios and paving. Trust the experience.
Latest homeowner review
Quality work, good value, clean, tidy, and punctual. Can thoroughly recommend I and G Building Services..
MULTI TRADE experts in maintenance, tiling, kitchen renovation, gardening, painting, building & fixing. More than 10 years of experience in these sectors. Honest & reliable team
Latest homeowner review
Kris and Carolina were very professional and polite in completing the job. The job was expanded by me to include laminate floor replacement, refitting a toilet and a light refurbishment of the toilet including plumbing, carpentry and decoration. The job was completed with a good finish in a few days.
B.R.V. LONDON LIMITED Electrical contractor offering full electrical services by a qualified electrician in both the domestic and commercial sectors. From carrying out PAT testing, to household re-wiring. We operates in many areas within London including, North London, Central London and East London. We provide an emergency electrician service to all our customers. Our years of experience with residential properties help us get the results that you?ll love. From re-wiring to extra lights or repairs, we offer a range of services at competitive rates
Latest homeowner review
Pleasure to work with Rado, job well done.
BNT Construction ltd offers a full range of construction services. We take pride in offering competitive services at competitive prices. Services ranging from Groundworks to full house refurbishment or home maintenance ,drainage , basements , piling . Also we can pride ourselfs as the fastest and reliable builder as per customer satisfaction . Latest extension completed from the aprovals of documents and council agreement 4 and half weeks thats based on demolishing the existing build and rebuild the entire extension with fitted kitchen underfloor heating etc. Quality and profesionalism are and always be a priority !!!! Team BNT
Latest homeowner review
Excellent service! Will definitely use again!
B.S. Builders LTD, We are a family new business company with 15 years of experience in UK and Europe based in London. We take over jobs such as Lofts, Extension,Full Renovation, Doors, Floor, Kitchen, Bathroom, Electrics, Plumbing and general building jobs. We are experienced builders over 7 years in UK looking slowly to create their own family company which can provide services all over London’s area. Our slogan is “Engineering your dreams withs us” and you can achieve that if you trust us. Or objective is you to feel happy after the job is done. If you have something based on our criteria we’ll be happy to partner. Thank you for your time.
Latest homeowner review
Good job, good final working project
Welcome to D Grand Homes Ltd, a beacon of excellence in construction and home transformations with a legacy spanning over 14 years. Our skilled team prides itself on being respectful, polite, highly professional, efficient, and consistently meeting deadlines. We specialize in a wide array of services, including extensions, loft conversions, new builds, and comprehensive refurbishments. At D Grand Homes Ltd, we are committed to delivering a first-class finish to every project, showcasing a meticulous attention to detail that sets us apart. Whether you are envisioning a new living space, enhancing existing areas, or embarking on a full refurbishment, our team has the expertise to turn your vision into reality. What distinguishes us is not only our commitment to quality but also the scale of our capabilities. Our team, comprising up to 20 skilled professionals, is complemented by a network of reliable subcontractors specializing in plastering, landscaping, bricklaying, electricians, and more. This collaborative effort ensures that every aspect of your project is handled by experts in their respective fields, guaranteeing a seamless and top-tier outcome. Choose D Grand Homes Ltd for a transformative experience marked by skill, professionalism, and an unwavering commitment to excellence. Whether you're planning an extension, loft conversion, new build, or a comprehensive refurbishment, our team is ready to exceed your expectations.
Latest homeowner review
Daniel provided a competitive quote. I wanted Howdens kitchen and he allowed me to directly deal with Howdens. So in effect I paid the Howdens trader price. The best part was for him to suggest some additional work which made a lot difference. I really appreciate him for that. He charged extra but it was worth it. Daniel and Team worked very professionally and finished the work as agreed. The most important is that Daniel is a good man. I will definitely call him for future work. Highly recommed
Builder with excellent attention to detail. All building services catered for. Specialize in finishing trades, however can bring a project from initial plan to completion. Based in Barnet and serving London and surrounding counties. Fast efficient, timely and competitive. Customer comes first always. Will strive to meet the requirements and vision you are trying to achieve..
Latest homeowner review
Southern building contracts ltd are a roofing multi trade building company. The company originated from roofing 25 years ago and has developed and expanded to carry out building work to both domestic and commercial property’s. We carry out full property renovations, managing and carrying out all associated building trades. Sub contractors are managed directly by us for peace of mind from the customers to deliver from start to finish.
