Find a Builder you can trust in Letchworth Garden City.

Choose from 169 Builders, all rated by people like you.

Over 321 reviews & an average rating of 4.4/5 stars, you'll find the right pro

Choose and shortlist

Use the shortlist button to select up to 4 tradespeople, enter your project details and press send

or

Keen to get on with the job?

Get up to 4 quotes from local Builders near you

View Shortlist
Verified Pro

Essex Loft Extensions

0 review(s)
Offers services in LETCHWORTH GARDEN CITY
Essex Loft Extensions was founded by a team of experienced local builders with a shared passion for residential constructi...
Verified Pro

Rankin’s Roofing & Building

3 review(s)
Offers services in LETCHWORTH GARDEN CITY
Rankins Roofing & Building are a family established business with over 30 years in the building/roofing industry. We pride...
Verified Pro

Coastal Prime

0 review(s)
Offers services in LETCHWORTH GARDEN CITY
Coastal Prime Ltd provides expert home insulation services across the UK, helping homeowners enhance energy efficiency and...
Verified Pro

Loft & Build

0 review(s)
Offers services in LETCHWORTH GARDEN CITY
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

14 Dec

Driveway Repair

Letchworth Garden City - SG6

Enquiry from: Harry N

Start Date: 1 to 3 months

removal of paving borders on drive way to maximise space and install wooden posts on the boundary (if possible). thanks are you the property owner: owner of the property property type: semi detached w...

Post a similar request >

31 Aug

Building work | Bricklaying

Letchworth Garden City - SG6

Enquiry from: Simon M

Start Date: Immediate

good morning i have a problem with a small section of wall that is in letchworth it's approx. 2.25m high and 700 mm wide and is a brick wall between 2 entrance doors of some flats in letchworth ( 13...

Post a similar request >

10 Nov

Interior work | Stud Walls

Letchworth Garden City - SG6

Enquiry from: Megan B

Start Date: Immediate

stud wall installed with room for door

Post a similar request >

11 Mar

Building work | Bricklaying

Letchworth Garden City - SG6

Enquiry from: Jo G

Start Date: Immediate

front steps to house knocked down and replaced. too step at the moment. are you the property owner: owner of the property property type: terrace how much work would you say needs to be done: small job...

Post a similar request >

07 Nov

Insulation | HHCRO Free

Letchworth Garden City - SG6

Enquiry from: Patricia B

Start Date: Immediate

need advice on insulation for the top of my home please time scale: immediate please call to appoint

Post a similar request >

15 Oct

Insulation | External Wall

Letchworth Garden City - SG6

Enquiry from: Gary B

Start Date: Immediate

i am making this enquiry on behalf of my daughter who lives in norfolk and has a flat roof conservatory approx 3.6m x 2.8m. i am looking for an idea of the potential cost of suitable insulation. pleas...

Post a similar request >

13 Aug

House Extensions

Letchworth Garden City - SG6

Enquiry from: Sangita G

Start Date: Immediate

are you the property owner: owner have you considered getting your windows replaced to match your conservatory: no other forms: house extension agreed to receive quotes for selected products: yes ple...

Post a similar request >

02 Aug

House Extensions

Letchworth Garden City - SG6

Enquiry from: Elie A

Start Date: Immediate

interested in a quote for a rear extension: bifold doors skylights spot lights width - 7000mm depth - 3000mm lean to or gable end best regards, elie allouis are you the property owner: owner of the p...

Post a similar request >

22 Jul

House Extensions | Single Storey

Letchworth Garden City - SG6

Enquiry from: Elie A

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...

Post a similar request >

22 Jul

House Extensions

Letchworth Garden City - SG6

Enquiry from: Elie A

Start Date: Immediate

interested in a quote for a rear extension: bifold doors skylights spot lights width - 7000mm depth - 3000mm lean to or gable end best regards, elie allouis are you the property owner: owner of the p...

