Skills
- Extensions / Conversions
- Garage Conversions
- Garden Studios
- Loft Conversions
- Refurbishments
- Architraves
- Bespoke Furniture
- Built In Furniture
- Cupboards
- Door Fitting / Hanging
- General Carpentry
- Handmade Kitchens Designed / Installed
- Joinery
Customer Reviews
Write a review9.91 /10
Based on 25 reviews over the past 12 months
Quality of work
9.88
Reliability
9.96
Communication
9.88
Reviews (25)
10 Carpenter
Posted 25 October
Lovely to work with, takes great pride in his work, gladly would hire again
I've had work done by Jonathan twice now - once a year ago when he did a beautiful job fitting engineered wood and new skirting boards throughout my ground floor and again recently when he did the same in our bedroom, as well as building beautiful shelves in my living room and sanding back and refinishing our stairs. Jonathan is a craftsman who takes great pride in his work and it's been a pleasure to work with him. Would gladly hire again in the future.Verified reviewerJob location: W510 Carpenter
Posted 08 October
Great work
An absolute pleasure dealing with Jonathan. A wizard of a chippie that can do things others weren’t prepared to even have a go at. Great skill, great communication, very professional. Would not hesitate to use on any job, big or small.Verified reviewerJob location: TW129.67 Cupboards
Posted 02 October
Good work
Work carried out smoothly and on time. Jonathan very friendly and efficient.Verified reviewerJob location: SL610 Builder
Posted 01 October
Good work and communication.
We contracted JM Carpentry to remove 20m of old wooden fence and part of retaining wall, rebuild the wall and install a composite fence. Jonathan provided a very detailed quotation for the work. The brickwork was very well done by Charlie. Extra wall capping was installed at no cost to correct levels and the composite fence installed professionally. The site was left clean and tidy. Communication with Jonathan was good throughout.Verified reviewerJob location: SL810 General Carpentry
Posted 24 August
Loft hatch repair
Really helpful, good communication, came on time and gave us a fair price - would definitely use again!Verified reviewerJob location: TW7REllie H9.67 Wooden / Timber Structures
Posted 24 August
new staircase and flooring installation
Jonathan and Mantas did a fantastic job installing my new staircase and flooring. from the first measuring up appointment to the week of the instal, communication remained very good. I left them too it and im very pleased with the final result. Will definitely use them again for future work.Verified reviewerJob location: HP13RPhil E
Photos
Company Info
Owner
Mr Jonathan McCormack
Sole Trader
Member since 2026
VAT Registered
No
Domestic WorkCommercial WorkFree Estimates
J M Carpentry started trading in 2012; the company covers Slough and is able to support homeowners with jobs in the following categories: Carpenter.
Accreditations and awards

City and Guilds
This trade passed up to 12 Checkatrade vetting checks
Member since January 2026
Individual checks
Identification
Proof of address
Financial
Qualifications and accreditations
County court judgement
Open source media
Business checks
Customer Reviews
Company trading history
Company duplication
County court judgement
Enhanced business check
Director checks