SJ Construction Logo

SJ Construction

  • Builder


Call07488 849523

Services and skills

  • Builder

    40 skills

    Agricultural Building

    Basement / Cellar Conversions

    Brick / Concrete Structural Repairs

    Building Merchants

    Car Ports


    Concrete Garages


    Core Drilling


    Diamond Drilling

    Emergency Builder Service

    Equestrian Stable

    Extensions / Conversions

    Fire and Flood Renovation


    Garage Conversions

    Garden Studios

    General Building

    Green Oak Framing

    Heritage Property Specialist

    Insurance Claim Specialist

    Loft Conversions

    Mastic Sealant

    New Builds

    Partition Walls

    Period Property Restoration

    Project Management


    Repair and Listed Building Specialist

    Steel Fabrication

    Steel Work Design

    Stretched Ceilings

    Structural Design

    Structural Steels

    Suspended Ceilings

    Sustainable Construction

    Tree Houses

    Wall Tie Replacements

    Warehouse Racking


Customer reviews

Overall ratingin last 12 months

9.15Write a review
  • Workmanship9.67 out of 10
  • Tidiness10 out of 10
  • Reliability9.33 out of 10
  • Courtesy10 out of 10
  • Quote Accuracy100 out of 100
Write a review

11 Total Reviews

The reviews below represent customers' views and not the views of Checkatrade

  • Never turned up.

    2Verified Review

    Wanted a quote for an extension. Arranged for Seb to come round twice, first time he explained he had lost his phone and the second time he never turned up. Now I have been blocked on WhatsApp so I can not ask him what has happened. Very disappointed as he sounded so promising.

    Location: RG14
  • Fill in hole in house wall left by disused cat flap, including reinstating plasterwork

    10Verified Review

    Seb responded to the Checkatrade post within the hour and the work was done a couple of working days later. The guys were friendly and professional and honoured their perfectly reasonable quote even though the construction of the house wall clearly made it a bit tricky to get the inner course sorted. They took the time to match the bricks and, with a lick of paint on the inside, you pretty much can't tell there was ever a cat flap there.

    Location: RG14
  • Reinforce and remodel external wall including rebuilding brick post and then making good

    10Verified Review

    Seb and his team did a brilliant job, as well as always being friendly, polite, tidy and reliable. Always easy to contact and turns up when he says he will. Would recommend

    Location: RG20
  • House Extension and Renovation

    9.25Verified Review

    I had an amazing experience with SJ Construction, led by Seb, during my recent home renovation project. The team handled all aspects of the project, including material sourcing. Their communication was excellent, and they were patient and accommodating despite our changes. They were punctual, efficient, and respectful throughout the construction process. The finished result exceeded my expectations and I highly recommend SJ Construction to anyone looking for a reliable and skilled construction company.

    Location: RG14
  • Multiple jobs for my extension

    10Verified Review

    Very professional job, will use them again, I strongly recommend this company.

    Location: RG2
  • Double story wrap around extention

    10Verified Review

    The boys helped with planning and built my double wrap around extenion facing major problems in the geoundworks with main drains running through the center of the property. I was amazed with how quickly the project went up and the overall project turned out. I remain a great friend and will be getting them back for my next project . Highly recommended

    Location: RG2
Read all 11 reviews

Company profile

  • OwnerSebastian Woolford
  • Member Since2020
  • Public Liability InsuranceSelf-Certified
  • AddressChecked
  • IdentityChecked
  • Checkatrade T&C'sSigned
  • VATNo
  • Company typeSole Trader

Company info

Newbury-based SJ Construction offers high quality building and landscaping services across Berkshire and South Oxfordshire. Founder Sebastian Woolford has been operating in the local area since 2015 and prides himself in offering a competitively priced, considerate and dependable service.


The company offers all types of general building and landscaping work as well as your 1 off dreams. Free quotations from design to completion. 

Very friendly links to other trades like brilliant architects, private building inspectors and everyone that makes the team work as well as it can.  



Contact details