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Verified ProOver 50 Reviews

JM Fencing and Landscaping

89 review(s)
Offers services in NORTHWOOD
Mitchell Landscaping have been established for 10 years, offering quality advice and services in landscaping, Gardening a...
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Haas Home Extensions Group

0 review(s)
Offers services in NORTHWOOD
Welcome to Haas Extension Group, where we take pride in being the premier suppliers, installers, and design consultants of...
Verified ProOver 10 Reviews

Stoneartuk

14 review(s)
Offers services in NORTHWOOD
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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Bentham Builders

0 review(s)
Offers services in NORTHWOOD
At Bentham Builders, we specialize in high-quality roofing services as well as general building work across North and West...

Recent Builder Enquiries

24 Nov

Driveway Repair

Northwood - HA6

Enquiry from: Rajul M

Start Date: Immediate

i need some repair works carried out on my driveway and i am looking for a quote for the job. i am based in northwood (ha6) which is not far from watford. i have block brick paving driveway which will...

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08 Aug

Conversion | Loft

Northwood - HA6

Enquiry from: Robert T

Start Date: Immediate

change an existing loft extension into a dormer extension, failing that amend the internal layout. are you the property owner: owner of the property property type: semi detached what are you looking t...

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18 Apr

Insulation | Loft / Roof

Northwood - HA6

Enquiry from: Amit T

Start Date: Immediate

Looking for full insulation of roof. Currently only partly insulated

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19 Nov

Insulation | Loft / Roof

Northwood - HA6

Enquiry from: Shirley D

Start Date: Immediate

advice re loft insulation are you the property owner: owner of the property property type: detached how many bedrooms do you have: 5+ do you currently have loft insulationn: yes do you require a top ...

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13 Aug

House Extensions

Northwood - HA6

Enquiry from: Mughal M

Start Date: Immediate

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

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01 Jun

House Extensions

Northwood - HA6

Enquiry from: Rebecca C

Start Date: Immediate

*homeowner house extension please call to appoint

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08 May

House Extensions

Northwood - HA6

Enquiry from: Soumik J

Start Date: Immediate

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

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19 Oct

House Extensions

Northwood - HA6

Enquiry from: Sukdeep R

Start Date: Immediate

would like a new porch at the front of the property. there is currently no porch, the neighbours all have one. open to design ideas are you the property owner: owner of the property do you have plann...

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18 Feb

Conversion | Loft

Northwood - HA6

Enquiry from: Gaurang S

Start Date: Immediate

loft conversion

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13 Feb

Conversion | Loft

Northwood - HA6

Enquiry from: Ramesh P

Start Date: Immediate

Fully reinsulate existing loft to current building regulations Are you the property owner: Owner of the property Property Type: Semi detached What are you looking to convert the space into: Bedroom/s...

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06 Nov

Conversion | Loft

Northwood - HA6

Enquiry from: Bina P

Start Date: Immediate

Home Owner Loft Conversion Please call to appoint

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29 Aug

House Extensions | Single Storey

Northwood - HA6

Enquiry from: Atif B

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: Relative of Owner Property Type: Detached Looking For: Single...

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02 Jun

Conversion | Loft

Northwood - HA6

Enquiry from: Andy D

Start Date: Immediate

Are you the property owner: Owner of the property Are you looking to have stairs: Yes Do you require any windows: Dormer, Velux Do you require plumbing work: Yes Do you require electrical work: Yes I...

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11 Mar

New Build | Residential

Northwood - HA6

Enquiry from: Muhammad J

Start Date: Less than one month

Demolish old house construct new 400 Sq m 5 bedroom house

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23 Nov

Building work | General

Northwood - HA6

Enquiry from: Catherine G

Start Date: Immediate

Property Type: Other Have you got a rough idea of the design you would like: Some Ideas How many bedrooms are you looking to have: 3-4 Bedrooms How many storeys are you looking for the property to ha...