Latest homeowner review
Excellent work completed by friendly & professional company. Highly recommend
At RnM Building Services Ltd, we strive to please our customers to their best satisfaction. We do a variety of things, such as:Carpenting, roofing, extensions, steel/structure work and lots more. We promise as a company that we will keep our word and we'll make sure we leave no customer without 100% satisfaction.
Latest homeowner review
Straight-talking, ran his team well, good quality workmanship
We are a family run business that specialises in Fibreglass roofing and building company with over 20 years experience in the industry, we can fit fibreglass to almost any environment, We have one of the best names in the business and take pride in all our work from quoting the job to finishing the job . We have our own teams of trades plumber joiner , plasterer , electrician for every job we can complete start to finish , I have a architect and Structal engineer for early stages in any new build. No upfront fees either , we always happy for you to call in and see our projects as we undertake them and our customers for peace of mind.
Latest homeowner review
Great job very professional
A-TECH BUILDING SERVICES LTD is a building company based in St Albans & Toddington, we are a family run business who pride ourselves on our workmanship. All our staff are time served and have many years experience in their given trade. Please see our website.
Latest homeowner review
Very professional and timely and did a great job connecting everything properly for us. Very grateful. Restored my faith in tradesmen.
We are a team with over 20 years of experience on building industry. We offer these services Driveaways, house extensions, Loft conversions, garage conversions, Summer houses, Bathroom fittings , Patios, landscaping, Fully refurbishment, etc.
Latest homeowner review
Thank you soo much I m sooo happy About your work And Driveway you make for me.Excellent work you Done for me clean and tidy work i will tell my all frend if they wan't to make Driveway they should call you first I hope you gonna do my Another driveway soon Thank you sooo much again
MJJ BUILDERS LIMITED .
Latest homeowner review
Great service, very quick response time, really helpful collecting and installing a new washing machine. Would highly recommend. Thank you
We have completed many high end projects with over 20 years of experience. We pride ourselves on making our clients happy and proud of their homes. We give a great service and are always here to help and give advice, no matter what time of the day it is. We have a strict policy on time keeping and making sure all the the finer details are meet for the client. Being polite and helpful has got us where we are today.
Latest homeowner review
Very fast service, excellent value. Would highly recommend
Latest homeowner review
I commissioned Contemporary Interiors to convert my loft into a bedroom and shower room and to re-roof my house. The works were completed to a very good quality and the builder took great pains to ensure that the fit and finish was what I wanted. The various teams that worked on the project were helpful, hardworking and always willing to go the extra mile. This is a local company (North London) and I recommend it.
I am a qualified tradesman with over 30 years building experience in the London and surrounding areas able to undertake large or small jobs with confidence.
Latest homeowner review
James replied relatively swiftly. After assessing the job, James was able to start at a mutually convenient date. We were concerned that we'd have a potential issue in matching our mortar colour-shade but James put our minds at rest and surpassed our expectations. We've since called him back to do another job for us, which he did exceptionally well too. We'd have no hesitation whatsoever in recommending him. He's punctual, reliable, trustworthy and does a terrific job. Thank you James!
Latest homeowner review
very good, they were on time, and they even waited for me to go to Ikea and get an extra part due to Ikea missing parts in the package. Would definitely recommend their services.
Latest homeowner review
griffin builders were flexible as the job went along. We made changes as we went along and he was absolutely fine with that. I have always seen him calm and willing to give advise and go out of his way to get us samples, etc. Never was he ever flustered and always in a good mood. He was always calm and approachable . Very good attitude and did an excellent job with no cutting corners. He had pride in his work and maintained high standards throughout. His knowledge of hard landscaping is second to none.
Latest homeowner review
Complete bathroom / shower room / cloack room refurb. Job wasn't done by Voytek himself and so we had issues, HOWEVER Voytek provided a first class after care and resolved ALL our issues to high standard at no additional cost!. Very reliable and honest, which is very hard to say about any tradesman after a job is completed. I would recommend Voytek no problem.
Latest homeowner review
This job was done really well and at a very reasonable cost. Daniel gave us suggestions that saved us money and also made the most of the space we had to use. He was a very fast worker and left the house tidy each day. We would not hesitate to recommend and would certainly use again.
All types of plastering and rendering work, painting, decorating with a guarantee of good quality.
Latest homeowner review
excellent service and work provided. job well done.
Latest homeowner review
Most impressed, they were on time, veryclean and very effecient.....thank you.
Latest homeowner review
Efficient, friendly service and a quick, good job completed 2 days after I put my job on Rated People! I was very pleased.
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