Loft Conversion Companies in Watford

Name: Loft Conversion Company
Brand: MyBuilder
SKU: loft-conversion-company
Rating: 4 (7 reviews)

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Some of our top rated loft conversion companies in Watford

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Ivaro Design and Build
Rating: 5 out of 5
Loft Conversion Company in Watford
Ivaro is a dynamic, innovative and trusted Contractor founded in the UK with years of experience. Our expertise, confidence and background enable us to deliver your vision exactly the way you pictured it in mind. Here at Ivaro many factors take into account for a project to be a success. We take pride in building a solid foundation with our client before taking on any project.
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Latest review:
Loft Conversion- 9 Feb 2020
We hired Ivaro to refurb our existing loft - including knocking down a bathroom and taking out the ceiling to extend the space. Rajiv was excellent from the start, very professional, communicative and accommodating. His staff were clearly very experienced and they completed the job quickly without disappearing for a few days. Although they charged more than some of the others who quoted, they were worth every penny. We even asked them to take on a few additional tasks, which again they completed quickly and to a very high standard. We would definitely hire them again and thoroughly recommend them. Thanks guys!
DESIGN LAYOUT & BUILD LIMITED
Rating: 5 out of 5
Loft Conversion Company in Watford
Design Layout and Build Ltd wants to offer its customers quality work for fair prices. For any project we provide a minimum of 12 months warranty. For this we always use quality materials and skilled craftsmen. We are polite, friendly and have great experience in our trades. Our team is eager to complete your projects!
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Latest review:
Carpentry- 12 Sep 2015
We were extremely pleased with Daniel and his colleague's work. Daniel gave me a fully costed quote promptly, answered emails quickly and was knowledgeable about what needed to be done. They were punctual, polite and very hardworking. The work was done to a high standard and I would not hesitate in recommending them to others.
KW Electrical Services
Rating: 5 out of 5
Loft Conversion Company in Watford
Hi my name is Kevin and I have been an electrician since 2002. I run a small electrical business called KW Electrical. I am a Which Trusted Trader, Hertfordshire County Council Approved, Part P Registered, over 150 reviews on Checkatrade and all round nice guy. I look forward to quoting competitively on your job.
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Latest review:
Kevin did the electrical work in my extension. He fitted new plug sockets, aerial socket and sky socket, also LED ceiling lights and outdoor PIR light. Kevin was very professional, polite and reliable. He worked efficiently and was tidy. He was also very helpful and explained things clearly to me. I have recommended Kevin to a friend and I will be using him again next year.
D Alexa Ltd.
Rating: 5 out of 5
Loft Conversion Company in Watford
I'm a self-employed builder with more than 14 years experience. I really enjoy my job as my work changes the whole view of my clients property. I always make sure my jobs are finish to a high standard as my clients hire me for a service & I believe they should always get the best
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Latest review:
Restoration & Refurbishment- 13 Aug 2019
David and his team were excellent. They are always on time and very professional. They always cleared up at the end of the day thereby leaving very little dust or dirt around the house. No query or issue was ever insurmountable; the answer was always "no problem", which was a joy to hear when having such a large project to do. Each different team i.e. electrician, plumber, arrived exactly on schedule so there were never any delays. The end result was amazing. I highly recommend David and his team.
Craftwork Construction
Rating: 5 out of 5
Loft Conversion Company in Watford
Craftwork is built on a 30+ year partnership working in West London and the surrounding area. we take on mostly building work but have subs for other trades.
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Latest review:
Conversions - General- 30 Aug 2018
We did not go ahead with this job as we did not purchase the property, however, Craig and his team phoned me and explained to me over the phone what is needed and provided me an estimate over the phone which is what I was looking for. This helped me and put in to context what I was dealing with. Thanks very much.
Alin gherca
Rating: 5 out of 5
Loft Conversion Company in Watford
We have been operating in the Greater London area for over ten years, acting as subcontractor and general contractor. We have an extensive list of references which we can provide.
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Latest review:
Loft Conversion- 22 Aug 2024
From start to finish, we had a wonderful experience with Alin of Smart Builders. He took us a show some of his previous work and we felt confident in giving him the job of our loft conversion and garden gym building. He has a team of hard-working professionals and they made the job go very smoothly and efficiently, from day one. He started his timeline and even though we had small issues along the way which is to be expected he always had a solution or more than one solution for us and was mindful not overspend on our behalf. Honestly, we could not have asked for a Builder and the end result is really beautiful. The team were very friendly and polite and cleaned up behind themselves every single day. I wouldn’t hesitate to recommend Alin to anyone who is lucky enough to book him for their job.
