Loft conversion companies in Thamesmead

Name: Loft Conversion Company
Brand: MyBuilder
SKU: loft-conversion-company
Rating: 5 (5 reviews)

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

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 Thamesmead

1437 Results

Sort by:

IVD Construction Ltd
No reviews yet
Loft Conversion Company in Thamesmead
Hello, I’ve been in the construction business for more than 13 years. I’ve been doing high end projects including basement excavation works, new roofs, extensions, full internal renovations, plumbing and electrical works, etc. My company works with high skilled professionals to satisfy all customer needs.
Get in touch
MCS CONSTRUCTION LIMITED
No reviews yet
Loft Conversion Company in Thamesmead
Welcome to MCS Construction Limited, your premier partner in the construction industry. Our passion is turning your dreams into reality. With a wealth of experience in house renovations, extensions, paving, loft conversions, excavation, bathroom refurbishments, new builds, electrical, and plumbing work, we offer a complete solution for all your construction needs. We're dedicated to delivering high-quality results and exceeding your expectations every step of the way. Trust us to build ?
Get in touch
SETHI CONSTRUCTION LIMITED
No reviews yet
Loft Conversion Company in Thamesmead
We are a registered construction company. We undertake all works related to : NEW build, loft conversion, extension, full house refurbishment, basement, garden landscape, kitchen and bathroom, plumbing and electrical works, carpentry, painting and decorating. ANY kind of house repair works . All the above said work is undertaken with guarantee.
Get in touch
Malkeet1construcstion
Rating: 5 out of 5
Loft Conversion Company in Thamesmead
“Hi, I’m Gurpreet singh. I’m a qualified builder with 7 years of experience in residential and commercial work. I specialise in all type of building work such as renovations, extensions, and general building. I take pride in quality workmanship and reliable service.”
Get in touch
Latest review:
Bathroom Fitting- 6 Sep 2026
Very happy with the work carried out by Gurpreet. Honest, reliable, professional and reasonable prices. I have no hesitation in recommending his work. New bathroom and kitchen fittings, painting and decoration.
CM Building LTD
Rating: 5 out of 5
Loft Conversion Company in Thamesmead
At CM Loft Conversions, we specialise in luxury loft conversions, home extensions, and full refurbishments for both residential and commercial properties across London. Our dedicated team is renowned for transforming spaces with unparalleled craftsmanship and meticulous attention to detail. Whether it’s a high-end home, a modern office, or a commercial property, we deliver projects that elevate both form and function. By seamlessly blending design innovation with practical solutions, we ensure every project not only enhances the aesthetic appeal of a space but also maximises its value and usability. At CM Loft Conversions, we are passionate about creating bespoke spaces that reflect the unique needs of our clients. From concept to completion, we focus on the fine details and provide a smooth, stress-free experience. Whether you’re looking to transform your home, expand your business premises, or refurbish a commercial unit, our team is committed to delivering results that exceed expectations.
Get in touch
Latest review:
I met Charlie and his team from CM Builders Ltd when they were completing a loft extension and ground floor extension for one of my neighbours. Quotation and budget I was given an estimate subject to drawings as I was on a strict budget that I had to keep to for the build. Charlie was able to help me keep to the budget, both at the final agreed plan and during the build. The project was complex in that whilst it was a loft extension, all of the house was rebuilt. The only thing kept was the external walls and first floor rafters. Whilst the footprint of the first floor was not being changed I wanted to bring it up to current building standards with extra insulation. All of the plumbing and electrics were also replaced including a new boiler. The overall build has come in on budget, save for agreed enhancements that I did not think of at the planning stage and or building regulations such as double ceiling fire plaster boards. There were also items such as the original stairs that I wanted to keep, but Charlie was able to increase the height space in the kitchen making the worktop much more usable for tall people for a larger part of the kitchen. These were suggested to me as potential options as part of the build. Stage payments The stage payments have all been sensible throughout the build and linked to the ongoing work schedule. I