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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...
Verified ProOver 20 Reviews

Thomas Roof Restoration

25 review(s)
Offers services in SWANLEY
Thomas Roof Restoration are proud to work on your property as if it were their own. Based in Canterbury, covering Kent, So...
Verified Pro

Loft & Build

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

Primo Contractor

0 review(s)
Offers services in SWANLEY
At Primo Contractor Ltd, we are a construction company deeply committed to delivering both domestic and commercial renovat...
Verified Pro
Welcome to First Response Contractors Ltd!, we are a company with over 18 years of experience that prides itself on qualit...

Recent Builder Enquiries

29 Jun

Conversion | Loft

Swanley - BR8

Enquiry from: Jeyher P

Start Date: Immediate

loft conversion quote for ***ft 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 stairs:...

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13 Oct

Building work | General

Swanley - BR8

Enquiry from: PAUL M

Start Date: Immediate

Property type: Other, Roof type: Pitched, Work description: Replace low pitched garage metal roof with clay or rubber or pvc. Garage is 5x6m.

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01 Sep

House Extensions

Swanley - BR8

Enquiry from: Rafal K

Start Date: Less than one month

customer in swanley area made an enquiry for house extension online. please call to arrange an appointment to discuss options are you the property owner: owner of the property looking for: single sto...

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01 Sep

House Extensions | Single Storey

Swanley - BR8

Enquiry from: Rafal K

Start Date: Less than one month

customer has a extensions & conversions project they are looking to have done, specially they want quotes for single storey house extension. they are unsure of options so would like to discuss with a ...

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09 Jul

Conversion | Loft

Swanley - BR8

Enquiry from: Nicholas G

Start Date: Immediate

I would like to add stairs to my loft.

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01 Mar

Conversion | Loft

Swanley - BR8

Enquiry from: Julie C

Start Date: Immediate

i require a rear dormer loft conversion to a small/medium mid terrace property built pre 1930s. are you the property owner: owner of the property property type: terrace what are you looking to conver...

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12 Feb

House Extensions | Single Storey

Swanley - BR8

Enquiry from: Ina H

Start Date: Immediate

customer is currently in the process of looking for quotes to add a single storey extension to their property. are you the property owner: owner of the property property type: semi detached looking fo...

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12 Feb

House Extensions

Swanley - BR8

Enquiry from: Ina H

Start Date: Immediate

extension from the garage onwards to the back with shower room and utility. are you the property owner: owner of the property looking for: single storey extension do you have planning permission: no d...

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11 Feb

Conversion | Loft

Swanley - BR8

Enquiry from: Julie C

Start Date: Immediate

i require a rear dormer loft conversion to a small/medium mid terrace property built pre 1930s. are you the property owner: owner of the property property type: terrace what are you looking to conver...

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01 Jan

Conversion | Loft

Swanley - BR8

Enquiry from: George L

Start Date: Immediate

Customer visited the myloftconversionprices.co.uk site and submitted an enquiry. Property type: Semi detached, Property owner: Tenant (with permission), Looking to convert into: Bedroom, Work descri...

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28 Nov

House Extensions

Swanley - BR8

Enquiry from: Farida S

Start Date: Immediate

are you the property owner: owner of the property how many windows do you require: what level of service do you require: supply and fit other forms: house extension agreed to receive quotes for selec...

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28 Nov

Building Work | Porch

Swanley - BR8

Enquiry from: Farida S

Start Date: Immediate

hello, i’m in the process of buying this house in swanley and would like to add an in closed porch front door porch .i have a picture of how i would like it to look but flexible if you come up with ...

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17 Feb

House Extensions | Single Storey

Swanley - BR8

Enquiry from: Alex P

Start Date: 1 to 3 months

Customer is currently in the process of looking for quotes to add a Single storey extension to their property. Are you the property owner: Owner of the property Property Type: Semi detached Looking Fo...

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17 Feb

House Extensions

Swanley - BR8

Enquiry from: Alex P

Start Date: 1 to 3 months

1 x 2m porch dwarf wall and tiled roof. Are you the property owner: Owner of the property Looking For: Single storey extension Property Type: Semi detached Do you have planning permission: No Do you ...

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19 Jan

Insulation | Loft / Roof

Swanley - BR8

Enquiry from: Ifeanyi U

Start Date: Immediate

Are you the property owner: Owner of the property How many bedrooms do you have: 3-4 Property Type: Semi detached Do you currently have loft insulationn: No Age of Property: 1930-70 Are you interested...

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26 Dec

Insulation | Loft / Roof

Swanley - BR8

Enquiry from: Ifeanyi U

Start Date: Immediate

Are you the property owner: Owner of the property How many bedrooms do you have: 3-4 Property Type: Semi detached Do you currently have loft insulationn: No Age of Property: 1930-70 Are you interested...

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02 May

Insulation | Loft / Roof

Swanley - BR8

Enquiry from: M H

Start Date: Immediate

Customer visited the myroofingquotes.co.uk site and submitted an enquiry. Property type: House, Roof type: Pitched, Work description: On a large housing refurbishment project, Take off roof til...

