Loft Conversion Companies in Waterloo

Name: Loft Conversion Company
Brand: MyBuilder
SKU: loft-conversion-company
Rating: 4.5 (13 reviews)

Easily find verified Waterloo Loft Conversion Companies. Just post your job to get quotes from MyBuilder's Loft Conversion Companies in Waterloo.

Select a service

How it works

Post your job for free

Tell us about your job, and we’ll alert suitable tradespeople in your area. It’s simple and free.

Tradespeople respond

Once your job is posted, you’ll get responses from interested tradespeople through the website.

Review profiles and choose

Browse profiles, work history, and feedback, then choose who you wish to share your details with.

Some of our top rated loft conversion companies in Waterloo

1822 Results

Sort by:

Timall design& build Ltd
Rating: 5 out of 5
Loft Conversion Company in Waterloo
Timall Undertake all sort of building work including New Build, Refurb, extension, loft conversion.
Get in touch
Latest review:
I received planning permission for a 3m extension, garage conversion and garden office with a toilet/shower and the architect recommended Timall. We of course carried out all our due diligence before selecting Timall as our builder. I received around 8 final quotes from various legal and reputable builders, and gratefully we chose Timall after checking their previous projects. Timall renovated my townhouse, stripped to brick, repartitioned to be more functional for my family, moved bathrooms, new kitchen etc. The council building control said we needed piling for the 3m extension, and Timall were fantastic to change their plans to carry out other internal work whilst a piling specialist was called in, who Timall also liaised with. The garden office, 3m extension and garage conversion all went well. Parminder the director was very hands-on during the project daily, with his builders on-site daily, honest in his advice, and very experienced in his knowledge of the building industry.
Built London Ltd
No reviews yet
Loft Conversion Company in Waterloo
We are a high-end construction company based in London, specialising in refurbishments, new build homes, extensions, and loft conversions. Our services include design and build, architectural solutions, and project management ensuring a seamless process from concept to completion. With over 20 years of experience, we’ve delivered exceptional projects across London and internationally, including grade-listed building restorations and refurbishments, where we’ve honed our craft in preserving heritage while introducing modern luxury. Our expertise extends beyond residential projects. We provide commercial construction services for clubs, hotels, offices, and retail spaces, delivering high-quality outcomes tailored to each client's vision. Whether it’s a * one-bedroom home or a full-scale development, we have the skills, resources, and passion to bring your ideas to life. We have also featured on channel 4 Grand Designs.
Get in touch
Enbuild STRUCTURES LTD
No reviews yet
Loft Conversion Company in Waterloo
Enbuild is a London based high-end specialist contractor in residential and commercial buildings. Our work include new build structures, house refurbishments, extensions, loft conversions and shop fit out Our team consists of Project Managers, Structural Engineers along with our dedicated construction specialists and qualified teams we offer complete construction works with hassle free management for our clients and their Architects.
Get in touch
Woodlake Building Contractors
Rating: 5 out of 5
Loft Conversion Company in Waterloo
About us: We are a General Building Company, established in 2000 specialising in Home Extensions, Loft Conversions and Full Home Renovations. Our workmanship and reliability are the firm standards which we have built our company reputation upon, to deliver a high quality product and value to our customers homes. We pride ourselves for having qualified tradesmen in our team who have been working together with us for many years. Our projects are delivered on time and within budget.
Get in touch
Latest review:
Carpentry- 3 Apr 2021
I am really pleased with the work woodlake have done in my flat. Gudarz and Darius have done a brilliant job. The flooring and painting is to a very high standard and it has really transformed the space. Very professional and great work ethic.
Builds Magic LTD
Rating: 5 out of 5
Loft Conversion Company in Waterloo
We are a family business with an efficient and professional service. Having undertaken full renovations, extension, loft conversions and everything in between, we know we’ll be able to make your dreams come true. We won’t be the cheapest quote but we will be the most competitively priced to delivery the quality you’d expect and deserve. Working in partnership with our architects, engineers and surveyors we can support you from planning permission all the way to build completion.
Get in touch
Latest review:
Extensions- 17 Mar 2024
Very happy with what we ended up with. Would use again, thank you
DPS Building & Maintenance Ltd.
Rating: 4.7 out of 5
Loft Conversion Company in Waterloo
We build, refurbish and extend buildings. Our strong regional presence allows us to foster trusting and beneficial working partnership with our customers, consultants, supply chain and local communities.
Get in touch
Latest review:
Extensions- 15 Oct 2020
