Loft Conversion Companies in Kings Cross

Name: Loft Conversion Company
Brand: MyBuilder
SKU: loft-conversion-company
Rating: 4.4 (12 reviews)

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Some of our top rated loft conversion companies in Kings Cross

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East London Lofts express LTD
Rating: 5 out of 5
Loft Conversion Company in Kings Cross
Fast, efficient, and honest, Mariolofts has become a reputable and well-known service provider. Our team is up for every job, managing projects with the skill and experience our clients have come to expect. We want our customers to be satisfied with our work, which is why we provide open communication channels throughout the duration of each project.
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Latest review:
Loft Conversion- 18 May 2020
Thank you for an excellent job - quick and efficient throughout the whole process. Keep up the high standard. Mario ensured that the job was completed to plan and on time of schedule. I will have no hesitation in employing Mario London Lofts Ltd for future projects. Fully recommended!!!!
Construction Bushi Ltd
Rating: 5 out of 5
Loft Conversion Company in Kings Cross
Hi We are a construction company working all over London We are part of the federation of master builders The work we do is, -Loft conversion -Extension -Refurbishe -Decorating -paving -garden
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Latest review:
Extensions- 25 Jan 2022
About halfway through the project now and I have only positive things to say about these guys. They are always on time and hard working, great communicators and pleasant to deal with. The work has been top notch and their quotations have been very fair. I have great confidence things will turn out exceeding my expectations. Will update upon completion.
CCM CAPITAL CONSTRUCTION LIMITED
Rating: 4.8 out of 5
Loft Conversion Company in Kings Cross
All construction work
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Latest review:
Bathroom Fitting- 30 Nov 2025
Mohsen and his team are very professional workers. They communicated clearly with me during the quoting process and were very helpful. They replaced my shower tray and shower screen beautifully and exceeded my expectations. Highly recommend their work!
Sheila Build & Design Ltd
Rating: 4 out of 5
Loft Conversion Company in Kings Cross
SBD Contractors was established in 2022, with roots firmly anchored in the vibrant city Central London. We provide comprehensive services that extend across all areas of Greater London. Our forte lies in orchestrating a symphony of simplicity, adeptly navigating the intricacies of acquiring, planning, designing, building, and harmoniously managing your properties. We specialise in transforming complexity into effortlessly straightforward processes, ensuring a uniquely smooth and tailored experience for you. Founded with the vision of offering clients a lifelong point of contact, we guarantee a simple journey and all the associated benefits throughout your property development and real estate experience. Our solutions redefine industry standards in property development, with a primary goal of simplifying the process for our clients. We ensure a hassle-free experience that saves you both time and money.
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Latest review:
Painting & Decorating- 9 Aug 2024
Sheila was very professional and she recommended a professional floor specialist part of her team who did a wonderful job. Will definitely use her services in the future!
JED BUILDERS LTD
Rating: 5 out of 5
Loft Conversion Company in Kings Cross
A limited company established in 2016. More that 8 years experience in construction business. We undertake all building works, big or small, managing and looking after project so the client can have the best results possible.
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Latest review:
Kitchen Fitting- 14 Dec 2018
Very lovely and professional and clean. Very prompt/punctual and worked efficiently , will be using them again to do more work in my property. Definitely with recommend them to anyone ! 10/10 from me ! Good service delivery
APS Carpentry
Rating: 5 out of 5
Loft Conversion Company in Kings Cross
I’m Adam a self employed carpenter & floor layer with 15 years experience working in the trade.I’m a fully qualified 1st & 2nd Fix carpenter.I’ve completed my NVQ level 1 & 2 in carpentery and joinery,aswell as an apprenticeship.Majority of my experience comes from loft conversions,extensions,refurbs & maintenance,with a few years site experience.I enjoy my job and take pride in my attention to detail.I’m always happy to give guidance and put across my experience & work a lot off reference
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Latest review:
Came out on short notice . Job completed in a couple of hours
Patrick JR
Rating: 5 out of 5
Loft Conversion Company in Kings Cross
Experienced Tradesman who enjoys providing a friendly and reliable service to customers. No job too small from Demolition and groundwork’s to first fix of structures to second fix finishing jobs such as hanging TVs and mirrors. Please get in touch for a no obligation quote and estimated timescale.
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Latest review:
Handyman- 4 Aug 2021
Great during the pandemic, able to change appointment due to isolation. Job completed in a timely manner and work space left clean. Job completed a month ago and still perfect. Thanks
Swift Building Masters
Rating: 4.9 out of 5
Loft Conversion Company in Kings Cross
General Builder of over 40 years Experience. Carpentry & Joinery Background. I have worked on large and small Projects, Repair, Refurbishment, Extensions, Loft conversions and New-builds. Recently become a member of Federation of Master Builders. ALL WORK QUALITY ASSURED
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Latest review:
Kitchen Fitting- 28 Jan 2019
In short, Les provided a super-efficient and spot-on service. We found him to be straightforward and his rates were very good. We will, no doubt, use Les for some larger projects which we will have scheduled for later this year.
Graal Structural Engineering Ltd
Rating: 5 out of 5
Loft Conversion Company in Kings Cross
We offer Structural Desing and Calculations for New Build, Extensions, Loft Conversions, etc. Detailed drawings and calculations for Building Control. We offer one-stop-shop services including, planning applications, architectural & structural design, cost estimations, project management and construction works.
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HNL Construction Limited
Rating: 5 out of 5
Loft Conversion Company in Kings Cross
Home improvement company. Experience since 2005.Our job is our passion.Let us make Your dream project.Every job its important to us from small to big. We do: -kitchen -bathroom -loft conversion -extension -refurbischments -electric -plumbing -gardening …and many more
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Latest review:
Conversions - General- 23 Mar 2026
Pawel and his team are great - got them in for a few things now, from damp repair, knocking through an internal brick wall, moving a fuse box, installing a wood floor. Always good workmanship, easy comms and decent value! Have recommended to a few friends who are equally pleased.
Builders Are Us Ltd
Rating: 5 out of 5
Loft Conversion Company in Kings Cross
