Describe your job with details to view a tailored list of tradespeople.
Post your job

Loft Conversion Companies in West Sussex

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

How it works

Post your job for free

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

Tradespeople respond

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

Review profiles and choose

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 West Sussex

219 Results

Sort by:

  • Loft Conversion Company in West Sussex

    Covering all West & East Sussex and specialised in all type of renovations indoor and outdoor We are competitive and reliable.

    Get in touch
  • Loft Conversion Company in West Sussex

    At MCB Contracting, we take pride in delivering high-quality building, refurbishment, and maintenance services across the South East. With years of hands-on experience in both residential and commercial projects, we bring a professional, detail-driven approach to every job — from small repairs to full property refurbishments. Our team covers all aspects of construction, including: Home extensions & conversions Full refurbishments & fit-outs Brickwork, blockwork & structural alterations Kitchens, bathrooms & flooring Plastering, painting & finishing trades We’re known for our reliability, communication, and quality of workmanship. Every project is managed with care, clear timelines, and transparent pricing — ensuring you get results you can trust. Whether you’re updating your home, improving rental property, or managing a commercial project, MCB Contracting delivers the standard of work you’d expect from a professional, accredited contractor — on time and on budget.

    Get in touch
  • Loft Conversion Company in West Sussex

    I am a time served carpenter. I take pride in my work and i am tidy and considerate to my clients. I am proficient in all aspects from pitching roofs to small jobs.

    Get in touch
  • Loft Conversion Company in West Sussex

    SWR Building covers everything the customer needs from small maintenance jobs to complete renovations, extensions and loft conversions. I have been in the building industry since I left school in 1986 when I done a four year plumbing apprenticeship, since then I worked for a kitchen and bathroom specialist, then worked for a building company specialising in extensions and loft conversions before starting my own buisness in 1998.

    Get in touch
  • Loft Conversion Company in West Sussex

    At BG Roofing and Building Sussex, we transform unused attic spaces into stunning, functional living areas that add significant value to your home. Our loft extension specialists combine architectural vision with precise craftsmanship to maximize every square meter while maintaining your home's character. Unlike standard builders, we handle the entire process—from initial designs and planning permissions to structural calculations and final decorative touches. Our team has particular expertise with period properties and listed buildings throughout Sussex, ensuring sympathetic conversions that respect architectural heritage. Each project receives our signature attention to detail, with dedicated project management ensuring minimal disruption to your daily life. We pride ourselves on transparent pricing, adherence to timelines, and creating loft spaces that exceed expectations. Whether you're seeking an additional bedroom, home office, or luxury master suite with en-suite facilities, we deliver beautiful, light-filled spaces built to the highest standards. Contact us for a comprehensive consultation to unlock your home's hidden potential.

    Get in touch
  • Loft Conversion Company in West Sussex

    We are a carpentry and construction company specialising in high-quality building and finishing work across residential and commercial projects. Our services cover all aspects of carpentry and general construction, including first-fix and second-fix carpentry, full refurbishments, extensions, and new builds. A key part of our work is kitchen fitting, where we install complete kitchens from start to finish. This includes unit installation, worktops, appliances, and detailed finishing, working closely with other trades to ensure a high-quality, functional, and visually impressive result. Our projects range from initial structural work and framing through to final finishes such as roofing, flooring, joinery, bespoke woodwork, and fitted interiors. We take pride in delivering work that is safe, durable, and completed to a high standard, always in line with drawings, specifications, and client expectations. Attention to detail, pride in workmanship, and a strong commitment to health and safety are at the core of everything we do. We value reliability, teamwork, and a professional approach on every site.

    Get in touch
  • Loft Conversion Company in West Sussex

    welcome to worthing renovations, your local renovation and construction firm dedicated to completing your home projects efficiently and to the highest standard. we work in West Sussex and surrounding counties. There isn't any projects we cant complete with our teams covering all aspects of construction with over 6 years of experience. please feel free to contact us today.