DPS were superb from start to finish. They were hired to build a single storey rear extension in North London including a new kitchen and bathroom fit. I met Ralph on site along with a number of other builders, Ralph was highly knowledgeable and clearly explained what was required with practical solutions. DPS clearly scoped out the timeline and cost for each stage of the build and kept to this. They completed several agreed extras throughout the job. Communication with Ralph and the whole DPS team was first class throughout. I own a number of rental properties and can comfortably say DPS are the best builders I've dealt with, I cannot recommend them highly enough, they will be my first port of call for future work.
Ahmed
Rating: 5 out of 5
Loft Conversion Company in Waterloo
My name is Ahmed I’m carpenter 10 years ago Kitchen Doors Floor Partition
Get in touch
Latest review:
Carpentry- 22 Mar 2026
Ahmed was great, very professional and friendly. Did the job to a great standard and also explained things to me along the way. Would definitely hire again in the future. Thank you again Ahmed!
SM Refurbishment Ltd.
Rating: 5 out of 5
Loft Conversion Company in Waterloo
SM REFURBISHMENT LTD. is a well established company that has been in business for over 10 years and provides a comprehensive suite of building services. Our carefully selected team have a broad range of experience. If you are looking to extend, convert, refurbish or redecorate your property, we are here to assist you all the way from concept to completion offering individually tailored services. We are also specialists in carpentry and joinery projects as well as kitchen and bathroom refurbishment. We are FENSA accredited windows and doors installers.
Get in touch
Latest review:
Restoration & Refurbishment- 21 Nov 2023
Slawek and Andrew did an amazing job on the front and side of our terraced house. The quote was fair (and they stuck to it) and the attention to detail was refreshing. We were kept informed throughout the works - communication was excellent. I whole-heartedly recommend SM Refurbishment.
Vision Construct Group ltd
Rating: 5 out of 5
Loft Conversion Company in Waterloo
Experienced builders, Vision Construct Limited specialise in all domestic developments Extensions, Lofts, Basements, New Build, Renovations. We have a number of years experience of working in the industry, we have done many different projects, New Build, Extensions, Loft Conversions,Basements. We take on projects of all sizes, from small renovation works to project managing your new extension.
Get in touch
Latest review:
Ivan and his team completed a full loft conversion at our terraced house, and we couldn’t recommend them more highly. They did a fantastic job from start to finish and were a pleasure to work with. Communication and project management throughout the project was excellent, and their commitment really showed. Nothing was ever too much trouble to ask. The project was completed within the estimated timeframe, which was especially appreciated as it finished just before Christmas. The team was very considerate while working in our home, and we stayed in the house for the entire duration of the project with minimal disruption. In addition to the loft conversion, they also replaced all our doors with fire doors and installed new flooring throughout the house, all to a very high standard. We’re absolutely delighted with the results and would highly recommend Ivan and his team to anyone considering similar work.
GENERAL REFURBISHMENT
Rating: 4.3 out of 5
Loft Conversion Company in Waterloo
Professional building team who offer professional, efficient and very affordable service to guarantee customer satisfaction. With over 14 years experience in the building industry - residential and commercial in England and Greece .
Get in touch
Latest review:
Bathroom Fitting- 3 Feb 2019
I have refurbished the bathroom first which Livio team undertook all of the works including electricity; plumbing, tiling and general make good. When works were finished in the bathroom I also asked them to do some works in my loft room. All the works were caried out to a very high standard. I am very pleased with the outcome and I shall call for their services for other works around the house in the near future .i would highly recommend them.
Torrent Plumbing & Heating Solution Limited
Rating: 5 out of 5
Loft Conversion Company in Waterloo
Founded in 2013 by Jav Tajfar, Torrent plumbing & heating solution Ltd provides honest and reliable service to all areas of London. Specialising in all aspects of gas and plumbing installations, we are Gas Safe registered and have over 10 years worth of experience in the industry. No job is considered too small, which is evident in our ability to adapt our services to cater for each individual customer's needs.
Get in touch
Latest review:
Bathroom Fitting- 26 Jan 2019
Jav and Joe are nice chaps, gave a very reasonable quote and started really quickly (the following day!). We ended up using someone else for the floor tiles after Christmas (we already know them) so these guys took out our old shower enclosure and fittings and fitted new ones including tiling inside the cubicle. There was a damp issue and a leak beforehand- both of which they repaired to a high standard or came up with solutions to so that the job could compete in time for Christmas. They explained all our options well. They went out to get extra materials without an extra charge and worked at a weekend to get it finished in time. Pleased with the finish and I hear metro tiles are particularly difficult to get spot on. I would have liked a more comprehensive quote beforehand but they provide me with this on request and the job finished on budget except for the work around the unexpected damp which was a small extra charge and we were told about this before we went ahead with the extra work. Good all rounders who can do a whole job like this, altho for anything particularly specialist (such as complex patterned or mosaic floor tiles) I chose to use someone who just does tiling and that id already used- although they do work with a specialist themselves for such jobs and his work examples looked high quality so no need to source anyone extra if you want them to manage the whole thing for you. Would use again.
