LCCL Construction Reviews 103

TrustScore 4.5 out of 5

4.5

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Rated 5 out of 5 stars

I highly recommend LCCL Construction. They completed our loft conversion to a very high standard, and the quality of their work throughout was excellent. The team was professional, reliable, and compl... See more

Company replied

Rated 5 out of 5 stars

I couldn't be happier with my loft conversion and extension done by LCCL Building Construction. Real craftsmanship, professional management of the entire build from start to finish, seamless integrat... See more

Company replied

Rated 3 out of 5 stars

I tried to book a consultation call through LCCL Construction’s website for our renovation project, but their booking system repeatedly failed after multiple attempts. I then called their office se... See more

Company replied

Rated 5 out of 5 stars

We had LCCL do the design stages and build of our kitchen extension. The design was efficient even though we made some minor changes. The build ran like clockwork everyday the guys were here all day w... See more

Company details

  1. Construction Company
  2. Building Firm
  3. Custom Home Builder
  4. General Contractor

Written by the company

LCCL Construction is an award-winning design and build company based in Finchley, London N3, specialising in loft conversions, house extensions, home renovations, new builds and architectural design services across London and Hertfordshire. Over 20 years experience. LABC Award Winners 2024 for Best Residential Extension London. 200+ verified reviews rated 4.7/5. LABC Registered Partners and members of the National Federation of Builders. House extensions: We design and build all types of house extensions including rear extensions, side return extensions, kitchen extensions, wraparound extensions, double storey extensions and ground floor extensions across London and Hertfordshire. Loft conversions: We design and build all types of loft conversions including dormer loft conversions, L-shaped loft conversions, mansard loft conversions, hip to gable loft conversions and Velux loft conversions across London and Hertfordshire. Home renovations: Full and partial house renovations, flat and apartment refurbishments, kitchen and bathroom renovations across London and Hertfordshire. Architectural design services: Full architectural design service including planning permission, building regulations, structural calculations, party wall agreements, project management and construction drawings. New builds: Design and build of new residential properties and small developments across London and Hertfordshire. All projects are delivered as a complete design and build service — one company, one estimate, one point of contact from initial design through to construction completion. Optional 10-year LABC warranty on all projects.


Contact info

4.5

Excellent

TrustScore 4.5 out of 5

103 reviews

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Rated 5 out of 5 stars

I couldn't be happier with my loft…

I couldn't be happier with my loft conversion and extension done by LCCL Building Construction. Real craftsmanship, professional management of the entire build from start to finish, seamless integration of new space within the existing one. The work was kept on schedule and finished on time upon agreed budget. Highly recommended!

April 15, 2026
Unprompted review
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Reply from LCCL Construction

Thank you so much, Plamen! Real craftsmanship and seamless integration are exactly what we strive for on every project, so it's wonderful to hear this came through in your experience. Keeping the build on schedule and within budget is something we take very seriously and we're delighted it made a difference. We really appreciate you taking the time to leave such a kind review. The LCCL Construction Team.

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Rated 5 out of 5 stars

I highly recommend LCCL Construction

I highly recommend LCCL Construction. They completed our loft conversion to a very high standard, and the quality of their work throughout was excellent. The team was professional, reliable, and completed everything within a very reasonable timeframe. They were also fairly priced, which made the whole experience even better. We’re really pleased with the final result and would definitely use them again.

March 12, 2026
Unprompted review
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Reply from LCCL Construction

Thank you so much for your kind words, Alina. We're delighted to hear you're pleased with your loft conversion and that the team's professionalism, reliability and timelines met your expectations. Delivering high quality workmanship at a fair price is exactly what we aim for on every project. We really appreciate you taking the time to leave a review and look forward to working with you again. The LCCL Construction Team.

