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Alexander Constructors

0 review(s)
Offers services in CALDICOT
South Wales, Penarth based design and build contractor. Projects completed include new houses, extensions, kitchens, bathr...
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Hi im steve from premier roofing and building At premier roofing and building we strive for a 100% good feedback. a local ...
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When it comes to your roof, you need a partner you can trust. Discover what makes RS Roofing Services no1 Limited the pref...
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J&D Home Improvements

1 review(s)
Offers services in CALDICOT
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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Betterview Landscaping & Patios have been providing driveways, lock paving, tarmac and hard landscaping services acros...

Recent Builder Enquiries

07 Jan

Building work | General

Caldicot - NP26

Enquiry from: Kevin P

Start Date: 1 to 3 months

we have just moved in to the property. as well as some good sets of external bifolds which we are happy with, the previous owner also installed an external upvc double glazed triple bifold internally ...

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16 Jan

Insulation | Cavity Wall

Caldicot - NP26

Enquiry from: Owen B

Start Date: Immediate

Cavity wall insulation for 3 walls of a two story extension. Approx 5m per side and 2.5m tall per floor.

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15 Jun

Conversion | Loft

Caldicot - NP26

Enquiry from: Jodie R

Start Date: Immediate

A standard loft conversion- with velux windows

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29 May

Building work | General

Caldicot - NP26

Enquiry from: Charlotte L

Start Date: Immediate

Removal of render to terraced house and repointing of brickwork

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11 Jul

Bedroom | Fitted Wardrobe

Caldicot - NP26

Enquiry from: Robert M

Start Date: Immediate

fit wardrobes to three bedrooms to match those in master bedroom are you the property owner: owner of the property how many bedrooms do you have: 3-4 bedrooms are you looking to decorate the whole roo...

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11 Oct

Insulation | Loft / Roof

Caldicot - NP26

Enquiry from: Jim S

Start Date: Immediate

top up loft insulation price are you the property owner: owner of the property property type: detached how many bedrooms do you have: 3-4 do you currently have loft insulationn: yes do you require a ...

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08 Jun

New Build | Residential

Caldicot - NP26

Enquiry from: Jacob S

Start Date: Immediate

customer has a extensions & conversions project they are looking to have done, specially they want quotes for new build homes. they are unsure of options so would like to discuss with a builder.confir...

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22 Apr

Building work | General

Caldicot - NP26

Enquiry from: Catherine C

Start Date: Immediate

customer in the caldicot area made an enquiry a couple of projects including building maintenance.call anytime and arrange an appointment to discuss. below is some details about this project: are you ...

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18 Oct

House Extensions | Single Storey

Caldicot - NP26

Enquiry from: Martin S

Start Date: 1 to 3 months

hi looking for an idea of cost for a single storey extension approximately 3x4 meters. we would like some light from the roof but mainly from large bifolding doors a long the rear wall. time scale: 1-...

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03 Dec

Insulation | Loft / Roof

Caldicot - NP26

Enquiry from: Leon J

Start Date: Immediate

Customer made an enquiry for Loft & Roof Insulation via one of our websites. Looking at various options they would like to discuss directly Confirmed interest, SMS at 12:55 Please call to discuss and...

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25 Jun

Conversion | Garage

Caldicot - NP26

Enquiry from: Sean B

Start Date: 1 to 3 months

Garage conversion (extra living space/room and extension up to 2m at rear for utility room. Are you the property owner: Owner of the property What will the space be used for: Living Space Do you have...

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13 Jun

Conversion | Garage

Caldicot - NP26

Enquiry from: Alexa B

Start Date: Immediate

We would like to convert and extend (by only 1m or so) our attached garage into a snug lounge and utility room. We are looking to get some quotes before committing to the work. Thanks Alexa

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14 May

Conversion | Loft

Caldicot - NP26

Enquiry from: Andrew C

Start Date: 1 to 3 months

Homeowner Please contact to appoint

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27 Feb

House Extensions

Caldicot - NP26

Enquiry from: Victoria H

Start Date: 1 to 3 months

Double storey extension on the side of the house where the double garage currently is Are you the property owner: Owner of the property Property Type: Detached Looking For: Double storey extension Do...

