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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
Unlocking the unused potential in your attic is one of the smartest ways to expand your living space without sacrificing your garden or enduring the hassle of moving home. Whether you envision a light-filled master bedroom with an en-suite, a quiet home office, or a playroom for the kids, a professional loft conversion specialist can seamlessly build your vision. Rated People connects you with thousands of trusted, local building and design pros across the UK. Post your job for free today to get quotes from up to three local specialists.
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What can a local loft conversion specialist help me with?
Expanding your home vertically is an incredible way to gain space, but the structural style you choose will dictate both the internal layout and the exterior appearance of your property. Rather than a one-size-fits-all approach, a local loft conversion specialist can help you select from the four primary architectural styles:
- Velux / roof light conversion: The least invasive option, this style keeps your existing roofline completely intact. Your specialist will install flush roof windows, reinforce the underlying floor joists, and add a permanent staircase, making it perfect for properties where ample head height already exists.
- Dormer loft conversion: This is the most common extension method across the UK. It involves building a flat-roofed, box-like structure out from the sloping roof slope, creating a vertical rear wall that maximizes usable internal floor space and provides generous standing headroom.
- Hip-to-gable conversion: Standard on semi-detached houses or detached bungalows, this style straightens an inwardly slanted side roof into a vertical brick wall (a gable). This structural shift drastically increases the internal volume of your attic space, creating plenty of room for an extra bedroom and an en-suite.
- Mansard loft conversion: The most premium option, a mansard conversion essentially creates an entire new storey by flattening the top of the roof and sloping the outer walls inward at a steep 72-degree angle. It offers maximum design flexibility but requires major structural remodeling.
A local loft specialist understands your regional building styles and property types, ensuring your roof receives the precise reinforcement and structural changes it needs.
Post a job today to find a reliable loft conversion specialist in your local area.
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How much does a loft conversion cost on average in the UK?
Budgeting for a vertical home expansion requires a realistic understanding of current construction, material, and structural engineering fees across the UK. On average, most homeowners can anticipate an investment ranging from £25,000 to £75,000+.
- Velux roof light styles: These are the most budget-friendly, typically averaging between £25,000 and £33,000 as they require minimal alterations to your roof structure.
- Dormer extensions: For a classic rear dormer setup, prices generally scale from £45,000 to £65,000 due to the added labor and materials needed to build the new vertical walls.
- Hip-to-gable and Mansard builds: Because these styles involve altering primary external brickwork and complex roofing lines, expect costs to land between £50,000 and £75,000+.
Other essential variables that will influence your final estimate include professional fees for architectural design drawings, structural calculations from a qualified engineer, scaffolding hire, and internal finishes like plumbing an en-suite.
To receive a precise price tailored to your property's layout, post a job today to request free quotes from local loft conversion pros.
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Do I need formal planning permission to convert my loft space?
One of the biggest advantages of a loft conversion compared to a traditional ground-floor extension is that many projects fall neatly under Permitted Development (PD) rights. This means you can proceed without a lengthy local authority planning application, provided your design meets specific national criteria, such as not exceeding a volume allowance of 40 cubic metres for terraced houses or 50 cubic metres for detached and semi-detached homes.
However, your Permitted Development rights do not apply if your property is a listed building, sits within a designated conservation area, or if you plan to extend the roof height beyond the existing ridge line or alter the front elevation facing a highway. Even if your project qualifies for PD, it is highly recommended to have your builder apply for a Lawful Development Certificate to provide official proof of compliance when you sell your home in the future.
Other loft conversion FAQ's
Will my loft conversion need to pass UK Building Regulations?
Yes, all residential loft conversions must strictly comply with UK Building Regulations to legally guarantee structural safety and fire stability. A specialist will install heavy steel RSJs to safely support the weight of the new floor, as standard ceiling joists are not strong enough on their own. Inspectors will also check critical safety features, including proper thermal insulation, a mains-powered smoke alarm system, and a legally compliant, fire-resistant staircase escape route.
How long does a typical loft conversion take to build from start to finish?
A standard rooflight or dormer loft conversion usually takes between 4 to 6 weeks of active on-site construction to complete. The initial 2 to 3 weeks are structural and handled externally via scaffolding to minimise household disruption, while the remaining weeks focus on internal breakout, plumbing, electricals, and plastering. More complex projects, such as hip-to-gabled or full mansard installations, can extend the total build timeline to 8 to 10 weeks.