Rated 3 out of 5 stars

Frustrating experience trying to book a consultation

I tried to book a consultation call through LCCL Construction’s website for our renovation project, but their booking system repeatedly failed after multiple attempts. I then called their office several times all calls went unanswered. On one occasion, a lady picked up and tried to guide me through the online booking process, suggesting I try again. I followed her advice, switched browsers, accepted all cookies, and retried but the system still didn’t work.
I attempted to call back later in the day, but again, no one answered the phone.
What I found particularly frustrating was that despite clearly explaining the issue, there was no effort to simply book the consultation over the phone. It felt like there was little interest in actually securing a potential client.
After many trials, I eventually realised that their booking system only works on the mobile version of their website, which is far from clear and wasted a lot of time.

April 9, 2026
Unprompted review
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Reply from LCCL Construction

Thank you for taking the time to leave this feedback — we are sorry to hear about the difficulty you experienced.

We have thoroughly checked our booking system following your review and can confirm it is fully operational across all devices and browsers, including desktop. We are not aware of any issues and have not received similar reports from other clients during this period.

That said, we completely understand how frustrating it must have felt when things did not go smoothly, and we apologise that our team was not able to offer to book the consultation directly over the phone during your call — that is absolutely something we should have done.

If you are still considering your renovation project, we would genuinely love the opportunity to speak with you. Please call us directly on 020 8037 7332 and we will arrange everything for you straight away.

We hope to hear from you.

LCCL Construction

Rated 5 out of 5 stars

Our project was design and build of a 2…

Our project was design and build of a 2 storey side and rear extension and a mansard loft conversion. We liked the approach of having everything designed and built by one company as it was easier for us to manage around our everyday lives. The design was quickly and efficiently and planning permission obtained. We were guided very well through all of the build stages and communication was excellent. Everything from the early construction stages to designing and fitting the kitchen and bathrooms. In terms of the finishing standards they were very high, every detail has been beautifully finished flooring, lighting, underfloor heating, panelling everything looks stunning.

January 10, 2025
Unprompted review
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Reply from LCCL Construction

Dear Customer,

Thank you for your review of LCCL Construction! We are absolutely delighted to hear that we were able to transform your family house into your dream home after all those months of planning.

It’s wonderful to know that our dedicated team of professionals provided you with the high level of service and expertise that you deserve. We take immense pride in our craftsmanship, and your satisfaction with the quality of your build means the world to us.

We truly appreciate your kind words and your trust in us. It was a pleasure working on your project, and we look forward to the chance to collaborate with you again in the future!

Best wishes,
LCCL Construction Team

Rated 5 out of 5 stars

Extremely professional and personable company - highly recommended

Alex is super professional and on the ball at all times. He always thinks ahead and won't let you down. All his teams, from bricklayers, carpentry to electrics, roofing, tiling, painting, flooring and plumbing are excellent and hard working. They are all friendly yet professional. They are conscientious and want the job to be well done. Would really recommend this company that has a lot of experience working across London and with the different Councils, especially with garden and loft extensions. We are very happy with our loft extension which includes a brand new kitchen. LCCL showed great attention to detail. They did a fantastic job!

January 31, 2025
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Reply from LCCL Construction

Dear Ludovic,

Thank you so much for your incredible 5-star review of LCCL Construction! We are absolutely thrilled to hear that you highly recommend us for mansard loft conversions in London. It’s wonderful to know that you are very happy with the loft conversion we built for you.

We take great pride in our services and it’s gratifying to learn that we met your expectations. Your kind words motivate us to continue delivering exceptional work for our clients.

Thank you once again for your recommendation! We look forward to the opportunity to assist you with any future projects.

Best wishes,
LCCL Construction Team

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Rated 5 out of 5 stars

Extremely impressed

Extremely impressed with the work LCCL have done for us. Communication is key in this type of work and it continued the whole way through the project. The result being a very successful extension has been built and we are incredibly pleased how everything has turned out. LCCL are professional but friendly always making sure all the different trades were working towards the same goal. My standards are high and my standards were 100% met with LCCL. Very happy indeed and would definitely recommend.

