Loft Conversion Companies in Plumstead

Name: Loft Conversion Company
Brand: MyBuilder
SKU: loft-conversion-company
Rating: 5 (9 reviews)

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Some of our top rated loft conversion companies in Plumstead

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Mario Services
Rating: 5 out of 5
Loft Conversion Company in Plumstead
Mario & Alex Construction LTD specialise in construction and building services, complete property refurbishment, house extensions and loft conversions. Provides unmatched customer service. Our commitment to small,hudge integrity, providing the highest value and satisfied customers, has been the ingredient that has fueled our growth from the beginning. We ensure that all our work is professionally managed so that the result is of outstanding quality, cost-effective.
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Latest review:
Bathroom Fitting- 20 Jan 2023
We highly recommend Mario & his team. They fitted a new kitchen & bathroom to a really high standard within a short, timeframe. They work hard, are friendly, professional & honest, my neighbour even commented on how considerate they were! Upon first meeting Mario we were impressed by how organised he was. He arrived on time with the description we’d posted on my builder & went through it methodically. We had A LOT of questions! He answered all of them & didn’t rush us. We received a competitive quote within a day as promised. It included everything we discussed & he quickly answered our follow up questions. We wanted an accurate idea of the cost of electrical work & Mario arranged for his electrician to come & inspect/quote before we’d appointed Mario the job. Our kitchen & bathroom is complicated, with lots of difficult angles. Damp, unlevel floor, unlevel windows, a low ceiling were uncovered in the bathroom. Mario did well to identify solutions, giving us expert advice. Pipes were neatly chased into the wall. Underfloor heating & LVT, tiling, grouting & painting all done to a very professional finish. He kept us informed of progress, checked our preferences & was patient when we had supply delays, finding ways to ensure the job finished on time enabling us to move from our temporary accommodation back home in time for Christmas. He promptly fixed some minor issues after the job finished. We highly recommend Mario & would use him again.
Cornel Construction Services
Rating: 5 out of 5
Loft Conversion Company in Plumstead
Hi there, my name is Cornel,I am a self employed general builder based in Bromley. I have a professional team able to cover all aspect of building. I pride myself in delivering the best standard of both build and customer service and I will work with you from start to finish to make sure you achieve the very best outcome. References are available from my many satisfied customers.
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Latest review:
Extensions- 16 Nov 2019
I was very lucky to find Cornel for my building work. His team were extremely hard working, efficient and respectful and the work was done very quickly and to a high standard. Most estimates for the build time were between 8 and 10 weeks - my work was fully complete in 6 weeks. Building control passed all stages of the work without any issues. He is equally proficient at the plumbing, electrics, flooring, tiling and decorating as the heavy building work, even restoring my garden so that it looked better than it did before the build. I am in a conservation area with close neighbours on all sides and Cornel minimised the disruption as much as possible and made efforts to keep everyone happy. His attitude to overcome problems and make sure that in the end you are a happy client drives his approach to the work. I had 10 builders quote for the job and Cornels quote was very competitive and the final costs were exactly as we had agreed. I had spoken to a number of his previous clients before going ahead and they were all very impressed with his work and had good experiences. It can be a difficult decision to choose a builder if you have no previous experience and given the potential for things to go wrong - but we made the right choice. I wouldn't hesitate in recommending Cornel and his team.
HS Plumbing and heating
Rating: 5 out of 5
Loft Conversion Company in Plumstead
In brief HS Plumbing & Heating provide a full home renovation service from a full and neat Plumbing &Heating ,We also specialise in carpentry &joinery,kitchen fitter open space,loft conversion,glass partition,glass panels for stairs,build up new stairs on site if necessary, doors ect;Also All initial atends for quotation are free,With many successful years in the trade customer satisfaction is assured we guarantee high quality finish job provided.
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Latest review:
Plumbing- 9 Dec 2021
Hysni arrived, early which was good. Diagnosed the problem, fixed it without any hassle and now there has been no drip for a week. All I could ask for! Thank you.
MYD Studio London Limited
Rating: 5 out of 5
Loft Conversion Company in Plumstead
