See local Extension & conversion Builders rates and get quotes

Local builder who can quickly and easily add a guest toilet to your downstairs living space and build a sunny conservatory extending the lounge.

No job too small, underpinning the foundation to strengthen it for an extension or fix a crack in the foundation or refurbish a dark lounge by replacing small windows with French doors leading to the outside and allowing a lot of light through the home. Or too big, a house extension to double the size of your property or convert the basement into a new floor of living space.

Domestic builder services include;


  • kitchen, increasing the size or changing the layout
  • bedroom, building extra bedrooms or making an existing room larger
  • bathroom, en-suite or toilet, adding on to a home or refurbishing an existing bathroom to a better suited design
  • utility room, creating an extension on from a kitchen or converting a basement into a handy space
  • conservatory, porch, sunroom that can be extended from a lounge to create an extra living room or dining room
  • double storey, doubling the size and value of your current property


  • loft, turning empty unused space into an extra bedroom with an en-suite or living room
  • basement, can be converted into a lounge, bedroom, bathroom, utility room, whatever you wish
  • garage, providing a safe space to park cars and handy storage space

So, if you need a builder to build an extension or conversion in your home HaMuch has thousands of friendly, Chartered Association of Building Engineers (CABE) registered professionals ready to help with your new en-suite bathroom, build a garage to park that dream Mustang, extend your kitchen to keep up with a growing family.

Why choose a local specialist to build your loft conversion or kitchen extension?

When you’re planning a significant renovation or improvement to your home, it’s important to find a local extension builder that you can rely on.

Selecting the wrong tradesman to complete your home extension could result in botched plans, delayed building work or even a loss of value to your family home. Luckily, HaMuch provides a quick and easy way to find the right person for any type of specialist extension or conversion job.

Looking for a local building contractor or refurbishment expert? You can find the right tradesman at HaMuch.

While opting for the cheapest possible contractor may seem tempting when contemplating the necessary spend for a significant home renovation like a barn conversion or conservatory fitting, consider the following things before selecting your tradesman:

  • Are they well-respected in the local area: have any local companies or tradesmen had positive or negative dealings with them?
  • Were customers happy with the quality of work completed by the tradesman? Did they complete the job on time and finish it to a high level of quality?
  • Are they well-established? Choosing a specialist who has many years’ experience will ensure that your loft conversion, conservatory build or kitchen side return is constructed on time, to budget and to an exemplary standard.

What does an extension or conversion builder do?

An extension or conversion builder oversees the entire project from start to finish. Sometimes, they partake in the construction work themselves. Builders usually have a solid understanding of other trades and this helps in their supervision of the tradesmen working with them. Some may also be experts in specific areas, such as barn conversion specialists or loft conversion builders.

Here are a few things your extension or conversion builder can do for you:

  • Planning your extension: A builder can help you plan your extension if you aren’t sure where to start. Some builders are good with blueprints, and they’ll almost certainly know one or two brilliant architects.
  • Handling legalities: Building something like an extension, loft conversion or basement conversion often requires some legal work with local authorities. Extension builders will be familiar with this process and will help you secure every necessary permit.
  • Handling administrative work: Your builder also handles administrative tasks, including paying other craftsmen for their work.

How to find a extension & conversion builder near you?

To find a extension & conversion builder service near you, follow our simple three-step process:

  1. Post your job: Enter the trade and postcode suitable for your project then describe your job.
  2. Get quotes: We’ll send your job details to extension & conversion builder specialists in your area and match you with the professional tradesmen qualified and skilled to complete your work. We’ll notify you via text or email when tradesmen express interest in your job.
  3. Select your tradesman: Compare rates, proximity, review profiles and experience of the tradesmen interested in working with you. You can use HaMuch to safely message, ask questions or just phone them — you’re in complete control!

Our search tools are designed to help you find a tradesman that best suits your needs, budget and location.

Are you looking for a extension & conversion builder? Find the perfect tradesmen for you on HaMuch. Our directory lists vetted, trusted builders near you.

London and the M25.
Specialising in the design and installation of custom and high-quality loft conversions and house extensions in London, and with a strong focus on customer service, we are committed to building long-term relationships based on reliability, value, and client satisfaction. After many years working in the construction industry, we have accumulated a wealth of knowledge and expertise that allows us to add value and maximise the living space of any property according to ...

35 years in the trade and there is not much we havent come across or done from pools to extensions and we specialise in loft conversions

Loft Conversions and extensions only

From a missing tile to a two storey extension.We can quote for every part of your project.Garage conversions, loft conversions, extensions. Roofing.
Cover all of Newcastle up to Hexham, the coast, Gateshead, Morpeth.
Reliable polite work force.

Loft conversions Please call to discuss your requirement

The Home Extension Company has earned its reputation as being one of the leading Home Development Companies in and around South Wales. We pride ourselves on developing both smart, high-tech buildings, and traditionally constructed buildings to a very high standard. Working with a strong team of industry professionals, we have a proven track record in unlocking value in sites and translating client and investor visions into reality. To learn more about our company profile, get in touch today.

Omurca Ltd is a main building contractor specialising in residential construction based in Edenbridge, Kent.Our services include new build construction, extensions, basements, renovations and residential developments. We undertake projects ranging from 100k to 1M contract value and will quote on most projects in Kent, Surrey and South West London.As well as offering residential construction services, Omurca Construction also work in Retail, Commercial, local Authority and Manufacturing sectors...

