The quick way to find a local House Extension specialist in Harrow
Over 10,000 rated tradespeople
are ready to help you get your job done
Over 3 million happy homeowners
have found a quality tradesperson
Over 1 million ratings
with 88,000 5* ratings in the last 12 months
Join our group of happy customers
Thousands of 5 star reviews
Read real reviews from customers about their service experiences.
Craig got in touch quickly, gave me a rough estimate over the phone and answered all my questions. Surveyor arrived on time, gave instant quote. Price was good. Michael and (another) Craig turned up to do the job on the day, time given. Good, tidy job. Can't fault anything, from start to finish!! Would recommend!
Mary
George and his team are experienced builders, replaced my front door with a custom frame/sidelights and raising the floor level in the hallway quite quickly - in fact, they were the only who came next day, gave a quote straightaway and were ready to start in just couple of days. They also had all the necessary tools and materials, were ready to buy something additional quickly on the day - if further adjustments were required to fit everything as I asked. Thanks a lot for your help, guys!
Dmitry
Highly recommend. These guys did a fantastic job of constructing our pergola and decking. Very hardworking and reliable. The job was completed in the time frame agreed and to a very high standard. We would 100% use them again.
Holly
Browse House Extension specialists
Take a look at our House Extension specialists profiles, read reviews and request quotes directly.
Michael did a great job hanging a new bedroom door. He came at short notice, was knowledgeable, friendly and cleaned up afterwards.
Tani Dauti Building Services
House Extension
I have over 25 years experience in the building service.
B S Building Services
Bartek arrived promptly explained what we needed doing took pictures Recieved a quote from him happy with everything 2 weeks later on Sat morning arrived completed work's exactly what we wanted proficient and cleaned totally when finished would 100% hire him again
Introducing C&P General Construction, a renowned general building company led by the esteemed general manager and main builder, Alex. With a stellar reputation backed by positive customer feedback, C&P General Construction excels in a wide range of construction projects, from small-scale ventures to high-end projects, including new builds, extensions, and lofts. Their expertise extends beyond standard construction to encompass high-end refurbishments, where they excel in delivering fine touches such as Italian painting and Venetian plaster. What sets C&P General Construction apart is their commitment to providing the best value for money. Their team of trustworthy builders ensures that every project is executed with utmost professionalism and precision, exceeding client expectations. Regardless of the scale or complexity of the project, C&P General Construction is dedicated to delivering exceptional results, making them the ideal choice for your construction needs.
Alex and his coworker from C&P General Construction Ltd did an exceptional job repairing and repainting my front door, 7 door frames and most of the skirting boards around my flat. They both are very friendly and are very good at being neat and paying close attention to detail. Alex offered a reasonable price and made sure they both took their time so it was done to a very high standard and to my satisfaction. I felt even more confident when Alex shared his professional advice throughout. Thank you Alex! ????
'%3e%3cpath%20fill-rule='evenodd'%20clip-rule='evenodd'%20d='M12.5%2020.392a1%201%200%2001-.54.888l-5.274%202.73a1%201%200%2001-1.435-1.109l1.494-6.588a1%201%200%2000-.306-.964l-4.723-4.254c-.65-.586-.287-1.666.585-1.74l6.105-.514a1%201%200%2000.846-.629L12.5%200v20.392z'%20fill='%23F7DB34'%20/%3e%3c/g%3e%3c/svg%3e){kind=small}
A & K Contractor Services Ltd are experienced specialists in bathroom installations and full house refurbishments. We offer a complete start-to-finish service, ensuring projects are well planned, well managed, and completed to a high standard. We understand how important trust is when choosing a tradesperson. That's why we focus on clear communication, punctuality, and keeping your home clean and tidy throughout the work. Every job is carried out with attention to detail and respect for your property. Why choose A & K Contractor Services Ltd ? Professional planning and preparation Clean, tidy, and organised working practices. High-quality finishes polite, punctual, and reliable service. Honest pricing and excellent value for money Customer satisfaction is our priority, and we take pride in delivering results that clients are happy to recommend.
We aim to be a world class Construction Company providing efficient affordable, sustainable, cost effective services of highest level of quality. We undertake all projects, big or small and specialise in major renovations including; Extensions – Loft Conversions – Restoration & Alterations Garage Conversions – Landscaping & Patios – General Building Work Renovating a property can bring a new lease of life to your home with the feeling that you live somewhere new without having moved. Whether it's a major remodel by knocking down walls and building new ones to change the entire look of your home, to simple and subtle updates and upgrades like new floors, new doors, a modern new kitchen or a stunning bathroom, using modern materials we can help you create your ideal living space.