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13 Jan

Conversion | Loft

Caldicot - NP26

Enquiry from: George R

Start Date: 1 to 3 months

Loft conversion with ensuite and plans. Are you the property owner: Owner of the property Property Type: Semi detached What are you looking to convert the space into: Bedroom/s Are you looking to have...

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24 Jul

Conversion | Garage

Caldicot - NP26

Enquiry from: Wendy B

Start Date: Immediate

Conversion of an attached double garage to an additional reception room. Creating new access from house and bricking up existing external door. Inserting windows where garage doors currently are. Crea...

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27 Apr

House Extensions

Caldicot - NP26

Enquiry from: Selwyn D

Start Date: Immediate

Are you the property owner: Owner of the property Property Type: Detached Other Forms: 45 Agreed to recieve quotes for selected products: Yes Please call to appoint

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02 Jan

House Extensions

Caldicot - NP26

Enquiry from: Simon O

Start Date: Immediate

Two storey extension to provide living room and master bedroom. We have a 3 bed detached property in undy.

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08 Dec

House Extensions

Caldicot - NP26

Enquiry from: Richard W

Start Date: Immediate

Conversion of an existing extension into a larger 'granny flat'. Approx 45sq m

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30 Aug

House Extensions

Caldicot - NP26

Enquiry from: Terry W

Start Date: 1 to 3 months

Front downstairs extension, outside measurements of 6.3 metres wide by 1.4 metres deep front door to the side single window front. To create a bay, with a larger entrance porch both separated by a cu...

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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 Caldicot is:

£23,840

Builder job Builder cost in 2026
Garage conversion in Caldicot £4,500-£6,900
Loft conversion in Caldicot £18,750-£28,750
House extensions in Caldicot £42,000-£68,000
Loft insulation in Caldicot £450-£690
Upvc or wood porch in Caldicot £2,625-£4,025
Barn conversions in Caldicot £112,500-£172,500
Basement renovation in Caldicot £30,000-£46,000
Bedroom fitting in Caldicot £1,500-£2,300
Bricklayers in Caldicot £300-£460
Cavity wall insulation in Caldicot £400-£820
Commercial new builds in Caldicot £105,000-£161,000
Conservatory base in Caldicot £675-£1,035
Building maintenance in Caldicot £2,250-£3,450
Building insurance works in Caldicot £2,250-£3,450
Pebble dashed walls in Caldicot £2,000-£9,200
Plasterboard dry lining in Caldicot £638-£978
Residential new builds in Caldicot £105,000-£161,000
Restoration and refurbishment in Caldicot £37,500-£57,500
Roof insulation in Caldicot £7,500-£11,500
Underpinning in Caldicot £2,250-£3,450
Wall cladding in Caldicot £1,125-£1,725
Wall rendering in Caldicot £3,750-£5,750
Demolition in Caldicot £2,440-£3,660
Roof room in Caldicot £15,000-£23,000
Shop refurbishment in Caldicot £3,750-£5,750
Single storey house extension in Caldicot £23,200-£34,800
Soundproofing in Caldicot £900-£1,380
Driveway repair in Caldicot £1,520-£2,280
Garden room in Caldicot £6,400-£9,600
External wall insulation in Caldicot £6,000-£15,000

Related Builder searches in Caldicot

Builder FAQs

Will my extension be expensive?

It depends on the size and type of extension. Small porches or flat roof extensions are very reasonably priced. More substantial two storey extensions can be expensive. In general, the price is roughly proportional to the amount of space you add to your home.

how much to refurbish a house?

Refurbishing a house brings about a plethora of benefits. These includes an increased sale value, an improvement on your quality of life or even simply to make it more visually appealing. All these are great when you look at them, but one thing that happens to be an hindrance for several homeowners is the cost of getting the project done. You may wish to set a budget, plan and prepare before commencement of the project, but the fact remains that, when it comes to refurbishing a house, nothing is certain. In fact, it’s advised to always expect the unexpected and have a lot of cash in reserve just in case something goes wrong. There are a wide range of factors that can play a key role in the overall cost of a house refurbishment. Minor refurbishment that should cost around £30,000 can easily go up to over a whooping £150,000 for a total transformation. Most of this cost will be expended on labour, and the next most significant expense, which is sourcing materials.

