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Verified Pro
Hello, my name is Jerry. I own a company Newport drives and patios been doing this 10 years now installing block paving ta...
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J & D Home Improvements

0 review(s)
Offers services in CARDIFF
Hi at j&D home improvements we take pride in our work to make satisfied customers All work in fully guaranteed Ful...
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I have over 24 years of experience in the trade . I am fully insured and although I have never had to use it , it is there...
Verified Pro

Central driveways

0 review(s)
Offers services in CARDIFF
Central driveways design long lasting home improvements weather its resinbound, paving driveways, patios , natural stone ,...

Recent Builder Enquiries

09 Feb

House Extensions | Single Storey

Cardiff - CF14

Enquiry from: Colin C

Start Date: Immediate

Single storey extension with flat roof to our bungalow. Extension to be 5m wide x 4m and we are thinking build material for walls to be spa panel construction. Will need to remove existing conservator...

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23 Oct

Conversion | Garage

Cardiff - CF14

Enquiry from: Sami W

Start Date: Immediate

i need to convert an integral garage into living space , garage is 2.5 meter wide and 5 meter long

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18 Sep

Conversion | Garage

Cardiff - CF23

Enquiry from: Folabomi P

Start Date: Immediate

garage conversation to a bedroom with ensuite and living area. storage in the level above. existing sliding door, songle door and window exist so garage door would ideally be removed. to be used as a ...

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15 Sep

Building work | General

Cardiff - CF24

Enquiry from: Rhys H

Start Date: Immediate

A base to be constructed for a greenhouse to be situated on at an allotment plot,

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10 Sep

Building work | Bricklaying

Cardiff - CF24

Enquiry from: Rhys H

Start Date: Immediate

I need a base for a greenhouse to be secured with. I have placed a deposit on a greenhouse house with a company called Rhino. Prior to it being built it needs a base to secure it to the ground. I nee...

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10 Sep

Building Work | Conservatory Base

Cardiff - CF24

Enquiry from: Rhys H

Start Date: Immediate

I need a base for a greenhouse to sit on.

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07 Sep

Building work | Wall Rendering

Cardiff - CF23

Enquiry from: Steven B

Start Date: Immediate

rendering repair and replacement. approximat*** mtrs how many walls are you looking to have rendered: 1 wall how many bedrooms do you have: 3-4 bedrooms property type: terrace are you the property own...

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23 May

Driveway Repair

Cardiff - CF23

Enquiry from: David W

Start Date: Immediate

Replace crumbling cement path

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12 Feb

Building work | General

Cardiff - CF24

Enquiry from: Robert T

Start Date: Immediate

Screed and level back room concrete floor approx size 4.49mt x 3mt

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30 Dec

Building work | Wall Rendering

Cardiff - CF23

Enquiry from: Ailsa C

Start Date: Immediate

End of terrace house, 3 sides. To be re-rendered. Due to damp in house.

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02 Nov

Driveway Repair

Cardiff - CF23

Enquiry from: Anne A

Start Date: Immediate

Paving blocks cleaned, parts of drive relayed as we have quite a few large puddles after heavy rain, sand relaid between blocks and blocks resealed.Also gate post rebuilt and area around tided up

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27 Oct

Insulation | External Wall

Cardiff - CF3

Enquiry from: Chris I

Start Date: Immediate

We're looking insulate and improve the look of our conservatory roof, we moved in around a year ago and it was neglected and leaks in one corner. We don't want an entire new roof as we plan to extend ...

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01 Sep

Building work | General

Cardiff - CF15

Enquiry from: Angela R

Start Date: Immediate

External wall insulation Lead

Chimney re-rendered and painted

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13 Apr

Building work | Wall Cladding

Cardiff - CF15

Enquiry from: Jennifer M

Start Date: Immediate

wall cladding external garden walls. 30ft x 3ft high and 30ft length x 4ft high are you the property owner: owner of the property property type: semi detached how many bedrooms do you have: 1-2 bedroo...

