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Verified Pro
Welcome to Haas Extension Group, where we take pride in being the premier suppliers, installers, and design consultants of...
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Thomas Roof Restoration

25 review(s)
Offers services in DARTFORD
Thomas Roof Restoration are proud to work on your property as if it were their own. Based in Canterbury, covering Kent, So...
Verified ProOver 10 Reviews
we Are a family run business with over 30 years experience built on reputation Our services include all types of roofing...
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Welcome to Home Counties, our team handle projects large and small from residential to commercial. Our Driveway service...
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Loft & Build

0 review(s)
Offers services in DARTFORD
We can cover all aspects of a loft conversion and extensions. If you require, we can also design the project including dr...

Recent Builder Enquiries

12 Apr

House Extensions

Dartford - DA2

Enquiry from: Vijay K

Start Date: Immediate

property owner house extension please call to appoint

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07 Apr

House Extensions | Single Storey

Dartford - DA2

Enquiry from: Vijay K

Start Date: Immediate

I need a 5x3 meters extension in back garden and this will have a kitchen fitted in. There is also an additional wall I need added in another portion of the house.

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19 Dec

Building work | General

Dartford - DA1

Enquiry from: Derron J

Start Date: Immediate

Hi, I am reaching out to the Kent Groundworks community as Propump Engineering manufacturers onsite lightweight foamed concrete to fill voids. Contact us or save our details if our services strengthen...

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30 Nov

Conversion | Loft

Dartford - DA4

Enquiry from: Kat M

Start Date: Immediate

homeowner loft conversion please call to appoint

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25 Jul

Bedroom | Fitted Wardrobe

Dartford - DA1

Enquiry from: Priyanka R

Start Date: Immediate

External wall insulation Lead

Fitted wardrobe in 2 rooms

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18 Apr

Insulation | Loft / Roof

Dartford - DA1

Enquiry from: Zoe D

Start Date: Immediate

Front and rear insulation

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21 Mar

Conversion | Loft

Dartford - DA1

Enquiry from: Sam S

Start Date: Immediate

homeowner- no previous quotes loft conversion please contact to appoint

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27 Feb

Building Work | Porch

Dartford - DA1

Enquiry from: Gaurish R

Start Date: Immediate

Sell 1 Times Are you the home owner of that property? yes Are you replacing an existing porch or is this a new build? new build What material do you require, UPVC? upvc & brick What colour do you wan...

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20 Feb

Building work | General

Dartford - DA1

Enquiry from: Richard U

Start Date: Immediate

my property requires underpinning job due to movement in the foundation are you the property owner: owner of the property property type: semi detached what type of work do you need to have done: othe...

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14 Feb

Building work | General

Dartford - DA1

Enquiry from: Sania F

Start Date: Immediate

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

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28 Dec

Building work | Sound Proofing

Dartford - DA1

Enquiry from: Valerio B

Start Date: 1 to 3 months

hi, i live in a maisonette in dartford and i would like to insulate the floor between my flat and the one below (in order to reduce noise) and also to reduce the noise between my living room and the a...

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01 Dec

Conversion | Loft

Dartford - DA1

Enquiry from: Janet J

Start Date: Immediate

verlux loft conversion for double bedroom, ensuite and storage are you the property owner: owner of the property property type: terrace what are you looking to convert the space into: bedroom/s are yo...

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26 Nov

Conversion | Loft

Dartford - DA1

Enquiry from: Janet J

Start Date: Immediate

verlux loft conversion for double bedroom, ensuite and storage are you the property owner: owner of the property property type: terrace what are you looking to convert the space into: bedroom/s are yo...

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24 Nov

Insulation | Cavity Wall

Dartford - DA1

Enquiry from: Omotunde O

Start Date: Immediate

Cavitity wall and loft insulations

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17 Jun

Conversion | Loft

Dartford - DA1

Enquiry from: Claire C

Start Date: Immediate

velux conversion, estimate and lead time 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 hav...

