Plan.
Build.
Achieve.
Trusted by homeowners and developers across London for 40+ years.
No stress, no hidden fees, just expert care from a family-run team.
Your home is more than just a building,
It's a safe place for you and your family to grow, milestones to be made,
and special moments to be shared.
Our Process
New Builds &
Apartments
Built with precision, care, and quality that lasts.
Design and Build
Start-to-finish project
management from your idea to the final nail.
Extensions
Premium materials. Expert craftsmanship. Decades of protection.
Out Building
Clean, weatherproof, and cost-effective for modern builds.
Loft Conversions
Need more room?
We’ll turn your attic into a beautiful, functional space.
Listed Buildings
And Restorations
Preserving historic charm, keeping every original detail intact.
Tired of Contractors That Cut Corners?
Surprise fees after the job starts? No updates on what’s happening? Cheap materials that don’t hold up?
You Deserve Better.
What Makes Us Different:
- Transparent Pricing – No hidden costs. No guesswork.
- Certified Professionals – NFRC & Checkatrade approved.
- Family-Owned for 40+ Years – Built on word-of-mouth and real results.
- Dedicated Project Manager – You’ll always know what’s going on.
Our Mission
At the heart of our work is a commitment to collaboration.
We partner closely with our clients to bring their vision to life—delivering quality finishes that meet the highest standards, stay within budget, and are completed on time.
Every project we take on is not just a job, but an opportunity to create something we’re proud to add to our portfolio.
See Why Homeowners Trust JJ Construction Group
"Very professional job."
"They gave me a breakdown of the job and costs in detail and kept me in the loop the whole time!
Work was completed to a really high standard! I’m very happy with the end product and would definitely use them again!"
"Excellent project management."
"Excellent expertise and direction of workforce, smart professional outfit, will recommend to anyone looking for a headache-free experience."
"100% recommend!"
"They knocked off a wall and left the space ready for the wardrobe fitters to install my fitted wardrobe.
Very professional and nice team, left my bedroom clean and ready for the next work!"