MYD STUDIO London limited is a Design-Led Architectural and Planning consultancy focusing on New Build ,Extensions, Loft Conversions, Change of use and Flat conversion projects in different Boroughs in London. Whether you are looking to increase the size of your home, make the most of its current size through an internal alteration, or gain planning permission in order to increase its value before selling, we will help you to produce a planning application to meet all of your expectations.
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Latest review:
Extensions- 6 Aug 2022
Majid has been great in producing drawings for our rear extension. He's also helped explain the whole build process to us from design, building inspection, and building. We received our drawings in under 10 days from the initial consultation and site visit. Majid was accomodating and was able to visit the site on weekends for the initial consultation. Always a pleasure to deal with and has been easy to reach over the phone or email. Would highly recommend Maji and MYD Studio London to anyone looking for an architect.
Top Finish Ltd
Rating: 4.6 out of 5
Loft Conversion Company in Plumstead
We are a property refurbishment specialists with a wealth of experience in house extensions,basements,loft conversions,bathrooms kitchens and much more. We have built a reputation on the basis of providing clients with a quality service that is combined with excellent value for money. .
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Latest review:
Loft Conversion- 2 Jul 2016
Top finish were ultimately hired to conduct this work. There was admittedly some job creep in this project. Alan came round and discussed our intentions and suggested a possible route forward. An architect (Red Squirrel Architects) was independently retained by us to work with the Top Finish team to deliver a Dormer conversion reorganization and significant structural works for a side return extension and installation of a new kitchen (13 steels were inserted and a sewer had to be bridge over, with permission) The job was completed to a high specification, particularly given some of the problems thrown at the team when dealing with a 150yr old property. I think it's important to understand that when undertaking jobs of this scale, and if you are planning to live in the property as we did, then you are effectively living with the team you chose. To that avail- ALL of the top finish team were always considerate and a pleasure to be around and happy to fix any concerns rapidly as required. I wish Alan and his team all the best going forward and I would recommend meeting Alan and including him in your shortlist for any job - large or small.
Rares Cristian Lupu
Rating: 5 out of 5
Loft Conversion Company in Plumstead
I am a sole trader working for myself for more than 10 years. Family experience over 35 years. I deliver all services from painting, dexorating, bathrooms, kitchens, full house builds, loft conversions, rear / side extensions, landscaping, plastering and plumbing/electric. Reliable and respectful to all my clients!
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Latest review:
had an excellent experience working with Cristian on my bathroom project. From start to finish, his work exceeded all expectations. Cristian was professional, attentive to my needs, and incredibly detail-oriented. His craftsmanship and commitment to quality were evident in every aspect of the project, and he transformed the space beautifully. He kept communication clear and made sure everything was completed on time and according to my vision. I am thrilled with the results and highly recommend his services.
Patrick JR
Rating: 5 out of 5
Loft Conversion Company in Plumstead
Experienced Tradesman who enjoys providing a friendly and reliable service to customers. No job too small from Demolition and groundwork’s to first fix of structures to second fix finishing jobs such as hanging TVs and mirrors. Please get in touch for a no obligation quote and estimated timescale.
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Latest review:
Handyman- 4 Aug 2021
Great during the pandemic, able to change appointment due to isolation. Job completed in a timely manner and work space left clean. Job completed a month ago and still perfect. Thanks
V&R construction (LON) ltd
Rating: 5 out of 5
Loft Conversion Company in Plumstead
Hi m singh m doing construction work from 2012. From2012 /2017 I learn work as labourers and helper. From 2017 I start my first job full house renovation and loft conversion. I have good team and we finish job with in agree d time. I stay very honest with my customer. Pls give us chance to renovate ur dream house .
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Latest review:
Bathroom Fitting- 16 Jul 2026
They went above and beyond, helping with another issue in the bathroom as well. Great price for the amount of work done in the day. Exactly as asked and more. Thank you
KBL Construction Service Ltd
Rating: 4.7 out of 5
Loft Conversion Company in Plumstead
we have 10+ years of experience and provide high quality of workmanship in every aspect of building services from refurbishments to loft conversion and extension.we are professional team of skilled builders, tillers, bricklayer, carpenter, painter and provide services for plumbing and electric work.