What structural factors will a specialist check before providing a quote?
Before drafting a quote, a specialist will conduct a physical survey to ensure your attic has a minimum usable head height of 2.2 metres from the bottom of the ridge timber to the top of the ceiling joists. They will also evaluate whether your home has a traditional cut roof with open rafters or a post-1970s fink trussed roof with W-shaped timber supports. While trussed roofs are completely convertible, they require more complex structural steel framing to replace the timber web safely, which impacts overall material and labor fees.
Whether you need a simple roof light upgrade or a major structural transformation, speak to a specialist today to receive a free loft conversion quote.
Damian Adam Drewiecki
Loft Conversion
Hi I am Damian, BSc (Hons) Dip Arch RIBA, director and founder of ABOX. We do specialise in rear extensions, loft conversions and new build for small scale developers and private clientele. We have succeeded in delivering numerous residential projects in 2020 and are continuously improving on delivering high-quality workmanship.
Specialists in all aspects of renovation and refurbishment of residential and commercial properties .A well established reliable and professional family business with over 25 years of experience in the trade. We provide our customers a friendly and professional building service with helpful advice . Based in Hindley Green we provide a wide range of services throughout the North West from a simple maintenance job to fitting kitchens and bathrooms , conservatories and extensions.
Very professional job. Design excellent for new kitchen. Very pleased and would highly recommend this company. MJL Joinery
Lynton Industry Ltd
Loft Conversion
Team of highly skilled and experienced landscapers and builders with a passion for design and producing high quality work.
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All Property work undertaken. No job to small. Over 30 years experience. Give us a call or email for any advice.
Very pleased. Provided reasonable and prompt quote. Fully assembled gazebo from kit form (ordered online) including shingles roof. Very amenable and helpful in making adjustments where necessary for uneven patio and in final positioning of gazebo. Worked professionally and consistently. Could not fault.
Budei Iurie
Loft Conversion
Refresh your Home ! General construction, refurbishment .......
jarad London Construction Company have partnered with homeowners, designers and architects to deliver unrivalled construction, renovation and refurbishment services across London and the Home Counties.
job is done very quickly.
Derrick Green Building services are a small company. Highly skilled in new builds, extensions, loft conversions and renovations. We pride ourselves with the quality of our workmanship and the speed we carry out our contracts. We have many satisfied customers. Please see our ratings. We also carry full public and employers liability insurance.
RSJ instillation & other building work. Derrick is a highly knowledgeable & professional builder, he went over and above expectations when removing a load bearing wall to create a kitchen diner in our house along with removing an outdoor toilet. I’d recommend him in a heart beat & will be using his services in the future for other work.
Prime Build – We Build It Like It’s Our Own At Prime Build, we’re all about quality work, honest communication, and bringing your ideas to life. Whether you’re building your dream home, giving your place a much-needed update, or taking on a commercial project, we’ve got your back from start to finish. We’re a team of experienced builders who take pride in doing things right—no cutting corners, no surprise costs, just solid work and great results. What We Do: - Renovations & extensions - Custom builds - Kitchens and bathrooms - Groundworks - Bricklaying - Carpentry - Plastering - Commercial projects - Project management - Property development - We cover all aspects of the building trade Why Work With Us? - We’re licensed, insured, and easy to deal with - Clear quotes, no hidden fees - We show up, keep our word, and stick to timelines - Friendly team that treats your project like our own - Quality materials + skilled craftsmanship = lasting results At the end of the day, we love what we do—and we think it shows in every project we take on. If you’re ready to build something great, get in touch with us and let’s make it happen.
Hi Danny and co did a great job fixing my fire doors. Quick efficient and good workmanship. Will definitely use again infact I am
Oxford Driveways & Roofing Ltd
Loft Conversion
At Oxford Driveways And Roofing Ltd we take great pride in taking care of your property needs. By choosing us to handle your property refurbishment project, you are guaranteed a service of the highest quality. Whether you want paving or roofing services, you can rely on us to get the job done. To find out more, talk to a member of our team today. Oxford Driveways And Roofing Ltd have a team of highly skilled workers that are fully trained and have many years of experience. Previous clients have complimented us on our care and attention to detail. They also mention our positive attitude to cleaning the site properly once the work has finished they refer us to friends and family. Oxford Driveways And Roofing Ltd is your roofing, paving, tarmac, resin, flat roofing, guttering, painting and decorating and landscaping services provider. We only use quality materials well-known manufacturers for years of good services, so why not improve your property with us? Trusted and Reliable Driveway and Roofing Contractors covering Oxford, Abingdon, Bicester, Banbury, Witney, Wheatley and all the surrounding areas.
