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  • DANLEA CONSTRUCTION LTD Logo

    DANLEA CONSTRUCTION LTD

    10.00

    (18 reviews)
    Services & skills
    Builder
    Loft Conversions
    Partition Walls
    Garage Conversions
    Property Maintenance / Repair
    Call
  • DJF Loft Conversions Logo

    DJF Loft Conversions

    10.00

    (26 reviews)
    Services & skills
    Builder
    Loft Conversions
    General Building
    Extensions / Conversions
    Refurbishments
    Call
  • Future Build London Ltd Logo

    Future Build London Ltd

    10.00

    (101 reviews)
    Services & skills
    Builder
    Loft Conversions
    Insurance Claim Specialist
    Suspended Ceilings
    Extensions / Conversions
    Call
  • Services & skills
    Builder
    Loft Conversions
    Warehouse Racking
    Workshop Design / Construction
    Basement / Cellar Conversions
    Call
  • BUILDINGBANK Logo

    BUILDINGBANK

    10.00

    (3 reviews)
    Services & skills
    Builder
    Loft Conversions
    Emergency Builder Service
    Mastic Sealant
    Workshop Design / Construction
    Call
  • Services & skills
    Builder
    Loft Conversions
    Extensions / Conversions
    Demolition
    Concrete Garages
    Call

A loft conversion can be a great way to increase your home’s usable footprint – whether you plan to create an extra bedroom, a home office, or splash out on a home cinema.

However, structurally transforming your roof space into a whole new floor is one of the biggest home improvement projects you take on. It involves significant construction work. So, you'll want to hire right.

Here's everything you need to know about finding and hiring checked and reviewed loft conversion companies near you.

How to find loft conversion companies near you

1. Search your postcode

Enter your postcode in our search tool to browse the checked and reviewed loft conversion companies in your area.

2. Easily check and compare

View profiles, check qualifications and experience, and read customer reviews to create a shortlist of loft conversion companies.

3. Get in touch

Contact your chosen loft conversion specialist to discuss the job, request quotes, and arrange a site visit.

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loft conversion in progress

Why use Checkatrade to find loft conversion companies near me?

For an important structural conversion like this, you'll want to find a recommended loft conversion company to ensure the work is built to last and complies with building regulations.

Which is where Checkatrade comes in.

All the trades you see in our directory have passed our checks and are committed to meeting the Checkatrade Standard.

Find loft conversion companies in your area

How to grow a loft conversion business

What do loft conversion companies do?

From fitting structural beams to designing safe stair access, a loft conversion is a big job.

That’s why many homeowners choose to bring in a loft conversion company for a complete start-to-finish service. This typically includes:

  • Strengthening the existing structure – Reinforcing floor joists to handle the weight of a new living space

  • Installing steel beams (RSJs) – Providing crucial support for the new floor, walls, and roof

  • Rebuilding or reshaping the roof – This often means changing the pitch or adding dormers to create headroom

  • Adding stair access – Designing and fitting a staircase that meets building regulations and integrates with your layout

  • Upgrading insulation – Ensuring the space meets modern energy standards and keeps your home comfortable

  • Fitting windows or dormers – To bring in natural light and ventilation. A windowless loft conversion room isn’t classified as a habitable space, should you wish to sell

  • Installing electrics, plumbing, and heating – Turning the space into a fully functioning bedroom, office, or bathroom

  • Fire safety upgrades – Adding fire doors, smoke alarms, and escape routes in line with regulations

  • Final finishing touches – Plastering, flooring, and decorating to make the new space part of your home

Most full-service loft conversion packages will include all of the above as part of the quote, but not all. Make sure to double-check exactly what’s included in your quote.

loft conversion for office

How much does a loft conversion cost in the UK?

You can expect to pay somewhere in the region of £27,500 for a typical loft conversion with Velux windows, or around £50,000 for one with dormer windows.

That said, the cost of a loft conversion can vary hugely depending on:

  • The type of loft conversion you undertake

  • Its size

  • The existing roof structure

  • Whether you decide on Velux windows or a dormer

  • The finish

  • How long it takes

  • Your location

Our loft conversion cost guide breaks down what you can expect to pay for a loft conversion. Or give our loft conversion cost calculator a whirl.

Need a job estimate to help with budgeting?

Try our AI powered job estimate calculator

Is hiring a loft conversion specialist near me worth it?

A loft conversion isn’t a renovation project you can realistically undertake yourself (unless you've got some impressive building experience up your sleeve!).

For a high-quality loft conversion, you'll want to hire a loft conversion specialist with plenty of experience. Here's why:

  • Efficiency – If you're living onsite while most of the loft conversion building is underway, efficiency is a number one priority

  • Professional standard – Work is carried out to a high standard, giving it the best possible chance of adding value to your home

  • Expertise – Experienced loft conversion builders will guide you through the necessary steps to make sure your loft conversion passes the building regulations approval. This is essential if you plan to sell your home in the future

Top Tip

Wondering if it is cheaper to do a loft conversion or move house? Our move or improve expert guide helps you weigh up the options.