have not therefore had any concerns in this regard. Quality of work This was a very complicated build as unlike the ground floor the first and new second floor are “L” shaped. The new 2nd floor included an en-suite and 2 bedrooms. Overall the house has been increased from 2 bedrooms 1 bathroom, to four doubles and 2 bathrooms. The quality of work is excellent and Charlie project manages his team to ensure that they all deliver to a high standard- if it is not done correctlt they do it again, with Charlie spotting any issues. Timeline of build This has generally gone to plan very well. As with any build you have to be realistic as things will happen outside of anyone’s control. When issues have arisen Charlie manages them to a conclusion. Also be realistic if you are having to manage to a tight budget. I had to plan for various stage receipts of cash before I could order the kitchen and bathroom items - make sure you understand how this impacts the build and availability of the work force, recognising that CM Builders have to book kitchen fitters and plumbers. CM Builders are also very helpful in that they have sorted out issues with the brick work of my freestanding garage (nothing to do with the build) and also a neighbour’s wall that could have been dangerous to the public, should it have failed. Conclusion The whole family are very pleased with the outcome and we now have the equivalent of a brand new house that has been built to a very high standard. This has definitely been worth doing both from a valuation perspective and quality of life perspective. I would not hesitate to instruct Charlie and his team again.
ARdesignconstruction
Rating: 4.2 out of 5
Loft Conversion Company in Thamesmead
Just recently registered on My builder and trying to provide my services to private clients. First locally hired job taken, hopefully the client will be full satisfied and gives us good feedback at the end :) My services reasonably priced, if you wish to deal with professionals look no further. Construction, Renovation, Extensions, Refurbishment, Property maintenance. Decades of experience in UK and abroad. Reliable, Punctual, Attention to details.
Get in touch
Latest review:
Carpentry- 18 Dec 2021
Very unprofessional! Did not finish the job and promised to come back to finish it but never did. Has been ignoring my calls ever since. I will not recommend him at all to anyone!
AIA BUILDING CONTRACTORS LTD
Rating: 5 out of 5
Loft Conversion Company in Thamesmead
Our Family run business is built purely on word of mouth and on our reputation with genuine authenticated reviews available on our website. we take pride in all aspects of our work from home improvements inside and out, Bathroom Refurbishment, New Roofs, Painting and Decorating, Loft Conversion, Rear Extension, Velux windows, Roof Repair, Gutters and Drain pipes unbloking
Get in touch
Latest review:
Bathroom Fitting- 25 Mar 2022
Fantastic job very pleased with my bathroom under the stair. Thank you Ben. Pamela Robinson
Plastering and K rendering
Rating: 5 out of 5
Loft Conversion Company in Thamesmead
🏗️ General Builder • Roofing • Extensions • Refurbishment – London Looking for a reliable and professional builder in London? We provide high–quality construction and renovation services at competitive prices. ✅ Plastering & Insolation Silicone Rendering ✅ Our Services Include: • General Building & Refurbishment – Full house renovations, kitchen & bathroom fitting, plastering, flooring, painting & decorating. • Extensions – Single & double-storey extensions, side returns, rear extensions, loft conversions, and garage conversions. • Roofing Services – New roof installations, flat & pitched roofs, roof repairs, waterproofing, guttering & fascias. • Structural Work – Brickwork, concrete, foundations, and load-bearing alterations. 💪 Why Choose Us? • Experienced team with over 16 years in the trade • All work guaranteed & fully insured • Competitive, transparent pricing • Clean & reliable service – we treat your home with respect • Free, no-obligation quotes 📍 We cover all London postcodes – Central London,North, South, East & West.
Get in touch
Latest review:
Plastering- 16 Mar 2020
Almed and his team came over to see the two bungalows and gave me a quote and was more reasonable than other quotes I had previously. Almed started the job and stated exactly what he was going to do from the beginning to the end of the job. He is a very professional and knowledgeable person and he and his team did a outstanding plastering job on my two bungalows and I’m very happy with the job and will highly recommend him for future projects. Thanks Zai
Vasil
No reviews yet
Loft Conversion Company in Thamesmead
