Some of our top rated extension builders in Welwyn Garden City
Sort by:
- Get in touch
AJK BUILDING is a trusted name in the construction industry, delivering high-quality building solutions with a commitment to excellence, integrity, and innovation. With over 16 years of experience, we specialize in providing comprehensive construction services that include residential, commercial, and industrial projects. Our team consists of highly skilled professionals who work collaboratively to bring each project to life with precision and care. From initial planning and design to final execution, we ensure every phase is handled with professionalism, transparency, and strict adherence to timelines and budgets. At AJK BUILDING, safety, sustainability, and client satisfaction are at the core of everything we do. Whether it’s a small renovation or a large-scale development, we are dedicated to building spaces that last and relationships that grow.
- Get in touch
we will always ensure quality service and respect to your property at the best available price. 7 years experience in brickwork, specializing mostly in garden walls
- Get in touch
Phi Architectural Services Ltd. specializes in providing architectural, structural and project management services from small to big sized residential projects. With more than 12 years of experience and more than 500 projects ranging from refurbishment to new build houses and flats, the firm also have its own team of sub-consultants and contractors.
- Get in touch
We are a family run business, take pride in our work we carry out. We cover all aspects of building works from hanging a door to a complete new build house.
- Get in touch
Experienced builder of a family run business covering a wide range of domestic and commercial work, from handyman jobs to full builds. Reliable and reasonable with recommendations from many happy customers. Plastering Extensions Refurbs Bathrooms/kichens Painting and decorating Conversions Established for over 30 years
- Get in touch
Here at FPA property Services LTD we pride ourselves on the prefect job, our company has grown in size due to our hard work & our outstanding standard of finish. we offer a bespoken services for any size job from the design stage to the complete build. We are proud members of the FEDERATION OF MASTER BUILDER & TRUSTMARK. The only Government Endorsed Quality Scheme. Our services cover commercial & domestic projects. We can take on any size job from a rental touch up to a complete new build.
- Get in touch
We take on all kind of work that you need to do. We have been doing this for almost 8 years. We even do foundations digging muck away etc. Please do contact us for any further information we more then happy to answer.
- Get in touch
Family run building & construction company specialising in extensions, refurbishments and specialist DDA adaptations works. We cover all works trades and will provide an excellent finish to your project. We also carry out hard and soft landscaping!
- Get in touch
Built on Trust. Finished to Perfection. Your property deserves more than an average finish. We deliver professional building and home improvement services with a focus on quality, precision and lasting results. Serving London, Berkshire and Bedfordshire, our team takes on projects ranging from individual room upgrades to major property renovations. Our services include extensions, renovations, kitchen fitting, tiling, flooring, decorating, demolition and garden improvements. We understand that inviting tradespeople into your home requires trust. That’s why we prioritise professionalism, clear communication, respect for your property and attention to every detail. Our promise is simple: quality workmanship, honest service and results you can be proud of. Free quotes available. Contact us today to discuss your project.
- Get in touch
Friendly and professional run business bricklaying for 10 years . We build to the highest standard.No job too small from garden walls to new builds repointing and patios and all work carried out with customer satisfaction in mind.Its people like you that keeps our business going so thank you My Qualifications are City & Guilds Craft, NVQ 3
- Get in touch
Perl Property Ltd is a boutique construction and interior refurbishment firm specialising in high-end residential transformations. Based in Essex and operating across London and the Home Counties, we are known for delivering timeless finishes, flawless detailing, and a level of service that matches the standards of our discerning clientele. Founded by Connor Perl, our company combines structural expertise with a deep passion for design. Every project is personally overseen with a commitment to quality, discretion, and a tailored client experience. We work with select trades, premium materials, and trusted suppliers to ensure our work not only meets expectations — but redefines them. From luxury refurbishments to statement media walls and bespoke living spaces, Perl Property Ltd is the name behind some of the most elegant and recognisable homes in the region — including residences of notable public figures and high-profile clients. We don’t just build homes. We craft environments that speak to lifestyle, taste, and long-term value.
- Get in touch
At Barnetts-bespoke we specialise in high quality custom carpentry and building solutions tailored to your unique needs, proudly serving all areas of Hertfordshire and London we offer high end craftsmanship for a wide range of projects including bespoke wardrobes, kitchens, bespoke storage solutions, and complete renovations Our complete list of services are listed below *kitchens *bathrooms *extensions * bespoke wardrobes/cabinetry *roofing *flooring * summerhouses * Returbishments * new build
- Get in touch
JDL Construction Limited are a Hertfordshire based building company offering both domestic and commercial services. We specialise in all aspects of construction including Home Extensions, New Builds, Garage Conversions as well as specialist Brickwork Contractors. Our company is fully insured and our tradesman are all fully qualified. JDL are members of many trade associations including Constructionline, CHAS, Federation of Master Builders and Federation of Small Businesses.
- Get in touch
Groundworks and multi-trader with strong experience in domestic extensions and general building works. I am also a chartered surveyor, with over 10 years experience. I take pride in delivering reliable, tidy workmanship from groundwork through to completion of extensions and internal works, with clear communication and a straightforward approach to pricing and delivery.
- Get in touch
20 years experience in the trade, I have worked with 24 hour maintenance and emergency companies gaining untold amount of knowledge on all sorts of plumbing systems. More recently I have been working on big building sites installing from new, house refurbishments, bathrooms and boiler changes.
