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Hilson Roofing

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Offers services in HARROW
Your friends in High Places We cover all aspects of roofing from minor repairs to full design and install We are quali...
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CRS Contractors

20 review(s)
Offers services in HARROW
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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Loft & Build

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Offers services in HARROW
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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Coastal Prime

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Offers services in HARROW
Coastal Prime Ltd provides expert home insulation services across the UK, helping homeowners enhance energy efficiency and...
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Ring for free survey our quotes on budget on time .we offer insurance backed guarantees members of confederation of roofin...

Recent Builder Enquiries

05 Nov

Conversion | Loft

Harrow - HA3

Enquiry from: Viju U

Start Date: Immediate

Customer made enquiry for Loft Conversion quotes online. Homeowner lives in Harrow area. Please call to arrange appointment

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26 Oct

House Extensions

Harrow - HA3

Enquiry from: Divyaba R

Start Date: Immediate

Customer is looking for House Extension quotes. They are unsure of options so would like to discuss. Confirmed interest via Customer lives in Harrow area Please call to arrange an appointment

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30 Aug

Conversion | Garage

Harrow - HA2

Enquiry from: Hashim H

Start Date: Immediate

I want to convert a semi-detached garage into a study room. The garage roof is removed (no roof at the moment).

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28 May

Building Work | Porch

Harrow - HA3

Enquiry from: Rasik V

Start Date: Immediate

are you the home owner of that property? - -yes. are you replacing an existing porch or is this a new build? - new vbuild. what material do you require, upvc? - unsure. what colour do you want it to b...

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28 May

Building work | Wall Cladding

Harrow - HA2

Enquiry from: Kieran C

Start Date: Immediate

Upvc wall cladding to front of house

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07 Mar

Conversion | Garage

Harrow - HA2

Enquiry from: Shanth K

Start Date: Immediate

I want to covert my garage into studio

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23 Jan

House Extensions

Harrow - HA1

Enquiry from: Mahmood K

Start Date: Immediate

Flat roof kitchen extension at rear. Labour only builder required. All my material

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11 Aug

House Extensions

Harrow - HA2

Enquiry from: Archit J

Start Date: Immediate

Rear extension squaring off. We have half of the width of the house already extended to the rear. Now want to square it off by extending the remaining ~4 meter width to similar 6 meter depth. So area ...

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05 Apr

Interior work | Stud Walls

Harrow - HA3

Enquiry from: Praful P

Start Date: Immediate

one partition wall to be removed and another new to put up

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22 Aug

Insulation | Cavity Wall

Harrow - HA3

Enquiry from: Manji K

Start Date: Immediate

customer has a insulation project they are looking to have done, specially they want quotes for cavity wall insulation. they are unsure of options so would like to discuss with a builder.confirmed int...

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14 Jun

Insulation | External Wall

Harrow - HA2

Enquiry from: Carol C

Start Date: Immediate

External wall insulation. Terraced house.

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23 Feb

New Build | Residential

Harrow - HA3

Enquiry from: Odagiu G

Start Date: Immediate

My name is George and im Consultant at Visla Recruitment agency,we are specialized in Construction Sector what we bring to the table in a posibile cooperation : -Large and stable data base of expe...

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29 Jan

Conversion | Loft

Harrow - HA2

Enquiry from: Kevin B

Start Date: Immediate

looking at the possibility of changing existing older style loft extension to dormer style loft extension. looking for advice, costs and timescales for consideration. are you the property owner: owner...

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06 Dec

House Extensions

Harrow - HA3

Enquiry from: S Nasir Z

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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14 Nov

Conversion | Loft

Harrow - HA3

Enquiry from: Aurelia L

Start Date: Immediate

upgrade velux to dormer. the sellers have had a loft conversion done in 2020 (without building regs and planning permissions) so we would like to rectify this and apply for full permissions for this p...

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06 Nov

Conversion | Loft

Harrow - HA2

Enquiry from: Ashish J

Start Date: Immediate

I looking for an architect to prepare a drawing for the loft conversion and the extension in the back garden and take permission from the Harrow council.

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22 Oct

Conversion | Loft

Harrow - HA2

Enquiry from: Ashish J

Start Date: Immediate

I looking for an architect to prepare a drawing for the loft conversion and the extension in the back garden and take permission from the Harrow council.