In general, the cost of your refurbishment project will depend on some factors which includes the size of the project, the materials used, the refurbishment or renovation level, the location of the property, the quality of the contractor hired and lots more. To estimate the cost of refurbishing your property, you can follow these simple steps:

✓ Write down a detailed list of all the things that needs to be done per room and try to be as specific as possible.

✓ Carry out a research of the labour cost in your area as well as the raw materials’ cost (here, you can make use of guides such as home advisor).

✓ Add an extra 10 to 15 percent on top of the calculated estimate for uprisings and repairs.

✓ Talk to your contractor to get a more accurate quote.

what is a hip to gable loft conversion?

This is a type of loft conversion that extends your roof on the sloping side. It is a great option to go for especially where a hipped roof effectively makes the usable floor area a lot smaller which can be a tricky affair when it comes to putting in a new staircase. Here, the roof is extended from the current ridge in such a way that it effectively fills the gap between them. As a result, this turns the hip (in a hipped roof) into a gable to create space in your roof for a loft conversion - hence the name “hip to gable.

The new gable can be done in whatever way that suits both your taste as well as your property. You can make the new gable construction in woods and then tiled to match your existing roof while you can also go for other options such as brick block pebbledash or rendering. You are also free to fit in a new window into the loft conversion end so as to allow for natural light into the loft space.

A hip to gable loft conversion is mostly found on both semi detached and end terrace buildings, particularly those constructed in the 1930s. Overall, this type of loft conversion is particularly ideal for homes that features a hipped roof and with a sloping roof at the side of the property. Some detached properties can also possess a hipped roof on the side - and as such, a double hip to gable loft conversion can also be deal as it’ll create more loft space for usage. If your home fits into the bill, then you should be aware that once the project is completed, you’ll have plenty of usable space available to both you and your loved ones.

How do I know if I have cavity wall insulation?

With cavity walls being very similar to other type of brick works, it can be quite confusing to figure out the type of wall your property possesses. If your house was constructed after the 1920s, then its highly likely the you have cavity walls, while older houses (houses before the 1920s) are likely to have solid walls. What’s more? If you happen to own a home that was built in the last decade, then it’s very possible that it was built with insulation installed during construction.

An effective way to determine whether or not your property is built with cavity wall is to examine the brickwork on your home’s exterior. The bricks will typically possess a regular pattern if it features cavity walls. In the event whereby the brick work is covered by render, you can also figure it out by taking a measurement of the wall’s width. If the brick wall is beyond 3000mm in thickness ( from the exterior wall to the interior wall), then it probably features a cavity. Meanwhile, a wall that’s narrower is very likely to be solid. Stone walls, on the other hand, may actually be thicker but are most times solid.

In a situation whereby your house is built using steel frame or timber frame, or made using pre-fabricated concrete, there are varying rules that applies when it comes to insulation and should be examined by an expert before any insulation is installed. More often than not, most contractors will have installed special air vents, which can also be a good indicator that a cavity wall insulation has been done.

how deep do footings need to be for a porch?

No matter how big or small a building is, it can only be as good as it’s foundation - and that’s a fact! It all starts from the footing and when it isn’t deep enough, unlike badly installed gutters or gapped hardwood flooring, can make the whole building collapse to the ground. Just like any code recommendations, the depth of the footings of your porch is a parameter that must be complied with and adjusted to suit your local code requirements.

As a rule of thumb, you should always dig below the frost line when excavating your footings. At this depth level, the moisture present in the soil will be frozen. Ultimately, this will help the ground to act as a barrier to insulate the soil below the footing from freezing during the cold months. As a result, in regions where the weather is almost always very cold the depth of your footings is expected to be at least 48 inches. But in areas featuring a warm climate, you may be allowed to install your footings on grade.