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29 Jan

House Extensions

Swanley - BR8

Enquiry from: Claire H

Start Date: 3+ months

3m single story extension Homeowner Please contact to appoint

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26 Jan

Conversion | Loft

Swanley - BR8

Enquiry from: Darren M

Start Date: 1 to 3 months

Home Owner Call to Appoint Are you the property owner: Owner of the property Property Type: Semi detached What are you looking to convert the space into: Living space Are you looking to have stairs:...

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03 Jan

House Extensions

Swanley - BR8

Enquiry from: Matt W

Start Date: 3+ months

Customer visited the myhouseextension.co.uk site and submitted an enquiry. Property type: Semi detached, Work description: 2 bed and lough dinner

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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 Swanley is:

£25,128

Builder job Builder cost in 2025
Garage conversion in Swanley £9,750-£18,450
Loft conversion in Swanley £32,188-£70,938
House extensions in Swanley £32,400-£75,600
Loft insulation in Swanley £450-£690
Upvc or wood porch in Swanley £2,625-£4,025
Barn conversions in Swanley £112,500-£172,500
Basement renovation in Swanley £30,000-£46,000
Bedroom fitting in Swanley £1,500-£2,300
Bricklayers in Swanley £300-£460
Cavity wall insulation in Swanley £400-£820
Commercial new builds in Swanley £105,000-£161,000
Conservatory base in Swanley £675-£1,035
Building maintenance in Swanley £2,250-£3,450
Building insurance works in Swanley £2,250-£3,450
Pebble dashed walls in Swanley £2,000-£9,200
Plasterboard dry lining in Swanley £638-£978
Residential new builds in Swanley £105,000-£161,000
Restoration and refurbishment in Swanley £37,500-£57,500
Roof insulation in Swanley £7,500-£11,500
Underpinning in Swanley £2,250-£3,450
Wall cladding in Swanley £1,125-£1,725
Wall rendering in Swanley £3,750-£5,750
Demolition in Swanley £2,440-£3,660
Roof room in Swanley £15,000-£23,000
Shop refurbishment in Swanley £3,750-£5,750
Single storey house extension in Swanley £21,600-£37,400
Soundproofing in Swanley £900-£1,380
Driveway repair in Swanley £1,520-£2,280
Garden room in Swanley £6,400-£9,600
External wall insulation in Swanley £6,000-£15,000

Related Builder searches in Swanley

Builder FAQs

How to renovate a house?

As with every home development project, a home makeover comes with heaps of preparation and, hard work, but it is a remarkable way to breathe new life into an old home.

RESEARCH PERIOD FEATURES AND SAFEGUARD THEM

Get to know your household better, the time it was constructed in, and the kind of individuals who would have lived there. The greatest tactic is to repair current structures, make the house dry and safe.

CHECK FOR RENOVATION RESTRICTIONS BEFORE YOU START

There are certain restrictions that don’t allow you to remodel your house after a certain extent, it should be made clear to you when you purchase the property but if you are unsure about the regulations you should check them up, as it is a criminal offence to carry out unauthorised work to a listed home. Restrictions in Conservation Areas generally affect only the exterior of the property as the intention is to ‘preserve or enhance the character or appearance’ of an area, but the right to develop your house will be affected. This means the kind of work that you could have easily completed in a different location may need certain planning and even permissions to complete in your area.

CREATE A DESIGN FOR YOUR HOUSE RENOVATION

It is very important that you take your time to perfect the design. This will help to ensure that the finished work is in tune with your needs. You will also need to figure it out how the changes might play with the original building.

FIND THE BEST CONTRACTORS FOR YOUR RENOVATION

If you are planning on managing the renovation project yourself, it is advisable to ask from friends or family who have renovated their house before and have undergone a similar experience. They can help you find the right architect and builder. Or else, you can always opt for a project manager.

How much plasterboard do I need?

How Much Plasterboard Do I Need?

Although many people especially contractors have a tough time estimating the number of drywall or plasterboard needed to complete a project, it’s a rather simple task if all factors are taken into consideration. If you’re able to follow the same procedures taken by professionals to count dry wall sheets, you’ll be in the right direction. Let’s have a look at the procedures to follow!

lTake Square Footage Measurement

• Measure the square footage of the area where the plasterboard will be fitted.

• Multiply the height by the width of each wall or ceiling area.

• Add all quantities to obtain a total square-foot amount.

lCalculate Drywall Sheets

• To calculate the number of drywall or plasterboard sheet is very simple once you’ve gotten the total square footage.

• To get started, simply divide the total square footage of area by 32 (that’s if you are using a 4 by 8 sheets) or you can also make use of 48 to make the division (only if you’re making use of the 4 by 12 sheets).

• The answer you get after the division will give you the full number of plasterboard sheets that’s required to complete the project.