Loft conversion ideas

Questions to ask before hiring a loft conversion company

Before a loft conversion company gets the green light, ask these questions to make sure you’re hiring right:

1. What insurance do you have?

A loft conversion is a big construction project, so the right insurance is essential. Make sure your builder has:

  • Public liability insurance – Protects you if something goes wrong

  • Up-to-date cover – Always check that policies are current

  • Approval from your home insurer – Confirm your building insurance provider is happy with the level of cover

2. Do you offer a guarantee or warranty on your work?

Always ask about:

  • Guarantees – What’s covered and for how long?

  • Warranties – Are both materials and workmanship included?

3. Can you show me examples of your work?

Examples of previous work are the best way to get a steer on a builder’s professionalism and experience. Ask to see:

  • Photos of past loft conversions

  • Online reviews for honest customer feedback

Top Tip

Check out the profile pages of Checkatrade members for verified reviews and up-to-date photos of their previous projects.

4. Do you offer a full-service package?

Most full-service loft conversion companies include insulation, plumbing and electrics as part of the installation – meaning you don't need to liaise with lots of different trades yourself.

Meanwhile, some loft conversion companies may only offer a structural shell, leaving you to organise all the finishing elements yourself, such as flooring and electrics.

It's important to be clear what's included, to avoid costly surprises later down the line.

5. What’s your availability?

Top loft conversion companies are often booked up months, if not years, in advance.

If you have a timeline in mind, start your search early so you can choose the builder you really want, not just who’s available.

6. What permissions do we need?

Most loft conversions fall under Permitted Development, meaning planning permission isn’t required. But you will need permission if:

  • You’re altering the height or shape of your roof

  • You live in a listed building or conservation area

  • The project goes beyond the Permitted Development rules

Don’t forget:

  • Work affecting a shared (party) wall requires a Party Wall Notice and a written Party Wall Agreement with your neighbours

Experienced loft conversion companies can guide you through the entire process.

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loft conversion specialists near me

Your questions answered about loft conversion specialists near you

Does a loft conversion add value to your house?

Yes. A loft conversion can increase the value of your house by around 20%, according to Nationwide Building Society. Benefits include:

  • Adds extra storage space

  • Creates an additional bedroom or bathroom

  • Opens up views from the tallest part of your home

What is the average cost of a loft conversion?

The average cost of a 30m² loft conversion in the UK can range from £27,500 to £75,000 plus depending on the type you choose and several other variables.

What is the most expensive part of a loft conversion?

Adding dormers can be one of the most expensive parts of a loft conversion. So, if you’re on a budget, you can help to lower your costs by avoiding them if space allows. Similarly, fitting a bathroom in your loft conversion can vastly add to your costs.

Is my house suitable for a loft conversion?

Most lofts can be converted in one way or another. However, there are lots of different factors that will affect whether your house is suitable for a loft conversion, including:

  • The ceiling height

  • Your loft’s floor area

  • Whether there’s room to accommodate a staircase

  • The pitch of your roof

  • Whether your neighbours give their consent, where you share a party wall

  • Whether you own the freehold for your loft space

You’ll also have to consider whether a loft conversion will cost more than the value it will add to your house – and whether that matters to you.

How long does a loft conversion take?

A standard loft conversion on an average house in the UK will usually take around six to eight weeks. However, this timeframe will depend on a number of factors, such as the size of the loft, the finish of the conversion and the amount of labour involved.

Our guide to how long a loft conversion takes goes into more detail.

What lofts cannot be converted?

Although many lofts are suitable for conversion, not all homes can have a loft conversion. Reasons include:

  • The ridge height of your loft (if you have a low roof ridge height, you may need a roof lift loft conversion)

  • Any restrictions with roof alterations that apply to the building

  • If your home is located in a conservation area

To find out if your home is suitable for a loft conversion, speak to your local planning office or loft conversion companies in your area.

What is the 10-year rule for a loft conversion?

The 10-year rule for loft conversions means that if a loft has been used as living space without planning permission for over 10 years, the local authority usually can’t take enforcement action.

Homeowners can then apply for a Lawful Development Certificate to confirm its legal status, though this doesn’t replace building regulations approval.

Can I convert my loft myself?

Technically, yes, you can convert your loft yourself. But a loft conversion is a major structural project. It involves work on your roof, floors, insulation, electrics, and sometimes plumbing.

Without the right skills and qualifications, it’s risky and could end up costing more to fix.

Here are some final tips for finding recommended loft conversion companies in the UK:

  • Read reviews – Always check what other homeowners have to say about loft conversion companies covering your local area before you hire them

  • Get several quotes – We recommend getting at least three quotes from loft conversion specialists near you, to check you're getting a fair price

  • Use Checkatrade! – Our approved tradespeople have to pass up to 12 checks and are regularly reviewed to give you added peace of mind

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