Post a similar request >

07 Feb

Insulation | HHCRO Free

Letchworth Garden City - SG6

Enquiry from: Martin R

Start Date: Immediate

We moved in end of November and we noticed that loft have no insulation at all. Time scale: Immediate Please call to appoint

Post a similar request >

21 Oct

Insulation | External Wall

Letchworth Garden City - SG6

Enquiry from: Tom H

Start Date: Immediate

want a quote for insulating the roof in conservatory

Post a similar request >

13 May

Conversion | Garage

Letchworth Garden City - SG6

Enquiry from: Ravinder S

Start Date: Immediate

I would like a quote to convert my garage into a room Are you the property owner: Relative of Owner Do you have a: Single Garage What will the space be used for: Living Space Do you require Plumbing W...

Post a similar request >

07 Feb

Insulation | HHCRO Free

Letchworth Garden City - SG6

Enquiry from: Ken G

Start Date: Less than one month

We wish to increase the loft insulation in the halls and rooms of our church. 6 lofts in all ( 3 6x6m, 2 6x9m, 1 10x20m). Just looking for budgetary costs to decide which to enquire about. Time scale...

Post a similar request >

03 Jun

House Extensions

Letchworth Garden City - SG6

Enquiry from: Leanna H

Start Date: Immediate

Are you the property owner: Tenant (with permission) Property Type: Semi detached Do you have planning permission: Yes Looking For: Single storey extension Do you have plans drawn up: No Do you requir...

Post a similar request >

03 Jun

House Extensions | Single Storey

Letchworth Garden City - SG6

Enquiry from: Leanna 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: Tenant (with permission) Property Type: Semi detached Looking...

Post a similar request >

28 Feb

Building work | Sound Proofing

Letchworth Garden City - SG6

Enquiry from: Emma H

Start Date: Less than one month

The interjoining wall in bedroom. Can hear tv talking from next door. Only muffled but as we work shifts need to sleep at different times. Time scale: Less than one month Please call to appoint

Post a similar request >

22 Dec

Insulation | HHCRO Free

Letchworth Garden City - SG6

Enquiry from: David T

Start Date: 1 to 3 months

loft insulation 50 square metres access through ceiling hatch, no boarded areas except 1 square metre under water tank, low pitch roof

Post a similar request >

23 Nov

Insulation | Cavity Wall

Letchworth Garden City - SG6

Enquiry from: Neil D

Start Date: 1 to 3 months

We have a semi which has tiles on all outside walls. Is it possible to cavity insulate? N Duncan

Post a similar request >

05 Nov

Insulation | Loft / Roof

Letchworth Garden City - SG6

Enquiry from: Joy A

Start Date: Less than one month

Are you the property owner: Relative of Owner Property Type: Semi detached How many bedrooms do you have: 1-2 Bedrooms Property Age: 1930-70 Interested in quote for cavity wall and loft insulation: L...

Post a similar request >

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 Letchworth Garden City is:

£25,173

Builder job Builder cost in 2026
Garage conversion in Letchworth Garden City £9,834-£19,634
Loft conversion in Letchworth Garden City £21,875-£41,875
House extensions in Letchworth Garden City £29,250-£62,000
Loft insulation in Letchworth Garden City £450-£690
Upvc or wood porch in Letchworth Garden City £2,625-£4,025
Barn conversions in Letchworth Garden City £112,500-£172,500
Basement renovation in Letchworth Garden City £30,000-£46,000
Bedroom fitting in Letchworth Garden City £1,500-£2,300
Bricklayers in Letchworth Garden City £300-£460
Cavity wall insulation in Letchworth Garden City £400-£820
Commercial new builds in Letchworth Garden City £105,000-£161,000
Conservatory base in Letchworth Garden City £675-£1,035
Building maintenance in Letchworth Garden City £1,400-£4,225
Building insurance works in Letchworth Garden City £1,400-£4,225
Pebble dashed walls in Letchworth Garden City £1,275-£7,100
Plasterboard dry lining in Letchworth Garden City £638-£978
Residential new builds in Letchworth Garden City £105,000-£161,000
Restoration and refurbishment in Letchworth Garden City £37,500-£57,500
Roof insulation in Letchworth Garden City £7,500-£11,500
Underpinning in Letchworth Garden City £1,400-£4,225
Wall cladding in Letchworth Garden City £1,125-£1,725
Wall rendering in Letchworth Garden City £3,750-£5,750
Demolition in Letchworth Garden City £2,440-£3,660
Roof room in Letchworth Garden City £15,000-£23,000
Shop refurbishment in Letchworth Garden City £3,750-£5,750
Single storey house extension in Letchworth Garden City £24,400-£44,934
Soundproofing in Letchworth Garden City £900-£1,380
Driveway repair in Letchworth Garden City £607-£51,140
Garden room in Letchworth Garden City £6,400-£9,600
External wall insulation in Letchworth Garden City £6,000-£15,000

Related Builder searches in Letchworth Garden City

Builder FAQs

How do I know if I have cavity wall insulation?