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05 Jun

Building work | Wall Rendering

Northwood - HA6

Enquiry from: Stuart B

Start Date: Immediate

Front (blockwork) garden retaining wall to be rendered

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24 May

Building work | Wall Rendering

Northwood - HA6

Enquiry from: Sibtain L

Start Date: 1 to 3 months

I am currently re-developing a house and as part of this new build I need to render the external house which is approx 350m2 and wanted to get an indicative cost from you if using K rend or a similar ...

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02 May

Conversion | Garage

Northwood - HA6

Enquiry from: Urmi S

Start Date: Immediate

Garage conversation and front windows

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03 Apr

Conversion | Loft

Northwood - HA6

Enquiry from: Ajay L

Start Date: 1 to 3 months

Please call after 2pm Property owner Loft conversion covering the full width of the rear of the house Please call to appoint

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31 Mar

Conversion | Loft

Northwood - HA6

Enquiry from: Ajay L

Start Date: 1 to 3 months

Loft conversion covering the full width of the rea of the house Are you the property owner: Owner of the property Property Type: 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 Northwood is:

£25,867

Builder job Builder cost in 2025
Garage conversion in Northwood £9,750-£18,450
Loft conversion in Northwood £31,250-£67,917
House extensions in Northwood £32,400-£75,600
Loft insulation in Northwood £450-£690
Upvc or wood porch in Northwood £2,625-£4,025
Barn conversions in Northwood £112,500-£172,500
Basement renovation in Northwood £30,000-£46,000
Bedroom fitting in Northwood £1,500-£2,300
Bricklayers in Northwood £300-£460
Cavity wall insulation in Northwood £400-£820
Commercial new builds in Northwood £105,000-£161,000
Conservatory base in Northwood £675-£1,035
Building maintenance in Northwood £2,250-£3,450
Building insurance works in Northwood £2,250-£3,450
Pebble dashed walls in Northwood £2,000-£9,200
Plasterboard dry lining in Northwood £638-£978
Residential new builds in Northwood £105,000-£161,000
Restoration and refurbishment in Northwood £37,500-£57,500
Roof insulation in Northwood £7,500-£11,500
Underpinning in Northwood £2,250-£3,450
Wall cladding in Northwood £1,125-£1,725
Wall rendering in Northwood £3,750-£5,750
Demolition in Northwood £2,440-£3,660
Roof room in Northwood £15,000-£23,000
Shop refurbishment in Northwood £3,750-£5,750
Single storey house extension in Northwood £21,600-£37,400
Soundproofing in Northwood £900-£1,380
Driveway repair in Northwood £607-£51,140
Garden room in Northwood £6,400-£9,600
External wall insulation in Northwood £6,000-£15,000

Related Builder searches in Northwood

Builder FAQs

how much do roof rooms cost?

How Much Do Roof Rooms Cost?

The price of your roof room may vary depending on your location within the country. Other factors that can also play a key role in determining the price of a roof room includes the conversion’s type as well as the legal and technical issues it’s currently facing. Usually, the cost of roof rooms will range between £1,200 to £2,000 per square metre. The differences in the price per square metre is influenced by the size of the alterations to the roof, the type of roof room to be constructed, the access, location as well as the finishing type.

• DORMER LOFT CONVERSION.

Here, one of the slopes of a pitched roof is substituted for a box-shaped structure. The outcome is a flat roof space which enables the fitting of full sized windows as well as the incorporation of several appliances. This is quite expensive as it involves a total rebuilding of one roof pitch alongside the complete internal works that are associated. The average cost of a standard dormer loft project will range between £25,000 to £50,000.

• HIP TO GABLE LOFT CONVERSION

Here a vertical brick wall is used to substitute the roof’s slope at the ending part of the terrace on detached buildings. The average cost of this type of roof room will range between £32,000 to £60,000.

• ROOFLIGHT LOFT CONVERSION

This basically involves fitting rooflight windows in the roof. Other improvements include flooring, plasterboarding, strengthening of the existing floor, as well as installation of rooflights. The average cost of this type of roof room will range between £15,000 to £25,000.