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25 Sep

Building Work | Porch

Harrow - HA1

Enquiry from: Gyguyugu Y

Start Date: Immediate

build a porch in front of the house what material would you like the roof made from: tile what material are you looking for: wood what material are you looking for: what material would you like the r...

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24 Sep

Driveway Repair

Harrow - HA3

Enquiry from: Nik P

Start Date: Immediate

Inspect cause of damage. Assessment of damage; raised paving, suspected tree damage. Re-level paving slabs.

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22 Sep

Building work | Refurbishment

Harrow - HA1

Enquiry from: Ranjth R

Start Date: 1 to 3 months

refurbishment of 3 bed terraced house in stantonbury, milton keynes. new kitchen, bathroom, and decor throughout. painting and new flooring. new wiring and plumbing too. possible flooring of the loft ...

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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 Harrow is:

£24,786

Builder job Builder cost in 2026
Garage conversion in Harrow £9,834-£19,634
Loft conversion in Harrow £29,688-£64,688
House extensions in Harrow £32,000-£73,000
Loft insulation in Harrow £300-£3,714
Upvc or wood porch in Harrow £2,625-£4,025
Barn conversions in Harrow £112,500-£172,500
Basement renovation in Harrow £30,000-£46,000
Bedroom fitting in Harrow £1,500-£2,300
Bricklayers in Harrow £300-£460
Cavity wall insulation in Harrow £384-£4,607
Commercial new builds in Harrow £105,000-£161,000
Conservatory base in Harrow £675-£1,035
Building maintenance in Harrow £2,250-£3,450
Building insurance works in Harrow £2,250-£3,450
Pebble dashed walls in Harrow £2,000-£9,200
Plasterboard dry lining in Harrow £638-£978
Residential new builds in Harrow £105,000-£161,000
Restoration and refurbishment in Harrow £37,500-£57,500
Roof insulation in Harrow £2,650-£7,317
Underpinning in Harrow £2,250-£3,450
Wall cladding in Harrow £1,125-£1,725
Wall rendering in Harrow £3,750-£5,750
Cero insulation in Harrow £225-£6,000
Insulation scheme (hhrco) in Harrow £250-£10,000
Demolition in Harrow £2,440-£3,660
Roof room in Harrow £15,000-£23,000
Shop refurbishment in Harrow £3,750-£5,750
Single storey house extension in Harrow £24,400-£44,934
Soundproofing in Harrow £575-£25,690
Driveway repair in Harrow £607-£51,140
Garden room in Harrow £6,400-£9,600
External wall insulation in Harrow £2,250-£10,000

Related Builder searches in Harrow

Builder FAQs

how to build a garden room?

With homeowners now a lot more unwilling to move or make any costly extensions due to the uncertainty that lies ahead in the property market of the UK, a garden building which represents a cheaper alternative seems to be the best option available. Not only is it one of the most affordable ways to add space to your home while staying within your budget, but it’s also one of the best ways to add immense value to your property as more and more potential home investors are now seeking properties with an outdoor garden room. They’re the perfect investment for those looking to expand their space without having to carry out huge extension projects which normally consumes both time and money.

Garden rooms are best built by professionals to guarantee the best results. However, if you feel confident enough to undertake the project, then this guide will give you an idea of the process.

✓ Build the foundation. Here you can build the foundation using concrete, but in cases whereby there are root systems closeby then you can make use of low impact screw piles.

✓ Start the construction process with timber frame, SIP panels as well as other modular components and materials

✓ Once you’re done with the construction process, the next course of action will be to develop and position the roof structure on to the top of the newly constructed garden room. Here, you can also decide to use sun pipe and solar heating or PV panels. You can also protect the construction from the elements by making use of cedar cladding.

✓ Doors installation. The best type of doors to use here are draught sealed doors which can also be treated hardwood or powder coated aluminium .

✓ Make the finishing touches here and there and make sure all connections are complete.

What is a bricklayer?

This is an individual who is trained in the art of working with concrete blocks or bricks, clay bricks as well as other kinds of mortar building materials. In a combination of these materials and good bricklaying skills, a bricklayer can build and repair veneer as well as full brick construction, arches, partitions and other structures.

Contrary to many beliefs, a bricklayer actually does more than laying of bricks. There’s more to being a bricklayer than you can probably think of. A single bricklaying projects requires a wide array of skills. Let’s have a look at these skills!