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Latest review:
Conversions - General- 5 May 2025
Zak and his cousin began working on our project on the 10th of March and delivered everything on time. From start to finish, they were consistent, meticulous, and completely committed to bringing my vision to life. They worked collaboratively with me throughout the process, always open to ideas and focused on achieving the best outcome. Together, they handled everything — brickwork, building, tiling, rendering, plumbing, and electrical — with a high level of skill and professionalism. The quality of their work speaks for itself, and I’ve already recommended them to others. We are truly grateful for all the hard work they put in and couldn’t be more pleased with the final result.
Inspire Construction Solution LTD
Rating: 5 out of 5
Loft Conversion Company in Plumstead
We specialise in Loft conversion, House extension and all kinds of buildings works
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Latest review:
We did a lot of research ahead of our loft build, and spoke to customers of the companies we looked at. We were impressed with Toma and her team from the outset, especially in terms of clarity and communication. We sat down with the project team at the start and walked through the week-by-week plan for our build, then a whatsapp group and weekly meets meant we knew exactly what was happening throughout. Our endless questions were responded to swiftly. Additional optional trade-ups (eg top-hung windows, larger bathroom window etc) were discussed and explained with context, sound advice (and clear pricing where nec) but always still optional. Toma's communication with the teams also seemed strong and continuous, with materials always arriving in time and ahead of when needed, no down-days etc - and importantly, the teams all seemed happy and were just lovely people to have around. I realise with hindsight too that the team's care and workmanship really put them a cut above many others in my area and the project remained on schedule. I wouldn't hesitate to recommend ICS for the whole package and in fact we've also chosen to use them again for a kitchen extension.
Don Buildings Ltd
Rating: 4.9 out of 5
Loft Conversion Company in Plumstead
Don Buildings Ltd Client satisfaction is our primary concern and goal. If you are looking for top quality efficient and professional service, so look no further Don Buildings Ltd is here for you For and on behalf of Don Buildings Ltd, Donatas
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Latest review:
Loft Conversion- 25 Aug 2015
Don did a great job on my loft extension. His team were professional and the work was completed to a high standard
Fm building contractors ltd
Rating: 5 out of 5
Loft Conversion Company in Plumstead
FM Building Contractors Ltd is London based builders HOME EXTENSIONS PROFESSIONAL BUILDING & BRICKWORK SERVICES Providing a range of building services from walls and block paving, extensions and conversions to complete new builds, we only work with highly trusted and experienced tradesmen registered with the appropriate bodies. FM Building Contractors Ltd is proud to have earned a reputation for fast and efficient turnaround, reliability, transparency and professionalism.
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Latest review:
Groundwork & Foundations- 19 Jul 2024
Great job very efficient will consider for further larger projects
POLISH DECORATING SERVICES LTD
Rating: 4.9 out of 5
Loft Conversion Company in Plumstead
We are not the cheapest but we are Master Builders experienced in all aspects of building works including bespoke services. Dedicated team of craftsmen always deliver jobs to the highest standards. We provide full certification for any gas or electrical works. City&Guilds- N.V.Q., P.A.S.M.A. and I.P.A.F. Over 15 years of experience in the UK.
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Latest review:
Extensions- 11 May 2018
After a rogue builder left me with 18 (eighteen) structural issues. Lez and his crew came in transformed my failed extension into a masterpiece. All aspects of the job was done to the highest quality and utmost care and attention to detail was shown to building control needs. They cleaned up after every day and made sure the house was habitable, as I had to live there. Every aspect of the build, from the carpentry, plastering and tiling was first class and their recommend electrician and plumbers were from the same stock. Total professionals. My only regret is that I did not use this builder the first time. The prices were reasonable and even building control had good word to say about their work. Thanks Lez
Jagdeep Singh
Rating: 5 out of 5
Loft Conversion Company in Plumstead
Hi,contact us for any type of building work
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Latest review:
Extensions- 8 Dec 2023
