The quick way to find a local House Extension specialist in Harrow

SINEVIR CONSTRUCTION LTD

House Extension

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Sinevir Construction is your trusted partner in construction with over 15 years of experience. We offer a full range of services, including plumbing, tiling, bricklaying, plastering, carpentry, bathroom installations, and building homes from the ground up. We guarantee high quality, adherence to standards, and timely project completion. Our team of professionals uses the best materials and advanced technologies to ensure durability and reliability. We also provide competitive prices, offering an excellent balance of quality and cost. We value open collaboration and consider all your preferences at every stage of the project. Clients choose us for our professionalism, accuracy, and commitment to quality. With Sinevir Construction, your construction dreams become reality, backed by superior results and the best fair pricing.

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Reviewed by Phillip` on 1/5/2026

Cannot rate this company highly enough; they were brilliant. The quality of the work was great; they took pride in what they did. They came and quoted, and provided a clear statement of work on what we agreed. They completed the work quickly. Turned up when they said they would, and if they couldn't, they let me know. Really good communication. They were so polite, courteous, and just generally really nice people to have in your house.

Chameleon Refurbs

House Extension

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Chameleon Refurbs have over 25 years experience in all types of Building Refurbishments so choose Chameleon Refurbs with confidence.

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Reviewed by Denise on 24/4/2026

Hafiz Imran

House Extension

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Hi I am sole trader and I have been into tiling industry since 2009 . I have vast experience in tiling floor and walls. I am new in rated people but not new in tiling industry..

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Reviewed by Goretti on 5/10/2020

A true expert at his job. Did a fabulous job with a lovely personality.

Prestiges Construction Ltd

House Extension

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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 Robert on 5/5/2026

Turned up on time and got going immediately. Very polite and kept me informed throughout the build. Would 100% recommend this very hard working team. Huge thanks.

CHIS REFURBISHMENT CARPENTRY JOINERY TILING PLUMBING ELECTRICALS

House Extension

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HELLO. MY NAME IS GRIGORE CHIS A MULTI TRADESMAN WITH MAIN TRADE CARPENTRY, JOINERY WHO WORKS IN PARTENERSHIP WITH 4 OTHER PROFESIONALS. WE COVER A LARGE RANGE OF TRADES LIKE CARPENTRY, ELECTRICITY, TILING, PLASTERING, PAINTING, PLUMBING.

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Reviewed by Alisa on 25/11/2023

Fast response; prompt communication; understood parameters and limitations; completed job super well and quickly. Intend to hire again for a number of jobs.

PCN ELECTRICAL LTD

House Extension

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Our company offers comprehensive services including full house rewiring, extensions, handyman services, and various other building works.

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Reviewed by Martina on 25/9/2024

Christian was excellent! He finished a tiling, grouting and finishing when my previous contractor went AWOL. He has excellent attention to detail and was super tidy. I would have no hesitation in recommending and will be calling on him again should I need any more jobs completed. 5 ??

Unique Bathroom and Plumbing Ltd

House Extension

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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!

Ursache LTD

House Extension

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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

Carswells Plumbing

House Extension

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Carswells construction & plumbing has been established over 10 year for a during that period of time we have built our business on reputation, word of mouth and dedication in order to provide our customers with the best possible services in all Building works specialise in extensions all building work & bathroom fitting.

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Reviewed by P on 20/10/2024

I recently had Luke and his team widen an opening between two rooms in my property, which was a sizeable job requiring the installation of a steel beam. The work was managed efficiently, and great care was taken throughout the project. I’m very pleased with the results and would highly recommend Luke and his team for their professionalism and attention to detail.

Gurdev Lall

House Extension

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I have been an electrician since 2008, I do have my 18th edition electrical installation certificate, and I can sign off electrical work. I am a very creative electrician with many great ideas on what will look good and what will look Great.

