Find a Builder you can trust in South Glamorgan.

Choose from 62 Builders, all rated by people like you.

Over 61 reviews & an average rating of 4.7/5 stars, you'll find the right pro

Choose and shortlist

Use the shortlist button to select up to 4 tradespeople, enter your project details and press send

or

Keen to get on with the job?

Get up to 4 quotes from local Builders near you

View Shortlist
Verified Pro

Rightway Environmental

0 review(s)
Offers services in SOUTH GLAMORGAN
Rightway Environmental are an Asbestos removal company that have been independently licensed by the Health and Safety Exec...
Verified Pro

MC Roofing & Landscapes

0 review(s)
Offers services in SOUTH GLAMORGAN
We offer a wide range of home improvements .e.g. paths patios garden maintenance, driveway installation, extensions repair...
Verified Pro

Alexander Constructors

0 review(s)
Offers services in SOUTH GLAMORGAN
South Wales, Penarth based design and build contractor. Projects completed include new houses, extensions, kitchens, bathr...
Verified Pro

J&D Home Improvements

1 review(s)
Offers services in SOUTH GLAMORGAN
Hi at j&D home improvements we take pride in our work to make satisfied customers All work in fully guaranteed Ful...
Verified Pro

Premier Roofing & Building

0 review(s)
Offers services in SOUTH GLAMORGAN
Hi im steve from premier roofing and building At premier roofing and building we strive for a 100% good feedback. a local ...
Verified Pro

BGD Building and Roofing

2 review(s)
Offers services in SOUTH GLAMORGAN
Hard working clean building and roofing boys ready for the next care and repair

Recent Builder Enquiries

27 May

Driveway Repair

Cardiff - CF14

Enquiry from: John D

Start Date: Immediate

resetting of steps to the front door

Post a similar request >

20 May

Building work | Wall Rendering

Cardiff - CF14

Enquiry from: Mohamed B

Start Date: Immediate

Part of the rendering on the side of the house has fallen off. Needs repair.

Post a similar request >

11 Feb

House Extensions

Cardiff - CF10

Enquiry from: Reuben M

Start Date: Immediate

How much it cost for house extension

Post a similar request >

30 Jan

Building work | Bricklaying

Cardiff - CF24

Enquiry from: Airandeep S

Start Date: Immediate

Front wall commercial unit 2/3 metre walls needs bricking

Post a similar request >

08 Jan

Insulation | Loft / Roof

Cardiff - CF5

Enquiry from: Lois P

Start Date: Immediate

Roof Size: Less than 20m² Urgency: ASAP Suspected inadequate insulation in single story flat roof extension

Post a similar request >

30 Nov

House Extensions | Single Storey

Cardiff - CF14

Enquiry from: Sunil P

Start Date: 1 to 3 months

customer in cardiff area has requested that we arrange quotes for their single storey house extension project.they are considering various options and would like to discuss with a builder directly.ple...

Post a similar request >

01 Oct

Conversion | Loft

Cardiff - CF11

Enquiry from: Symone R

Start Date: Immediate

are you the property owner: owner of the property property type: terrace what are you looking to convert the space into: bedroom/s are you looking to have stairs: yes do you require any windows: skyli...

Post a similar request >

04 Sep

Extension | Garden Room

Cardiff - CF14

Enquiry from: Tim J

Start Date: Immediate

we are looking to install a a high end golf simulator in a new log caabin. do you provide the full turnkey solution of building a log cabin and installing a simulator? we'd need to get power to the ca...

Post a similar request >

21 Jul

Building Work | Porch

Cardiff - CF24

Enquiry from: Sonia O

Start Date: Immediate

Hi, i have some lovely old tiles in my porch which need to be put back, I removed them as they were loose .

Post a similar request >

17 Jun

House Extensions | Single Storey

Cardiff - CF11

Enquiry from: TAJ I

Start Date: Immediate

REAR FLAT ROOF EXTENSION 2.5M LENGTH BY 3M WIDTH

Post a similar request >

14 Apr

Conversion | Garage

Penarth, Dinas Powys - CF64

Enquiry from: Marc A

Start Date: Immediate

Conversion of a detached garage into a gym.

Post a similar request >

24 Mar

Building work | General

Barry - CF62

Enquiry from: Lilly R

Start Date: Immediate

Hello, perhaps an odd request but would hugely appreciate your help on this - the property listed is a prospective home purchase. We have been advised by the agent that they are not licensed to let us...

