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Local house extension experts in Harpenden, Hertfordshire

There are 1284 House Extension specialists in Harpenden, and last month we helped homeowners get quotes for their home improvement jobs.

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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

Reviewed by Natalie on 30/7/2020

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

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Reviewed by Gavin on 29/8/2025

Outstanding outcome with oak cladding a 1920s tired staircase. Simon is a true professional and has fantastic carpentry skills. Works very quickly with great care and attention to detail.

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

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Reviewed by JOHN on 9/12/2019

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.

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Reviewed by richard on 1/3/2019

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.

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Reviewed by Jane on 12/7/2008

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.

Family run Building Firm with over 15 years experience and 1000s of jobs.Moved to London from Leeds for better life style for me and my family. Cheap and Affordable prices, why pay more when you can get good quality work for less. Based in Acton/Chiswick and covering surrounding areas Services offered include: • Extensions • Loft conversions • Full refurbunishment •Flat pack assembly and dismantling furniture •Curtain rails, poles and blinds •Tiling and flooring •Doors, locks and handles •Shelves •Painting & Decorating •Exteriors and interior painting •Roofs repairs and replacing •Plumbing •Bathroom and kitchen refurbishment •Insulation •Decking •Garden sheds assembly and dismantled •laminate flooring •Fencing You name it, I can do it, why pay more when you can get professional work for less. Call, text or Whatsapp

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Reviewed by Alan on 17/9/2019

Bart and his team did a great job within a very tight deadline. All services covered for a full refurb. Highly recommend.

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Reviewed by P on 18/12/2010

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.

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Reviewed by Anette on 7/10/2013

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

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Reviewed by Adrian on 12/5/2012

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.

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Reviewed by Benjamin on 20/7/2020

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 .

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Reviewed by Jeff on 6/2/2015

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.

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Reviewed by Tim on 3/7/2021

Quality work, good value, clean, tidy, and punctual. Can thoroughly recommend I and G Building Services..

SERVIHAND

House Extension in Harpenden

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

Reviewed by Justin on 24/11/2021

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

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Reviewed by Kash on 17/11/2019

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

Reviewed by Natalie on 14/3/2019

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

Reviewed by Enea on 30/11/2019

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

Reviewed by Aninda on 29/11/2016

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..

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Reviewed by Reg on 21/3/2022

Hi. We are family based business which is in this trade for many years we are experienced and skilled workers we used to work for big development companies but we decided to work on our own . Please let us start and finish your home improvements. Thank you for reading

Latest homeowner review

Reviewed by George on 4/10/2023

Good work, decent price, I do recommend them, for sure I am going to call them in the future

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.

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Reviewed by Wayne on 19/5/2023

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

Reviewed by Roger on 17/11/2022

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

Reviewed by Peter on 3/4/2018

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.

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Reviewed by Tola on 18/2/2025

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

Reviewed by Ataur on 12/1/2021

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

We are a specialist company in all aspects of building works including extensions, garden rooms, garage conversions, landscaping, paving and groundwork’s company based in Northampton offering the highest quality workmanship. We have over 25 years of experience within industry and currently have an accomplished team of 30 employees, all of which are trained to the highest standard. We are currently looking to expand our portfolio and delve further into the domestic sector.

Latest homeowner review

Reviewed by Emily on 4/6/2024

Didn't come back to finish the jobs. I'm quite disappointed they didn't follow through until the end.

MJJ BUILDERS LIMITED .

Latest homeowner review

Reviewed by Kate on 7/7/2023

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.

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Reviewed by Caroline on 23/2/2014

Very fast service, excellent value. Would highly recommend

Latest homeowner review

Reviewed by Russell on 18/11/2014

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

Reviewed by Annika on 27/12/2013

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!

CMVDL LTD

House Extension in Harpenden

Latest homeowner review

Reviewed by Joshua on 17/6/2013

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

Reviewed by bansri on 12/3/2013

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.

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Reviewed by Christine on 8/1/2014

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

Reviewed by Rebecca on 27/2/2012

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

Reviewed by Curtis on 11/1/2014

excellent service and work provided. job well done.

Latest homeowner review

Reviewed by Alison on 23/3/2013

Efficient, friendly service and a quick, good job completed 2 days after I put my job on Rated People! I was very pleased.

We are a family business with 35 yrs of building.We are very hardworking/polite/clean and tidy. 95% of our work comes through recommendations.We have a large portfolio of works with many client references.All are work force our fully qualified. .

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Reviewed by Medha on 24/5/2014

It is a 5 star rating. He gave my stairs a new look. He started the job on time and completed on time. He did not leave any mess. Reliable. The oak stairs is just very elegant and chic. Thank you Sean. Highly recommended.

T Murphy Construction LTD is a family run business with over 30 years experience. We have a dedicated team of experienced and skilled tradesmen with City & Guilds qualifications. We have expertise in carrying out all forms of commercial and domestic work.

Latest homeowner review

Reviewed by Edward on 21/3/2014

Thanks Tom for a great job.