AJW Specialists
House Extension
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.
THE ONLY CHOICE FOR YOUR HOUSE!!! We work with homeowners and their partners to solve the unique challenges of managing house improvments.
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.
Our company offers comprehensive services including full house rewiring, extensions, handyman services, and various other building works.
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 ??
Founded in 2025, Bfix has established itself as a leader in luxury construction and interior design. Like a hive of diligent bees, our team works tirelessly to turn dreams into reality, creating spaces that are not only beautiful but also built to last. We pride ourselves on our ability to deliver superior craftsmanship and exceptional service. What We Offer Free On-Site Inspection – We carry out a full technical assessment to identify damage to floors, ceilings, walls, and fixtures. Trace & Access Support – We assist in locating hidden leaks and identifying areas affected by moisture. Repair Planning – We help outline the works required for restoration, based on what insurers typically expect to see. Supportive Documentation – We provide clear, itemised findings that you can use if you choose to start an insurance claim. Referral to Insurance Claim Experts – If required, we can introduce you to regulated professionals who manage claims directly on your behalf. Why Choose Bfix? Unmatched Expertise: Over many years of experience in luxury construction. Tailored Solutions: Custom designs that cater to your specific needs. Superior Quality: Premium materials and meticulous craftsmanship. Customer Satisfaction: We prioritize your vision and ensure a seamless construction process.
PRESTIGE BUILDERS GROUP LTD
House Extension
we are a builder specialist over 15 years of experience with liability insurance .
George was prompt, courteous and professional. The decoration work was done efficiently and with attention to detail. A clean and thorough job. I would have no hesitate in recommending him and his team for similar projects.
Property DMR Services Ltd is a high end building company that specialises in refurbishing properties in and around London. All our work is insured & guaranteed. We undertake Basement Construction & Waterproofing, Extensions, Loft Conversions & Renovation plus Bespoke Joinery & Shop Fitting
Matthew and his team did an amazing job and completely transformed a tired 1st floor maisonette into a luxurious looking property. Throughout my 'mini' project Matthew remained calm and patient, even when i informed him that i preferred to have my Gas Safe Engineer to work on the Plumbing and Gas boiler. he just adjusted his quote reflect this. He also suggested 2 weekly installation payments so that I could see the improvements before paying. I will definitely use Matthew again for any future projects.
RATED PEOPLE LIMITED
House Extension
I have been in rhe building trade for over 45 years as carpenter/joiner, foreman carpenter and site manager until i branch out in building extensions/ loft and garage conversions, refurbs ect. Since 1986.
Robert and his team were excellent. Work done to a great standard
High quality of offered services, flexible and reliable builders just for you. We always meet the deadlines set with customers and make sure they are proud of work we've done. "Great prices and fast, quality work" - these words describe us accurately.
I cannot speak highly enough of the MBS team. They were everything one would expect from a service provider. They were punctual, polite, they knew what they were doing, the quality of workmanship was high, they were honest and their prices are fair. Most of all -they were reliable and clearly had our best interests at heart. I wouldn't hesitate to recommend them to any other prospective customers. Excellent!
Botnari Construction
House Extension
Botnari Construction Every project is unique to every homeowner with small details having significant importance. What matters to our clients is what matters to us and these are the problems that we like to solve. We specialise in all Construction works with many years being in the industry, making sure we deliver a fast, efficient and well-organised project at its best.
Memaar Construction
House Extension
SAS Plastering
House Extension
Our team works in Plastering, Rendering, K-rend, bricklaying, panting and decorating. Our team has been in the construction industry for longer than 10 years, our finished product is always doe to the best of our abilities and it is always guaranteed.
We are an electrical contractors with over 20 years of experience. NICEIC registration. Always delivering friendly and exceptional service. Public liability insurance for your peace of mind.
Great price, prompt and professional.