• MANSARD LOFT EXTENSION

This roof room can create an extra storey on top of an existing building as it makes a space featuring two or four external walls that are a bit sloped. The average cost of this type of roof room will range between £40,000 to £70,000.

Is loft insulation flammable?

When thinking about the right insulation material for your loft, some of the first few things that comes to mind is the various properties of that material as well as how good they fit with your home’s needs.naturally, you’d like to ensure that the insulation will be efficient enough to add to the overall energy efficiency of your home, however there are also other features that may not get as much attention but also happens to be equally important. As the primary function of an insulation is to blanket your house to offer a barrier against heat loss, going for an insulation material that’s also fireproof is crucial as loft insulation can burn. Although most insulation materials are fireproof, a myriad of problems can actually make your insulation burn.

 

For instance, fibreglass insulation is produced using glass combined with plastic polymers and is naturally resistant to fire. However, even at that you’d have to be careful with batts that are supported with foil or paper due to the fact that these materials can burn pretty quickly. Cellulose, on the other hand, is not fireproof and is required to be treated by other flame retardants in order to help reduce combustion. Some of the best insulation materials that are resistant to fire includes the following:

  • Fibre glass. This is made of glass that’s spun into fibres, then combined using plastic polymers. As a result, fiberglass insulation is naturally resistant to fire.
  • Mineral wool. Having a high melting temperature, this insulation material happens to be a great fit for thermal applications due to its superior fire resistant properties. In fact, mineral wool is still naturally non-combustible even if composed of recycled iron and steel by-products, or from actual mineral rock itself.
how much is loft insulation?

More often than not, several homeowners fail to realize there’s so much value sitting right under their roof - the loft. When a loft is insulated, there are so many juicy benefits that can be derived. It can go a long way to save increase you energy savings and several more functions. Therefore, if you really wish to maximize the space under your home’s roof, you’d have to considering insulating it. So how much would it cost to have your loft insulated? Here, you’ll discover the cost of insulating your lofts so you that you can set a budget and start to plan.

 

The cost of insulating a loft is actually affordable for several individuals, however, this depends on a wide range of factors such as the size of the house as well as the type of insulation being installed. One significant factor is the insulating material that you choose to install. If done properly, you’d be able to prevent heat from escaping through the roof of the house which helps improve energy efficiency and ultimately, save you some money on heating bills.

 

If you’d prefer to make it a DIY project and you go for a blanket insulation it costs about £5 per m2. therefore, this will cost within the range of £100 to about £150 for a small home.

 

For a professional service, you’ll be provided with a quote for both the materials and labour. The amount will be based on the number of insulation required, the company hired, your location as well as the method selected. The price to purchase and install blanket insulation  would be between the range of £300 to £400 depending on the size of your home.

where to start with a house extension?

Have you decided to improve your property instead of moving? The common problem most homeowners face after deciding to embark on a home extension project is not knowing where to start. In this article we’ll walk you through everything you need to consider and put in place before commencement of your home extension project.

• Is the extension worth it?

Before breaking the bank, you must be sure that the project will add good value to your home. In terms of “value, this is not only limited to the financial gain after disposal of the property, but also several other juicy benefits to be derived from extending your home like an extra living space for the household to spread out and more.

• Do you need a planning permission?

Check with your local authority to determine whether or not you’ll require to submit an application. You can also consult a building expert like an architect for advice.

• What are the building regulation?

Even though planning permission can be dodged, you can not avoid building regulations. These regulations are the set national minimum standards for construction and design which you must comply with to ensure the safety of the individuals in and around it.

• Who will design the extension?

You have to decided whether you’ll hire a professional architect to design the extension or not.

• Who will manage the building work?

If your home extension project is designed and built by a professional company, they’ll be responsible for the management. However, if you decide to use an architect or designed it yourself, you’ll have to hire a main contractor to manage the build.

• How to set the budget?

There are so many factors that can affect the cost of an extension, so it’s better to get the costs from your builder before proceeding.

• Do I need yo inform my home insurance firm?