    Get in touch
  • Loft Conversion Company in West Sussex

    A combined 40 year experience within the building trade. Specialising in kitchen fitting and all aspects of carpentry and all internal and external plastering and rendering.

    Get in touch
  • Loft Conversion Company in West Sussex

    Professional and competent carpenter builder with extensive experience in all aspects of trade specialising in: loft conversion, general and bespoke carpentry work, kitchen fitting, all types of flooring, underfloor heating installation, painting, doors, windows, roofing. From small to extensive projects and complete renovations I focus on quality and client satisfaction. I strive for excellence in all I do. Please contact me for an estimate today.

    Get in touch
  • Loft Conversion Company in West Sussex

    Jm building and carpentry Having worked building new homes and full refurbishments for the last 5-6 years with a portfolio that can be viewed online, along with other extensions and ground works, we are looking to expand with are vast knowledge of structure and building right down to the fine details that matter to the customers from start to finish Please view are reviews and photos on TrustATrader

    Get in touch
  • Loft Conversion Company in West Sussex

    Welcome to Klyra – Self-Build Construction Management Experts At Klyra, we empower homeowners to take control of their own building projects with expert virtual support. Whether you're planning a home extension, loft conversion, or full renovation, we provide step-by-step guidance in budgeting, contractor coordination, project planning, and quality control. Our clients typically save up to 20% on build costs by managing their own project with our expert assistance—without the need for a traditional project manager. With over 20 years of experience in the construction industry, we’ve helped countless homeowners navigate their projects smoothly, confidently, and cost-effectively. If you want to stay in charge of your build while avoiding costly mistakes, we’re here to guide you every step of the way. Contact us today to learn more or book a free consultation.

    Get in touch
  • We offer residential construction and renovation services for homes across Surrey and surrounding areas. High commitment,excellent organisation skills and efficiency ensure increased productivity = saving to any budget. Our company specializes in new builds,loft conversions, house extensions, renovations,landscaping and many other aspects of construction. We are expert in making obsolete homes into a sophisticated and state of the art designs.

    Get in touch
  • Loft Conversion Company in West Sussex

    JACK RAFTER LTD Is a carpentry based company based in Hove, we cover all aspects of the construction industry with a team of fully qualified professionals ready to deliver high quality workmanship. With transparent quotes and competitive costs along with a programme for every project, Jack Rafter will cover all aspects from start to completion.

    Get in touch
  • Ambassador Building Company We are a family-run building company covering all aspects of construction, including extensions, kitchens, bathrooms, roofing and damp proofing. With over 80 years of combined experience, we deliver reliable, high-quality workmanship with a clean and professional approach on every job. We understand the importance of clear communication, meeting deadlines and leaving a tidy finish our customers are happy with. No matter the size of the project, we provide a complete, stress-free service from start to finish.

    Get in touch
  • Loft Conversion Company in West Sussex

    With over 35 years of hands on experience in the building trade, specialising in loft conversions, I have worked on a range of residential projects and transformations. I bring a wealth of knowledge within the trade and value the importance of reliability and friendliness with all clients.

    Get in touch
  • Loft Conversion Company in West Sussex

    I'm a self employed Carpenter that has 5 years experience in loft conversions, renovations, new builds and most aspects of 1st and 2nd fix carpentry. I work to a high standard and have own tools. Polite. Professional and hard working. Have transport to get to jobs.

    Get in touch

5

Top rated Loft Conversion Companies

Our Loft Conversion Companies in West Sussex, are rated 5 out of 5 based on 2 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 West Sussex?

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

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 West Sussex loft conversion company.

Find a loft conversion company in West Sussex 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 West Sussex.

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 West Sussex can view your job and register their interest.

Step 2: Review and compare West Sussex 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 West Sussex 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 West Sussex 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 West Sussex

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 West Sussex?

A local loft conversion company in West Sussex 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 West Sussex 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 West Sussex 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 West Sussex

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 West Sussex before agreeing to start the work.

Do I need planning permission for a loft conversion in West Sussex?

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

Other tradespeople in West Sussex

Cities