T&Gee Construction Ltd
Rating: 5 out of 5
Loft Conversion Company in Waterloo
At T&Gee Construction we will guide you through the planning, designing and building stages and will keep you appraised throughout the entire process from start to finish.
Get in touch
Latest review:
T&G just finished to refurbish and extend 4 bed house in London for my company and they have done amazing job. It was a big refurbishment from top to bottom and they have done lovely lovely job. Al the people that saw the house gave highly recommendation about the level of the plastering and finishing. Thomas and Gintaras are highly professionals and they have a very good team. It was pleasure to work with them. They have high level of finishing, with reasonable price. As a property developer I'll be happy to work with them again.
Pine Construction Ltd.
Rating: 5 out of 5
Loft Conversion Company in Waterloo
As a civil engineer and principal building contractor we consult, design, construct and project manage any dwelling and commercial projects from minor repairs to complete new-build as well as any type of restoration/renovation and basement construction projects.
Get in touch
Latest review:
Extensions- 19 Oct 2017
The best team in London to work with they are highly skilled professionals and very easy to work with looking forward to work with them again
Builds the thrills LTD
No reviews yet
Loft Conversion Company in Waterloo
Hi
Get in touch
Horsley Construction ltd.
Rating: 5 out of 5
Loft Conversion Company in Waterloo
We are a small company based in north London specialising in extensions, loft conversions and garden rooms. I have worked in this sector for the last fifteen years and my company has been trading since 2016. We take on a small number of jobs but take them very seriously to get the best outcome. Our aim is to enhance the design during the building process and with clear communication create the absolute best project. Previously all our work has been repeat business and referrals.
Get in touch
Latest review:
We have known and worked with Joe for the last 6 years. He has recently built a ground floor kitchen extension and created a utility area and downstairs cloakroom for us. His ability to communicate each phase of the build’s requirements is brilliant. His craftsmanship is impressive. He has the ability to turn ideas into reality. Joe is a highly skilled plumber and electrician too which is hugely advantageous. He is professional and easy to have in your home. I can’t recommend Joe highly enough.
edss construction ltd
Rating: 4.2 out of 5
Loft Conversion Company in Waterloo
We deliver a professional building service and will work with you step by step from inception of idea through to completion, in order to meet all your personal requirements. We understand that undertaking building, construction or refurbishment on your home or property can feel like a very daunting task and finding the right builder can be an even bigger challenge. As reputable building contractors we can provide you with local face to face references from previous clients and recent examples .
Get in touch
Latest review:
Loft Conversion- 19 Oct 2025
Unfortunately, the work at my family home was left incomplete after significant delays, despite the contract ending. A RICS-accredited survey identified numerous unfinished items and construction defects. A later inspection revealed additional electrical and gas safety concerns, some now under formal review by NAPIT. Approved architectural plans were not followed, resulting in further disruption. The experience has had a lasting impact on our family, as we were left without a working kitchen, family bathroom, garden, or heating for extended periods. I strongly encourage others to carry out thorough due diligence and obtain independent checks before proceeding with any contractor.

4.5

Top rated Loft Conversion Companies

Our Loft Conversion Companies in Waterloo, are rated 4.5 out of 5 based on 13 reviews from customers like you.

Quality screening

Easily find verified local tradespeople. Just post your job to get quotes from tradespeople near you across the UK.

What services are offered by loft conversion companies in Waterloo?

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

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 Waterloo loft conversion company.

Find a loft conversion company in Waterloo 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 Waterloo.

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 Waterloo can view your job and register their interest.

Step 2: Review and compare Waterloo 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 Waterloo 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 Waterloo 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 Waterloo

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 Waterloo?

A local loft conversion company in Waterloo 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 Waterloo 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 Waterloo 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 Waterloo

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 Waterloo before agreeing to start the work.

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

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