• Using damp resistant materials to seal foundations.

• Spreading mortar between joints and applying them to serve as a thick layer binding the bricks together in rows.

• Reading and working from specifications as well as plans.

• Working with brick-cutting machines.

• Taking charge and caring for cement blocks or bricks, clay bricks and the likes.

• Construction of scaffolding - subject to possession of some licenses in some states.

A bricklayer mostly works outdoors, in the field and may also work at heights. Depending on the job, a bricklayer can work as part of a team or be in contact with the public. They are mostly recruited by building and construction companies and bricklaying sub contractors. However, they can also set up their own private construction firm or become a self employed tradesperson.

A bricklaying qualification is one of just two construction trades which can continue to become a registered builder. And regardless of the form a bricklaying employment takes, there are certain qualities that makes a really good bricklayer. These includes:

• Ability to work at heights and outdoors

• Enjoy practical work

• Technical aptitude

• Good hand-eye coordination

• Independent and yet a team player too

• Top physical fitness

• Attitude and attendance.

Why has my driveway sunk?

Driveways usually sink because they haven’t been laid properly. They may not have been dug deep enough, or the installer might not have used the right materials. This will need to be corrected at the earliest opportunity, although in extreme cases, the driveway may need to be completly be relaid.

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 many bricks can a bricklayer lay in a day?

Well, just like many other team work, a bricklayer is only as good as his supporting cast. And a hard-working labourer should be able to keep three bricklayer gangs happy. But even when he gets to serve just one bricklayer, the site conditions and nature of the wall can also play a huge role in determining the number of bricks that can be laid within 24 hours.

With the best possible site condition, hard-working labourer and best scenario with no pillars, no face brick, long straight wall and no wall ties, a well trained bricklayer should be able to lay within a range of 800 to 1100 bricks all day long. However, you rarely get walls like this as there is always going to be some corner or curve somewhere which usually takes some time to get right. Furthermore, once the bricklayer has laid up to 5 feet, there’ll be a need to get some lift. From that point onwards, the job understandably gets slower and tougher - meaning there’ll most definitely be a face brick.

In addition, there are multiple other factors that can affect the number of bricks that can be laid in a day. Sometimes its the complex designs or weather that’ll determine the daily rate.

With the aforementioned factors and more realistically, on a good day and great site, an expert bricklayer should be able to lay about 500 to 800 bricks in a day. This is generally a very good target, but of course you never can tell with the reasons above and other factors that are simply beyond the control of the bricklayer. If you have a project and want it completed as soon as possible, you can pay the bricklayers based on the number of bricks laid to increase their efficiency.

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.

Can a mortgage include renovation costs?

In a nutshell, a mortgage loan is for the acquisition of an asset, so lenders won’t tend to give you anything else in a mortgage that is going to cover your home renovation costs. When you are applying for your mortgage, your provider will examine the price of your new household. For example, if you’re planning to buy a property for £200,000, but you need another £50,000 to help improve it, you’ll find that your lender might turn you down.

Essentially, with any mortgage loans that you take out on your possessions, the bank or creditor theoretically owns your home till you’ve entirely paid off your loan, which is why it is very unlikely that you will get extra funds from them. There are some mortgage providers who will be willing to add on some building costs, but it is entirely up to you whether to choose it or not.

With most mortgages, banks and other lenders will usually give you a maximum of 95% of what you purchased your property for. That means, that even if you contemplate the household has the probability to be valued at so much more, you’ll have to find an alternative way of paying for the developments you have in attention. So, if the accumulation of extra funds on to your mortgage loan is out of the question, you’ll need to find additional ways of paying for the home developments.

It is well and good if you have the cash saved up, or else, you can explore other payment options which your bank or lender may be able to help you with. There are several methods by which you can collect the cost to pay for the improvements, from personal loans to credit cards or even overdrafts, there are tons of ways to lending money. Keep in mind these are all forms of debt so keep an eye out for the interest rates when you are repaying.

How long does it take to install insulation?

How long it takes to install insulation will depend on the size of your property. In general, loft and cavity wall insulation can be installed in a day or two. External wall insulation will usually take longer to install. The rep or installer will be able to advise you when quoting for the job how long this will be.

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