Hammers Construction
Accepts Checkatrade Pay
Skills
- New Builds
- Basement / Cellar Conversions
- Extensions / Conversions
- Loft Conversions
- Project Management
- Refurbishments
- Garage Conversions
- Structural Design
Services
Customer Reviews
Write a review10 /10
Based on 6 reviews over the past 12 months
Quality of work
10
Reliability
10
Communication
10
Reviews (179)
10 Extensions / Conversions
Posted 22 April
Outbuilding/Garden office and Loft conversion final review
Carl and the team at Hammers Construction recently completed two projects for us — a garden outbuilding/home office and a loft conversion with en-suite bedroom. We are absolutely thrilled with the results. They were reliable, professional and a pleasure to deal with. Communication was excellent throughout. The quality of workmanship is outstanding and attention to detail really shows. The site was kept tidy with minimal disruption. We cannot fault them and would highly recommend!Verified reviewerJob location: HA410 Extensions / Conversions
Posted 22 March
Professional and highly competent building company
We are half way through a 4m extension on our semi-detached home and have found Hammers Construction to be extemely professional, fast paced and highly competent. Communicaiton with Carl and the guys on site has been fantastic. So far the quality of the build looks great. We are impressed at how fast and hard all the trades work. Carl consults on all decisions and we have felt well informed along the way. We have a small baby and the whole team have been repectful of working around us and our needs in the house when we have been there. The team are also leave the site neat and tidy.Job location: HA410 Extensions / Conversions
Posted 15 February
Outbuilding/Garden office and Loft conversion 1st review
We’re extremely pleased with the progress Carl, Dave and the team have made on our outbuilding so far. They arrive early each morning and work hard throughout the day, even in the terrible weather we’ve had this January. They’ve been professional, proactive and clearly very experienced. Communication has been excellent, with detailed daily updates that keep us fully informed at every stage. Although the project is still underway, we’re very happy with how everything is progressing and wouldn’t hesitate to recommend Hammers Construction.Verified reviewerJob location: HA410 Extensions / Conversions
Posted 07 October 2025
Ground Floor Extension - 2nd Review
Hammers are doing an amazing job! Carl, Dave and the team have been friendly and accommodating throughout. At the end of the day we get a full update and regular communication of upcoming planned works. They also have a great local network of highly skilled tradesman with good attention to detail.Verified reviewerJob location: HA5RTom F10 Extensions / Conversions
Posted 03 September 2025
Ground Floor Extension - 1st Review
Carl, Dave and the team are doing a great job so far. They have been helpful and proactive throughout showing their experience. Communication has been amazing with thorough daily updates. I would definitely recommend Hammers.Verified reviewerJob location: HA5RTom F10 Loft Conversions
Posted 24 July 2025
The work is professional, friendly and well within timescales.
Carl, David and the team were amazing from start to finish. The work is professional and friendly and well within timescales. This was out first big renovation so we were happy and very comfortable with the team. Good communications through out the job as well. Well done and we will use Hammers again.Verified reviewerJob location: HA4
Photos
Company Info
Owner
Mr Carl Poulton
Sole Trader
8 years on Checkatrade
VAT Registered
No
Hammers Construction are based in Ruislip Greater London
www.hammersconstructionservices.com
Services We Offer:
Loft conversions
Extensions
New builds
Complete refurbishments
All building works
We are LABC-approved contractors
We can also plan, manage, and build multi-phase jobs.
We are experts in the building trade covering London, Greater London, Surrey, Hertfordshire, Bedfordshire and surrounding.
Working Together
We offer an end-to-end client experience that includes seamless communication to ensure you are completely happy with all work carried out by Hammers Construction before, during and even after a project has been completed. We like to work closely with our clients giving you the utmost peace of mind always.
Why Choose Us?
We have worked with homeowners and designers to produce work we think you'll love. With over 30 years of experience, we aim to always deliver complete projects finished to the highest possible standards, the reason behind our secured reputation. Putting your project in the hands of our team will guarantee you peace of mind, where you can trust that the finished project will have been completed to the highest possible standard. All our work is fully insured and undertaken by qualified tradesmen. Call us today and bring our project management skills and extensive construction experience to your next project.
Accreditations and awards

This trade passed up to 12 Checkatrade vetting checks
Member since April 2018
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