When writing an undertaking letter for construction work, clarity and politeness are essential. Clearly state your name, reference contract number, project details, start date, deadline, working hours, and safety precautions. Express gratitude and assure compliance. Avoid unclear language and ensure all necessary details are included.
Sample Undertaking Letter From Contractor for Construction
To,
The Manager,
__________ (Name of the Company)
__________ (Company’s Address)
Date: __/__/____ (Date)
Subject: Undertaking for construction work
Respected Sir/ Madam,
My name is _________ (name) and I write this letter in reference to contract number ________ (mention).
I write this letter to undertake that we will be working on your ________ (mention project name) project. The work shall begin from __/__/____ (date) onwards, and the tentative deadline for the same is __/__/____ (date). I would like to inform you that the working hours for the same project would be from __:__ (date) to __:__ (date). I hereby confirm that work would be done in _______ (one/two/three) shift/ shifts following all safety precautions.
Thank you,
________ (Signature),
________ (Name),
________ (Contact Number)
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Deepanshu Thakral 
Rahul Sharma