Alb Homes Ltd
Rating: 5 out of 5
Loft Conversion Company in Watford
Alb Homes Ltd is a family-run business that’s evolved from humble beginnings. With over 25 years of experience and 100+ projects completed, we have honed our skills to a level recognised by the Federation of Master Builders. We are always on hand to answer any questions and place a strong emphasis on documentation – allowing you to have a continuously transparent understanding of your project. When building with Alb Homes Ltd, you can rest easy with the confidence that you are in competent hands.
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Latest review:
Extensions- 26 Sep 2023
Well priced completed the project on time even though there was some unforseen works along the way. I had a back extension and some steel beams installed very happy with the the completed works
AH Builder
Rating: 5 out of 5
Loft Conversion Company in Watford
AH North Builder Ltd specialise in all types of building we are professional and very determined to ensure our clients expectations are met. we have worked on many different building projects for more than 10 years experience.
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Latest review:
Carpentry- 11 Sep 2024
They completed the task of fitting wood floor to the downstairs of the property to my satisfaction. I also got them to fit the skirting board and architraves around the doors. At each step I was able to talk to Alfred and get things sorted accordingly but I did not expect so much dust to come out of fitting wood on the floor.
Concorde construction Ltd
Rating: 5 out of 5
Loft Conversion Company in Watford
We cover all types of construction. From your small handyman jobs to building large extensions and summer houses. We specialise in all types of carpentry, bricklaying and decorating. We can take care of all of your building needs with plenty of recommendations. Look forward to hearing from you.
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Latest review:
Extensions- 5 Oct 2022
I am very pleased with the work Josh and his team did in building my rear extension. They were a friendly and hard working bunch and very respectful of my space. Josh did a great job in project managing the work and making sure things were progressing as planned. Any snagging items were dealt with promptly. I would hire them again if required and recommend them to anyone who wanted to have building work done.
North Builders LTD
Rating: 4.8 out of 5
Loft Conversion Company in Watford
North Builders LTD have a team of specialists which gives you quality and high standard work on Loft conversions, Extensions, Roofing, Renovation, Refurbishment. We based in London and we cover all M25. With the best quality work and proffesional prices on the market we managed to make happy a lot of costumers around London and not only. Our priority is the costumer to be satisfied, the project to finish in timeline and on budget. Contact us for free quotes.
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Latest review:
Loft Conversion- 2 Nov 2025
Full loft conversion with dorma. Blerim always asked the right questions and made really good suggestions. Very helpful and great quality. Would happily recommend him and his team.
Tivadar
Rating: 4.8 out of 5
Loft Conversion Company in Watford
To pleased the customers and quality of my Jobs it's my first priority. This is what have been doing for several years. My experience includes full refurbish. For any questions do not hesitate to contact me
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Latest review:
Restoration & Refurbishment- 26 Mar 2024
I hired him because he seemed very nice and honest. However, there was an issue with something that It wasn't done as I asked him and instead of trying to solve it he came to pick up the tools and leave me hanging with the job. I payed him for a job that he didn't finish and had to finish myself as I could. No attention to detail and wanted to finish things fast so he could move on to another job, which means the job was poorly done. His English is not very well so the communication was poor.
Two Brothers Refurbishment
Rating: 5 out of 5
Loft Conversion Company in Watford
At Two Brothers Refurbishment, we don’t just build and renovate — we transform spaces, improve lives, and bring our clients’ visions to life. Built on trust, craftsmanship, and a strong work ethic, our company has quickly earned a reputation for quality and reliability in the UK construction and refurbishment industry. Two Brothers Refurbishment is a family-rooted construction company with a passion for building done right. With years of hands-on experience in a wide range of projects, we have built a team of skilled professionals — carpenters, builders, electricians, plumbers, and decorators — who share one goal: to deliver top-quality work, every time.Our mission is to provide comprehensive construction and renovation services that are tailored to the unique needs of every client. We aim to create functional, beautiful, and lasting spaces while maintaining the highest standards of professionalism, communication, and care. We specialise in a broad spectrum of residential construction services, including: -Home Extensions & Loft Conversions -All aspects of structural work -Full Refurbishments & Renovations -Kitchen&Bathrooms -Renovation&Refurbishment -we can Create/Design/Build -All insurances in place