With over 10 years’ experience in Loft Conversions, Extensions and Refurbishments, BuildersRUs offer the complete home service. Our dedicated team will help you transform your home, managing all aspects of the process including design, planning, regulations and completed build to the highest specifications. Let us realise your home’s potential, creating your ideal master bedroom, a kid’s gaming room, a quiet home office, or that dream kitchen. Call us today for great work at great prices.
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Latest review:
Bili did a amazing job. He and he's team has been extremely helpful and very professional. Bili listened, made good suggestions, clean and always on time. They finished the job perfectly and on schedule. It was pleasure working with Bili and his team and I would recommend them without hesitation.
Cappy Construction Ltd
Rating: 5 out of 5
Loft Conversion Company in Kings Cross
Cappy Construction are specialists in the construction and renovation of residential and commercial properties. We pride ourselves on delivering outstanding quality and design for leading architects and private clients across the Capital, Hertfordshire, Buckinghamshire and Bedfordshire.
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Latest review:
Michael and his team provided the highest of quality service. From the site staff to the management staff everyone was helpful and worked very hard, everything ran smoothly with great communication and the result was excellent. The work undertaken was completed to an exemplary standard, I have recommended Cappy Construction to many other people looking to get work done.
S & S Builders
Rating: 5 out of 5
Loft Conversion Company in Kings Cross
Hi my name is Stephen and I have 30 years building experience specialising in extensions and loft conversions I do 1 job at a time and I am on site every day. I have extensive knowledge of structural engineering I also carry building insurance .and i am a member of the National federation of builders.
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Latest review:
Loft Conversion- 9 Sep 2018
My brother and I met with many builders when looking to complete our project, a full renovation of our house and loft conversion. When we met with Stephen it was clear from the start that he has huge experience in the industry and we both felt an instance confidence in him, Stephen is a quiet man that lets the quality of his work do the talking. Stephen and his team carried out a complete renovation of the property including stripping out, structural steel installation, new roof, fitting of windows & doors, plastering, decorating, electrical rewiring, plumbing & heating, all carried out with no fuss and to a very high standard. We needed a builder that we could trust with our project as we both work full time and could not be on site every day to supervise the work. Stephen took charge of the project and his communication was excellent, always making a phone call to check any queries and to let us know how things were progressing. He was also happy to suggest changes and improvements to our plans with great vision for what would improve the end result. Minor mistakes were made during the project, but Stephen was always honest and takes a real pride in the work that carries his name, so things were always put right and with minimum fuss. Overall we feel very lucky to have found such an honest, hard working and reliable builder, we would not hesitate to recommend Stephen and if we ever carry out another project, he will always be the first man we would go to for a quote.
Fast5 Limited
Rating: 5 out of 5
Loft Conversion Company in Kings Cross
Are You Tired of Dealing with Builders? We Have the Solution! ✓ Honest and Transparent Pricing ✓ On-Time Project Completion ✓ One-Stop Shop for All Your Building Needs ✓ Residential and Commercial Construction Expert ✓ Health and Safety Compliant ✓ Regulatory Compliant ✓ Insured Don't let construction headaches ruin your home renovation dreams! Contact us today and experience the difference.
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Latest review:
I recently had the pleasure of working with Fast5 for the refurbishment and renovation of my house in London, and I couldn't be happier with the results. The team displayed a high level of professionalism, expertise, and attention to detail throughout the entire project. From the initial design phase to the physical construction, they demonstrated their commitment to customer satisfaction. The comprehensive range of services offered by them included architecture design, interior design, and physical construction, ensured that every aspect of my home renovation was handled with precision and completed to the highest standards. The team's expertise and experience were evident in their work.
LV Design & Build LTD
Rating: 5 out of 5
Loft Conversion Company in Kings Cross
Longview Design & Build specialises in high-end architectural design in London. Our team take pleasure in understanding your vision and then guide you towards completion. We act as a one-stop-shop by providing you with all the tools you need to deliver success. Whether you’re looking to expand or refine your home with a loft conversion, rear or side extension, basement excavation, cellar conversion or a top to bottom refurbishment, we are the actual Design & Build construction company you are looking for. We saw a gap in the market – all construction companies out there were founded from builders – and we thought we could bring our experience as Project Managers, Architects and Structural Engineers in construction. As building designers we thought we could bring in our passion, attention to details, knowledge in new high quality materials and cutting edge technology to achieve high end designs for affordable prices. LongView Renovations specialises in loft conversions, extensions, basements, renovations and new build homes in and around London. Through our experience in both construction and design we are able to better understand our client’s vision & needs and solve any issues along the way even for the more complicated projects
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Latest review:
Have used LV on two occasions and have also recommended them to my neighbours. Great communication and professional throughout the process
Future Shapes
Rating: 4.9 out of 5
Loft Conversion Company in Kings Cross
We are a company who believe in building an outstanding relationship with each and every one of our clients. We pride ourselves on achieving impeccable standards of work, earning trust with our clients through our friendly, reliable, thorough and clean work. We now have an exceptional reputation for delivering fantastic results and over-delivering on expectations with our clients.
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Latest review:
Restoration & Refurbishment- 31 Aug 2020
It was a pleasure dealing with Peter and his team from start to finish and we couldn’t be happier with the work that they did. I was impressed with Peter’s previous work and we developed a good rapport from the first meeting and I felt that I could trust him with the work. He was clear about the detail of the work that needed doing upfront and his quote was itemised to reflect what each element would cost. The work was done on time and of a high quality and Peter was responsive at all times to any questions or concerns we had. He also made great suggestions of how we could do things better and was open to our ideas and realising our dream. His team were punctual, friendly and took care of the house ensuring the work that they did was of a high standard at all times and attention to detail which really has made a difference now that the project is completed. I wouldn’t hesitate to recommend Future shapes to anyone and would certainly use them again.