Post a similar request >

22 Mar

Insulation | Loft / Roof

Llantwit Major - CF61

Enquiry from: Julie L

Start Date: Immediate

customer has a insulation project they are looking to have done, specially they want quotes for loft & roof insulation. they are unsure of options so would like to discuss with a builder.confirmed int...

Post a similar request >

22 Mar

Insulation | External Wall

Llantwit Major - CF61

Enquiry from: Julie L

Start Date: Immediate

i am looking to warm wrap externally and insulate flooring. are you the property owner: owner of the property property type: detached how many bedrooms do you have: 1-2 bedrooms property age: 1930-70 ...

Post a similar request >

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...

Post a similar request >

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

Post a similar request >

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 ...

Post a similar request >

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,

Post a similar request >

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...

Post a similar request >

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.

Post a similar request >

How much do Builder services cost?

How much do Builders cost? Prices for Builders in 2026 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 South Glamorgan is:

£23,840

Builder job Builder cost in 2026
Garage conversion in South Glamorgan £4,500-£6,900
Loft conversion in South Glamorgan £18,750-£28,750
House extensions in South Glamorgan £56,000-£68,000
Loft insulation in South Glamorgan £450-£690
Upvc or wood porch in South Glamorgan £2,625-£4,025
Barn conversions in South Glamorgan £112,500-£172,500
Basement renovation in South Glamorgan £30,000-£46,000
Bedroom fitting in South Glamorgan £1,500-£2,300
Bricklayers in South Glamorgan £300-£460
Cavity wall insulation in South Glamorgan £400-£820
Commercial new builds in South Glamorgan £105,000-£161,000
Conservatory base in South Glamorgan £675-£1,035
Building maintenance in South Glamorgan £2,250-£3,450
Building insurance works in South Glamorgan £2,250-£3,450
Pebble dashed walls in South Glamorgan £2,000-£9,200
Plasterboard dry lining in South Glamorgan £638-£978
Residential new builds in South Glamorgan £105,000-£161,000
Restoration and refurbishment in South Glamorgan £37,500-£57,500
Roof insulation in South Glamorgan £7,500-£11,500
Underpinning in South Glamorgan £2,250-£3,450
Wall cladding in South Glamorgan £1,125-£1,725
Wall rendering in South Glamorgan £3,750-£5,750
Demolition in South Glamorgan £2,440-£3,660
Roof room in South Glamorgan £15,000-£23,000
Shop refurbishment in South Glamorgan £3,750-£5,750
Single storey house extension in South Glamorgan £46,600-£34,800
Soundproofing in South Glamorgan £900-£1,380
Driveway repair in South Glamorgan £1,520-£2,280
Garden room in South Glamorgan £6,400-£9,600
External wall insulation in South Glamorgan £6,000-£15,000

Related Builder searches in South Glamorgan

Builder FAQs

how much are fitted wardrobes?

We all need a reliable place to keep our clothes or dresses, however in situations where a standard freestanding wardrobe just won’t cut it, there is the need to put into consideration a fitted wardrobe. For instance, if you have a bedroom with acloves and sloping ceilings, you’ll discover that the standard-size, freestanding wardrobe just won’t be suitable as they’ll appear strange and look very much out of place while also not being able to put the available space to efficient use. In this regard, a fitted wardrobe will do a much better job as it’s a lot more suitable for mostly all types of bedrooms. So if you’re thinking about having one fitted in your bedroom, you’d probably want to know the just how much it’ll cost. In this article, we’re going to provide you with a good insight on fitted wardrobes cost.

Generally, the prices of fitted wardrobes depend largely on a number of factors. These variables include both the quality as well as the type of included fittings. The types of fitted wardrobes with their estimated price range are given below:

✓ Bespoke fitted bedroom wardrobe. This type can range between £2500 to about £3000 depending on the design details. The extras include mouldings, columns and panels.

✓ Simple two section closet. This type can range between £2500 to about £3200 depending on the design.

✓ Large bedroom, three section, six doors. This type of fitted wardrobe features both interior and exterior finishes alongside drawers and hanging space. The cost normally ranges between £4400 to £4900.

✓ Contemporary, sliding door fitted wardrobe. This type usually features three sections alongside door mirrors to make the bedroom appear larger. The cost normally ranges between £2800 to £3600.

how much does a loft room cost?