We are an experienced team of professional builders with many years of experience working across London. Our skilled tradesmen take pride in delivering high-quality workmanship, reliable service, and attention to detail on every project. We specialise in loft conversions, extensions, renovations, and general building work. Customer satisfaction is our priority, and we are committed to completing every job on time, within budget, and to the highest standard.
Get in touch
Harpreet singh
No reviews yet
Loft Conversion Company in Thamesmead
Preet Building & Renovation Ltd. (Dagenham) is a dynamic and innovative construction company , established to redefine the landscape of the construction industry. With a forward-thinking approach, we specialize in delivering high-quality construction projects that meet the evolving needs of our clients and the environment. Our mission is to build not just structures but sustainable and valuable spaces that enhance communities and lives.
Get in touch
Vasyl Stasiuk
New on MyBuilder
Loft Conversion Company in Thamesmead
Hi everyone. My name is Vasyl, and I have 12 years of experience working with wood and carpentry. I’m very versatile and flexible in the work I do, always happy to adapt to different projects and meet my clients’ needs.
Get in touch
Omer Builder
No reviews yet
Loft Conversion Company in Thamesmead
We are construction company who do all types of building work, with qualified people in each field we concentrate on customer satisfaction.
Get in touch
Plandec limited
No reviews yet
Loft Conversion Company in Thamesmead
We are a medium-sized business catering for the Construction industry. With over 20 years experience, we specialise in Loft Conversions, Extensions and complete refurbishments. All trades are under our roof and a 10 year guarantee on workmanship.
Get in touch
Constructum Code Ltd
Rating: 4.2 out of 5
Loft Conversion Company in Thamesmead
****** Constructum Code building company ****** Constructum Code is a London construction company specialising in high-quality house extensions, loft conversions and commercial builds for private and business clients. As main contractors, we work with architects and interior designers to deliver projects through to final handover. Our focus is on build quality, precise execution and attention to detail. WE OFFER: *10 Year Guarantee* *Free Estimates* *Full Building Control Approved Installer* *Fully insured building service* Services Provided: Basement Conversion, Custom Build Homes, Home Renovation, House Extensions, Loft Conversion, Loft Restoration, New Home Build, Project Management, Concrete Construction, Concrete Repair
Get in touch
Latest review:
I ordered repairs from the Constructum Code company, I wanted to create a play area. The guys tried to select all the materials and work technologies to suit my budget. The tiles on the walls and floor were laid well. The work was completed efficiently and on time. I recommend this company...
Smart City Maintenance
No reviews yet
Loft Conversion Company in Thamesmead
Smart City Maintenance - Started in 2020 and we provide ourselves on our quality of work.
Get in touch
EU-RO TOP Ltd
No reviews yet
Loft Conversion Company in Thamesmead
We are a construction Company established in 2008. We have completed over 10,000 kitchens, bathrooms and void properties for various boroughs under the Decent Homes Programme as well as many other projects: loft conversions, drives paving, timber sheds, window installations and high end remodeling.
Get in touch

Top rated Loft Conversion Companies

Our Loft Conversion Companies in Thamesmead, are rated 5 out of 5 based on 5 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 Thamesmead?

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

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 Thamesmead loft conversion company.

Find a loft conversion company in Thamesmead 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 Thamesmead.

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 Thamesmead can view your job and register their interest.

Step 2: Review and compare Thamesmead 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 Thamesmead 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 Thamesmead 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 Thamesmead

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 Thamesmead?

A local loft conversion company in Thamesmead 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 Thamesmead 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 Thamesmead 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 Thamesmead

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 Thamesmead before agreeing to start the work.

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

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