4.4

Top rated Loft Conversion Companies

Our Loft Conversion Companies in Kings Cross, are rated 4.4 out of 5 based on 12 reviews from customers like you.

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What services are offered by loft conversion companies in Kings Cross?

Converting a loft often entails many jobs - some of which you likely haven’t even considered! Fortunately, a professional loft conversion company in Kings Cross will be able to handle multiple services, ensuring your transformed loft is fit for purpose.

Some of the services loft conversion companies can provide include:

Full loft conversions: Complete design and build projects when structural alterations are needed
Dormer loft conversions: Add extra headroom and floor space with a dormer extension
Velux or rooflight conversions: Ideal for lofts with good existing height; minimal structural change required
Hip-to-gable conversions: Extend the sloped roof to create more usable space
Mansard conversions: A major structural change offering maximum space.
Loft storage conversions: Add flooring, lighting, and insulation for clean, usable storage
Skylight or roof window fitting: Install natural light solutions like Velux windows
Staircase installation: Design and build bespoke stair access to your new loft
Insulation, heating, and ventilation upgrades: Ensure comfort and compliance with energy standards
Design and planning services: Architectural drawings, planning permission, and building regulation approval

Post your job to MyBuilder and you'll be matched with loft conversion companies in Kings Cross who are interested and available to help. And with the reviews of past customers and the freedom to compare the quotes of similar tradespeople, all in the same place, the ball’s in your court.

Average costs of loft conversion companies in Kings Cross

Loft conversions tend to be charged on a project basis, rather than by the hour, as they often involve weeks or even months of work.