A full service firm. We are able to tailor our offering to suit your demands from full service project management to small scale one off projects
Although a small scale job, Patrick was quick to respond to my post and very kindly talked me through a few options, which was very useful and much appreciated. Great that he was able to carry out the work so soon even with my tight timeline. Very satisfied with the result and price within my budget. Thank you, Patrick!
RSP A1 CONSTRUCTION LIMITED
Loft Conversion
Hi I'm Lovejeet Singh (Lucky), the managing director of RSP A1 CONSTRUCTION I now have 17 years of experience in this trade. We provide a full building service. Loft conversion, Extension, Full Refurbishment and many more. We are a team with intelligent, physically strong, hardworking, and professional tradesmen who give 100% all the time. We are always on time at work and finish within time scale. WE WILL ACHIEVE YOUR VISION and most importantly NO SHORT CUTS
Trend Build Construction is a building company covering all aspects of construction and landscaping. With qualified and experienced builders, they pride themselves on offering professional services that are convenient to customers and price competitive.
Excellent job done, friendly people. They took my project like their's. No issues from start to finish. I highly recommend them. Thank you to Alan, TEodor and Daniel.
Rated People
Loft Conversion
With 20 years of experience, we are proud to offer the very best Building Services. Most of our work comes from recommendation.
Kris from KPT Building was excellent. He was very prompt and worked quickly and neatly. He and a colleague took out our shower cubicle and fitted a new shower tray, replumbed the toilet and cleared a blocked pipe in the loft. It took less than 8 hours! He managed to salvage the old shower cubicle and refitted it perfectly. He was very efficient and we would highly recommend him.
we are kitchen & bathroom fitters we also do loft and garage conversions to a high standard
An excellent job carried out efficiently. Very pleased with the result. Thank you.
Sole Trader in 2008, now become Limited Company!(summer 2016). Starting as a Horticulturalist, now we are undertaking Landscaping, garden contracts and al aspects of building works. Any aspect of your Property or Garden we can undertake! FULLY INSURED and carried out by experts there is no job big or small we cannot do. (Bigger works and at your request we can amend our insurance details to suit your project requirements as well as reassuring you!) We have licensed and registered utility services (New to 2018!) We can't wait to do Great things together....
I am very happy with all the work that has been done so far. I have entered contract for regular maintenance with the company. Mr Scot is very professional and courteous and one gets more then one pays for.
Yalcin Nurla builders
Loft Conversion
Over 20 years experience in refurbishent houses
We are a reliable construction company located in London, offering a wide range of construction work, including house refurbishment, loft conversion, extension, carpentry, plastering, tiling and much more. We deliver our promise to make our clients happy
Great builder. Makes everything look easy and a real hard worker. Very happy with the work undertaken. Quick work done to a fantastic standard. Finally found a builder who is as good at the start as at the end. Really good job done. I've already asked him to quote for another job!
We are a family run joinery and building company based in Grimsby covering all aspects of all trades. Here at Linvex Ltd we pride ourselves on our hard earnt reputation for turning out top quality workmanship on time and on budget. We have a team of time served tradesmen with over 90 years combined experience. Our team are friendly, courteous and take pride in every job we undertake, our aim is to leave every customer 100% satisfied with as little disruption as possible to your home or business.
Very reliable, did an excellent job. If like me you don't know any builders I would recommend ringing Dean
PADDICK ENGINEERING LIMITED
Loft Conversion
Established in 1981, Paddick Engineering is a family run business with over 85 years of combined experience in Architectural, Civil and Structural engineering design across Yorkshire. We help homeowners, builders, and developers navigate structural and planning challenges, from removing load bearing walls to full home extensions design and new builds. LABC Partnership Award Winners (2015) Structural Calculations & Design Architectural Drawings (2D & 3D) Planning & Building Regulation Applications Home Extensions, Loft & Garage Conversions New Builds, Layout Changes & Interior Design Domestic, Commercial & Industrial Projects We offer clear advice, quick turnaround times, and handle council submissions on your behalf, making your project as smooth as possible from start to finish. Friendly, no obligation advice Visit our website to see our gallery and services
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