With cavity walls being very similar to other type of brick works, it can be quite confusing to figure out the type of wall your property possesses. If your house was constructed after the 1920s, then its highly likely the you have cavity walls, while older houses (houses before the 1920s) are likely to have solid walls. What’s more? If you happen to own a home that was built in the last decade, then it’s very possible that it was built with insulation installed during construction.

An effective way to determine whether or not your property is built with cavity wall is to examine the brickwork on your home’s exterior. The bricks will typically possess a regular pattern if it features cavity walls. In the event whereby the brick work is covered by render, you can also figure it out by taking a measurement of the wall’s width. If the brick wall is beyond 3000mm in thickness ( from the exterior wall to the interior wall), then it probably features a cavity. Meanwhile, a wall that’s narrower is very likely to be solid. Stone walls, on the other hand, may actually be thicker but are most times solid.

In a situation whereby your house is built using steel frame or timber frame, or made using pre-fabricated concrete, there are varying rules that applies when it comes to insulation and should be examined by an expert before any insulation is installed. More often than not, most contractors will have installed special air vents, which can also be a good indicator that a cavity wall insulation has been done.

Is a basement conversion worth it?

Whether a basement is worth converting depends on your location and how much work it requires.

A basement conversion can be a great way to add space to your home, and can raise your property value. However, it can also be one of the most expensive ways to do this, so if there’s a possibility to extend your property, or convert a loft or garage, it’s worth considering this first.

You should also compare how much your basement conversion will cost with the amount it could raise your property value by. In some areas, a quality basement conversion could earn you money in the long run, but in others it’ll only cost you. If you’re planning on staying in your property for a long time this might not matter to you, but if it’s not your forever home then it’s an important thing to think about.

What time can builders start work?

The periods at which noisy work is permitted do vary across the nation because the Control of Pollution Act 1974 provided Local Authorities with the authority to regulate noise from construction sites and similar areas. At the same time as these do differ across unalike councils, the average hours throughout which noisy work is tolerable is usually between 8 am and 6 pm from Monday to Friday. This is usually based on the impression of ‘noisy work’ being carried out, so labours could start earlier to prepare things for the day but then not start carrying out their work until 8 am.

On Saturday’s builders are usually allowed to work between 8 am and 1 pm, but this can differ to some extent with different councils. It does mean that workers can start at the identical time as the rest of the week, but they are generally required to finish a lot prior. On Sundays and Bank Holidays there is not as much of detailed direction on hours, but most councils say that there should be no noisy work taking place. Although these are decent strategies, it is worth examining your Local Authority website as they can change slightly. Noisy work is commonly described as ‘noise audible at the site boundary’ and it may be the case that workers are there outside these hours but are setting up before carrying out noisy work.

Local Authorities also recognise that now and then it is unescapable to work separately to these hours, such as work on railway tracks that must be done when trains are not running. Though, local councils do have the authority to serve an announcement on individuals carrying out building or demolition works and tell them how the work should be carried out to evade a possible lawful noise irritation.

Do I need planning permission for external wall insulation?

If you want to install an external wall, it is only wise to consider whether or not a planning permission is required in order to avoid a hefty fine. In a great kudos to the government and a welcome relief to home and property owners, the installation of external wall insulation is seen as an “improvement to the house and not an “extension or an “enlargement. Ultimately, this implies that external wall insulation fitting is to be done under permitted development and a planning application may not be required. However, like many other regulations, there are also exceptions to this rule and the main one is if the activity changes the appearance of your property. Properties such as a listed building having tighter regulations may pose some issues. As a result, we’d advise you to consult your local authority to ensure that there’s no fast rule to this topic before commencement of the external wall insulation project.