How Much Does A Loft Room Cost

In the event whereby you happen to run out of space in your home and extending sideways or moving out isn’t even a considerable option, the next best solution is to look upwards - the loft. The loft can be converted into a room that can used to satisfy varying purposes, be it a storage room, bedroom, home office, spare bathroom and more. There are a number of loft conversion styles you can go for including a room in loft conversion, dormer style conversion, mansard conversion, or a hip-to-gable conversion. Regardless of your choice, each of the types will not only give you new rooms to enjoy but also add value to your home. However, before getting started, it’s crucial to have an idea of the loft conversion cost to help you prepare a budget and begin planning. Here, you’ll discover the most likely loft room cost for each conversion style you opt for.

• Room In Loft Conversion

This is only suitable for some specific home, but it’s however the most affordable option of the lots. This loft conversion style will cost within the range of £15,000 to £20,000 (prices can be higher in regions where tradesmen are higher in demand such as London and the south east).

• Dormer Loft Conversion

These are relatively simple and straightforward to include in your home. The cost ranges between £31,000 to £58,000 depending on the conversion’s size and other factors.

• Hip To Gable Loft Conversion

This style of loft conversion is more complex than the aforementioned ones, hence they’re usually more costly to complete. The price ranges between £42,000 to £65,000.

• Mansard Loft Conversion

This style of loft conversion is the most complex of the lot and includes a complete overhaul of your loft. The price ranges between £45,000 to £70,000.

• Bungalow Loft Conversion

Any of the main styles above can be done to a bungalow if the planning requirements are fully complied with and if the property is suitable. The price ranges between £30,000 to £70,000.

how much does it cost to renovate a house?

Do you want to inject a new lease of life into your home or property, or transform it into a more modern style that better suits your taste? Or perhaps you’re only looking to add more value to your property to enable you sell for a profit in the nearest future. Regardless of your purpose, determining the cost of your home renovation can be incredibly difficult. However, you can still obtain a reasonable budget for the project with proper planning as well as preparation. It’s almost impossible to get an exact figure for any home renovation cost, however, this article aims to give you a good idea of cost range to enable you make informed decisions.

The cost of renovating a house can vary significantly depending on a wide range of factors. Some costs are fixed while others may vary greatly. As a result, if you want to have a more exact figure, you’ll have to call in a professional beforehand to give you an idea of how much they’ll charge. Below are some of the most significant costs you’ll most likely face during property renovation.

✓ Administrative cost. Asides from material and labour, the administrative costs is another important cost you’ll need to factor in. The first thing here is usually insurance, this is because all regular building insurance policies does not cover large scale renovation projects. So if what you’re planning is a huge structural change to your property, then it’s more likely that it won’t be covered by your buildings insurance policy. In this event, you’ll have to take out a specialist renovation insurance.

✓ Planning permission and property renovation. This is another potential cost you’ll have to factor in. Submitting a planning application in the UK usually ranges between £200 to £250.

✓ Adding an extension. Generally, a 4m by 5m extension would cost within the range of £30,000 to £40,000.

do i need building regs for a garage conversion?

Are you considering converting your garage into a more usable space in your home? If yes, then you’d probably want to know if you’ll require building regs before converting the garage. The answer to this question is yes. Although you may not require planning approval to convert your garage into a more usable space, but you’d usually need approval under the Building Regulations.

When re-structuring your garage into a habitable space, the following should be taken into consideration: structural alterations, ventilation, moisture proofing, insulation, fireproofing, escape routes as well as the submission of a building building notice or full plan application to the local council in order to inform them about the planned project.

• Walls

You’ll require an approval if you plan to infill the garage door with a window and a new wall. This is because the garage may have been built of a shallow slab which implies that a new foundation would be needed for the new wall construction.

• Floor

Even though there’s a high possibility that the garage floor is strong enough for domestic use since its designed to withstand the weight of vehicles, you may however need to upgrade to make sure it suitable for both thermal insulation and damp proofing. In addition, there may also be the need to to alter the floor level in such a way that it matches that of the remaining parts of the house.

• Ventilation

According to the Building Regulations requirements, there’s a need for adequate ventilation for each individual rooms which includes garage conversions for general health purposes. What’s going to determine the ventilation level that’ll be required is the frequency at which the room is used. Ventilation can be provided through purge or simply opening the window or via trickle ventilation.

what is a porch?

A porch is a small and low structure (with a roof) located at the main entrance of a building or house. It’s typically without a window (although newer variations may come with one) and can either be screened-in or enclosed to prevent unwanted access from insects and extremes in weather. In addition, some homes may have a three-season porch or sun porch. This may be situated by the side of the house and covered by the roof overhang - they’re usually screened in to offer good access all year round.