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22 Jan

Insulation | Cavity Wall

Dartford - DA1

Enquiry from: Matthew A

Start Date: Immediate

12m2 cavity insulation rear single storey extension are you the property owner: owner of the property property type: terrace how many bedrooms do you have: 1-2 property age: pre 1900 are you in a cons...

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14 Nov

Building work | Bricklaying

Dartford - DA2

Enquiry from: Kelly G

Start Date: Immediate

front garden wall rebuilt. measurements are 1 metre 800 length by 500 high with plymth 340 by 340 and 1 metre high. plus debris taken away property type: terrace how much work would you say needs to b...

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17 Oct

Conversion | Loft

Dartford - DA1

Enquiry from: Yog G

Start Date: Immediate

7.09 meters x 3.94 rear dormer loft conversion with 1 bedroom, an ensuite, 1 juliet balcony, and 2 velux windows. It is a timber frame house

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27 Aug

Building work | General

Dartford - DA1

Enquiry from: Suthan V

Start Date: Immediate

mr requested quotes for building maintenance from a builder around dartford. they are considering a couple of projects at the moment.call anytime to arrange appointment to discuss. the information bel...

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22 Aug

Conversion | Loft

Dartford - DA1

Enquiry from: Stacey W

Start Date: Immediate

dormer adding to existing conversion, and possibly en-suite 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...

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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 Dartford is:

£25,111

Builder job Builder cost in 2025
Garage conversion in Dartford £9,750-£18,450
Loft conversion in Dartford £37,917-£66,250
House extensions in Dartford £34,250-£72,000
Loft insulation in Dartford £450-£690
Upvc or wood porch in Dartford £2,625-£4,025
Barn conversions in Dartford £112,500-£172,500
Basement renovation in Dartford £30,000-£46,000
Bedroom fitting in Dartford £1,500-£2,300
Bricklayers in Dartford £300-£460
Cavity wall insulation in Dartford £400-£820
Commercial new builds in Dartford £105,000-£161,000
Conservatory base in Dartford £675-£1,035
Building maintenance in Dartford £2,250-£3,450
Building insurance works in Dartford £2,250-£3,450
Pebble dashed walls in Dartford £2,000-£9,200
Plasterboard dry lining in Dartford £638-£978
Residential new builds in Dartford £105,000-£161,000
Restoration and refurbishment in Dartford £37,500-£57,500
Roof insulation in Dartford £7,500-£11,500
Underpinning in Dartford £2,250-£3,450
Wall cladding in Dartford £1,125-£1,725
Wall rendering in Dartford £3,750-£5,750
Demolition in Dartford £2,440-£3,660
Roof room in Dartford £15,000-£23,000
Shop refurbishment in Dartford £3,750-£5,750
Single storey house extension in Dartford £21,600-£37,400
Soundproofing in Dartford £900-£1,380
Driveway repair in Dartford £1,520-£2,280
Garden room in Dartford £6,400-£9,600
External wall insulation in Dartford £6,000-£15,000

Related Builder searches in Dartford

Builder FAQs

how thick should render be on external wall?

Render serves two basic functions. One is it’s protective qualities as render acts as waterproof for the wall which enables them breathe by allowing water vapour move from the inside to the outside of the structure while also working to prevent water or rain from finding its way inside the structure. While the second function is the decorative qualities as render is able to provide the structure with a fine finish and colour to make the building a lot more appealing and correcting faults in line and level in the masonry.

If you wish to apply render on your external wall, you’d probably be wondering just how thick the render should be to perfectly serve both of functions. In this article, we’re going to take a look at just that!

For a render thickness, the British Standard Wind Driven Rain Index has come up with 4 ratings which include Sheltered, Moderate, Severe as well as Very Severe. An area with Very Severe rating include South West England. This rating implies that the thickness of the render in this area should be increased to at least 20mm for a direct one coat render applications as well as 5 to 6 external wall insulation base coat applications. And if you happen to reside within one mile of the coast, it’s strongly recommended you incorporate an extra repellent protection like Paraguard AG from Parex.