At the moment, according to the Government Building Regulations, the surface of the entire wall is to be improved to existing standards if the area to be insulated exceeds 25 percent of the wall. In normal situations this is usually the typical case, however to prevent avoidable fines and other possible punishments, it is always best to reach to your local authority and check out the rules guiding external wall insulation in your constituency. Furthermore, since external wall insulation is not a task that’s recommended to be done by yourself, you can also ask the professional external wall insulation fitting company for the applying rules before proceeding. As a good professional, the company should have a better knowledge of the rules and regulation guiding its activities.

how much is a dormer loft conversion?

Are you considering a dormer loft conversion for your home? If yes, then you’d probably want to know how much it costs. Unfortunately, due to the several variables and influencing factors, a precise answer can not be provided for all dormer loft conversions. In this article we’ll give you a vague idea of the general cost so you can set a more realistic budget and start planning.

There are three main types of loft conversion which includes the Velux, Dormer, and Mansard. Out of the three types, the dormer happens to be the most common type and possesses a small flat roofed extension with a window. The dormer loft conversion will usually cost within the range of £25,000 to £30,000.

The price for a smaller dormer loft conversion, mid range dormer loft conversion and large scale dormer loft conversion will be at £2,000 to £7,000, £10,000 to £30,000 and £40,000 to £60,000 respectively. However, you should take note that the prices given are all based on varying influencing factors such as the type of installation that is selected, the type of the rood, en suite conversion as well as other customization. Changes in price can be as a result of the materials required and the extra time per labour that’s needed to complete this home improvement project by the tradesmen employed.

Furthermore, a dormer loft conversion average cost will also depend on the type of dormer you opt for. Here is a list of the most common applications:

✓ Blind dormer loft conversion - £3,200 to £4,400

✓ Recessed dormer - £1,300 to £1,850

✓ Barrel roof dormer - £3,000 to £4,600

✓ Gable dormer - £5,500 to £7,500

✓ Hipped roof dormer - £5,600 to £6,660

✓ Pedimented dormer - £12,700 to £23,100

✓ Flat roof dormer loft conversion - £13,800 to £21,600

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 to cut plasterboard?

Cutting a plasterboard is a relatively simple process requiring only some basic tools. Unfortunately, the lack of knowledge serves as big deterrent for many people who wishes to put it to good use. Plasterboard can actually be sawn using an ordinary timber saw that’s fine-toothed to get a cleaner edge. However, the basic tools you may also need includes a sharp knife (Stanley Knife), pencil, a fine sandpaper, a straight edge and measurement tape as well as a wall board saw. Let’s have a look at the cutting process!

• Firstly, you need to put the plasterboard sheet flat on a firm surface.

• Use the tape measurement to measure the cut you wish to make.

• With the help of a pencil, simply mark out the part you wish to cut on the plasterboard’s front side.

• Once marked, place a spirited level over the marked spot on the plasterboard sheet you want to cut.

• Cut a shallow mark into the plasterboard sheet using the Stanley Knife to cut along the edge.

• The cut should be slow and gradual to ensure you do not wander off the edge of the marked area.

• Once the shallow cut has been made, turn the plasterboard sheet on its edge and deliver a quick and sharp push towards the plasterboard’s back and on one side of the cut.

• Place the plasterboard sheet backing against a flat surface ensuring the line of the cut is over an edge. Once done, give a quick and sharp push towards the back of the plasterboard sheet and on the part of the board is reaches beyond the edge.

• Using a fine sandpaper, remove all forms of paper burrs.

The process of cutting plasterboard requires a lot of practice. If you lack the training and experience, the cutting process is best left to a proficient professional who can guarantee the best results the first time and save you some additional costs due to potential damages.

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.

Builder help and advice

How it works

Tell us about your Builder project

Answer a few quick questions to help us match you with the right Builder

Get up to 4 free quotes

Receive no-obligation quotes from 4 Builders working in Letchworth Garden City.

Pick the right pro for you

Compare prices, customer reviews and services, and hire the right Builder.

Are you a Builder in Letchworth Garden City?

View our open Builder jobs near you

Join today
View Shortlist