Generally, porches serve a wide range of purposes. They include:

• Provision of an outdoor living space to relax during the summer months

• It’s an informal extension of the the living room.

• It serves as a great place for social gatherings especially in small towns.

• You can take off your dirty shoes and dry a dripping wet dog before entering into your living room.

• It can be incorporated for relaxation purposes and watching street activities.

• It can serve as a reception area for guests.

• It can also be used for outdoor storage.

Pros & Cons Of A Porch

Pros

• Due to the fact that they’re covered, porches may require little maintenance practices.

• It can go a long way to improves the curb appeal of your property.

• It protects against the extremes of the weather.

• It can be constructed using a wide range of materials.

Cons

• It does not improve the use of the property

• It can be quite expensive to install depending of the material required as well as size of the porch.

• It does not add to the value of the home unlike several other home improvement projects

• It may not be safe to be used by a child or pet.

how to pebble dash a wall?

Pebble dash is an effective way to tune up your house or property as it can go a long way to enhance its curb appeal while also add to its resale value if you should decide to sell later on. Although, it’s highly recommended to leave this task for a reputable specialist, it’s also something that can be done as a DIY task. It must be states that this is a pretty difficult job and even more so if you haven’t attempted it before. In this post we’re going to take you through the processes involved in pebble dashing a wall. Let’s take a look!

  • Mix up water with the lime strictly following the manufacturer’s instructions. Once done, leave it covered up to hydrate for at least 24 hours.
  • Take one part of the slaked lime and mix it up with cement and six parts sand. This is to give the base mixture required to spread onto the surface.
  • Use a trowel to apply the mixture onto the wall. Ensure that the trowel is level and use the edges to make a flat and smooth layer of the mixture on the surface as a base layer. Allow the base layer to dry for up to an hour. Then, rake the surface using a notched trowel and allow to dry for a minimum of 24 hours.
  • Rinse and drain your pebbles. Then, set them under the wall you’re pebble dashing.
  • Take the top coat of five parts sand and mix with one part cement and one part slaked lime. Use a trowel to apply this mixture over the base layer and smoothen it with the trowel to create a flat and even top layer.
  • Spread a plastic sheet beneath the wall you’re pebble dashing to capture any loose pebbles as they fall.
  • Grab the bucket of pebbles below the wall and scoop some of the pebbles up using a scoop or trowel. Some will stick and some will fall into the plastic sheet already placed below. Continue throwing the pebble dash until the surface is completely and evenly covered with pebbles.
  • Lightly press and fit the pebbles on each section into the wall and leave for at least 24 hours to dry.

Are there grants available for external wall insulation?

External wall insulation works to keep your home cosy and comfy while also helping to cut the energy bills. However with the great benefits also comes great costs, so it’s actually a logical decision to know whether there are grants out there which you’re eligible for to help you handle the cost of the external wall insulation.

There are grants available for external wall insulation, but rarely will you find one that covers the full installation cost. With the help of the government’s Energy Company Obligation (ECO) scheme, a couple of energy companies assist in making your home more energy efficient by offering grants or free insulation. In certain cases whereby you receive particular state benefits, you may as well qualify for a higher grant that’ll cover more of the insulation cost.

However, if your energy supplier doesn’t offer any grant, you need not worry as you can save as much on energy bill after installation. Here’s what insulation can help you save per year on energy bills:

• Floor insulation can help you save within a range of £30 to £75 each year.

• Cavity wall insulation can help you save about £85 to £280 a year.

• Loft Insulation (270mm) can help you save about £135 to £250 a year.

Generally, the amount you’ll be able to save on your energy bills depends mainly on the type and size of your property, as well as how energy efficient it already is without the insulation. In the long run, your external wall insulation will more than give you back your investment on the valuable project through your savings on energy bills. In other words, whether or not you’re eligible for a grant should never stop you from installing an external wall insulation.

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.

Builder help and advice

How it works

Tell us about your Builder project

Answer a few quick questions to help us match you with the right Builder

Get up to 4 free quotes

Receive no-obligation quotes from 4 Builders working in South Glamorgan.

Pick the right pro for you

Compare prices, customer reviews and services, and hire the right Builder.

Are you a Builder in South Glamorgan?

View our open Builder jobs near you

Join today
View Shortlist