December 2, 2024
Unprompted review
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Reply from LCCL Construction

Dear C.Smith,

Thank you so much for your glowing 5-star review of LCCL Construction! We are absolutely delighted to hear that you highly recommend us for house extensions. It’s fantastic to know that the large rear house extension we designed and built have made such a positive impact on your home.

Your satisfaction is our top priority, and we’re thrilled to hear that our services met your expectations. We truly appreciate your kind words and your trust in our team.

Should you have any more projects in the future, please don’t hesitate to reach out. It’s been a pleasure working with you!

Best wishes,
LCCL Construction Team

Rated 5 out of 5 stars

Alex and his team have done a fantastic…

Alex and his team have done a fantastic job on our loft conversion and were a pleasure to work with from start to finish. I am over the moon with the results and highly recommend them to anyone

December 9, 2024
Unprompted review
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Reply from LCCL Construction

Dear Joy,

Thank you so much for your highly appreciated 5-star review of LCCL Construction! We are thrilled to hear that you are so pleased with your loft conversion. It’s fantastic to know that our design and build services met your expectations.

Your recommendation means the world to us. We take great pride in delivering quality work, and it’s wonderful to hear that it has made a positive impact on your home.

If you have any future projects in mind, we would love the chance to work with you again!

Best regards,
LCCL Construction Team

Rated 5 out of 5 stars

Amazing experience with LCCL…

Amazing experience with LCCL Construction. They completed the work on my flat after i was left in tought situation by a previous builder. The work was conducted on time with great attention to detail. Im really happy with the result. Wouldn’t hesitate to use again and would recommend to anyone.

January 15, 2025
Unprompted review
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Reply from LCCL Construction

Dear Gerald,

Thank you so much for your amazing 5-star review of LCCL Construction! We are delighted to hear that you had a positive experience with our team.

We're committed to providing high-quality design and build services, and your kind words reaffirm our efforts. It means a lot to us to know that you are very happy with the services you received.

Thank you for recommending us! We truly enjoyed working on your projects and would be thrilled to assist you with any future renovations.

Best wishes,
LCCL Construction Team

Rated 5 out of 5 stars

LCCL Construction was the right company…

LCCL Construction was the right company to help with my loft conversion. I heard of other people’s challenging experiences with building works so I was very careful which company I chose. LCCL Constructions was professional, trustworthy and worked to the highest standard. The process was smooth and I’m very happy with the result - it has transformed the quality of my home.

January 8, 2025
Unprompted review
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Reply from LCCL Construction

Thank you very much for the lovely comments it is very much appreciated, we always strive to do our best and work to high standards for all our customers, we wish you all the best from all team at Lccl Construction.

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Rated 5 out of 5 stars

Highly recommend company

We Had a new loft conversion completed by LCCL Construction to our old Victoria house, very pleased with the end result, great communication throughout, was very patient with all the changes made and was completed in good time. Highly recommend company.

October 18, 2024
Unprompted review
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Reply from LCCL Construction

Dear Shane,

Thank you for wonderful 5 star rating about our services, proud to hear that we have delivered our services as expected and beyond. We are also glad that project has completed in time and that communication was great throughout the project.

All the best from LCCL Construction.

Rated 5 out of 5 stars

10 out of 10 Company

We have had the pleasure of working with LCCL Construction for over a year now, very professional company to deal with, good communication, all there jobs run smooth and all the staff are friendly and polite. I would not hesitate in recommending LCCL to any one looking to have any building works done.

November 13, 2024
Unprompted review
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Reply from LCCL Construction

Dear Herts Glass,

We are very delighted to hear that you are happy and feel that our teams are professional, easy to communicate and that we have made your experience with us a very positive one.

All the best from LCCL Construction.

Rated 5 out of 5 stars

LCCL were a great company to work with…

LCCL were a great company to work with from start to finish. The level of care and professionalism throughout was very high with clear and concise communication, disruption kept to a minimum where possible and work completed on time at every stage. Would definitely recommend to any friends or family looking to undertake a similar build project.

