Local AL5 extension builders
Ashtons
£38/hour
£247/day
Experienced extension builder ready to quote for your work. Ashtons is the best extension builder in AL5. No obligation free quotes and many happy ...
"Extend my behinddddddddddddddddddddddd" - AL4
Home By Simon Belcher
£38/hour
£247/day
Trusted and professional extension builder in AL5. Experienced in all work and keeping within budget and on quote. Home By Simon Belcher have many...
"Kitchen extension" - HARPENDEN
Peter's Gutters
£36/hour
£236/day
Trusted and professional extension builder in AL5. Experienced in all work and keeping within budget and on quote. Peter's Gutters have many happ...
"Loft conversion" - ST ALBANS
Priolotiling
£30/hour
£220/day
Experienced extension builder ready to quote for your work. Priolotiling is the best extension builder in AL5. No obligation free quotes and many h...
"Hi I was hoping to get a quote for the renovation of an entire house. It’s about 60 years old. I would need: 1. potential plastering of walls, r 2. removal of an existing kitchen & fitting of new 3. Removal of 1 bathroom & fitting of 2 4. garage conversion 5. flooring & carpet, ..." - RODRIGUEZ, AL5
4siblings
£35/hour
£228/day
4siblings are here to help customers who need an Extension Builder in AL5. We offer a competitive rate to complete all your jobs to professional s...
"Single storey extension" - ST ALBANS
Urzica Builders ltd
£30/hour
£200/day
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of work in AL5 and...
"Side return extension" - ST ALBANS
JBP Developments Ltd
£38/hour
£246/day
We pride ourselves in offering transparent, collaborative construction services, defining your project, through planning and taking your project t...
Bob's Home Maintenance
£50/hour
£250/day
Bob's Home Maintenance are here to help customers who need an Extension Builder in AL5. We offer a competitive rate to complete all your jobs to p...
Mayfield Building Contractor
£39/hour
£246/day
In an unstable market house extensions are often the most viable option, helping you to get the most out of the space you have without the addition...
Mayfield Building Contractor
£39/hour
£260/day
Need the job done quickly without breaking the bank? Mayfield Building Contractor offer fast, reliable, and affordable services in AL5, deliverin...
Grain Property
£39/hour
£245/day
Billy Homan set up Grain Property to provide high-quality design, seamless project delivery, and a commitment to excellent communication throughout...
Abalon Construction
£37/hour
£241/day
Abalon is Western Canada’s leading foundation repair and basement waterproofing company, operating in the Edmonton area for over 40 years (50 yea...
R. Newman Construction
£39/hour
£246/day
Are you looking for resin driveways in North London? We are a leading builder of driveways and patios in North London. We have expertise in various...
RenoSpace
£39/hour
£246/day
Building services company Renospace was established in 2000. Since then we have been helping customers in Hertfordshire and the surrounding area by...
JW Building Services
£35/hour
£230/day
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of work in AL5 and...
The most important thing is do avoid handing over cash or paying large sums in advance. Be wary of paying cash for a cheaper job, i.e. to avoid VAT, you may be going down a slippery slope of not doing things properly which may eventually mean your job is also not done properly.
Agree when you intend to pay, ideally after you are satisfied with the completed job. If it is a big job agree a schedule of staged payments which is fair to both parties.
To avoid bad tradespeople and to ensure you can find them should they not answer a mobile;
- Get proper contact details and check them yourself
- Check if the company is verified on the Companies House website
- Get phone details, ideally a land line or 0800 number and check it
- Get a physical office address
Get quotes in writing by email or in person if possible. Getting quotes online or by text is ok (make sure you accept the offer by replying). For large projects make a written agreement, schedule of works and snagging plans as part of a working document. Also;
- Agree expected quality of workmanship and materials in advance
- When will work start and when will project be finished, what happens if project over runs ?
- How long is the guarantee on work and materials eg 12 months
- Discuss onsite behaviour in advance (no smoking, swearing or using mobile phones for non-work purposes)
- Agree that your Extension Builder will remove all debris and rubbish and what level of tidying up you want after job
Compare AL5 extension builders rates
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Extension Builders near Harpenden | £70 | £264 |
| Extension Builders near St Albans | £52 | £246 |
| Extension Builders near Luton | £37 | £240 |
| Extension Builders near Hatfield | £53 | £244 |
| Extension Builders near Hemel Hempstead | £36 | £232 |
| Extension Builders near Welwyn Garden City | £36 | £229 |
| Extension Builders near Dacorum | £36 | £232 |
| Extension Builders near Hitchin | £37 | £238 |
| Extension Builders near Dunstable | £36 | £235 |
| Extension Builders near Stevenage | £37 | £239 |
Job estimates from extension builders near you
Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.

Build a timber frame extension - £25,912

Garden office - £9,912

Granny annexe - £86,912

Build a flat roof extension - £21,912

Convert a Garage - £15,912

Hip to gable loft conversion - £41,912

Convert a bungalow loft - £28,912

Build a dormer loft conversion - £41,912

Build a swimming pool - £80,912

Build a Mansard loft conversion - £51,912

Concrete foundations - £6,162

Underpin a building - £17,412

Two storey extension - £87,868

Convert a basement - £36,510

Side return extension - £40,510

Loft conversion - £32,925

Garage - £18,412

Single storey extension - £53,240

Outbuilding - £9,912

Install an RSJ - £2,112

Build a kitchen extension - £41,912
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