Loft Conversion Companies in Harpenden

Name: Loft Conversion Company
Brand: MyBuilder
SKU: loft-conversion-company
Rating: 5 (4 reviews)

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Some of our top rated loft conversion companies in Harpenden

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NKN HOME CREATIONS LIMITED
Rating: 5 out of 5
Loft Conversion Company in Harpenden
We are a reliable and experienced construction company committed to delivering high-quality workmanship with care and attention to detail. We specialize in home extensions, refurbishments, new builds, and loft conversions, ensuring every project is completed safely, professionally, and to the highest standards.
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Latest review:
Plastering- 2 Feb 2026
Happy with work, left job site tidy and clean. Will be happy to use company for future work. Thanks
Golden Eagle roofing and building contractors
No reviews yet
Loft Conversion Company in Harpenden
Golden Eagle Roofing and Building Contractors prides itself on integrity, transparency, and a professional approach to every project, no matter the size. Our team of skilled professionals works closely with clients from the initial concept and planning stages to final execution, ensuring a seamless and stress-free construction process. We use only the finest materials and latest techniques to guarantee durable, high-quality results that stand the test of time. Why Choose Us? Experienced Professionals: Years of industry experience and a wealth of knowledge brought to every project. Quality Craftsmanship: A dedication to upholding the highest standards of workmanship and using quality materials. Customer-Focused Approach: Committed to understanding unique requirements and exceeding expectations with open communication and transparency. Licensed & Insured: For your complete peace of mind, all work is performed by a properly insured and licensed team. For your next roofing or building project, contact Golden Eagle Roofing and Building Contractors to discuss your requirements and discover the difference that quality and dedication can make.
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Lowe cost home Improvements
No reviews yet
Loft Conversion Company in Harpenden
Welcome to Lowe Cost Home Improvements Ltd Supplier and Installer of the latest 'A' Energy Rated uPVC, Aluminium and timber Windows, Doors and Conservatories. We are a trusted local company with over 30 years’ experience in the home improvement market. Home improvements works includes porches, decking, cladding and minor alterations. Replacement Windows,Doors, Conservatories,Roofline and Guttering ,misted or broken down Double Glazed Sealed Units and Double-Glazing repairs.
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RM Reid Ltd
Rating: 5 out of 5
Loft Conversion Company in Harpenden
My name is Ricky and I am the Director of RM Reid ltd. I have over 25 years experience with many trades. Between myself and my employees we have a vast amount of skills/knowledge within the construction industry. I believe you are only as good as your last job and seeing as I have 100% feedback I believe my reputation speaks for itself. We are Trustmark and chas accredited. Fully insured with warrantys available on major projects
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Latest review:
Restoration & Refurbishment- 27 Mar 2022
Ricky Reid I was looking for a company who could help me with a light refurbishment (kitchen, bathroom and full decoration) of a one bedroom flat in south west London to be ready for rental within 15 days. I posted my ad request on mybuilder.com and a few companies contacted me. Ricky Reid, was the third one I met and eventually the one I chose. Why? R. was straight forward, no gimmicks and did his best to understand what my needs were from day one. Especially when my vision at the start wasn’t that clear. Him and his team delivered within the time frame agreed as well as within the quote given plus a few extras that hadn’t been considered at the start of the project. He was always available for questions or clarifications needed over the phone at any time! A rare quality in itself in the building world. If there was anything that could be improved, this would be clarifying certain jobs that were on the quote (and I mean specifically what they exactly covered) from the start to avoid stingy or unexpected surprises cost wise. However this isn’t Ricky’s fault and I take my full responsibility as I should have done my homework before hand. Overall satisfied with the result and I would certainly contact Ricky and his team for my next future projects and so should you reading this review. Thank you Ricky and all the best in your company venture.
Harrison cook
Rating: 5 out of 5
Loft Conversion Company in Harpenden
Family run buisness All aspects of roofing Offering a 10 year garentee on all new roofs.
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Latest review:
Harrison completed the job to a high standard. He worked late to ensure the roof was left water tight overnight. The site was left clean and tidy.
Torrent Plumbing & Heating Solution Limited
Rating: 5 out of 5
Loft Conversion Company in Harpenden
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.
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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.
Ava Constructions & Decors
Rating: 4.9 out of 5
Loft Conversion Company in Harpenden
Ava Constructions & Decors Ltd is a UK-based construction and renovation company committed to delivering top-quality craftsmanship and reliable project management. We specialise in full refurbishments, extensions, bathroom and kitchen installations, and commercial fit-outs — always tailored to the client’s vision and delivered to the highest UK building standards. With a keen focus on transparency, timelines, and customer satisfaction, Ava Constructions has earned the trust of homeowners, investors, and developers alike. Punctuality and completion of work on time are a priority .Our team always respect the client wishes and work with them to achieve the best possible results to their satisfaction. Thank you in advance
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Latest review:
Extensions- 16 Apr 2026
I would not recommend this builder based on my experience. Instead of using crushed concrete they used soil to fill the house flooring for underfloor heating. 1 The project suffered from poor communication, repeated delays, and a lack of clarity around responsibilities. There were serious issues with the foundation works, which failed Building Control inspection and now require remedial engineering input before works can proceed. The site was also left incomplete and not in an acceptable condition. Despite substantial payments being made, key documentation, technical responses, and follow-through were lacking, leaving me to resolve major compliance and structural issues independently. My experience has resulted in delay, additional cost, and considerable stress. I would strongly advise others to ensure there is a detailed written contract, clear scope of works, and defined accountability
Keystone construction uk
No reviews yet
Loft Conversion Company in Harpenden