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12 Apr

Building work | Sound Proofing

Cardiff - CF10

Enquiry from: Ifan S

Start Date: Immediate

Under ceiling soundproofing for timber ceiling

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21 Feb

House Extensions

Cardiff - CF14

Enquiry from: Saiyonora H

Start Date: Immediate

customer in cardiff area has requested that we arrange quotes for their house extension project.mrs are considering various options and would like to discuss with a builder directly.please call to dis...

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21 Feb

House Extensions

Cardiff - CF3

Enquiry from: Randa H

Start Date: Immediate

Build Extends kitechen Iput pictures hope you're having them

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21 Feb

Building work | General

Cardiff - CF3

Enquiry from: Randa H

Start Date: Immediate

External wall insulation Lead External wall insulation Lead

Build to Extend kitechin

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16 Feb

House Extensions | Single Storey

Cardiff - CF14

Enquiry from: Martin D

Start Date: 1 to 3 months

single storey rear wrap around extension to replace rear kitchen on 1930s semi. bi fold doors to garden, pitched roof with velux or flat roof with skylights. side lean to, to house utility/ cloak room...

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24 Jan

Building work | General

Cardiff - CF24

Enquiry from: Naheem Q

Start Date: Immediate

Roof trusses for new build Single storey Dimensions L 17M APPROX W 6.5M APPROX Thanks

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How much do Builder services cost?

How much do Builders cost? Prices for Builders in 2025 can fluctuate relying on the sort of work that you need to have carried out in your residence.

Are you planning to erect a new house or structure? If yes, then you’d probably want to know just how much it’ll take to get the project over the line to help you set a budget and start to plan. Building a new house is requires huge financial investment and as a result, there’s the need to carry out your due diligence before you proceed. In this post, we’re going to give you an insight into the prices charged by builders to erect a new home or structure.

First and foremost, like every other home project, the price charged by builders to construct a new house or structure depends on a wide range of factors. These factors include the size, location, accessibility as well as qualifications of the builders you wish to employ just to mention a few. For instance, you’d expect the cost of building two-storey in London to be a lot more expensive than the price of a one-story building in Scotland. However, we’ll try our best to give you an idea of the price range you can expect to incur to complete your project.
In general, a builder will charge within the range of £10 to about £15 per hour on the average. For small building projects which includes wall and foundations repairs, a builder will typically charge about £11 per hour. However, the price charge will depend on the extent of the job due to the fact that simple tasks such as repointing only costs about £10 per hour, while laying new foundations can cost up to £15 per hour.

The table shows the types of work that Builders typically do and the average cost range of these tasks. Some tasks take longer to finish than others so prices do fluctuate by job.

View our Builder cost guide View our Builder advice

The average price
of a Builder in Cardiff is:

£23,840

Builder job Builder cost in 2025
Garage conversion in Cardiff £4,500-£6,900
Loft conversion in Cardiff £18,750-£28,750
House extensions in Cardiff £42,000-£68,000
Loft insulation in Cardiff £450-£690
Upvc or wood porch in Cardiff £2,625-£4,025
Barn conversions in Cardiff £112,500-£172,500
Basement renovation in Cardiff £30,000-£46,000
Bedroom fitting in Cardiff £1,500-£2,300
Bricklayers in Cardiff £300-£460
Cavity wall insulation in Cardiff £400-£820
Commercial new builds in Cardiff £105,000-£161,000
Conservatory base in Cardiff £675-£1,035
Building maintenance in Cardiff £2,250-£3,450
Building insurance works in Cardiff £2,250-£3,450
Pebble dashed walls in Cardiff £2,000-£9,200
Plasterboard dry lining in Cardiff £638-£978
Residential new builds in Cardiff £105,000-£161,000
Restoration and refurbishment in Cardiff £37,500-£57,500
Roof insulation in Cardiff £7,500-£11,500
Underpinning in Cardiff £2,250-£3,450
Wall cladding in Cardiff £1,125-£1,725
Wall rendering in Cardiff £3,750-£5,750
Demolition in Cardiff £2,440-£3,660
Roof room in Cardiff £15,000-£23,000
Shop refurbishment in Cardiff £3,750-£5,750
Single storey house extension in Cardiff £23,200-£34,800
Soundproofing in Cardiff £900-£1,380
Driveway repair in Cardiff £1,520-£2,280
Garden room in Cardiff £6,400-£9,600
External wall insulation in Cardiff £6,000-£15,000

Related Builder searches in Cardiff

Builder FAQs

Do I need my neighbours’ permission for an extension?