I recently had the pleasure of accepting Jagdeep on a substantial renovation project. Initially, I was a bit apprehensive as there were no existing reviews to gauge his work. However, after seeing some of his previous projects, I decided to take a leap of faith - and it turned out to be the best decision I've ever made. Jagdeep's approach to our project, which started merely as a rear extension and shower room, was nothing short of exceptional. His remarkable craftsmanship and attention to detail soon convinced me and my wife to extend the scope to a full renovation. Throughout the process, Jagdeep and his team displayed an extraordinary level of skill, professionalism, hard work as well as trust (very rare these days). No task was too challenging, and his willingness to prioritise our needs and provide thoughtful advice was truly comforting. It's rare to find a builder with such dedication and expertise. Jagdeep is undoubtedly one of the best builders I have encountered. My heartfelt thanks to Jagdeep and his team for their outstanding work. Rest assured, for any future projects, he will be the first person I call. Thank you, Jagdeep, for turning our vision into reality, which more than exceeded our expectations!
CM Fixing Limited
Rating: 5 out of 5
Loft Conversion Company in Plumstead
Specialized in a vast number of Façade Installations as:Façades installation (installation of different types of cladding, curtain wall system, single and double glazed system); Shop fronts, atriums, GRC and metal panels facades, high performance rainscreen cladding system, canopies,balustrades, louvres, vents, privacy screens, etc.); Maintenance of glazing systems; Glass replacements; Structural Glazing, Structural Silicone, Suspended Ceiling,Terracotta Rainscreen, Mastic Works.
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Latest review:
Windows & Doors (uPVC & Metal)- 25 Apr 2026
We found Marian from CM Fixing after the suppliers recommended fitter proved unresponsive and we are so pleased we did. We have found dealing with Marian an absolute pleasure - really responsive communication, excellent price and he has done a fantastic job for us today. They arrived promptly at 8am and fitted our new doors with no fuss and lots of care and it’s all looking amazing. I would recommend Marian and his team to anyone considering an installation.
v. ghinda
Rating: 4.9 out of 5
Loft Conversion Company in Plumstead
Established 12 years ago we are a professional team specialised in Construction as Extension, Loft Conversion, Painting and Decorations, Carpentry and Joinery, Kitchen Fittings, Bathrooms, Flooring, Plastering, Underfloor Heatings, Electricity: 6 years registration with NICEIC, WRAS. We are happy when our customers are happy. And it can be seen from our feedback, and we'll like to Thanks them.
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Latest review:
Extensions- 21 Jan 2023
I’m a bit late adding this review but Vasile just reminded me. We are really happy with the home that Vasile built for us. It’s a Victorian terrace over 3 floors that needed a full renovation including electrical re-wiring, new plumbing etc plus a gf side and rear extension plus a loft conversion. Vasile and his team worked really hard to get us the finish we wanted. He always was on-hand to solve problems from building control to water pressure. He was always very friendly to work with and extremely respectful. We always got the impression that he wants to make his customers happy and takes pride in his work. Because of Covid and issues with materials and the labour market, our job took longer than expected but I think this was really outside of anyone’s control. We now have a really beautiful house that we love living in and it’s in no small part thanks to Vasile. I have recommended Vasile to friends already and have shown some of his potential customers round our house. They were always really impressed and inspired.

Top rated Loft Conversion Companies

Our Loft Conversion Companies in Plumstead, are rated 5 out of 5 based on 9 reviews from customers like you.

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What services are offered by loft conversion companies in Plumstead?

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

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 Plumstead loft conversion company.

Find a loft conversion company in Plumstead 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 Plumstead.

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 Plumstead can view your job and register their interest.

Step 2: Review and compare Plumstead 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 Plumstead 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 Plumstead 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 Plumstead

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 Plumstead?

A local loft conversion company in Plumstead 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 Plumstead 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 Plumstead 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 Plumstead

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 Plumstead before agreeing to start the work.

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

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