'%20rx='20'%20/%3e%3cg%20fill='%23FFF'%3e%3cpath%20d='M29.376%2016.914c-.555%200-1.006.454-1.006%201.013v37.416c0%20.578.472%201.014%201.097%201.014h34.109a1.007%201.007%200%200%200%20.972-.83%201.012%201.012%200%200%200-.161-.76l-6.446-9.416c-.375-.548-.567-1.085-.586-1.642-.034-.977.516-1.952%201.402-2.483%204.8-2.878%205.808-7.575%205.808-11.009%200-7.335-5.925-13.303-13.207-13.303H29.376ZM63.594%2059.75H29.467c-2.505%200-4.467-1.936-4.467-4.408V17.927c0-2.43%201.963-4.408%204.376-4.408h21.982c9.14%200%2016.577%207.49%2016.577%2016.698%200%205.879-2.46%2010.687-6.944%2013.607l6.17%209.017c1.37%202.002.868%204.752-1.12%206.132a4.336%204.336%200%200%201-2.44.778h-.007Z'%20/%3e%3cpath%20d='M38.767%2027.797c0-.749.603-1.357%201.347-1.357h6.427c3.979%200%206.426%201.72%206.426%205.099v.123c0%203.132-2.325%205.098-6.365%205.098h-3.848l-3.985%203.998V36.76h-.002v-8.963'%20/%3e%3c/g%3e%3cpath%20fill='%23FFF'%20fill-rule='nonzero'%20d='M18.176%2069.2h2.156v3.878h3.976V69.2h2.156V79h-2.156v-3.934h-3.976V79h-2.156v-9.8Zm16.428%207.98c.43%200%20.826-.08%201.19-.238a2.72%202.72%200%200%200%20.931-.658c.257-.28.457-.604.602-.973a3.21%203.21%200%200%200%20.217-1.183V74.1c0-.42-.072-.817-.217-1.19-.145-.373-.35-.7-.616-.98a2.96%202.96%200%200%200-.945-.665%202.873%202.873%200%200%200-1.19-.245c-.439%200-.838.08-1.197.238-.36.159-.667.378-.924.658s-.457.604-.602.973a3.21%203.21%200%200%200-.217%201.183v.028c0%20.42.072.817.217%201.19a2.959%202.959%200%200%200%201.554%201.645c.36.163.758.245%201.197.245Zm-.028%201.988a5.343%205.343%200%200%201-2.086-.399%205.187%205.187%200%200%201-1.645-1.078%204.823%204.823%200%200%201-1.078-1.596%205.029%205.029%200%200%201-.385-1.967V74.1c0-.7.13-1.356.392-1.967a5.075%205.075%200%200%201%201.085-1.61%205.05%205.05%200%200%201%201.652-1.092%205.395%205.395%200%200%201%202.093-.399c.756%200%201.451.133%202.086.399a5.187%205.187%200%200%201%201.645%201.078c.462.453.821.985%201.078%201.596.257.611.385%201.267.385%201.967v.028c0%20.7-.13%201.356-.392%201.967a5.075%205.075%200%200%201-1.085%201.61%205.05%205.05%200%200%201-1.652%201.092%205.395%205.395%200%200%201-2.093.399Zm8.14-9.968h2.324l2.576%204.144%202.576-4.144h2.324V79h-2.142v-6.398l-2.758%204.186h-.056l-2.73-4.144V79h-2.114v-9.8Zm13.152%200h7.392v1.918h-5.25v1.988h4.62v1.918h-4.62v2.058h5.32V79h-7.462v-9.8Zm13.866%209.94a6.49%206.49%200%200%201-2.198-.385%205.817%205.817%200%200%201-1.96-1.183l1.274-1.526c.448.364.908.653%201.379.868.471.215.987.322%201.547.322.448%200%20.796-.082%201.043-.245a.771.771%200%200%200%20.371-.679v-.028a.85.85%200%200%200-.077-.371.778.778%200%200%200-.294-.301%203.079%203.079%200%200%200-.602-.28c-.257-.093-.59-.191-1.001-.294a12.201%2012.201%200%200%201-1.344-.406%203.787%203.787%200%200%201-1.022-.553%202.237%202.237%200%200%201-.651-.819c-.154-.327-.231-.733-.231-1.218v-.028c0-.448.084-.852.252-1.211.168-.36.404-.67.707-.931a3.183%203.183%200%200%201%201.085-.602c.42-.14.882-.21%201.386-.21a5.86%205.86%200%200%201%201.981.322%205.743%205.743%200%200%201%201.659.924l-1.12%201.624a7.1%207.1%200%200%200-1.288-.707%203.292%203.292%200%200%200-1.26-.259c-.42%200-.735.082-.945.245-.21.163-.315.366-.315.609v.028c0%20.159.03.296.091.413.06.117.17.222.329.315s.376.182.651.266c.275.084.623.182%201.043.294.495.13.936.278%201.323.441.387.163.714.36.98.588.266.229.467.497.602.805.135.308.203.677.203%201.106v.028c0%20.485-.089.917-.266%201.295a2.66%202.66%200%200%201-.742.952%203.353%203.353%200%200%201-1.134.588%204.924%204.924%200%200%201-1.456.203Z'%20/%3e%3c/g%3e%3c/svg%3e)
Get our app for homeowners
- Send messages and get notifications from tradespeople
- Add photos to get more accurate quotes
- View tradespeople's profiles