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Haas Home Extensions Group

0 review(s)
Offers services in CHALFONT ST GILES
Welcome to Haas Extension Group, where we take pride in being the premier suppliers, installers, and design consultants of...
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Stoneartuk

14 review(s)
Offers services in CHALFONT ST GILES
Hi my name is Martin from stone art uk ltd we are a local run landscaping company within the Pinner area we specialise in ...
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Primo Contractor

0 review(s)
Offers services in CHALFONT ST GILES
At Primo Contractor Ltd, we are a construction company deeply committed to delivering both domestic and commercial renovat...
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Loft & Build

0 review(s)
Offers services in CHALFONT ST GILES
We can cover all aspects of a loft conversion and extensions. If you require, we can also design the project including dr...
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Home Counties driveways and patios

13 review(s)
Offers services in CHALFONT ST GILES
Welcome to Home Counties, our team handle projects large and small from residential to commercial. Our Driveway service...

Recent Builder Enquiries

29 Aug

Insulation | HHCRO Free

Chalfont St. Giles - HP8

Enquiry from: Adam S

Start Date: 1 to 3 months

loft insulation, including knee-wall insulation plus advice on other insulation options including underfloor and internal or external cladding time scale: 1-3 months please call to appoint

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28 Oct

Insulation | HHCRO Free

Chalfont St. Giles - HP8

Enquiry from: Adam S

Start Date: 1 to 3 months

loft insulation, including knee-wall insulation plus advice on other insulation options time scale: 1-3 months please call to appoint

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01 Oct

Building work | Sound Proofing

Chalfont St. Giles - HP8

Enquiry from: Ray A

Start Date: Immediate

New house. Have used small wood burning stove occasionally, no more than 30 times. Smoke came back into room when we used it in January 2021. Tested it in July. Same thing happened. Quote please. Ray

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05 May

Building work | Bricklaying

Chalfont St. Giles - HP8

Enquiry from: Angus M

Start Date: Immediate

we are the main contractor on the project to demolish and rebuild the above. we have a requirement for a blockwork contractor within the next 10 days we would like to it local are you the property ow...

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12 Nov

House Extensions

Chalfont St. Giles - HP8

Enquiry from: Lee R

Start Date: Immediate

I need a number of drainpipes replaced with plastic ones. Are you the property owner: Owner of the property Property Type: Semi detached Would you like the windows supplied and installed: No Do you re...

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06 Nov

Insulation | Cavity Wall

Chalfont St. Giles - HP8

Enquiry from: GIANLUCA O

Start Date: Immediate

We need a wall insulATION FOR A SEMI-DETACHED HOUSE.

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09 Jun

Building work | General

Chalfont St. Giles - HP8

Enquiry from: David S

Start Date: Immediate

We have a 400 sq meter garage floor of ridged concrete flooring. we wish to install a self levelling screed to the area. I t is for domestic use only and gets little traffic. In selective areas the co...

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23 Oct

Conversion | Loft

Chalfont St. Giles - HP8

Enquiry from: B

Start Date: Immediate

Loft conversion

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02 Sep

House Extensions

Chalfont St. Giles - HP8

Enquiry from: Andrew M

Start Date: Immediate

Home Owner Single Storey Extend living space Assist with Plans and planning permission Supply And Install Call To Appoint *

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19 Aug

House Extensions

Chalfont St. Giles - HP8

Enquiry from: Andrew M

Start Date: Immediate

Home Owner Single Storey No Plans Drawn Up Supply And Install Call To Appoint *

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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 Chalfont St Giles is:

£24,739

Builder job Builder cost in 2025
Garage conversion in Chalfont St Giles £9,750-£18,450
Loft conversion in Chalfont St Giles £18,750-£28,750
House extensions in Chalfont St Giles £29,000-£62,667
Loft insulation in Chalfont St Giles £450-£690
Upvc or wood porch in Chalfont St Giles £2,625-£4,025
Barn conversions in Chalfont St Giles £112,500-£172,500
Basement renovation in Chalfont St Giles £30,000-£46,000
Bedroom fitting in Chalfont St Giles £1,500-£2,300
Bricklayers in Chalfont St Giles £300-£460
Cavity wall insulation in Chalfont St Giles £400-£820
Commercial new builds in Chalfont St Giles £105,000-£161,000
Conservatory base in Chalfont St Giles £675-£1,035
Building maintenance in Chalfont St Giles £2,250-£3,450
Building insurance works in Chalfont St Giles £2,250-£3,450
Pebble dashed walls in Chalfont St Giles £2,000-£9,200
Plasterboard dry lining in Chalfont St Giles £638-£978
Residential new builds in Chalfont St Giles £105,000-£161,000
Restoration and refurbishment in Chalfont St Giles £37,500-£57,500
Roof insulation in Chalfont St Giles £7,500-£11,500
Underpinning in Chalfont St Giles £2,250-£3,450
Wall cladding in Chalfont St Giles £1,125-£1,725
Wall rendering in Chalfont St Giles £3,750-£5,750
Demolition in Chalfont St Giles £2,440-£3,660
Roof room in Chalfont St Giles £15,000-£23,000
Shop refurbishment in Chalfont St Giles £3,750-£5,750
Single storey house extension in Chalfont St Giles £21,600-£37,400
Soundproofing in Chalfont St Giles £900-£1,380
Driveway repair in Chalfont St Giles £607-£51,140
Garden room in Chalfont St Giles £6,400-£9,600
External wall insulation in Chalfont St Giles £6,000-£15,000

Related Builder searches in Chalfont St Giles

Builder FAQs

Can my loft be converted?