In addition, it’s compulsory that your footings must be installed at a minimum depth of 12 inches below unsettled soil. However, if you’re constructing the structure into a steep hill’s side or by the side of a retaining wall, it’s required that you maintain the least distance to grade both vertically and laterally. In the event whereby you need to achieve a good lateral barrier, you’ll need to have your foundation dug a lot deeper compared to if it’s on a flat surface. For a more accurate and updated information, you can consult your local building inspection department to get familiar with the requirements in your area.

how much loft insulation do I need?

Over the years, more and more home and property owners are beginning to realize the huge benefits that can be derived from loft insulation being a worthwhile investment. It’s quite worrisome the way in which energy bills have soared over the past 10 years and loft insulation is a considerable affordable energy efficiency measure that can go a long way to help increase your home’s energy savings.

 

As far back as the 1980’s, the standard when it comes to insulation thickness was 25 mm to 50 mm which was, at the time, considered to be sufficient. However, building regulations have changed the norm that now states that a new build needs to possess 270 mm of insulation in the loft in order to achieve the required u-value of less than 0.16/m2k based on the standard rock wool or sheep wool insulation.

 

Generally with loft insulation, there’s a law of depreciating returns which implies that the first couple of insulation centimetres will save you many times the cost of the installation, however an extra layer or centimetre is going to add less value to the point where it’ll no longer be wise or worthwhile to add any further centimetre. Therefore, with cheaper energy prices 30 years back, that additional couple of centimetres was not just worthwhile, but with the recent alarming rises in costs of fuel, that additional £10 savings per year has all of sudden changed to £30 which makes it become a lot more attractive.

 

If you already have 270 mm of loft insulation, regardless of the material you’re looking to add you’re most likely not going to benefit from a top up. The cost of the materials and installation will definitely be too high for the couple of pounds it’ll save you per year.

do you need an architect for a garage conversion?
Have you decided to convert that under-utilized space ( garage) in your home to a more habitable space where you can do anything asides general storage or parking a car? If yes, then you’d probably want to know where to start or if you’d require an architect to get started. Well, you’re not alone! This is one of the most frequently asked questions when it comes to garage conversions and reasonably so. Talking about where to get started, when it comes to home improvement projects the first step to take is determining whether or not you’d require a planning permission or if your proposed garage conversion is covered under permitted development rights. Once you’ve been able to conclude on that, the next step is deciding whether you’re going to complete the project yourself, hire the services of tradesmen or employing a builder. And this ultimately brings us to the question of whether you’ll need an architect for a garage conversion. To get started, it’s highly recommended that you employ the services of a professional architect or an architectural technologist to assist in designing your garage conversion. However, most garage conversion projects are straightforward with no complex changes to be made so far you wish to avoid applying for a planning permission and staying within the set guidelines of the permitted development rights. In such events, if you’re properly trained and well experienced in the field, then it may be cost effective to design your garage conversion by yourself. It should, however, be noted that it all depends on your personal preferences and budget. If you’re on tight budget and don’t mind a straightforward design, you can save cost by not hiring an architect.
how much is a single garage conversion?

Converting your garage into a habitable room can be an option that’s too good to pass up especially when you’re in dire need of more living space in your home. If you’re in a similar situation and considering the cost of a single garage conversion in your home, then you’ve come to the right place! The fact is, the cost of a single garage conversion is dependent on a number of influencing factors which includes your specific plans as well as your location. Generally, the price of garage remodel is expected to cost about half of what you’ll incur when building a home extension or addition from scratch. However, before commencing a project of this magnitude you should put into consideration some things.

A single garage conversion is a huge job which typically involves wall insulation, floor raising, heating addition, cool and ventilation as well as updating doors and windows. Before you get started you should consider if converting your single garage into a room is a good option, whether a permit is required to convert a garage, the type of room a garage can become, does it add value to your home and how much its going to cost.

Just like any other home improvement project, garage conversion cost varies depending on several factors like your garage space specifications. Other factors include the general condition of your garage - the condition of your foundation, walls, floors or roofs, the ceiling and more, planning applications, your location, the services of a structural engineer, internal or external garages etc. According to Santander, the average cost of converting a single garage costs approximately £6,300. However, considering the aforementioned influencing factors we’d expect the cost of a single garage conversion to cost within the range of £5,500 to £10,500.

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