Absolutely! This is very important as the new extension may affect the rebuilding cost of your property which could have an impact on the policy premium.

• Do I need to inform my neighbours?

It’s very important to discuss your plan with your neighbours before applying for a planning permission and communicate about the concerns they might have.

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.

What is the ratio of sand and cement for bricklaying?

When it comes to laying of bricks, it is essential to get the right mortar mix. It is vital, be it for construction or maintenance projects, so far mortar is required. There are several materials incorporated in getting mortar which includes both cement and sharp sand, soft sand or plasterer’s sand and lots more. Here, we are going to look at the right ratio for cement and sand mix in bricklaying.

Cement include ingredients such as iron, aluminium, as well as silicon and it is mainly used for mortars like aerated cement mortar, Portland cement mortar and gauged mortar. Sand, on the other hand, comes in different forms such as sharp sand, soft sand and plasterer’s sand. The sharp sand consists of a larger grain size than the others and is usually incorporated in the construction areas that requires more strength as well as flexibility. Soft sand is the most common one used in mortar and it’s also referred to as bricklayers’ sand. These are used to make all types of mortar. Finally the plasterer’s sand which neither has the sharp sand’s coarseness nor the fineness of the soft sand, but can also be used for any form of mortar.

Cement and sand mortar is used for a plethora of bricklaying jobs serving as a glue for bricks, walls and pillars, while also repairing or maintaining old listed buildings. The preferred ratio here is 1:3 to 1:5 of cement and building sand. Meanwhile, to get a sand cement mix, essential materials that are required includes water, soft building sand as well as cement. However, you must also note that a sand and cement mortar is not used for structural projects, rather a concrete ratio is used.

how much does a garden room cost?

Adding a garden room to your property is a great way of creating an additional space within your home without having to invest heavily in large house extension projects. And not only does it expand your living space, but it’s also a way to add good value to your home or property. With the various benefits offered by a garden room, most individuals are usually surprised with just how affordable the living space can be. However, just like any other home improvement, the price of a garden room is influenced by a wide range of factors. These factors include the design you opt for whether standard or customized, the size of the garden room, the materials used, the number of fixtures and fittings you want as well as any other special design feature you require.

Asides from the money needed to put up the structure, there are also some common extra cost that’ll also be expended for both the interior and exterior of the living space. For instance, there are some furnitures and fittings that you’d like to put in your garden room and these will also form part of the overall cost. There’s also the electrical connections cost and this will vary depending on the distance of your room, the cables to be used as well as your electrician. For this part, you can expect to spend anything within the range of £850 to £1200 and since it’ll be used all year long, it’ll also require appliances for heating, insulation, electricity and ventilation.

Generally, the overall cost you should be expecting to pay for a modular build garden room will range between £10,000 to £40,000.

an every house have a loft conversion?

If you’re having issues with the amount of space in your home and need an extra space without affecting your garden, loft conversion comes to mind. Not only is it a great solution to creating more living space within a home, but it’s also one of the most budget-friendly solutions you can count on to expand your space by thinking upwards rather than sideways. So if you’re thinking about converting your loft, one thing that almost immediately comes to mind is whether or not your house is suitable for loft conversion.

To answer the question of whether every house can have a loft conversion is a very simple one. Generally, not every house is suitable for loft conversion. This is due to the fact that each and every loft space - from the stairways below and floors to the rafters and the roof up above, is unique. Therefore, the best way to really figure out whether or not a house’s loft offers the potential for conversion is to get in touch with a loft specialist.

So what can make a house not suitable for a loft conversion? Let’s take a closer look!

✓ A house will not be suitable for a loft conversion if the height of the ceiling happens to be too low and it’ll not be possible to have it raised.

✓ If you do not own own the freehold to the loft space, you won’t be able to convert the loft. Surprisingly, this happens to be a common issue in London.

✓ You will not be able to convert your loft if you reside in a conservation area or in a listed building. But you can identify a design solution that’ll still comply with the conservation rules and keep planners happy.

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