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

What kinds of loft conversion are there?

There’s a huge range of different types of loft conversions. The most common are dormer and skylight or Velux conversions. There are also hip to gable and mansard conversions. The type of loft conversion that’s most suitable for your property will depend on the style of roof and the size of your loft.

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 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.

how disruptive is a loft conversion?

Asides the questions relating to planning permission of a loft conversion as well as the total cost of completing a loft conversion project, this is perhaps the most common question on the loft conversion subject matter. Before making an investment decision, many homeowners will want to know just how disruptive a loft conversion is. Well, we’ve all heard the several horror stories when loft conversion builder with dirty boots tramples all over the fresh and just-acquired shag pile or the noise of the construction loud enough to annoy neighbours from four blocks away or an obvious shortage of teabags, sugar and lots more. Good news is, the disruption of loft conversion is not as bad as people make out. Let’s have a look at how it works!

Just like all other major building projects, a loft conversion is disruptive to your property. However, no two loft conversions are the same, therefore some are certain to be more drastic and invasive than others. In the long run, the project is worth the stress and inconveniences caused and in most cases, it’s usually a very good investment.

Normally, an average loft conversion is expected to last for about 9 to 12 weeks (depending on the complexity of the loft conversion project some might take longer). Some of the factors that affects the duration of a project includes the type of the loft, the design of the loft as well as the style of the property.

Generally, a loft conversion is a lot less disruptive than say completely moving a home. It all has to do with how you’re able to deal with it as a person. And besides, the effect it’s going to have to a large extent depends on the company you hire. A good company will always look to ensure to keep disruptions to a minimal when carrying out the loft conversion project.

is a porch made from uPVC?

The simple answer to this question is... they can be! Although there are many types of porch designs that are available in the market, the uPVC porch happens to be one of the most loved and cost effective. Most home and property owners prefer the installation of a uPVC porch for a number of reasons. These includes:

• Value for money

It’s no coincidence the uPVC is widely accepted across the building industry with a plethora of uses. Not only is it relatively inexpensive to manufacture, but even the recycled uPVC is now becoming more and more useful. UPVC’s main rivals are wood and aluminium, and both are way more expensive to incorporate for frame profiles. Therefore, making use of uPVC is going to make your initial costs relatively low.

• Life Span

Although the main rivals in both hardwood and aluminium can also boast a lengthy lifespan just as uPVC. However, considering the price that you can get a uPVC, the lifespan is just incredible as it can be measured in decades.

• Aesthetic Appeal

UPVC gives you a wide range of foil colours that’ll fit your home perfectly well while also enhancing it’s visual appeal. You can actually get a porch that looks exactly like it’s manufactured from timber frames. To achieve this, all you need to do would be to make use of a wood grain surface finish. This is also long lasting, strong and resistant to fade.

• Little Maintenance

This is a very common feature of uPVC that makes it even more advantageous when used in making a porch. Unlike timber or wood which swells due to absorption of water or shrinks, you’ll never need to worry about all these distortions and more with uPVC. No painting, no sanding and ultimately, low maintenance required.

How to find a builder for a house extension?

Builders are everywhere, but finding one for your project can be tricky and stressful, with both cost and reliability coming into question. This is even more worrisome when you’re fully aware that your house extension can only be as good as the builder. If you’re also facing the same challenge, then you’ve come to the right place. In this article, we’ll share with you some tips on how to choose a professional and reliable builder who’ll ensure you get immense value for every penny spent. Let’s take a look!

✓ Ask for recommendations. To find a tradesperson, not just a builder, personal recommendations is the best way to go. Building a house extension is a major undertaking which comes with a lot of costs, so if you’re going to do it the least you can do is ensure you do it right. Carry out your research, ask friends and family, neighbours and loved ones if the know of any reliable builder in the local area. If they’ve have one they’ve used, you can request for the cost, quality of the job done, the duration of the project and any other detail you feel you should know.

✓ Search Online. Use our search feature to look at the builders available or submit and enquiry and we will find you one. Our site holds details of numerous builders and building companies which you can go through their ratings to select the best.

✓ Select a reliable builder from trading association. Most reliable builders are usually a member of a recognized trading association or the other. Though this is not obligatory for builders, but it can be used as a dependable medium to find a good builder. We list what trade association the builders are a member of.

Which type of insulation is best?

The best type of insulation for your property will depend on the type of walls and any insulation that’s already present. It’s usually a good idea to have some form of wall insulation as well as loft insulation, as this helps to prevent heat loss in both areas.

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