The cost of your loft conversion depends on a few things, including the style of loft conversion and materials you choose and the size of your property.

That being said, here are average prices for common types of conversion work:

Full loft conversions: £45,000–£70,000+
Dormer loft conversions: £55,000–£85,000+
Velux or rooflight conversions: £25,000–£45,000
Hip-to-gable conversions: £50,000–£80,000+
Mansard conversions: £70,000–£100,000+
Loft storage conversions: £10,000–£20,000
Roof window fitting or skylight installation costs: £1,000–£2,500 per window
Staircase installation costs: £2,000–£5,000
Insulation, heating, and ventilation upgrades: £2,000–£6,000
Design and planning services: £1,500–£4,000

Take a look at our guide to loft conversion costs to get a more detailed breakdown of the different options available when using a Kings Cross loft conversion company.

Find a loft conversion company in Kings Cross with MyBuilder

When you’re planning major work like a loft conversion, you’ll want to find the right tradesperson for the job. The great news is, MyBuilder has already done all the time-consuming work for you.

All you need to do is post your job on MyBuilder, completely for free, and we’ll share it with loft conversion companies near you in and around Kings Cross.

Step 1: Post your job on MyBuilder

Provide a detailed description of your loft conversion project, including the type of conversion you want, any structural changes, preferred materials, and your ideal timeline. Once posted, local loft conversion companies in Kings Cross can view your job and register their interest.

Step 2: Review and compare Kings Cross loft conversion companies

Browse the profiles of interested loft conversion companies. On MyBuilder, you can view photos of previous projects alongside customer reviews, compare quotes, and see the types of conversions they specialise in.

Step 3: Contact and discuss your project

Once you’ve reviewed local Kings Cross loft conversion companies, you can reach out to those that interest you to ask questions, clarify details, and request more specific quotes. At this stage, be sure to discuss vital aspects like planning permission, design options, and estimated timelines to ensure the company meets your requirements.

Step 4: Hire the right Kings Cross loft conversion company

Once you’re satisfied with their experience, quotes, and approach, you can confirm your hire and start planning your loft conversion.

You can also take a look at our loft conversion specialist hiring guide to help inform your choice. All tradespeople undergo checks at registration - such as verifying ID documents, company details, and certifications for regulated jobs and doing skill assessments - allowing you to hire with confidence.

Questions to ask local loft conversion companies in Kings Cross

Choosing the right loft conversion company for your job requires finding someone who understands your home and your goals.

Find out which company can share your vision by asking the following questions:

What experience do you have with loft conversions in Kings Cross?

A local loft conversion company in Kings Cross will know the types of properties and building styles common in your area, as well as the planning and building regulations that apply. Ask about similar projects they’ve completed locally.

Are you insured, and do you offer a warranty for your work?

Insurance protects your home during the loft conversion process, while a warranty shows the company’s confidence in the quality and durability of their work.

How do you handle planning permission and building regulations?

Established loft conversion companies in Kings Cross should understand local planning rules and building regulations. Ask how they’ll manage permissions, inspections, and compliance to avoid delays or legal issues.

What is included in your quote?

Ensure the quote covers all essential aspects of the loft conversion: structural work, windows or skylights, staircases, insulation, labour, and any additional fees. Understanding this upfront prevents unexpected costs later.

Do you manage the project from start to finish?

Some Kings Cross loft conversion companies offer full project management, coordinating architects, builders, and tradespeople. Others may only handle part of the conversion. Clarifying this early on helps you understand what support to expect.

FAQ: Common questions about loft conversions in Kings Cross

How long does a loft conversion take?

Typically, a loft conversion can take between 6 and 12 weeks, depending on complexity, planning permissions, and any structural work required. Be sure to discuss the timeline with any potential loft conversion companies in Kings Cross before agreeing to start the work.

Do I need planning permission for a loft conversion in Kings Cross?

Many loft conversions fall under permitted development, but some require planning permission, especially if you’re adding a dormer, extending the roof, or living in a listed building. A professional Kings Cross loft conversion company can advise and handle permissions for you.

Will a loft conversion affect my home insurance?

Yes, you’ll need to update your home insurance to cover the conversion. Inform your provider about structural changes, additional rooms, and any changes to utilities or heating systems.

Can I stay in my home during the loft conversion?

Many loft conversions allow you to remain in your home, though noise and dust are inevitable. Some Kings Cross loft conversion companies offer strategies to minimise disruption, but in complex projects, temporary relocation may be advisable.