I have 30 years experience in the building industry. I specialise in all aspects of carpentry and joinery and building works.
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Briggsys carpentry services
Rating: 5 out of 5
Loft Conversion Company in Harpenden
At briggsy's carpentry and building services ltd we have all the trades you may need for your project from bricklayers to carpenters to electricians, plumbers etc, over the years ive built a great well trusted team and have many years of experience in construction. With an nvq level 6 in construction site management and a smsts qualification im used to running building sites and project managing jobs as ive done it for about 17 years i also have an nvq level 3 in advanced carpentry and a level 2 in slinging and signalling a crane so ive had experience all over. when we take on a project i ensure the customers happy all the way by checking in regularly and making sure works are going to plan. weve got a very good reputation and many good references at hand if requested from previous clients. good communiation with clients and high quality workmanship is our main advantage which we think is very important in the building trade. we look forward to working along side you thanks chris (director)
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Latest review:
Carpentry- 8 Jun 2021
Chris has been excellent right the way through my project, excellent communication and attention to detail. I highly recommend Chris and would definitely employ him again!
SHIVAY DEVELOPMENTS LTD
Rating: 5 out of 5
Loft Conversion Company in Harpenden
From Concepts to Creations, Shivay Developments Ltd has combined experience of over 15 years in Construction trade. Our team consist Expert Tradesmen and Experienced Project Managers with a single point of responsibility and accountability throughout the construction process.
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Latest review:
Loft Conversion- 3 May 2020
Happy with the work completed. Resolved any issues quickly. Would definitely use again.
PB
No reviews yet
Loft Conversion Company in Harpenden
Sole trader
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Branwhite Builders Ltd
No reviews yet
Loft Conversion Company in Harpenden
Branwhite Builders has over 15 years experience in the construction industry undertaking anything from extensions, renovations, garage/loft conversions to the smaller jobs for example bathroom/kitchen refurbishments. We pride ourselves on quality workmanship with a friendly and approachable manner to allow our customers the best result.
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SS ROOFING SPECIALIST LIMITED
Rating: 5 out of 5
Loft Conversion Company in Harpenden
At SS Roofing Specialists LTD, we provide professional roofing and building services across all over the UK. Whether you require a full re-roof, a small roof repair, flat roofing , Chimney repair, Gutter installation, Pointing ,our experienced team is ready to help. As fully insured company, we give our clients confidence that their property is protected throughout the process. From the initial consultation to the final handover, we take pride in delivering an efficient, professional and approachable service. At SS Roofing Specialists Ltd, we believe in building lasting relationships through exceptional craftsmanship and dedicated service. Your satisfaction is our top priority, and we aim to exceed your expectations on every project.
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Latest review:
Roofing (Pitched)- 19 May 2026
Quick and came round same day. Unfortunately one of the jobs they did on the roof was not done properly and it’s still leaking.
SM10 Studio Architecture
No reviews yet
Loft Conversion Company in Harpenden
We are a refreshing and talented team based on the outskirts of central London. We are truly passionate about buildings and are happiest when designing them. We pride ourselves in adopting a fresh approach and our skills extend to designing all types of building. We believe in providing tailored solutions for each and every project and ensure we maintain communication with our clients throughout the process. We offer a bespoke service ranging from planning and building regulations
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Camp & Co Developments Limited
No reviews yet
Loft Conversion Company in Harpenden
Camp & Co Developments - Luxury Contracting Services Welcome to Camp & Co. Developments’ Luxury Contracting Services. We specialize in high-end renovations and bespoke home builds, delivering unparalleled quality and sophistication. Our expert team collaborates with top architects and designers to transform luxury residences and create custom homes that reflect your unique vision and lifestyle. Services Offered: At Camp & Co. Developments, we offer a comprehensive range of services to meet all your construction and renovation needs. Our expert team is dedicated to delivering high-quality craftsmanship and exceptional service in every project. Our services include: - New Builds: From the ground up, we create bespoke homes tailored to your specifications. - Extensions: Expanding your living space with seamless integrations to your existing property. - Renovations: Transforming your current space to meet modern standards and aesthetics. - Refurbishments: Revitalizing older properties with meticulous attention to detail. - Loft Conversions: Maximizing the potential of your attic space. We offer Free consultations to all our prospective clients to asses your requirements and goals.
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Jewel roofing & building
No reviews yet
Loft Conversion Company in Harpenden
We cover all roofing general building works decorating plumbing carpentry kitchen and bathroom renovations at a competitive price. Customer satisfaction is all we aim for. Free quotations for any customer
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Top rated Loft Conversion Companies

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

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What services are offered by loft conversion companies in Harpenden?

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

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 Harpenden loft conversion company.

Find a loft conversion company in Harpenden 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 Harpenden.

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 Harpenden can view your job and register their interest.

Step 2: Review and compare Harpenden 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 Harpenden 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 Harpenden 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 Harpenden

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 Harpenden?

A local loft conversion company in Harpenden 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 Harpenden 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 Harpenden 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 Harpenden

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 Harpenden before agreeing to start the work.

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

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