September 13, 2024
Unprompted review
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Reply from LCCL Construction

Thank you, Mark,

For your generous 5-star rating of LCCL Construction! We greatly appreciate your positive feedback and are thrilled to hear that you are very happy with the quality of the design and build on your project.

It's fantastic to know that we were able to complete the build on time and minimise any disruption. Your satisfaction is our ultimate goal, and your kind words have truly made our day. We look forward to working with you again in the future!

All the best from LCCL Construction team

Rated 5 out of 5 stars

Great work ethic

Great work ethic, with attention to detail and value for money. Was helpful from start hence why we choose them for works. Went from very dated old house to brand new house in few months. Alexander made sure all is as it should and we couldn't be more grateful.

September 3, 2024
Unprompted review
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Reply from LCCL Construction

Dear David,

Thank you for leaving feedback and we very much appreciate your input about our services and our company.

Thanks for sharing that we have an excellent work ethic, high attention to detail and value for money, we always saved where we can and advised you, helped you and guided you for best possible decisions.

Your new house is amazing, from entry, to walkthrough, to social areas but also bedrooms and bathrooms are really enjoyable environment. With the house being so spacious and bright it really gives you a feel-good positive feeling.

Thanks for feedback on Alexander too he is very experienced and knowledgeable.

We wish you all the best for LCCL Construction team.

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Rated 5 out of 5 stars

Steven Gray

Great company to work with.

September 1, 2024
Unprompted review
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Reply from LCCL Construction

Hi Steven

Thank you for the feedback and we really apriciate you taking time to leave feedback about our company

We are very much excited to work with you on current and future projects

We wish you all the best from LCCL Construction

Rated 5 out of 5 stars

Very happy with the services provided…

Very happy with the services provided go us by LCCL Construction. The team were very professional and easy to communicate with at all times and made the whole experience easy. The standard of work delivered was excellent.

August 28, 2024
Unprompted review
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Reply from LCCL Construction

Dear Marisa,

Thank you for taking time to leave a review about our company architecture and construction services.

We are very delighted to hear that you are happy and feel that our teams are professional, easy to communicate and that we have made your experience with us a very positive one.

It was an absolute pleasure working on your house, we strive to achieve best possible value and provide best possible experience and are very happy that we have achieved this with your experience with us.

All the best from LCCL Construction.

Rated 1 out of 5 stars

Misleading website advertisement.

The company’s website advertised that they cover whole of UK. They get you fill in an online quote form to book a free consultation call. This is only possible if you accept all the cookies.
After booking the free consultation call you receive a booking confirmation by email.
Then about 1/2 hour later you receive a notification that the free consultation call has been cancelled because they do not cover your area.
So I have wasted a good 1/2 hour in completing this form and allowing all cookies.
They should not be advertising the cover all areas.

August 13, 2024
Unprompted review
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Reply from LCCL Construction

Dear sirs, thanks for you message, very sorry for inconviniance caused, we are located at 3rd Floor, Hathaway House, Popes Dr, London N3 1QF and our services for architecture and construction, design and build would cover London and Hertfordshire Areas, unfortunatley we would not be able to cover whole of the United Kingdom.

We have looked into what happened with your booking and you have been notified a day in advance that we do not cover your area, and we have canceled your consultation call.

Wishing you all the best from LCCL Construction team.

Rated 5 out of 5 stars

Great quality work, solid structures and efficientpically write reviews but…

I don't typically write reviews but felt I had to in this instance. After a painful experience with a different local architect and then another building contractor for over a year who managed rip me off and do next to nothing, after months of trying to work on the house by myself I'm very happy to have found and hired LCCL for my home.

What started nearly 3 years ago for me, in just over 6 months with LCCL, they managed to transform my damp, musky, 1900s mid-terrace house in dire need for repair into a clean and modern living space which should easily last another 100 years. Loft conversion, full rear extension, patio, outside rendering fixes, new doors and windows and complete electrics and plumbing rehaul - plus the removal of that horrible woodchip wall and ceiling interiors.