We are a family run company who strive to offer quality craftsmanship. From garden maintenance to plastering, everything is given the upmost care to give the client what they envisioned. It is paramount our customers are left 100% satisfied.

Latest homeowner review

Reviewed by Jean on 2/9/2013

Jack kept me informed at every stage, he and his team were professional, friendly, reasonably priced, worked hard, cleaned up and removed all rubbish and took a pride in their work. I was more than pleased with all the jobs they did for me and will be looking to book them for any work I need doing in the future. A very big thank you to them.

I am a highly skilled Bricklayer and General Builder based in Bedfordshire .Myself and my small team of men have gained an excellent reputation built upon quality workmanship reliability and trust.

Latest homeowner review

Reviewed by John on 28/8/2014

Prompt, efficient, and effective solution to drainage problem. Would certainly use again. John HP21

We specialise in designing and building thermally efficient extensions in either glass or solid roofs that can even transform old conservatoires into really great modern extensions. using thermal/solar glass can transform your home with windows and doors

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Reviewed by Richard on 8/11/2013

Friendly professional service

We specialise in Commercial Groundwork & Residential extensions. This includes: Structural Underpinning, Retaining walls, Trench foundations, metal reinforced concrete walls & floor slabs, Garage and Basement conversions,

Latest homeowner review

Reviewed by Tania on 1/4/2022

Andrew from Eland Construction left us with a very good impression, sadly we had to postpone the job for personal reasons, but he was very knowledgeable and left us a feeling of trust right from the start. He did listened to our needs and understood perfectly well the proyect we had in mind. I will call him again.

We are a friendly and reliable team who pride ourselves on providing high quality workmanship.We are devoted to our responsibilities towards customers and always deliver of high quality finish on time and to the budget. Our aim is “customer satisfaction”

Latest homeowner review

Reviewed by Paplu on 15/11/2017

Artur replaced our kitchen worktop and installed our integrated appliances. Artur is very a meticulous professional that understands your needs and your desired high quality end finish without you having to explain the job thoroughly. Artur had always been available for questions and is someone you can rely on for advise. I would highly recommend him

adam building & decorating company offers general construction including additions.the best service with emphasis on quality and details.we are commited to meeting our clients needs and ultimate satisfaction.Our service is available.

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Reviewed by Mia on 15/9/2014

Adam did a great job at my property installing blinds in the kitchen and repairing a wardrobe, I would not hesitate to recommend his services.

Small builder speacializing in extensions new builds an all building works steel works drainage

Latest homeowner review

Reviewed by Costas on 26/5/2024

Good clear & transparent communication, prompt & reliable, high quality work at a fair price - what more can I ask for. I highly recommend Danny. I would absolutely no hesitation in using Imperial Build again.

Quality is our job !

Latest homeowner review

Reviewed by Peg on 13/7/2016

Gerry and Dave are friendly and reliable. They painted our g/f really well and very efficiently so we could have our living rooms back quickly!

Bathroom refurbishment & installations rated as professional and excellent by several happy customers. Over 10 years experience.

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Reviewed by Rajeev on 30/7/2017

Tony and his friend Mario completed the bathroom full refurbishment on time. Work quality was very good at every level : starting from plumbing, tiling and final finishing. The rates were very competitive as well. Kept the house clean when the work was going on. Being impressed by his quality and openness, I gave them some additional work for my second bathroom. Overall I am very happy with his quality of work on competitive cost.

Fairtrade builders

Latest homeowner review

Reviewed by Steve on 29/9/2021

Had a quote for roof repair which included for 1 missing tile, re fitting existing tiles, repairing flashing and gutter cleaning did not accept quote. On advice from another roofer just had the one missing tile replaced since there was no evidence of any leaks inside the loft or 2nd floor ceilings.

Skilled groundworker with over 25 years of varied experience, including block paving and drainage work.

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Reviewed by Carolyn on 6/11/2012

I would recommend Andy. He spent time evaluating the job required with a view to looking at less costly but effective options. Most of the time I was out at work, he called everyday when he was leaving to update me on progress. He communicated clearly and so there was no confusion with what the job involved and the final cost. He was also very nice to my dog. Thanks Andy.

Welcome to Opuluxe Building and Damp Solutions! With over a decade of specialising in the damp proofing industry and expert plastering services, our company has built a solid reputation for delivering dependable, high-quality solutions. As a family run business, we are a dedicated and professional team known for our reliability, strong work ethic, and attention to detail standing out from the larger companies! We take great pride in maintaining a clean, safe, and presentable work environment on every project. All of our work is backed by a comprehensive 15-year guarantee, ensuring long-lasting protection and complete peace of mind for our clients.

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Reviewed by Andrew on 1/7/2025

Very good standard of workmanship. Paid good attention to detail and friendly. Price was as initially agreed. Recommended.

Arch-con limited

Latest homeowner review

Reviewed by Roberto on 1/8/2025

Very friendly, trustworthy and fair priced handyman. He went above and beyond to complete a tricky job. Very happy with the service will happily use again. I Highly recommend.

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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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