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Latest review:
Extensions- 30 Jul 2025
We are delighted with the work done by Saby and Mikhail, very easy to work with, high quality finish and they listened to all our requests. 5 stars all the way.
8T Construction
Rating: 5 out of 5
Loft Conversion Company in Watford
8T Construction is a general contracting company specialising in residential renovations, extensions. We put a lot of attention into a high standard finishes and a good workmanship. For us, the biggest reward is a happy customer
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Latest review:
Hard Flooring- 12 Oct 2021
Tomasz is a reliable and professional person who made us feel at ease and really helped us out during a stressful time. His work was completed to a very high standard as he went above and beyond to make sure we got the job done before our little girl was born. We wouldn’t hesitate in calling Tomasz if we need more work in the future. Thank you Tomasz and good luck!
Mbalau Construction LTD
Rating: 5 out of 5
Loft Conversion Company in Watford
Builder with 20 years of experience . I provide a wide range of building services such as: loft conversion, extensions,bathroom refurbishment,house refurbishment , plumbing and electric etc . I have the tools,knowledge and team to build a house from start to finish . I can provide references and pictures of previous work upon request .
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Latest review:
Complete refurbishment of 2 bed 1100 sq ft flat. Including removal internal walls Ripping out and renovating 2 bathrooms. Involving new layout replumbng and relocation of #electrics. Tileing Preparing and laying wood flooring throughout. Fitting shelving and book case. The work over 2 months involved all building skills. Throughout Marcel and his highly skilled crew were efficient clean and resourceful. I would highly recommend for all building and decoration work.
MNR
Rating: 5 out of 5
Loft Conversion Company in Watford
House renovator
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Latest review:
Handyman- 22 May 2026
I recently had building work completed by Marcus Rus and was very pleased with the overall standard of workmanship and professionalism shown throughout the project.The work was completed efficiently, communication was good, and any issues that arose were treated promptly. I found Marcus to be polite, hardworking, and kept my property tidy at all times. I would happily recommend him to anyone looking for reliable building services and would use him again in the future.
Irz construction ltd
Rating: 5 out of 5
Loft Conversion Company in Watford
Irz construction ltd was created 5 years ago always were recommend to costumers all around London Type of jobs we do Refurbishments Extension Loft conversation Gardening Driveways Painting decorating All projects we did are available to visit and see It in person also ask the owners about their experience with us The director has been 7 years on this industry previously managing another successful construction company
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Latest review:
Restoration & Refurbishment- 19 Nov 2019
Iljaz and his Team were brilliant! I was slightly concerned having no reviews. They found the leak, fixed it and patched up the wall in very tidy and professional manner. He did say he wouldn't be able to come today and updated me, however he made time to come in-between his day to sort out my issue. Not many true trades people like this and very honest and stuck to his word. I would definitely recommend him and would not hesitate to use his team again. Thank Iljaz!

Top rated Loft Conversion Companies

Our Loft Conversion Companies in Watford, are rated 4 out of 5 based on 7 reviews from customers like you.

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What services are offered by loft conversion companies in Watford?

Converting a loft often entails many jobs - some of which you likely haven’t even considered! Fortunately, a professional loft conversion company in Watford 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 Watford 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 Watford

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 Watford loft conversion company.

Find a loft conversion company in Watford 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 Watford.

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 Watford can view your job and register their interest.

Step 2: Review and compare Watford 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 Watford 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 Watford 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 Watford

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 Watford?

A local loft conversion company in Watford 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 Watford 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 Watford 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 Watford

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 Watford before agreeing to start the work.

Do I need planning permission for a loft conversion in Watford?

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 Watford 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 Watford loft conversion companies offer strategies to minimise disruption, but in complex projects, temporary relocation may be advisable.