Being a general builder its a great satisfaction to see costumers happy with nice job and on the time booked. Either way you are just painting or having a bigger job as renovating, building a new home, extension, fencing and many more you will find on us a good adviser.  Covering all areas of Norwich and surroundings. We are also on Mybuilder where I received a great reviews from costumers. Always trying to offer more to clients, being on the job from start to end with the best services we...

Local builder services CENTER "I, YOU, WE" CIC.Exterior building workbuild or repair a path or drivewayconstruct or restore an outside retaining wall or garden boundary wallrepoint the brickworkmaintain the chimneybuild foundations for extensions and conservatoriescomplete a house extensionInterior building workrefurbish a bathroom or room of choicecomplete a kitchen or living room extensiondamp proof inside wallstimber treatment on wooden joists and structuresbuild a loft conversioncarry out st...

NISUP BUILDING SERVICES  Company specializes in the domestic and commercial building industry : 1. Refurbishment  2. Extensions 3. Loft conversions 4. Basement and cellar conversions 5. New builds  Working in the building industry for over 10 years, we are based in London.   Experienced tradesmen carry out all our work: electrical, plumbing, tiling, plastering, carpentry, painting...  We will advise you for planning and replanning your home, office or gard...

General builder / multi tradesman with over 30 years experience. Extensions, loft Conversions, Garage Conversions, Basement Redevelopment. Roof Renewals and Repairs. All Woodwork / Carpentry. Internal / external flooring. Plumbing, Kitchen / Bathroom renovations, Complete House Remodelling. From small repairs to major refurbishments. Extensive Portfolio Available. FB Page with dozens of images of works completed and in progress. References available upon request.

Simply London Builders offer a vast range of building services, specializing in all sorts of house extensions, loft conversions, garage conversions, kitchen extensions, refurbishments and many more. Having been in business for more than a decade, we’ve picked up many skills along the way, as well as abundance of experience.

Building extensions and conversions - commercial and domesticstructural repairsgroundworksdrainage workspaving, patios and concretingRenovation and refurbishmentfitting kitchens and bathroomshouse and office refurbishmenthome improvementsplanned and reactive maintenancesuspended ceilingspartitioningfire and flood renovationinsurance worksflat conversionsWe provide professional, friendly and reliable carpentry services and take great pride in our craftsmanship and clean and tidy work ethos.Our re...

Jobs for Extension & conversion

Single storey rear kitchen extension. Combining two current rooms and extending out the back. Will require steelwork, moving boiler, and levelling an existing floor among other things. Plans already drawn up.

Need to convert Attic into open living space. Also check if roof insulation is fine for energy efficiency. need to see the top external roof condition too.

Extension and refurbishing

Insulate a loft in a end of terrace house

Side return..plans in place. floor and foundation block work and brick demolition of walls erect steel works roofing skylights roofing

Single bedroom loft converison

Hi, I am still awaiting a completion certificate for 65 Balgreen Road. Could you please confirm submission and, in particular, the fire certificate as this seems to be the last piece required to obtain this? Thanks.

Extension to the side of the house suitable for a bathroom

House to hmo conversion - 3 ensuite bathrooms, partition walls, kitchen,flooring, install fire doors and smoke alarm. No knocking down of any walls, no rsj. I have plan for construction i can send to you.

Porch extension with toilet

Loft conversion- Turning a roof loft space used for storage to an extra bedroom or study room.A Velux roof window already installed as no need to alter roof. A central heating radiator installed

Hi! Looking for a quote for either a loft conversion or a building extension please. Thank you

I would like my loft converted to a bedroom with a ladder access. I will likely break down the project into parts. How much would the floor reinforcement be?

Extension work to the side single storey

Velux loft conversion

House restoration inside and out

Extension building, new bathroom and Kitchen

Turn Garage onto laundry room approx 3x 2.5

Looking for loft conversion

Hi, I am looking to buy a property in Horsham - a two bedroom bungalow ( . I would like to convert the loft area ( approximately 2.5m x 3 m) - there is already a small dormer fitted and floor boarding with electricity. I would like to find the estimated cost of extending to the back - where currently a conservatory is fitted? Could you provide some estimated figures? Many thanks Paulina

Render repair required on sections of two rear walls plus painting repair-work to front (Mock Tudor facia) of the house including painting of timber.

A 3x3 meters squared storm porch with pitched roof to match the house. 3 walls with one door and a one slim window at the front.

Need to create loft space and would like a survey/quote for packages of a loft storage room for a 2 bedroom terraced house to include: - relocation of hatch -install ladder - floor boarding - loft roof beam reinfocement/roof wall stud & insulation -fit x1 roof window

Need a loft conversion

Needed loft room storage terraced 2 bedroom house; relocation of loft hatch with fixed easy access ladder and converting unused space to storage room with standard loft boarding and light to start with (discuss side roof wall insulation/stud and roof window possible )

Knock through lounge dining room and also fit patio doors

Removal of loft chimney and in 4 rooms

Renovation of downstairs

Fire damaged garage/store needs demolishing and rebuilding. adjoining brick wall one side, rest is timber construction with up and over door and small pitched tiled roof to front and flat roof over remainder.

Rear single storey extension, side double storey extension, loft conversion

Builder: Average Hourly and Daily Rates around

Builder: Average Hourly and Daily Rates around (excluding VAT or callout charges)
Location in UKHourly RateDaily Rate
Builder near Charnwood£24£181
Builder near Caerphilly£28£186
Builder near Vale of Glamorgan£31£193
Builder near Guildford£40£246
Builder near Bury£28£198
Builder near York£25£186
Builder near Sunderland£30£213
Builder near Stroud£26£205
Builder near Bradford£27£199
Builder near South Oxfordshire£33£230

Find hourly & daily prices for Builders in the UK