Well the reality is, sometimes, neighbours just don’t get along. With several individuals living in close proximity, it’s little surprise they tend to get on one another’s nerves from time to time. However, there’s a difference between having a tiff and being able to transform your house the way you want without having to obtain your neighbour’s approval.

The short and simple answer to this question is, not necessarily. However, you must first educate yourself by thinking about your extension and how it affects the houses around you. We’d strongly recommend you talk proposals through with your neighbour so as to avoid possible conflicts later. There are a number of reasons why your neighbour can protest to your new home extension plans. Let’s take a look!

 

  • In the event whereby your new extension is blocking their view or providing an unwanted shade on their property. Here, they have a legitimate reason to protest as no one would want their once sunny garden suddenly covered or plummet into shade.
  • In the event where it leads to a loss of privacy. For instance, if your new extension possesses a window which overlooks the neighbour’s property in any way. This is likely to be taken as an invasion of privacy and that has a little to no chance of being a welcomed idea.
  • If it’s a major project and going to take a lot of weeks before completion. The noise generated, especially when your neighbours are enjoying your summer holidays or weekends, can make their gardens not as relaxing as it used to be.
how much is a loft conversion?

With the ability to add approximately one third of your existing living space ( by converting your old, unused attic) to your home or property without having to let go of your garden, it’s quite easy to see the reason why loft conversion has rapidly grown to become one of the most popular home improvements in the UK. However some homeowners usually shy away from the idea simply by looking at the perceived high cost of carrying out such a project, despite several researches showing that loft conversions offers the best rate of return on initial investment when compared to the other home improvement projects. So exactly how much would it cost to carry out this project?

Just like several other home improvement projects, the cost of a loft conversion varies greatly depending on a wide range of influencing factors. These factors include the size of your home, how old your home is as well as the quality of the fixtures and fittings you want to install. For instance, a high end bathtub alone can cost you thousands of pounds, meanwhile you can also construct a full bathroom suite on just a couple of hundred pounds. However, to give you an idea of the minimum cost of a loft project we’ll look at the most popular types and the minimum cost of each.

✓ Internal Loft Conversion - The most affordable type of loft conversion tends to start from £25,000 and above.

✓ Dormer or L-Shaped Dormer Loft Conversion. These are the most popular types of loft conversion. Dormer price tends to start from £35,000, while the L-shaped dormer starts from £45,000.

✓ Mansard Loft Conversion - This involves replacing the entire side of a sloping roof with a vertical wall and flat roof. It requires a planning permission. The type of loft conversion usually starts from £45,000.

✓ Hip To Gable Loft Conversion - This usually starts from £50,000.

do you need planning permission for a loft conversion?

Typically, loft conversions do not require planning permission except in certain situations. They’re usually covered under what’s known as Permitted Development. Certain building works like loft conversion, rear extension and conservatories are granted planning permission by local authorities. Permitted Development, however, gives you a free range to improve your home without having any issues from the councils or regulations. Before your planned loft conversion can be covered under Permitted Development, there are some certain criteria that must be met. This criteria includes the following:

✓ The extension must not go beyond the existing slope of the roof at the front of the house.

✓ The loft space converted must not go beyond 40 cubic metres in a terraced house.

✓ The roof’s height must not be increased by the extension.

✓ The loft space converted must not reach beyond 50 cubic metres in a detached or semi detached house.