In general, render that’s prepared on site with cement and sand should be have a minimum of 20mm to 25mm thickness. Although, it should be noted that the quality of the render is based on quality of the sand incorporated, the design mix as well as being largely dependent on how good the mixing technique from the applicator is. The most common reasons why traditional renders fails is due to both poor mixing ratios and low quality materials used.

how to convert your loft into a room?

How To Convert Your Loft Into A Room

The loft is the space on top of a home that’s most often ignored by home owners due to having to consider the space’s configuration, the lighting as well as energy efficiency. However, when successfully converted into a room, it can serve several purposes which would even add more value to your property. So how can you convert your loft into a room? Let’s have a look.

• Take Into Account The Size Of Your Loft

The size of your loft is a major determinant of the type of room it can be converted into. A small-sized loft there’s a chance it can still be converted into an extra bathroom or home office while bigger lofts can be converted into an additional bedroom. The minimum head height is 2.3m, if your loft is lower than this, you’d have to get a planning permission to detach some parts of the room for extension.

• Include A Skylight

When a loft is poorly designed, the room become dark, shady and airless. Adding a skylight to your loft will let in fresh air, deliver better ventilation and more light.

• Insulate Your Loft

Loft insulation will not only prevent heat from escaping through the roof, but also lead to an improved energy efficiency which ultimately helps you save up on your heating bills.

• Use Modern Colourization

When you use bright, neutral and modern colours to paint your loft, you’re adding that elegant look to the space. As a result, the loft looks a lot more attractive and comfortable by the time you’re done with the conversion.

The conversion of your loft into a room can be a very tedious task if you wish to do it by yourself. We’d recommend you employ a seasoned professional for help in order to ensure the best results and also to avoid making costly mistakes.

How long does a small extension take?

If you’re planning to build a small extension on your property, you’ll most likely want to know the length of time it’ll take to complete the home extension. Just like many other home improvement projects, it’s impossible to provide a specific number of day in which your project will be completed as the duration is based on a number of influencing factors. This includes the size of the development work as well as whether or not you plan to live in the house when the work is being done. In this article, we’re going to give you a breakdown of the processes that’s involved in building a small single storey extension alongside the duration for each so you can have an idea of how long your small extension project will take. Let’s take a look!

✓ A small single storey extension will normally take about 3 months to be completed.

✓ Site preparation is the first step in the process and it’ll take up to 2 weeks the dig out the footings and prepare foundations. Followed by a further 2 weeks to fit the damp course as well as any drains required around the extension.

✓ The 5th week is spent on working on the external walls and putting in place blockwork to deliver cavity wall insulation.

✓ The next 2 weeks will be spent on installing the roof structure as well as internal walls.

✓ Once done. The builders will make the structure weather proof and electricians or gas fitters will be on site to add power to the extension. This will be followed by internal walls’ plastering as well as breaking into your main house.

✓ After this, when the plaster is dry and decoration completed, units or furniture will then be installed.

How to dot and dab plasterboard?

How To Dot And Dab A Plasterboard

If you want a fast and simple way to achieve a smooth and sturdy wall which is decoration-ready, then dot and dab plasterboard is the way to go! It’s a relative simple process but can also be a bit challenging. Therefore, if you lack the necessary training or experience, hiring a professional would be a great step to protect your investment and guarantee the best results. Here, we’ll provide you with a deep insight into the plasterboard’s dot and dab procedures. Let’s have a look!

• At the thickness of the board with the adhesive, mark the ceiling and floor as well as the wall to indicate the centre of each board.

• Ensure the wall’s height is 15mm more than the plasterboard

• Make a mixture of the adhesive and achieve a thick consistency. Apply a consistent layer of the mixture around the wall’s perimeter, edge of the ceiling and any other openings with the use of a trowel.

• Select dabs that are about 250mm long and 50mm to 75mm wide and apply the adhesive in them. Make use of 3 vertical rows for individual boards. Also ensure to apply, at skirting level, a band of adhesive.