We’d recommend you include an extra 10 to 15 percent of whatever you calculate to take care of the possible odd cuts and wastages. This implies that if your total area is 1600 square feet while incorporating 4 by 8 sheets, simply divide 1600 by 32 which equals 50 sheets, now take 10% of 50 which equals 5, then add back the 5 extra to the 50 sheets earlier calculated to get 55 sheets. If you wish to estimate the cost, simply multiply the number of sheets gotten by the price per sheet. Do not forget to include delivery charges and local taxes.

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.

how much does a two storey house extension cost?

If you’re considering adding a two storey house extension, then setting a budget for this project would be a great way to get started. Similar to a rear extension, a two storey extension usually leaves the rest of the building needing some work and, due to its size, this may imply the re-development of the entire house - which is why they can be very costly. Some of the other influencing factors that can have big impact on a two storey house extension cost includes: your location, the size of the build, complexity of the design ( anything beyond the standard build will normally require more expertise and time), the glazing to be incorporated ( the more the glass used in the project, the more the material cost), as well as the team used.

Generally, when it comes to extensions, the major part of the expenses will be made on the build of the project. This is because it doesn’t only cover the material cost but also the contractor’s overhead as well as the daily rates. At this stage, the extension prices can be determined by the standard of the work that’s being done.

For a fairly average room size of about 18 square metre, the two storey extension should cost within the range of £2,500 to £3,000 per square metre - with the range being determined by the finishes incorporated. Therefore, a two storey extension of about 18 square metre should cost within the range of £45,000 to £55,000. However, this is with the assumption that there are standard window sizes, bathroom suits are modest, and without any need for any purpose joinery or glazing. If you wish to include all these extra features you’ll also have to pay more to make the total cost between £70,000 to £80,000.

do you need planning permission for a garden room?

So you’ve identified the type of garden room you’d like to construct in your property, chances are, you’ve already worked out where to put it and can’t wait wait to start spending valuable time on it. It’s very understandable to be a little impatient with the whole idea considering the numerous benefits provided by a garden, but just before you proceed with your plans there’s the need to first check whether or not you’re going to need a planning permission.

Factors determining whether you’ll need a planning permission includes where you intend to place it, the size of the room, how it’s going to be used as well as your location.

Generally, most garden rooms do not require a planning permission as they are categorized as outbuildings. In other words, you’re permitted to construct one so far you comply with some specific rules and have permitted development rights at your home or in your area.

If you want to build your garden room under permitted development, you have to comply with the following rules:

✓ The garden room shouldn’t be in front of your home or property.

✓ The total area of your extensions, sheds and outbuildings ( which includes your garden room), must not go beyond 50 percent of the total land area surrounding your property.

✓ It must be a single storey that’s less than 3 metres high ( 4 metres for a dual pitched roof). And it must not go beyond 2.5 metres in height if the structure is within 2 metres of your boundary.

✓ The eaves must not go beyond 2.5 metres above ground level.

✓ It must not feature a balcony, veranda or any raised platform

✓ It must not be a self contained living accommodation.

You should note that if your home is a listed building or you happen to live in a designated area, then you might not have permitted development rights.

do i need planning permission for a kitchen extension?

If you’re planning to construct a kitchen extension on your property, one of the first things that comes to mind is whether or not you’ll require a planning permission before you proceed. Generally, kitchen extensions are normally classified as permitted development which allows you to carry out your project without any interruptions from the law or your local authority. In other words, if your extension is meets up with the guidelines of the permitted development rights, you won’t have to apply for a planning permission. However if otherwise, you’ll have to apply for a planning permission to your local council and may require additional reports. And regardless of your position, you’ll always need building regulations approval before you can carry out any kitchen extension project. It may also be required that you’ll have to issue a part wall notice if you’re to build on or close to the boundary with a neighbour.

If you don’t want to go through the hassle and stress involved in applying for a planning permission with your local council, then you must ensure the following:

✓ Your kitchen extension must not be over half of the area of land around your main house.

✓ The kitchen extension must not be side elevation onto a highway or forward of the principal elevation.

✓ The extension must not be taller than the highest part of the roof.

✓ The height of your kitchen extension must not go beyond four metres.

✓ Kitchen extension that’s more than one storey must not go exceed the rear wall of the main house by more than three metres.

✓ Two storey kitchen extensions must not be closer to rear boundary by anything less than seven metres.

✓ The kitchen extension must not include balconies, verandas or any raised platforms.

How to convert a basement into an apartment?

In some cases, it’s possible to convert a basement into an apartment. This can be a great way to incorporate an additional dwelling into your property and increase its value. However, converting a basement into an apartment can be quite expensive and time-consuming.

As with any type of dwelling, you’ll need to think about basic things like access, damp proofing, ventilation, insulation, heating, electrics, plumbing, lighting and décor. If you’re planning on extending your basement, then you’ll also need to ensure that your property is sufficiently supported.

It’s a good idea to consult a professional, like a basement conversion building specialist, to find out how feasible your project is before you go ahead with it.

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.

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