✓ The plan for the extension mustn’t involve structures like balconies, verandas or anything other structures of this nature.

✓ The roof extension should be positioned as far back as possible or at least 20cm from the existing eaves.

✓ The side that faces the window openings should be at least 1.7m beyond the floor and the windows should also be obscured.

✓ The roof extension must not overhang the existing roof or wall of the house.

✓ The materials that are to be used must be similar or the same to the materials that has already been used on the house’s exterior.

However, you should bear in mind that there are some properties that are exempt from Permitted Development. Examples of these type of properties include conservation areas, Areas Of Outstanding Natural Beauty and World Heritage sites. Permitted Development does not also provide coverage for listed buildings.

Is Planning Permission needed for Sound Proofing?

In general, you won’t need planning permission to install soundproofing. If you are installing soundproofing against a shared wall, you will usually need to follow the rules and restrictions set out in the Party Wall Act. In listed buildings and conservation areas, there may be extra restrictions on soundproofing.

Will I need planning permission to convert my loft?

Planning permission is not normally needed for a loft conversion as they are covered by permitted development rights. A conversion company will tell you if you do and help you with this. For more information, see our article about planning permission.

does loft insulation cause condensation?

The short and simple answer to this question is yes, loft insulation does cause condensation. Over the years, problems with condensation in loft spaces have become increasingly common. While this may not be harmful in anyway, when the condensation becomes excessive it can lead to more serious issues taking root in your loft like wet rot, dry rot as well as black spot mould. Generally, the best thing to do if you’re concerned about the condensation in your loft space and that it may rapidly become a bigger problem is to get in touch with a damp specialist as soon as possible.

 

Even though insulating your loft space comes with a wide array of benefits like making the top floor rooms warmer, it’s however comes at the cost of making your loft or room space cooler. Condensation in lofts take place primarily due to the humid air making its way through insulation or other gaps into the loft space and touching a cooler surface which in turn results in beads of moisture on the timbers, lintels as well as the underside of the roof. This is why its always a great idea make use of thermal insulation with a vapour barrier that’s installed on the warmer side of the insulating material.

 

Condensation in loft is caused by excess moisture in the air and lack of adequate air ventilation. Here are some top reasons that gives rise to this in the loft:

  • Extra insulation has been installed in the loft leading to a restriction on the natural air circulation in the property.
  • When the storage boxes or other items that has been stockpiled in the loft blocks the roof vents.
  • The release of steam and moist air into the loft space by hot water tanks.
how long do house extensions take?

If you’re about to start your house extension project and wondering how long it’ll take to complete, you’re not alone! This is one of the most common questions that’s asked by homeowners in the UK and across the globe. However, there’s no single precise answer for this as there are multiple factors that’ll affect the length of time it’ll take to complete your home extension. These factors include the size of the construction work as well as whether you’re planning to live in the house after completion or otherwise.

For a single extension, the length of time it’ll take to complete the home extension is normally up to 3 months. So let’s break this down:

As you would have expected, the first step to be taken is the preparation of the site. You start by digging out the footing and preparing the foundation which should take about 2 weeks. This is then followed by the damp course installation as well as the fitting of any drains needed around the extension which will also take a further 2 weeks.

The 5th week will be for the construction of the external walls as well as putting the blockwork in place for the provision of the cavity wall insulation. A further 2 weeks after this, will be dedicated to the installation of the roof structure and the internal walls.

It’s at this junction that you’ll call on your weather proof installer to fit in your uPVC windows and doors. Once done, the gas fitters and electricians will have to be on site to connect power to your new extension building. Subsequently, this will be followed by internal wall plastering as well as breaking through your main house. Once the plaster is dried, decorations completed and all the required furniture and units installed, the extension is ready for use.

Can my loft be converted?

Many types of loft are suitable for a loft conversion. In general, you will need at least 2.3 metres of headroom in your existing loft. This is to make sure there is enough headroom after the conversion. Speak to a conversion specialist about the probability and possibility of doing this in your house.

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