LCCL provided complete management and oversight package as I could no longer be there all the time due to work (no more lockdown rules meant back to the office we go); overseeing building control assessments, boundary wall party agreements, architects, structural engineers, bathroom and kitchen designs. They ensured they used the highest quality grade materials and trusted 3rd parties for my limited budget and the difference in quality is truly noticeable - my original extension before this was only 9 years old and yet was already crumbling compared to now which is completely solid, LCCL having fixed all house structural issues along the way.

And when costs did escalate due to many unforseen circumstances, LCCL identified and discussed options and compromises early on to keep on plan. Now don't get me wrong, there was still a fair bit of builder lingo floating about and I had to regular ask what that meant to get further clarification and understand costs which did go up with cost of materials and issues needing to be fixed. Each time however I would get a detailed explanation, whether over WhatsApp, phone-call or in-person on-site and a chance to think things through. The ever increasing cost of materials, potential issues only discovered when pulling the place apart and 20% VAT as an individual is not something for the faint of heart - plus I didn't want to make the mistake of buy-cheap buy-twice!

Great regular updates with photos via WhatsApp throughout the entire build and excellent quality finishes, they only stop with the finish as if it was their own home. Highly recommended and if I were ever to undertake any building work like this again I'd seek LCCL again.

July 24, 2024
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Reply from LCCL Construction

Thank you very much for the lovely comments it is very much appreciated, we always strive to do our best and work to high standards for all our customers, we wish you all the best from all team at Lccl Construction.

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Rated 5 out of 5 stars

I recently consulted with Amelia about…

I recently consulted with Amelia about potentially buying a couple properties that needed some work done. One place needed a loft conversion, and the other required building out a side extension. Although I didn't end up purchasing either property, Amelia provided a very helpful and thorough consultation. She walked me through all the details of the potential renovations, and suggested some creative refurbishment ideas I hadn't thought of originally. She was also prompt in following up our discussion with a detailed written estimate that broke down the costs very clearly. This was great for giving me a better sense of what the projects would entail. Even though I didn't hire LCCL for the work, I wouldn't hesitate to recommend them, especially Amelia, for any construction needs in the future.

April 10, 2024
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Reply from LCCL Construction

Hi

Thank you very much for the lovely comments it is very much appreciated, we always strive to do our best and work to high standards for all our customers.

We are really pleased, with how delighted you are with our Free Consultation Services.

Thanks again.

All the beast from all LCCL Construction team.

Rated 5 out of 5 stars

EXTENSION BUILT BY LCCL CONSTRUCTION

Extension built by LCCL Construction. We have just recently completed our ground floor house extension on our semi-detached home in Finchley. The services we used were for the design and build of the extension which is three meters and the full breadth of the back of the house. We also added a new patio outside the new extension and some landscaping in the garden. The design was completed nice and quickly and everything was drawn up to our satisfaction. LCCL started the building works straight after all the design stuff was done. The building works took about three months and were completed faster than we had anticipated which was very good as we can now relax in our new space. We have been very impressed by the whole process and the quality of the finished build all the finishing touches were taken care of with careful attention to detail we were also happy with the pleasant and professional team.

March 15, 2024
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Reply from LCCL Construction

Hi Eva,

Thank you very much for the lovely comments it is very much appreciated, we always strive to do our best and work to high standards for all our customers.

We are really pleased, with how delighted you are with our architecture and construction services for your house and trusting in us to succefully deliver your project.

Working at your house was an absolute pleasure. Thanks again.

All the beast from all LCCL Construction team.

Rated 1 out of 5 stars

What a horrible and rude company to…

What a horrible and rude company to deal with

April 9, 2024
Unprompted review
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Reply from LCCL Construction

We do not wish to deal with your company services, and services that your company offers as you have called us on cold caller basis we do not know who you are and we do not accept cold caller phone calls, there is email address on website that companies use to offer services to us. And if we wish to get in touch we will otherwise we do not require the services you are offering.

LCCL Construction Team

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