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Reviewed by Mario on 27/2/2026

Dev was very personable and did a fantastic job. He left the place cleaner than when he started and managed to correct a number if short cuts taken with the previous hood installation. I would definitely recommend if you are looking for an electrician

Patrick O'connor

House Extension

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Hi I am based in north London and offer a wide range of services, from groundworks ie: foundations, pouring concrete, drainage, steel erection, to complete extensions, also all Demolition work, roofing work, patio and driveway work undertaken, I have never advertised for work in 37 years in london, always went straight from one job to another,but this past year has been hard, so please look at my profile pictures and contact me regarding any work big or small, I have thousands of photos going back years of work done, ps underpinning aswell, thank you pat.

Latest homeowner review

Reviewed by sofia on 21/4/2021

Patrick did a great job in brickwork (opening our kitchen window aperture), pointing and skimming. He went along our tight schedule and provided helpful advice and a fair price. I strongly commend his work. Thank you Pat!

Trademark Roofing

House Extension

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We have been in business for 15 years now everything I now my dad passed down just like his father before him I opened the business myself and we love to satisfy our customers We offer a range of services including Painting, pvc, pressure washing, gutter cleaning repair and installing, fencing installed and painted, block paving, gardening, roof installer and repair; rendering and pointing works, general maintenance on interior and exterior. If u have any questions we are happy to answer them for u so don't hesitate to get in contact

U FIT SASH WINDOWS LTD

House Extension

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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!

NSE CARPENTRY LTD

House Extension

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We are a team with over 10 years experience in the building industry, specialists in kitchen and bathroom fitting, as well as all aspects of interior finishing. Our NVQ qualified team, professionally deliver high quality projects on time. Check our instagram @nse_carpentry

Latest homeowner review

Reviewed by Grant on 19/4/2025

Still in the process of getting the job done but Alex has been reliable and honest throughout. I have every confidence that the job will be completed at the price quoted (lower than other quotes) and to an excellent standard.

Prime Renovations Ltd

House Extension

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I am builder I have been working from last 9 years in this building industry And trying to provide quality work to british standard I can do any kind of building job If you need my any help Feel free to contact me

Latest homeowner review

Reviewed by Cameron on 7/5/2026

Bianco Interior Design Ltd.

House Extension

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With experience from Italy and from U.K in painting and decorating. We try to do our best for the client, to give quality , responsibility and advice if its necessary in our jobs. We believe your home should reflect your personal taste and style.

Latest homeowner review

Reviewed by Anna on 6/6/2025

Had bathroom window sill and window repaired, excellent service, highly recommend. Came out and gave us a quote and then came to do the job within a week to high quality, well-priced and very efficient. Thank you!!

RS Contractors (UK) LTD

House Extension

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RS Contractors (UK) Ltd are a well-established, multi-trade contractor, specialising in the insurance repair, and maintenance sector. whilst also offering professional services in commercial projects, fire safety and home improvements. With our office based in Bedfordshire and our ever-growing footprint, we have the flexibility of delivering our services in London and surrounding counties. Since 2011, we have earned a strong reputation for reliability, efficiency, and excellent communication within our customer relations. Here at RSC, we pride ourselves as highly skilled professionals who are committed to meeting and exceeding customer’s expectations on every project. With the team’s training and experience, all projects follow the required Health and Safety measures and and our operatives are fully certified.

LDN Construction

House Extension

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Welcome to LDN Construction! Based in London, we specialise in transforming houses into homes, offering a wide range of construction and refurbishment services. With over 20 years of experience, we combine precision, innovation, and top-quality materials to bring your vision to life. We pride ourselves on our attention to detail and commitment to completing projects on time and within budget. Our Services Include: - Home Extensions (Rear and Side) - Loft Conversions - Roofing - Full Home Refurbishments - New Builds - Bathroom Renovations - Garden and Patio Projects - Driveways - Fencing - Cladding and Rendering - Plastering Every project is important to us, whether big or small. We offer a bespoke quality finish and are always by our customers' side, turning their houses into homes. Don't hesitate to contact us for a free visit and a free quote. We look forward to hearing from you soon!

GP DEVELOPERS LTD

House Extension

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We are family owned building company and have been established for over 10yrs Our goal is total customer satisfaction and great communication . We cover a varied range of works including but not limited to : Full house refurbishment Extensions Loft conversions Kitchens Bathrooms Steelworks Decking Patios Decorating Always have to provide photos and videos of before and after works and more than happy and actively encourage you to speak to previous clients .