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4&J Construction Ltd

9.43/10

BARNET, Hertfordshire

Checkatrade member since May 2025

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Services

Agricultural Building
Basement / Cellar Conversions
Brick / Concrete Structural Repairs
Car Ports
Cladding
Concrete Garages
Concreting
Core Drilling
Demolition
Emergency Builder Service
Equestrian Stable
Extensions / Conversions
Fire and Flood Renovation
Foundations
Garage Conversions
Garden Studios
General Building
Loft Conversions
Mastic Sealant
Partition Walls
Refurbishments
Suspended Ceilings
Sustainable Construction
Wall Tie Replacements
Workshop Design / Construction

Customer Reviews

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9.43 /10

Based on 7 reviews over the past 12 months

Quality of work

9.29

Reliability

9.43

Communication

9.57

Reviews (8)

T
Tina P
9
bedroom refurbishment
Posted 16 February
We engaged 4&J construction in renovating one of our bedrooms – removing carpet and a really old fitted wardrobe, then making good the wall behind. Plus we also had them extend the skirting board and coving, and fit a picture rail ready for redecoration. They did this work to an excellent standard, and kept me well informed throughout the whole process. The work uncovered some exposed pipes from an old boiler, so they also put me in touch with a plumber who could remove them so we could fit flooring. They left the room clean, tidy and ready for redecoration as requested. Would recommend.
Verified reviewer
Job location: EN2
M
Maulik P
9
Laminate flooring , Painting Cieling & Walls
Posted 08 February
4&J constructions Ltd ( Sergio & Team ) did a fantastic job in renovating my bedroom space. From demolishing the old storage space, laminating the flooring ( removing old carpet) ,supply and fitting the skirting boards and painting the walls , cieling as preferred by us was all professionally done. The house was kept completely clean before work and post work as well. Would highly recommend them for any building work to be carried out.
Verified reviewer
Job location: HA7
A
Andrew N
10
Repair ceilings and light fittings in 3 rooms following water damage due to leaking pipes.
Posted 13 December 2025
The job was in a tenanted flat and the tenant informed me that the contractor was extremely tidy and considerate throughout. Work was completed ahead of schedule and at price agreed. Excellent communication throughout. Would definitely use their services again.
Verified reviewer
Job location: E9
10
Friendly and very efficient
Posted 10 July 2025
Very helpful supper efficient! Highly recommended thank you!
Verified reviewer
Job location: N18
8.67
Replastering works to a bedroom ceiling/wall
Posted 02 July 2025
Good communication throughout, no hidden surprises on costs, work to a good standard.
Verified reviewer
Job location: IG8
9.33
Garden room and front porch
Posted 14 May 2025
Good work and great finish . Timely work completed. I had it value for money
Job location: RM8