The quick way to find a local Loft Conversion specialist in Knebworth

Luke Allsop

Loft Conversion

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Hello. My names Luke. From Allsop design and build. 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

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Reviewed by Santi on 30/11/2025

Luke came a sorted some squeaking board on my top of stairs Landing. Did a superb job, no squeaking after hea finished. Luke is very kind, respectful and proud to do his job correctly to keep customer happy. Thank you Luke. 5*****

SEAN WILSON & SON

Loft Conversion

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We are builders based in co derry , we travel from county to country to work for the right clients , building relationships and long term partners ... Throughout the uk and ireland .. We have vast knowledge in house building groundworks ,underpinning ,renovations ,extentions ,complete refurbs ,medium size sites with the right investors .. Profile is in the making .. pictures references will be in coming weeks as new to this

AMYS ELECTRICAL

Loft Conversion

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We are a construction company that provides all aspects of building works from house extensions to simple electrics. We work within Herts, Beds and Bucks and are based in letchworth . I am a fully qualified NIC electrician and have 15 years experience in construction.

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Reviewed by Rebecca on 21/10/2020

We were hugely impressed by Courtney and his team. Everything came out on budget, and they were fast, reliable, and left the house clean and in order each day. Very nice people to work with, and can't recommend them highly enough. We are using his team again for an additional extension.

Razas Direct Ltd

Loft Conversion

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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.

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Reviewed by Jyoti on 25/1/2026

Denis did a fantastic job. He arrived on time, he is very knowledgeable and knows his craft, worked outside in the cold and finished the job efficiently. We are so pleased with his work, railing looks good and even the neighbour was impressed and said how nice it looks. We will definitely ask Denis again for any future building works and I would not hesitate to recommend him too.

S 2 PROPERTY SOLUTIONS

Loft Conversion

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With 15 years of experience we are a small building firm which values customer satisfaction above all else. We specialise in bifold installations, double glazing installations, repairs and finish carpentry. Our experienced team is able to fulfil all of your domestic requirements, from painting your home to complete extensions and renovations.

AJW Specialists

Loft Conversion

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We are a diverse and efficient business covering all aspects of the building trade. Myself I studied at college as a bricklayer city guilds qualified. I can turn my hand to most jobs and look to offer a friendly and reliable service.

Prestiges Construction Ltd

Loft Conversion

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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 Eleanor on 11/9/2025

Flavius is an excellent builder - and his team are quick, efficient and professional. Apart from that, I want to say as someone who was completely new to building projects, Flavius was extremely helpful in advising me (as I had no project manager/architect overseeing things) and made the whole process so much better. I am entirely delighted with the resulting space - it is a total transformation! - happy to recommend Flavius and his team to anyone. On time, on budget and an excellent result. 5 stars.

Plasterwise

Loft Conversion

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Hi my name iOS Ian peters proprietor of plasterwise Dampproofing we offer great prices on job good clean work service and respect for your home call time

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Reviewed by michele on 28/11/2021

Hired Ian to Build a single story extension and install new kitchen and downstairs shower room . Crew were very pleasant and very helpful in planning the the job ahead of them. Very pleased with the work carried out looks amazing Having to put up with an awkward neighbor didn't deter them from doing and completing the job. The price put in was very reasonable. When the work was ongoing the area was always left clean and as tidy as possible . I would recommend Ian 100% , and would use him again.

KST Homes LTD

Loft Conversion

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KST Homes delivering personalised homes with over 20 years experience in the industry. We carry out works including new build, renovations and extensions. We have team of tradesmen to all sorts of building works.

J MCMAHON LIMITED

Loft Conversion

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Bedfordshire based carpentry and property improvements company . offering carpentry internal and external , as well as having a strong diverse team of different trades operating within the company , all aspects of building work taken on board and a professional job from start to finish .

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Reviewed by Christopher on 27/3/2026

Very unprofessional Postponed the agreed date and then ignored all messages Avoid!

W Peat development

Loft Conversion

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If you are looking for anything from a new extension to a renovation, or down to the smallest job, make sure you get in touch with the expects here at W Peat Development.

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Reviewed by Gillian on 6/12/2015

Wayne and his team did a great job, i am very pleased with my fitted wardrobes. They are stunning. i gave good for reliability only because Wayne is so busy it took a while to actually get the guys in to do the job, several months. i love them and they did a good job so worth the wait.

Jdprojects

Loft Conversion

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Jd projects have been going 28 years in the construction industry,we are a family run business operating from ruislip covering greater London and beyond. We specialise in all thing building from bathrooms to lofts fencing tiling and more. We would love to hear from you either it be a small job or large project expect a friendly timely quote. John Jdprojects

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Reviewed by Sam on 25/11/2025

Mill House LTD

Loft Conversion

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Honesty, good workmanship , 40 years as a contractor, helpful, nothing is too big or too small, no over pricing, London based. Knowledge of all property aspects, including laws and management, politeness and total respect to our clients, and their properties You will not be disappointed

JB Plastering

Loft Conversion

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Hello, I have been a plasterer for 18 years and building for 25 years. Plastering is my main trade but I am a good brick layer and general builder.