• Position the board’s reverse side against the dabs, and laying against the packers. Then make the board align with the ceiling and floor marks with the help of a straight edge.

• Raise the board till its tight against the ceiling with a board lifter. Once done, use the plasterboard to wedge the board into place before you remove the board lifter.

• Repeat the same process for the remaining parts of the room. Once completed, make sure the adhesive is set before you remove the boards.

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.

How can I find a builder in my area?

Finding a builder nearby can have enormous assistance when it comes to your build. Period on site, their familiarity of local planning permission, constructors’ dealers and other local trades are all vital bits of knowledge that you’ll welcome on site.

It is always wise to walk around in your local area or drive to a site where any construction work is going on. It’ll give you a proper impression of the constructors who are active nearby. You don’t have to like their style of work or the project they are currently carrying out – after all, a builder can only produce what’s on the plans in front of them.

Find a Builder Other Tradesmen Recommend

If you’ve had to call an electrician before or a local plumber and liked their work, you can always ask them if they have any builders whom they would recommend. Maximum tradesmen get used to seeing the similar acquainted names from one place to another in the sites they are working on and every so often has favourites for who they like to work with — and who they see as a good source of work.

Always Talk to Previous Customers

Once you’ve found a builder you would like to work with, ask them for a list of previous customers they have worked with; they ought to be glad to offer particulars if they’re self-assured they’ve done an effective job.

Look for a builder online

A decent place to start looking for builders online is on sites like the ours so that you can find quality tradespeople and see genuine reviews from previous customers. Not all online review sites can be trusted to display real reviews.

are house extensions worth it?

Often referred to by many as the holy grail of home improvements, house extension comes with a wide range of benefits which makes it easy to see why the extension could be a great uptick in the potential price of your property in terms of sales. So if you’re looking to build a new home extension but still not convinced about the project, we’re here to help you. Being fully aware any home construction work is usually a heavy investment, there’s a huge need to be set on your decision before scheduling the commencement of any work. So are house extensions worth it? Below are some of the top benefits offered by house extensions to help you decide if it’s the most suitable route for you.

• Add To Your Home’s Value

Building an home extension is a great way to add value to your home before selling. Increasing the living space of your home is an incredible appeal to many buyers which significantly increases your property’s total value. However, you must ensure that the extension is impressively designed using top quality materials in order to generate more value.

• Good Alternative To House Moving

The most common reason for moving is usually due to a lack of sufficient space, but with house prices steadily on the increase a cost effective alternative is highly sought after. This alternative is house extension which creates more space for the household to spread out and have more privacy.

• You May Not Require A Planning Permission

You can extend your house and still not need to apply for a planning permission. To achieve this, simply comply with the laid down rules set under the permitted development rights.

• Extra Living Space

If you fill you’re starting to outgrow your existing structure and do not buy into the idea of moving, then your best bet might just be to extend your home.

how much does a single storey house extension cost?

If you’re planning to build a single story house extension, this is one of the first questions that usually comes to mind to help you set a budget and start to make plans. But as simple as it seems, a single accurate answer can not be provided due to the fact that there are several variables that can play a key role in influencing the price of a single story house extension. These variables includes the size, location, design or specification as well as the build route. In this guide, we’ll provide you with a rough estimate that you can work with to put you on the right path.

The main determinant of the cost of a single storey extension is the size of the build, while the next most relevant factor is the quality of the finish you opt for. For a small extension, you can expect to spend a sum within the range of £14,000 to £17,000. Meanwhile for a larger single storey extension, if you opt for a large wrap around the extension with a great amount of glass to be incorporated in both the walls and roof, you can expect to pay a sum within the range of £80,000 to £120,000.

Overall, the average cost of a single story house extension is usually within the range of £34,000 to £37,000. For this price, you should get a standard sized rear or side extension which also includes the cost of a kitchen - it’s the most commonly use for a single story extension especially in the UK.

There are some additional costs you may also need to factor in to your extension budget. These includes surveys, architect fees, planning application fee (if needed), insurance and Party Wall Agreement (if needed).

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