Genie Building Ltd
Mitcham, Greater London
Checkatrade member since May 201410
Services
- Basement / Cellar Conversions
- Concrete Garages
- Concreting
- Demolition
- Emergency Builder Service
- Extensions / Conversions
- Fire and Flood Renovation
- Foundations
- Garage Conversions
- Garden Studios
- General Building
- Loft Conversions
- New Builds
- Partition Walls
- Project Management
- Property Maintenance / Repair
- Refurbishments
- Steel Work Design
- Structural Steels
- Suspended Ceilings
Customer Reviews
Write a review10 /10
Based on 5 reviews over the past 12 months
Quality of work
10
Reliability
10
Communication
10
Reviews (196)
10 Great attention to detail and very reliable
Posted 5 days ago
Have used Kris on various building projects over the years. Great attention to detail. Very reliable and trustworthy.Verified reviewerJob location: SW1910 Excellent Work at a Great Price
Posted 1 week ago
I recently had Genie Building Ltd carry out plumbing work and couldn't be happier with the service. From start to finish they were professional, punctual, and got the job done quickly and effectively. They supplied all the necessary parts at cost price with no markup, which I really appreciated. The overall cost was very competitive compared to other quotes I'd received. They were also extremely clean and considerate while working in my home, leaving no mess behind. I'd happily recommend Genie Building Ltd to anyone looking for a for a reliable, fairly-priced, and high-quality tradesperson.Verified reviewerJob location: SW1810 Beautiful bespoke bookshelves
Posted 09 June
Chris designed and put up the bookshelves. Fast professional and looks amazing.Verified reviewerJob location: SW1310 Skilled and friendly
Posted 08 June
Kris and his team did a great job when they fortified the foundations, laid down insulation, and tiled our kitchen/dining area. They’re punctual, courteous and competent. I would not hesitate to recommend them or engage them again.Verified reviewerJob location: SW1910 Best builder in the south west
Posted 08 June
I cannot tell you how long I have been looking for a fair, trustworthy and excellent builder! Kris ticks all the boxes and continue to be a repeat customer.Verified reviewerJob location: SW1910 Shower and toilet repairs
Posted 09 June 2025
Krzysztof was very timely and professional. His work was clean and fast, and the repair was successful (changing a shower tap and a toilet flush), works well still months later. Good price, quote was accurate, and he even went the extra length helping me fix my window without charging me. Thank you, glad I can enjoy a hot shower again!Verified reviewerJob location: CR4
Photos
Company Info
Owner
Mr Krzysztof (Kris) Gniewek
Sole Trader
12 years on Checkatrade
VAT Registered
Yes: 256307995
Genie Building LTD specialize in transforming spaces into stunning, bespoke loft conversion, garden extensions and general building projects.
We are passionate about unlocking the hidden potential in your home.
Our specialism is in realizing your vision and creating something that makes you proud.
We transform properties into spectacular talking points.
The work includes structural opening, loft conversion, and garden extension, beams and all type of foundations.
General building project around the house.
services offer:
- General Building
- Renovation and extensions
- Kitchen Installation
- Bathroom Renovation
- Loft Conversions
- Garden Extension
- Bathroom Design
- Bathroom Plumbing
- Kitchen Plumbing
- Under Floor Heating
- Boiler installation
- Emergency Call Out
- end to end project
This trade passed up to 12 Checkatrade vetting checks
Member since May 2014
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