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Reviewed by Ema on 30/5/2017

Polite speedy response, unfortunately needed the job completed asap and he was busy this week. Would contact again for future work

B M Plastic & Building Services

Loft Conversion

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B M Plastic & Building Services is a well-established building - maintenance and landscaping company working in Essex and the surrounding area's, having completed many successful projects.

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Reviewed by Graham on 16/11/2017

We had bob and his team, jack and ryan in to do a dining room extention on the back of the house, also decking and a pagoda built. We are so pleased, they did an amazing job. Top quality. They were there every morning when they said they would turn up, everything was explained as it went along. Cleaned up every night.we cant recommend B&M Plastics enough. They were brilliant. Only builders we would ever use now if we needed work doing. A massive thank you to all that worked on our dining room and garden.

Future Designs 2020

Loft Conversion

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**Professional Remodeling & Building Services** We specialize in high-quality kitchen, bedroom, and bathroom remodeling, delivering exceptional craftsmanship tailored to your vision. Our team is also experienced in building works, including extensions and loft conversions, providing seamless integration and functionality for your home. Whether you're upgrading a single space or transforming your entire property, we ensure top-notch results, attention to detail, and customer Contact us today to bring your dream project to life!

JJ'S Landscapers

Loft Conversion

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JJ's Landscapers is a reputable landscaping company that brings over a decade of valuable experience to homeowners. Our primary goal is to create and maintain breathtaking outdoor spaces that surpass our customers' expectations. We understand the importance of personalized service, which is why we prioritize our clients' visions and requirements above all else. Our dedicated team of professionals excels in a wide range of landscaping services, including lawn maintenance, garden design, irrigation systems, hardscaping, and more. By hiring JJ's Landscapers, homeowners can expect meticulous attention to detail, timely project completion, and an unwavering commitment to customer satisfaction. We take pride in transforming ordinary properties into stunning havens, enhancing curb appeal, and providing a tranquil environment for relaxation and enjoyment

Val's Construction & Groundworks

Loft Conversion

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WHO WE ARE Viv Construct Group provide a variety of professional groundwork services. We carry out all forms of groundworks construction: underpinning, reinforcing concrete, Driveway Tarmacing, Road Forming, Pavement Tarmacking, Concrete Driveways, Concrete Pavements, Garden Maintenance, Front Patios, Garden Patios, Swimming Pool Slab Laying, Driveway Slab Laying, Drainage, Ducting, Landscaping, Footpath Resin Bound, Drop Kerb and more. What sets us apart is our unwavering commitment to professionalism and efficiency. Our highly skilled team utilises the latest equipment and follows industry best practices to ensure that every project is completed to the highest standards. We prioritise safety at every step, adhering to all regulations and guidelines to create a secure working environment for our team and clients alike. Check out our site https://vivconstruct.com We are one of the leading groundwork Cambridge based and have decades of experience working with the wide variety of buildings that are found in Cambridgeshire. We work with: buildings of different ages, different types of buildings with different forms of construction, and all shapes and sizes, as you would expect in a historical city like Cambridge. We provide a variety of professional services from getting the ground ready for new construction work to repairing and reinforcing existing buildings. We carry out all forms of groundworks construction: underpinning, reinforcing concrete, Driveway Tarmacing, Road Forming, Pavement Tarmacking, Concrete Driveways, Concrete Pavements, Garden Maintenance, Front Patios, Garden Patios, Swimming Pool Slab Laying, Driveway Slab Laying, Drainage, Ducting, Landscaping, Footpath Resin Bound, Drop Kerb and more. We want to give our best at all times so we are assessing our work and looking for any improvements that can be made.

KINGSTON SURREY CONSTRUCTION LIMITED

Loft Conversion

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Dear Customer, We are a construction company with over 25 years experience. We undertake all aspects of building work, including new builds, extensions, lofts, total renovations, new bathroom and kitchens. All work guaranteed and certified for, GasSafe and NiCEiC approved on completion.

Latest homeowner review

Reviewed by John on 28/1/2026

We got Kingston Surrey Construction in to undertake a full ensuite refurbishment after too many leaks and drips over the years. They provided a competitive quote and were available to undertake the work quickly to suit our needs. They worked at a steady pace with a focus on doing it right rather than doing it quickly. Their communication was good and they were as tidy as you can be with such a job. Overall we are very pleased with the outcome of the work, many thanks.